A Study to Evaluate the Efficacy and Safety of Two Doses of PF-03654746 in Adults With Attention Deficit Hyperactivity Disorder (ADHD).

Sponsor
Pfizer (Industry)
Overall Status
Completed
CT.gov ID
NCT00531752
Collaborator
(none)
66
7
3
9
9.4
1

Study Details

Study Description

Brief Summary

The purpose of this study is to determine whether PF-03654746 is effective in the treatment of Adult Attention Deficit Hyperactivity Disorder (ADHD). This will be a randomized, double-blind, crossover study in which adults with ADHD will receive 3 weeks of treatment with PF-03654746, either a low dose (1 mg), or flexible dose (0.50 mg titrated up to 2 mg), and 3 weeks of placebo. A washout period will separate the 2 treatment periods. Participants will be required to washout of prior ADHD medication before entering the study. Participants will be required to come to the site for 10 visits over approximately a 10-week period.

Condition or Disease Intervention/Treatment Phase
Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
66 participants
Allocation:
Randomized
Intervention Model:
Crossover Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
A Phase Iia, Randomized, Double Blind, Placebo Controlled, Three-treatment, Two-period Crossover Study Of The Efficacy And Safety Of Two Doses Of Pf-03654746 In Adults With Attention Deficit Hyperactivity Disorder
Study Start Date :
Dec 1, 2007
Actual Primary Completion Date :
Sep 1, 2008
Actual Study Completion Date :
Sep 1, 2008

Arms and Interventions

Arm Intervention/Treatment
Experimental: Flexible Dose

Drug: PF-03654746
Dosage Form: 0.5 mg capsules of PF-03654746 Dosage: 0.5 mg QD for Days 1-7, then 1.0 mg QD Days 8-14, then 2.0 mg QD Days 15-21

Placebo Comparator: Placebo

Drug: Placebo capsules
Dosage Form: matching placebo capsules Dosage: Subjects will take two placebo capsules each morning throughout the 3 week double-blind treatment placebo treatment period.

Experimental: Fixed Dose

Drug: PF-03654746
Dosage Form: 0.5 mg capsules of PF-03654746 Dosage: 1 mg (2 x 0.5 mg capsules) of PF-03654746 given daily for three weeks

Outcome Measures

Primary Outcome Measures

  1. Change From Baseline in Adult Attention Deficit Hyperactivity Disorder (ADHD) Investigator Symptom Rating Scale (AISRS) Total Score at Week 3 [Baseline, Week 3]

    AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.

Secondary Outcome Measures

  1. Change From Baseline in Adult Attention Deficit Hyperactivity Disorder (ADHD) Investigator Symptom Rating Scale (AISRS) Total Score at Week 1 and 2 [Baseline, Week 1, 2]

    AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.

  2. Percentage of Participants With at Least 30 Percent Decrease From Baseline in Adult ADHD Investigator Symptom Rating Scale (AISRS) Total Score [Week 1, 2, 3]

    AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.

  3. Percentage of Participants With 1 or 2 Score on Clinical Global Impression-Severity Scale (CGI-S) [Week 1, 2, 3]

    CGI-S: 7-point clinician rated scale to assess severity of participant's current illness state; range: 1 (normal - not ill at all) to 7 (among the most extremely ill patients). Higher score = more affected. Participants with a score of 1 (normal - not ill at all) or 2 (borderline mentally ill) are reported.

  4. Percentage of Participants With Less Than or Equal to 18 Score on Adult ADHD Investigator Symptom Rating Scale (AISRS) [Week 1, 2, 3]

    AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.

  5. Percentage of Participants With Sustained Response of at Least 30 Percent Decrease From Baseline in Time-Sensitive ADHD Symptom Scale (TASS) Total Score [Day 7, 14, 21]

    TASS: a time sensitive 18-item questionnaire completed by the participant that measured the severity of current ADHD symptoms. It included 9 items that evaluate symptoms of inattention sub-scale and 9 items that evaluate symptoms of impulsivity and hyperactivity sub-scale. Each item was rated from 0 (none) to 3 (severe). TASS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher total score corresponds to a worse severity of ADHD. TASS was administered each day from Day 1 to 14 and on Day 21 in each intervention period. Participants with sustained response were those who had at least 30 percent decrease from baseline in TASS total score, which was maintained at all visits up to the time of assessment. Sustained responders at Day 7, 14 and 21 were analyzed.

  6. Change From Baseline in Adult ADHD Investigator Symptom Rating Scale (AISRS) Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). The AISRS inattention and hyperactive/impulsive total subscale score range from 0 to 27. A higher total subscale score corresponded to a worse severity of ADHD inattention or hyperactivity/impulsivity.

  7. Change From Baseline in Time-Sensitive ADHD Symptom Scale (TASS) Total Score on Day 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 21 [Baseline, Day 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 21]

    TASS: a time sensitive 18-item questionnaire completed by the participant that measured the severity of current ADHD symptoms. It included 9 items that evaluate symptoms of inattention sub-scale and 9 items that evaluate symptoms of impulsivity and hyperactivity sub-scale. Each item was rated from 0 (none) to 3 (severe). TASS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher total score corresponded to a worse severity of ADHD. TASS was administered each day from Day 1 to 14 and on Day 21 in each intervention period.

  8. Change From Baseline in Montgomery Asberg Depression Rating Scale (MADRS) Total Score at Week 3 [Baseline, Week 3]

    The MADRS scale measures the depression level of a participant. It is administered as a semi-structured clinician interview. The total score is derived by adding the scores of the following 10 items: (1) Apparent sadness; (2) Reported sadness; (3) Inner tension; (4) Reduced sleep; (5) Reduced appetite; (6) Concentration difficulties; (7) Lassitude; (8) Inability to feel; (9) Pessimistic thoughts; (10) Suicidal thoughts. Each item is scored using a 6-point scale which ranges from 0 to 6 (a higher score indicates increased severity). The total score range was 0 to 60 where 0 indicates no depression and 60 indicates severely depressed.

  9. Change From Baseline in Hamilton Anxiety Scale (HAM-A) Total Score at Week 3 [Baseline, Week 3]

    HAM-A is a clinician-rated 14 item scale that provides an overall measure of global anxiety, including psychic (mental agitation and psychological distress) and somatic (physical complaints related to anxiety) symptoms. Each item was scored on a scale ranging from 0 (not present) to 4 (very severe) with a total score range of 0 to 56, where higher score indicates greater anxiety.

  10. Change From Baseline in ADHD Impact Module - Adults (AIM-A) Subscale Score at Week 3 [Baseline, Week 3]

    AIM-A: 66 item questionnaire completed by the participant to assess the impact of ADHD on the participant's quality of life. It is comprised of 4 global quality of life (QoL) items (current quality of life item [CQoLI], range:1 to 10; global limitation item [GLI]: range:1 to 4, on the right track item [RTI], range:1 to 3, more good days [GD] than bad days [BD], range:1 to 5, higher scores indicate a better QoL for all the 4 QoL items) and 6 multi-item subscales (living with ADHD, general well-being, performance and daily functioning [PDF], relationships and communication [R/C], Impact of symptoms-bother/concern [IS-B/C] scale, and impact of symptoms-interference [IS-I] scale). Participants responded to each item of multi-item subscale using a likert scale ranging from 1 (strongly agree) to 5 (strongly disagree). Multi-item subscale scores were calculated as an average of scores for the contributing items and transformed into 0 to 100 score where higher scores indicate a better QoL.

  11. Change From Baseline in Adult ADHD Quality of Life Scale (AAQOL) Subscale Score at Week 3 [Baseline, Week 3]

    AAQoL is a 29-item questionnaire consisting of 4 subscales: life productivity (11 items), psychological health ([PH] 6 items), life outlook (7 items) and relationships (5 items). Participants rated each item on a scale ranging from 1 (not at all/never) to 5 (extremely/very often). The scores of each item were then transformed to a 0 to 100 point scale, higher scores indicating better quality of life. The score for each subscale was calculated as the sum of the corresponding item scores. Total score ranges were: life productivity (0 to 1100), psychological health (0 to 600), life outlook (0 to 700) and relationships (0 to 500), where higher subscale score indicates better quality of life for each subscale.

  12. Change From Baseline in Sheehan Disability Scale (SDS) Subscale Scores at Week 3 [Baseline, Week 3]

    SDS was a participant-rated questionnaire assessing the effect of the participant's symptoms on the 3 domains/subscales: work/school, social life/leisure activities, and family/home management. Each domain was rated on visual analog scale ranges from 0 to 10 where 0=not at all impaired and 10=extremely impaired, and total SDS score was calculated as a sum of all the domains with a score range of 0=not at all impaired to 30=extremely impaired. Disability scores were reported for each of the domains/subscales. Higher scores reflect greater impairment.

Other Outcome Measures

  1. Change From Baseline in Medical Outcome Study - Sleep Scale (MOS-SS) Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    Participant-rated 12-item questionnaire to assess sleep quality and quantity. The items contribute to each scale and are averaged to create the 7 subscale scores: sleep disturbance, snoring, awaken short of breath (ASoB) or with a headache, somnolence, sleep adequacy, sleep quantity (range 0 to 24) and optimal sleep, and overall sleep problem index (SPI) I (range 0 to 600) and II. Except for sleep quantity and sleep problem index I, scores are transformed (actual raw score minus lowest possible score divided by possible raw score range* 100); total score range: 0 to 100; higher score = greater intensity of attribute. Except for sleep quantity, higher scores=greater impairment. Scales with at least one item answered was used to generate a scale score.

  2. Change From Baseline in Subjective Sleep Questionnaire (SSQ) Latency Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), total awake after sleep onset (WASO [1 item]), quality of sleep (1 item). Latency subscale score ranges from 0-840 minutes. Lower value indicates better sleep.

  3. Change From Baseline in Subjective Sleep Questionnaire (SSQ) Hours of Sleep Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Hours of sleep subscale score ranges from 0-16 hours. Higher value indicates better sleep.

  4. Change From Baseline in Subjective Sleep Questionnaire (SSQ) Number of Awakenings Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Number of awakenings subscale score ranges from 0 to 30. Lower value indicates better sleep.

  5. Change From Baseline in Subjective Sleep Questionnaire (SSQ) Total Awake After Sleep Onset (WASO) Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Total WASO subscale score ranges from 0 to 24 hours. Lower value indicates better sleep.

  6. Change From Baseline in Subjective Sleep Questionnaire (SSQ) Quality of Sleep Subscale Scores at Week 1, 2 and 3 [Baseline, Week 1, 2, 3]

    SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Quality of sleep subscale score ranges from 0-100. Higher score indicates better quality of sleep.

  7. Number of Participants With Clinically Significant Laboratory Test Abnormalities [Baseline up to 1 week after last study dose]

    Laboratory parameters included hematology (hemoglobin, hematocrit, red blood cell count, platelets, leukocytes, total neutrophils, eosinophils, basophils, lymphocytes, monocytes); liver function (total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, albumin, total protein); renal function (creatinine, blood urea nitrogen, uric acid, sodium, potassium, chloride, bicarbonate, calcium); urinalysis (protein, blood), and clinical chemistry (glucose).

  8. Number of Participants With Electrocardiogram (ECG) Findings [Baseline up to End of Treatment (Week 3 of period 2)]

    Criteria for potential clinical concern in ECG parameters: maximum PR interval of greater than or equal to (>=) 300 milliseconds (msec), maximum QRS interval >=200 msec, maximum QTc interval of 450 to <480 msec, 480 to <500 msec and >=500 msec.

  9. Number of Participants With Clinically Significant Vital Sign Abnormalities [Baseline up to 1 week after last study dose]

    Criteria for potential clinical concern in vital signs: systolic blood pressure (BP) less than (<) 90 millimeters of mercury (mmHg), diastolic BP <50 mmHg, supine and sitting heart rate <40 beats per minute (bpm) or >120 bpm, standing and erect heart rate <40 bpm or >140 bpm. Maximum increase from baseline in systolic BP >=30 mmHg, maximum increase from baseline in diastolic BP >=20 mmHg.

  10. Number of Participants With Change From Baseline in Physical Examination and Neurological Examination [Baseline up to 1 week after last study dose (1 week after end of Period 2)]

    Analysis include general physical examination and assessment of head, ears, eyes, ocular fundi, nose, mouth, throat, neck, thyroid, lungs, heart, breasts, abdomen and musculoskeletal system.

  11. Treatment Duration [Day 1 up to Day 21]

    Treatment duration was defined as the total number of dosing days from first to last day of study drug administration in each period.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 55 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:

Subjects with a diagnosis of Attention Deficit Hyperactivity Disorder, based on clinical assessment and interview.

Male and female outpatients. Subjects with a diagnosis of Attention Deficit Hyperactivity Disorder, based on clinical assessment and interview.

Female subjects must be of non-childbearing potential.

Exclusion Criteria:

Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular (including hypertension), hepatic, neurologic, or allergic disease.

Current or lifetime history of psychosis or bipolar disorder; any current anxiety disorder (with the exception of social or specific phobia), or substance abuse or dependence in the past 6 months.

Current episode of Major Depression or episode within the last 6 months.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Bay Area Research Institute Lafayette California United States 94549
2 Pharmacology Research Institute Los Alamitos California United States 90720
3 Pharmacology Research Institute Newport Beach California United States 92660
4 The University of Illinois at Chicago, Institute for Juvenile Research Chicago Illinois United States 60608
5 Massachusetts General Hospital, ADHD Program Cambridge Massachusetts United States 02138
6 New York University School of Medicine New York New York United States 10010
7 NeuroScience, Inc Herndon Virginia United States 20170

Sponsors and Collaborators

  • Pfizer

Investigators

  • Study Director: Pfizer CT.gov Call Center, Pfizer

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Pfizer
ClinicalTrials.gov Identifier:
NCT00531752
Other Study ID Numbers:
  • A8801004
  • 3-WK, CO MTD IN ADULTS W/ADHD
First Posted:
Sep 19, 2007
Last Update Posted:
Feb 19, 2016
Last Verified:
Jan 1, 2016

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Placebo First, Then PF-03654746 (Low Dose) PF-03654746 (Low Dose) First, Then Placebo Placebo First, Then PF-03654746 (Flexible Dose) PF-03654746 (Flexible Dose) First, Then Placebo
Arm/Group Description Placebo matched to PF-03654746 capsule orally once daily for 3 weeks in first double-blind (DB) intervention period and then low dose of PF-03654746 capsule 1 milligram (mg) orally once daily for 3 weeks in second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. Low dose of PF-03654746 capsule 1 mg orally once daily for 3 weeks in first DB intervention period and then placebo matched to PF-03654746 capsule orally once daily for 3 weeks in second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. Placebo matched to PF-03654746 capsule orally once daily in the first DB intervention period and then PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in the second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in the first DB intervention period and then placebo matched to PF-03654746 capsule orally once daily in the second DB intervention period. A washout period of at least 7 days was maintained between each treatment period.
Period Title: First Double-blind Intervention Period
STARTED 17 17 16 16
Treated 16 17 16 16
COMPLETED 11 13 9 13
NOT COMPLETED 6 4 7 3
Period Title: First Double-blind Intervention Period
STARTED 11 13 9 13
COMPLETED 11 13 9 13
NOT COMPLETED 0 0 0 0
Period Title: First Double-blind Intervention Period
STARTED 11 13 9 13
COMPLETED 9 11 9 11
NOT COMPLETED 2 2 0 2

Baseline Characteristics

Arm/Group Title Placebo First, Then PF-03654746 (Low Dose) PF-03654746 (Low Dose) First, Then Placebo Placebo First, Then PF-03654746 (Flexible Dose) PF-03654746 (Flexible Dose) First, Then Placebo Total
Arm/Group Description Placebo matched to PF-03654746 capsule orally once daily for 3 weeks in first double-blind (DB) intervention period and then low dose of PF-03654746 capsule 1 milligram (mg) orally once daily for 3 weeks in second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. Low dose of PF-03654746 capsule 1 mg orally once daily for 3 weeks in first DB intervention period and then placebo matched to PF-03654746 capsule orally once daily for 3 weeks in second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. Placebo matched to PF-03654746 capsule orally once daily in the first DB intervention period and then PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in the second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in the first DB intervention period and then placebo matched to PF-03654746 capsule orally once daily in the second DB intervention period. A washout period of at least 7 days was maintained between each treatment period. Total of all reporting groups
Overall Participants 16 17 16 16 65
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
37.3
(12.6)
38.4
(10.6)
37.9
(10.2)
35.9
(9.6)
37.4
(10.6)
Sex: Female, Male (Count of Participants)
Female
0
0%
0
0%
0
0%
0
0%
0
0%
Male
16
100%
17
100%
16
100%
16
100%
65
100%

Outcome Measures

1. Primary Outcome
Title Change From Baseline in Adult Attention Deficit Hyperactivity Disorder (ADHD) Investigator Symptom Rating Scale (AISRS) Total Score at Week 3
Description AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.
Time Frame Baseline, Week 3

Outcome Measure Data

Analysis Population Description
Per Protocol (PP) set: all participants included in full analysis set (FAS=who received at least[>=]1 dose of randomized study drug,had baseline and >=1 post-baseline measurement of primary efficacy variable)and had no major protocol violation affecting primary efficacy variable. n=participants evaluable at specified time points for each arm.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
36.778
(8.5545)
38.273
(4.8715)
36.135
(7.3592)
Change at Week 3 (n=25, 21, 48)
-7.196
(8.7318)
-5.745
(9.9824)
-6.789
(8.5734)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6749
Comments P-values are not adjusted for multiple comparisons.
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter Least Squares (LS) Mean Difference
Estimated Value 0.7947
Confidence Interval (2-Sided) 80%
-1.649 to 3.2383
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.8848
Estimation Comments Positive value for the LS mean difference indicates the estimate favors placebo.
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4886
Comments P-values are not adjusted for multiple comparisons.
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.4176
Confidence Interval (2-Sided) 80%
-1.218 to 4.0533
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.0343
Estimation Comments Positive value for the LS mean difference indicates the estimate favors placebo.
2. Secondary Outcome
Title Change From Baseline in Adult Attention Deficit Hyperactivity Disorder (ADHD) Investigator Symptom Rating Scale (AISRS) Total Score at Week 1 and 2
Description AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.
Time Frame Baseline, Week 1, 2

Outcome Measure Data

Analysis Population Description
PP analysis set:all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this measure and 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 26 22 50
Week 1 (n=26, 22, 50)
-4.942
(6.2005)
-3.591
(8.3476)
-5.524
(7.4545)
Week 2 (n=23, 20, 46)
-6.022
(7.1486)
-5.7
(7.8143)
-7.109
(6.6139)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5643
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.0250
Confidence Interval (2-Sided) 80%
-1.262 to 3.3121
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.7713
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3107
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.9146
Confidence Interval (2-Sided) 80%
-0.5100 to 4.3392
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.8777
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1196
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.3154
Confidence Interval (2-Sided) 80%
0.41601 to 4.2148
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.4638
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3872
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.3288
Confidence Interval (2-Sided) 80%
-0.6490 to 3.3065
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.5240
Estimation Comments
3. Secondary Outcome
Title Percentage of Participants With at Least 30 Percent Decrease From Baseline in Adult ADHD Investigator Symptom Rating Scale (AISRS) Total Score
Description AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.
Time Frame Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set:all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this measure and 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 26 22 50
Week 1 (n=26, 22, 50)
15.385
96.2%
13.636
80.2%
24
150%
Week 2 (n=23, 20, 46)
26.087
163%
30
176.5%
30.435
190.2%
Week 3 (n=25, 21, 48)
24
150%
23.81
140.1%
29.167
182.3%
4. Secondary Outcome
Title Percentage of Participants With 1 or 2 Score on Clinical Global Impression-Severity Scale (CGI-S)
Description CGI-S: 7-point clinician rated scale to assess severity of participant's current illness state; range: 1 (normal - not ill at all) to 7 (among the most extremely ill patients). Higher score = more affected. Participants with a score of 1 (normal - not ill at all) or 2 (borderline mentally ill) are reported.
Time Frame Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set:all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this measure and 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 26 22 50
Week 1 (n=26, 22, 50)
3.846
24%
4.545
26.7%
2
12.5%
Week 2 (n=23, 20, 49)
0.0
0%
5
29.4%
4.082
25.5%
Week 3 (n=25, 21, 50)
8
50%
4.762
28%
6
37.5%
5. Secondary Outcome
Title Percentage of Participants With Less Than or Equal to 18 Score on Adult ADHD Investigator Symptom Rating Scale (AISRS)
Description AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). AISRS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher score corresponded to a worse severity of ADHD.
Time Frame Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set:all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this measure and 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 26 22 50
Week 1 (n=26, 22, 50)
11.538
72.1%
4.545
26.7%
14
87.5%
Week 2 (n=23, 20, 46)
21.739
135.9%
10
58.8%
13.043
81.5%
Week 3 (n=25, 21, 48)
16
100%
14.286
84%
16.667
104.2%
6. Secondary Outcome
Title Percentage of Participants With Sustained Response of at Least 30 Percent Decrease From Baseline in Time-Sensitive ADHD Symptom Scale (TASS) Total Score
Description TASS: a time sensitive 18-item questionnaire completed by the participant that measured the severity of current ADHD symptoms. It included 9 items that evaluate symptoms of inattention sub-scale and 9 items that evaluate symptoms of impulsivity and hyperactivity sub-scale. Each item was rated from 0 (none) to 3 (severe). TASS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher total score corresponds to a worse severity of ADHD. TASS was administered each day from Day 1 to 14 and on Day 21 in each intervention period. Participants with sustained response were those who had at least 30 percent decrease from baseline in TASS total score, which was maintained at all visits up to the time of assessment. Sustained responders at Day 7, 14 and 21 were analyzed.
Time Frame Day 7, 14, 21

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this measure and 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 21 18 45
Day 7 (n=21, 18, 45)
38.095
238.1%
27.778
163.4%
33.333
208.3%
Day 14 (n=17, 16, 35)
23.529
147.1%
31.25
183.8%
31.429
196.4%
Day 21 (n=9, 6, 22)
33.333
208.3%
16.667
98%
40.909
255.7%
7. Secondary Outcome
Title Change From Baseline in Adult ADHD Investigator Symptom Rating Scale (AISRS) Subscale Scores at Week 1, 2 and 3
Description AISRS: an 18-item scale administered by the investigator. It included 9 items that evaluated symptoms of inattention and 9 items that evaluated symptoms of impulsivity and hyperactivity. Each item was rated from 0 (none) to 3 (severe). The AISRS inattention and hyperactive/impulsive total subscale score range from 0 to 27. A higher total subscale score corresponded to a worse severity of ADHD inattention or hyperactivity/impulsivity.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set:all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'N' (number of participants analyzed) signifies participants who were evaluable for this measure and 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 26 22 50
Week 1: Inattention (n=26, 22, 50)
-3.423
(3.6241)
-1.636
(4.7338)
-3.36
(4.3986)
Week 2: Inattention (n=23, 20, 46)
-4.326
(5.2627)
-2.65
(4.5541)
-4.022
(4.2985)
Week 3: Inattention (n=25, 21, 48)
-4.085
(5.7909)
-3.31
(5.8019)
-3.719
(5.195)
Week 1: Hyperactivity/Impulsivity (n=26, 22, 50)
-1.519
(3.708)
-1.955
(4.0027)
-2.164
(3.7001)
Week 2: Hyperactivity/Impulsivity (n=23, 20, 46)
-1.696
(3.1935)
-3.05
(3.9766)
-3.087
(3.2614)
Week 3: Hyperactivity/Impulsivity (n=25, 21, 48)
-3.111
(4.1894)
-2.435
(4.8666)
-3.07
(4.2411)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Inattention): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8708
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1677
Confidence Interval (2-Sided) 80%
-1.162 to 1.4971
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.0269
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Inattention): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0927
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.8607
Confidence Interval (2-Sided) 80%
0.44874 to 3.2726
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.0912
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Hyperactivity/Impulsivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3405
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.8660
Confidence Interval (2-Sided) 80%
-0.3008 to 2.0329
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.9037
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Hyperactivity/Impulsivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8665
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1623
Confidence Interval (2-Sided) 80%
-1.080 to 1.4047
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.9622
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Inattention): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6901
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.3886
Confidence Interval (2-Sided) 80%
-0.8694 to 1.6466
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.9694
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Inattention): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1790
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.3779
Confidence Interval (2-Sided) 80%
0.06498 to 2.6908
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.0114
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Hyperactivity/Impulsivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0156
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.8759
Confidence Interval (2-Sided) 80%
0.90156 to 2.8502
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.7508
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Hyperactivity/Impulsivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9573
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.04217
Confidence Interval (2-Sided) 80%
-1.060 to 0.97559
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.7842
Estimation Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Inattention): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8986
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1602
Confidence Interval (2-Sided) 80%
-1.462 to 1.7820
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.2517
Estimation Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Inattention): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6204
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.6688
Confidence Interval (2-Sided) 80%
-1.071 to 2.4086
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.3437
Estimation Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Hyperactivity/Impulsivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5759
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.4920
Confidence Interval (2-Sided) 80%
-0.6421 to 1.6261
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.8742
Estimation Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Hyperactivity/Impulsivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3603
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.8750
Confidence Interval (2-Sided) 80%
-0.3552 to 2.1051
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.9488
Estimation Comments
8. Secondary Outcome
Title Change From Baseline in Time-Sensitive ADHD Symptom Scale (TASS) Total Score on Day 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 21
Description TASS: a time sensitive 18-item questionnaire completed by the participant that measured the severity of current ADHD symptoms. It included 9 items that evaluate symptoms of inattention sub-scale and 9 items that evaluate symptoms of impulsivity and hyperactivity sub-scale. Each item was rated from 0 (none) to 3 (severe). TASS total score was calculated as sum of all the items on the scale and ranged from 0 to 54. A higher total score corresponded to a worse severity of ADHD. TASS was administered each day from Day 1 to 14 and on Day 21 in each intervention period.
Time Frame Baseline, Day 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 21

Outcome Measure Data

Analysis Population Description
Analysis population included all participants in PP analysis set and 1 additional participant in PF-03654746 (Flexible Dose) for whom the post-baseline data was available.'N' (number of participants analyzed)=evaluable participants for this measure and 'n'= evaluable participants for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 23 50
Day 1 (n=25, 22, 50)
-0.46
(5.3384)
2.205
(14.9217)
-4.75
(6.7221)
Day 2 (n=25, 21, 49)
-1.78
(6.8679)
-0.952
(13.4433)
-6.031
(10.2938)
Day 3 (n=26, 21, 49)
-2.798
(12.1305)
-3.857
(10.0476)
-3.51
(10.3282)
Day 4 (n=26, 22, 46)
-4.981
(8.8346)
-1.068
(14.4018)
-3.761
(9.682)
Day 5 (n=26, 23, 49)
-4.942
(7.7153)
-1.87
(10.2239)
-6.622
(8.9353)
Day 6 (n=27, 22, 44)
-5.833
(7.3183)
-3.205
(10.5984)
-6.841
(9.9573)
Day 7 (n=21, 18, 45)
-6.381
(7.7619)
-6.222
(11.2736)
-4.789
(9.7044)
Day 8 (n=21, 19, 46)
-5.952
(7.0709)
-6.526
(9.7389)
-5.272
(9.804)
Day 9 (n=21, 18, 45)
-4.238
(6.1352)
-5.889
(9.9979)
-5.889
(10.8664)
Day 10 (n=20, 20, 46)
-5.75
(6.9689)
-7.525
(9.6579)
-6.837
(10.7755)
Day 11 (n=21, 20, 46)
-5.619
(6.7341)
-5.875
(11.2377)
-6.924
(10.4371)
Day 12 (n=20, 18, 44)
-6.45
(7.3947)
-6.167
(10.3099)
-6.295
(10.3622)
Day 13 (n=22, 19, 43)
-6.091
(6.4284)
-5.658
(11.024)
-7.488
(7.9279)
Day 14 (n=17, 16, 35)
-5.147
(6.7818)
-7.5
(11.0559)
-2.506
(25.19)
Day 21 (n=9, 6, 22)
-9.889
(7.474)
-4.583
(8.4346)
-8.295
(8.299)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0392
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.5306
Confidence Interval (2-Sided) 80%
1.3659 to 5.6952
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.6664
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0003
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 6.9344
Confidence Interval (2-Sided) 80%
4.6177 to 9.2512
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.7848
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0547
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 4.2888
Confidence Interval (2-Sided) 80%
1.4544 to 7.1232
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.1861
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0176
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 5.6799
Confidence Interval (2-Sided) 80%
2.6655 to 8.6943
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.3261
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7750
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.7203
Confidence Interval (2-Sided) 80%
-2.530 to 3.9704
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.5085
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9874
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.04276
Confidence Interval (2-Sided) 80%
-3.521 to 3.4357
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.6874
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 4: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7799
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.6252
Confidence Interval (2-Sided) 80%
-3.513 to 2.2629
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2268
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 4: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1881
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.1136
Confidence Interval (2-Sided) 80%
0.08338 to 6.1438
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.3365
Estimation Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 5: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4032
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.6575
Confidence Interval (2-Sided) 80%
-0.8944 to 4.2094
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.9677
Estimation Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 5: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0059
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 5.9254
Confidence Interval (2-Sided) 80%
3.2314 to 8.6193
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.0796
Estimation Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 6: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6067
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.0921
Confidence Interval (2-Sided) 80%
-1.643 to 3.8273
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.1098
Estimation Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 6: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0614
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 4.2785
Confidence Interval (2-Sided) 80%
1.3709 to 7.1860
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2424
Estimation Comments
Statistical Analysis 13
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 7: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7476
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.7149
Confidence Interval (2-Sided) 80%
-3.584 to 2.1546
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2086
Estimation Comments
Statistical Analysis 14
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 7: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5863
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -1.3355
Confidence Interval (2-Sided) 80%
-4.499 to 1.8284
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.4396
Estimation Comments
Statistical Analysis 15
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 8: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9591
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.1058
Confidence Interval (2-Sided) 80%
-2.771 to 2.5593
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.0529
Estimation Comments
Statistical Analysis 16
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 8: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8442
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.4352
Confidence Interval (2-Sided) 80%
-3.294 to 2.4238
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2048
Estimation Comments
Statistical Analysis 17
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 9: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1977
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.6876
Confidence Interval (2-Sided) 80%
0.01391 to 5.3613
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.0533
Estimation Comments
Statistical Analysis 18
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 9: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4235
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.8149
Confidence Interval (2-Sided) 80%
-1.108 to 4.7375
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2467
Estimation Comments
Statistical Analysis 19
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 10: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1882
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.6424
Confidence Interval (2-Sided) 80%
0.07015 to 5.2147
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.9753
Estimation Comments
Statistical Analysis 20
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 10: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5555
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.2105
Confidence Interval (2-Sided) 80%
-1.440 to 3.8615
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.0376
Estimation Comments
Statistical Analysis 21
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 11: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1533
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.1804
Confidence Interval (2-Sided) 80%
0.33169 to 6.0292
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.1934
Estimation Comments
Statistical Analysis 22
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 11: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3697
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.0511
Confidence Interval (2-Sided) 80%
-0.8912 to 4.9934
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2662
Estimation Comments
Statistical Analysis 23
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 12: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4652
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.7640
Confidence Interval (2-Sided) 80%
-1.352 to 4.8801
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.3939
Estimation Comments
Statistical Analysis 24
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 12: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8626
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.4377
Confidence Interval (2-Sided) 80%
-2.830 to 3.7058
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.5148
Estimation Comments
Statistical Analysis 25
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 13: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0261
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.7114
Confidence Interval (2-Sided) 80%
1.6105 to 5.8122
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.6168
Estimation Comments
Statistical Analysis 26
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 13: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1895
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.2644
Confidence Interval (2-Sided) 80%
0.05330 to 4.4756
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.7026
Estimation Comments
Statistical Analysis 27
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 14: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4994
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.1151
Confidence Interval (2-Sided) 80%
-1.961 to 6.1913
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.0732
Estimation Comments
Statistical Analysis 28
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 14: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2945
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.5616
Confidence Interval (2-Sided) 80%
-0.8226 to 7.9458
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.3113
Estimation Comments
Statistical Analysis 29
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Day 21: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8056
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.7306
Confidence Interval (2-Sided) 80%
-4.622 to 3.1613
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.9257
Estimation Comments
Statistical Analysis 30
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 21: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3922
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.3672
Confidence Interval (2-Sided) 80%
-1.725 to 8.4592
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.8657
Estimation Comments
9. Secondary Outcome
Title Change From Baseline in Montgomery Asberg Depression Rating Scale (MADRS) Total Score at Week 3
Description The MADRS scale measures the depression level of a participant. It is administered as a semi-structured clinician interview. The total score is derived by adding the scores of the following 10 items: (1) Apparent sadness; (2) Reported sadness; (3) Inner tension; (4) Reduced sleep; (5) Reduced appetite; (6) Concentration difficulties; (7) Lassitude; (8) Inability to feel; (9) Pessimistic thoughts; (10) Suicidal thoughts. Each item is scored using a 6-point scale which ranges from 0 to 6 (a higher score indicates increased severity). The total score range was 0 to 60 where 0 indicates no depression and 60 indicates severely depressed.
Time Frame Baseline, Week 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
6.63
(3.9918)
7.773
(5.0231)
6.962
(4.5631)
Change at Week 3 (n=21, 19, 42)
-2.19
(3.9353)
-1.289
(3.728)
-0.524
(5.1572)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0913
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -1.5069
Confidence Interval (2-Sided) 80%
-2.643 to -0.3705
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.8744
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Day 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8216
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.2078
Confidence Interval (2-Sided) 80%
-1.399 to 0.98326
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.9165
Estimation Comments
10. Secondary Outcome
Title Change From Baseline in Hamilton Anxiety Scale (HAM-A) Total Score at Week 3
Description HAM-A is a clinician-rated 14 item scale that provides an overall measure of global anxiety, including psychic (mental agitation and psychological distress) and somatic (physical complaints related to anxiety) symptoms. Each item was scored on a scale ranging from 0 (not present) to 4 (very severe) with a total score range of 0 to 56, where higher score indicates greater anxiety.
Time Frame Baseline, Week 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
5.333
(3.9223)
6.045
(3.848)
5.327
(3.3238)
Change at Week 3 (n=18, 21, 39)
-0.944
(2.514)
-0.19
(2.5518)
-0.487
(2.7732)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5466
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.4181
Confidence Interval (2-Sided) 80%
-1.313 to 0.47668
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.6887
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9705
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.02518
Confidence Interval (2-Sided) 80%
-0.9035 to 0.85312
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.6772
Estimation Comments
11. Secondary Outcome
Title Change From Baseline in ADHD Impact Module - Adults (AIM-A) Subscale Score at Week 3
Description AIM-A: 66 item questionnaire completed by the participant to assess the impact of ADHD on the participant's quality of life. It is comprised of 4 global quality of life (QoL) items (current quality of life item [CQoLI], range:1 to 10; global limitation item [GLI]: range:1 to 4, on the right track item [RTI], range:1 to 3, more good days [GD] than bad days [BD], range:1 to 5, higher scores indicate a better QoL for all the 4 QoL items) and 6 multi-item subscales (living with ADHD, general well-being, performance and daily functioning [PDF], relationships and communication [R/C], Impact of symptoms-bother/concern [IS-B/C] scale, and impact of symptoms-interference [IS-I] scale). Participants responded to each item of multi-item subscale using a likert scale ranging from 1 (strongly agree) to 5 (strongly disagree). Multi-item subscale scores were calculated as an average of scores for the contributing items and transformed into 0 to 100 score where higher scores indicate a better QoL.
Time Frame Baseline, Week 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline: CQoLI (n=27, 22, 52)
6.481
(1.2746)
6.409
(1.1406)
6.423
(1.1219)
Baseline: GLI (n=27, 22, 52)
1.815
(0.7091)
1.705
(0.7505)
1.663
(0.624)
Baseline: RTI (n=27, 22, 52)
1.944
(0.5938)
2.068
(0.3872)
1.99
(0.4999)
Baseline: More GD than BD (n=27, 22, 52)
2.259
(0.7642)
2.682
(0.8803)
2.529
(0.8069)
Baseline: Living with ADHD (n=27, 22, 52)
53.935
(9.587)
49.773
(12.4202)
51.058
(10.5294)
Baseline: General well-being (n=27, 22, 52)
54.377
(11.1639)
50.413
(17.2322)
50.83
(13.2045)
Baseline: PDF (n=27, 22, 52)
37.176
(15.634)
34.489
(15.3756)
34.688
(13.5081)
Baseline: R/C (n=27, 22, 52)
65.856
(16.2652)
57.955
(15.7281)
61.358
(14.7036)
Baseline: IS-B/C (n=27, 22, 52)
44.753
(16.8364)
42.235
(19.7475)
42.201
(16.7033)
Baseline: IS-I (n=27, 22, 52)
47.994
(10.1284)
46.78
(9.1366)
46.768
(8.8729)
Change at Week 3: CQoLI (n=25, 21, 47)
0.04
(0.9456)
0.286
(1.2306)
0.17
(1.3116)
Change at Week 3: GLI (n=25, 21, 47)
0.2
(0.4564)
0.214
(0.7676)
0.106
(0.6421)
Change at Week 3: RTI (n=25, 21, 47)
-0.02
(0.5492)
-0.071
(0.6381)
-0.074
(0.5612)
Change at Week 3: More GD than BD (n=25, 21, 47)
-0.32
(0.6272)
-0.238
(0.9826)
-0.106
(0.9997)
Change at Week 3: Living with ADHD (n=25, 21, 47)
2.55
(4.5712)
1.905
(5.5145)
3.005
(7.2121)
Change at Week 3:General well-being (n=25, 21, 47)
4.909
(7.1999)
1.299
(8.9642)
4.884
(10.3145)
Change at Week 3: PDF (n=25, 21, 47)
12.65
(14.0698)
11.488
(21.7501)
10.718
(18.3226)
Change at Week 3: R/C (n=25, 21, 47)
5.125
(13.0457)
0.298
(16.3773)
3.358
(13.4687)
Change at Week 3: IS-B/C (n=25, 21, 47)
3
(12.9465)
0.463
(18.6097)
7.417
(13.7471)
Change at Week 3: IS-I (n=25, 21, 47)
2.389
(8.2023)
0.463
(9.3204)
2.896
(10.6124)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (CQoL): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7415
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.09953
Confidence Interval (2-Sided) 80%
-0.4892 to 0.29012
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.3001
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (CQoL): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8822
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.04804
Confidence Interval (2-Sided) 80%
-0.3703 to 0.46640
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.3227
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (GLI): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3414
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1250
Confidence Interval (2-Sided) 80%
-0.0439 to 0.29385
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1302
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (GLI): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4642
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1044
Confidence Interval (2-Sided) 80%
-0.0793 to 0.28814
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1418
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (RTI): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5049
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.06109
Confidence Interval (2-Sided) 80%
-0.0571 to 0.17926
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.09093
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (RTI): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4332
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.07917
Confidence Interval (2-Sided) 80%
-0.0510 to 0.20930
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1002
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (More GD than BD): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1678
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.2453
Confidence Interval (2-Sided) 80%
-0.4730 to -0.0177
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1753
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (More GD than BD): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6901
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.07717
Confidence Interval (2-Sided) 80%
-0.1726 to 0.32695
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1925
Estimation Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Living with ADHD): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9005
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1702
Confidence Interval (2-Sided) 80%
-1.587 to 1.9274
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.3540
Estimation Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Living with ADHD): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3330
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -1.4317
Confidence Interval (2-Sided) 80%
-3.333 to 0.46937
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.4667
Estimation Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (General well-being): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7551
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.6537
Confidence Interval (2-Sided) 80%
-2.051 to 3.3584
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.0857
Estimation Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (General well-being): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0334
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -4.8639
Confidence Interval (2-Sided) 80%
-7.759 to -1.968
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.2354
Estimation Comments
Statistical Analysis 13
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (PDF): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6519
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.6389
Confidence Interval (2-Sided) 80%
-3.050 to 6.3281
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.6119
Estimation Comments
Statistical Analysis 14
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (PDF): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7631
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.2007
Confidence Interval (2-Sided) 80%
-3.941 to 6.3423
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.9647
Estimation Comments
Statistical Analysis 15
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (R/C): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3034
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.9211
Confidence Interval (2-Sided) 80%
-0.7227 to 6.5648
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.8206
Estimation Comments
Statistical Analysis 16
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (R/C): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0933
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -5.0968
Confidence Interval (2-Sided) 80%
-8.975 to -1.218
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.0022
Estimation Comments
Statistical Analysis 17
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (IS-B/C): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0949
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -5.0675
Confidence Interval (2-Sided) 80%
-8.934 to -1.201
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.9778
Estimation Comments
Statistical Analysis 18
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (IS-B/C): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0283
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -7.3274
Confidence Interval (2-Sided) 80%
-11.55 to -3.106
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.2552
Estimation Comments
Statistical Analysis 19
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (IS-I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1852
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -2.1505
Confidence Interval (2-Sided) 80%
-4.229 to -0.0719
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.5974
Estimation Comments
Statistical Analysis 20
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (IS-I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1623
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -2.5178
Confidence Interval (2-Sided) 80%
-4.823 to -0.2127
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.7732
Estimation Comments
12. Secondary Outcome
Title Change From Baseline in Adult ADHD Quality of Life Scale (AAQOL) Subscale Score at Week 3
Description AAQoL is a 29-item questionnaire consisting of 4 subscales: life productivity (11 items), psychological health ([PH] 6 items), life outlook (7 items) and relationships (5 items). Participants rated each item on a scale ranging from 1 (not at all/never) to 5 (extremely/very often). The scores of each item were then transformed to a 0 to 100 point scale, higher scores indicating better quality of life. The score for each subscale was calculated as the sum of the corresponding item scores. Total score ranges were: life productivity (0 to 1100), psychological health (0 to 600), life outlook (0 to 700) and relationships (0 to 500), where higher subscale score indicates better quality of life for each subscale.
Time Frame Baseline, Week 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline: Life productivity (n=27, 22, 52)
306.481
(109.9809)
292.045
(72.5334)
281.25
(107.9982)
Baseline: Psychological health (n=27, 22, 52)
163.889
(42.9296)
146.591
(66.0517)
167.788
(59.4782)
Baseline: Life outlook (n=27, 22, 52)
229.63
(65.7929)
194.318
(69.8348)
218.269
(59.0188)
Baseline: Relationships (n=27, 22, 52)
152.778
(49.1922)
154.545
(46.0566)
163.942
(49.856)
Change at Week 3: Life productivity (n=25, 21, 47)
3
(84.1068)
8.333
(112.7312)
22.606
(85.7606)
Change at Week 3: PH (n=25, 21, 47)
0
(50.5181)
1.786
(57.1847)
11.436
(63.9415)
Change at Week 3: Life outlook (n=25, 21, 47)
-13
(56.9951)
14.286
(68.9526)
-8.511
(42.6776)
Change at Week 3: Relationships (n=25, 21, 47)
-1.5
(31.9342)
1.19
(46.2508)
-3.723
(45.662)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Life productivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5241
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -11.5791
Confidence Interval (2-Sided) 80%
-35.02 to 11.860
Parameter Dispersion Type: Standard Error of the Mean
Value: 18.0449
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Life productivity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3065
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -20.3367
Confidence Interval (2-Sided) 80%
-45.89 to 5.2183
Parameter Dispersion Type: Standard Error of the Mean
Value: 19.6995
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Psychological health): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3831
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -11.7878
Confidence Interval (2-Sided) 80%
-29.15 to 5.5793
Parameter Dispersion Type: Standard Error of the Mean
Value: 13.4438
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Psychological health): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3657
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -13.1401
Confidence Interval (2-Sided) 80%
-31.80 to 5.5241
Parameter Dispersion Type: Standard Error of the Mean
Value: 14.4478
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Life outlook): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8188
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.6660
Confidence Interval (2-Sided) 80%
-12.36 to 17.690
Parameter Dispersion Type: Standard Error of the Mean
Value: 11.5818
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Life outlook): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0566
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 24.1011
Confidence Interval (2-Sided) 80%
8.0305 to 40.172
Parameter Dispersion Type: Standard Error of the Mean
Value: 12.4050
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Relationships): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9312
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.7559
Confidence Interval (2-Sided) 80%
-10.55 to 12.057
Parameter Dispersion Type: Standard Error of the Mean
Value: 8.7164
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Relationships): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5194
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 6.1138
Confidence Interval (2-Sided) 80%
-6.108 to 18.336
Parameter Dispersion Type: Standard Error of the Mean
Value: 9.4361
Estimation Comments
13. Secondary Outcome
Title Change From Baseline in Sheehan Disability Scale (SDS) Subscale Scores at Week 3
Description SDS was a participant-rated questionnaire assessing the effect of the participant's symptoms on the 3 domains/subscales: work/school, social life/leisure activities, and family/home management. Each domain was rated on visual analog scale ranges from 0 to 10 where 0=not at all impaired and 10=extremely impaired, and total SDS score was calculated as a sum of all the domains with a score range of 0=not at all impaired to 30=extremely impaired. Disability scores were reported for each of the domains/subscales. Higher scores reflect greater impairment.
Time Frame Baseline, Week 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for given subscale at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline: Work/school (n=26, 21, 50)
6.058
(2.2375)
6.095
(2.0894)
6.36
(1.977)
Baseline: Social life (n=27, 22, 52)
4.593
(2.0383)
5.227
(2.5153)
5.01
(2.0757)
Baseline: Family life/home (n=27, 22, 52)
5.019
(2.0357)
5.705
(2.0393)
5.673
(1.8335)
Change at Week 3: Work/school (n=24, 18, 45)
-0.813
(1.3089)
-0.222
(2.2572)
-0.411
(1.7526)
Change at Week 3: Social life (n=25, 21, 47)
-0.8
(1.75)
-0.619
(2.4592)
-0.436
(1.9043)
Change at Week 3: Family life/home (n=25, 21, 47)
-0.78
(1.5618)
-0.071
(2.2709)
-0.532
(1.6596)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Work/school): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3320
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.3255
Confidence Interval (2-Sided) 80%
-0.7573 to 0.10622
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.3320
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Work/school): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2767
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.4255
Confidence Interval (2-Sided) 80%
-0.0769 to 0.92804
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.3871
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Social life): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3675
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.3661
Confidence Interval (2-Sided) 80%
-0.8887 to 0.15660
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.4028
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Social life): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8141
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.1033
Confidence Interval (2-Sided) 80%
-0.6700 to 0.46345
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.4372
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Family life/home): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6186
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.1854
Confidence Interval (2-Sided) 80%
-0.6657 to 0.29495
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.3702
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Family life/home): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3720
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.3623
Confidence Interval (2-Sided) 80%
-0.1597 to 0.88432
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.4028
Estimation Comments
14. Other Pre-specified Outcome
Title Change From Baseline in Medical Outcome Study - Sleep Scale (MOS-SS) Subscale Scores at Week 1, 2 and 3
Description Participant-rated 12-item questionnaire to assess sleep quality and quantity. The items contribute to each scale and are averaged to create the 7 subscale scores: sleep disturbance, snoring, awaken short of breath (ASoB) or with a headache, somnolence, sleep adequacy, sleep quantity (range 0 to 24) and optimal sleep, and overall sleep problem index (SPI) I (range 0 to 600) and II. Except for sleep quantity and sleep problem index I, scores are transformed (actual raw score minus lowest possible score divided by possible raw score range* 100); total score range: 0 to 100; higher score = greater intensity of attribute. Except for sleep quantity, higher scores=greater impairment. Scales with at least one item answered was used to generate a scale score.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline: Sleep disturbance (n=27, 22, 52)
27.894
(19.427)
34.489
(20.6801)
29.892
(20.4408)
Baseline: Snoring (n=26, 22, 51)
43.462
(29.1125)
44.091
(32.9009)
40.784
(29.9895)
Baseline: ASoB (n=27, 22, 52)
3.333
(8.7706)
7.727
(17.7098)
6.154
(14.1635)
Baseline: Sleep quantity (n=27, 22, 52)
6.537
(0.95)
6.705
(0.9594)
6.673
(1.0379)
Baseline: Optimal sleep (n=27, 22, 52)
1.593
(0.4169)
1.5
(0.4082)
1.558
(0.416)
Baseline: Sleep adequacy (n=26, 22, 51)
40.962
(22.8044)
41.364
(26.1944)
39.804
(23.4512)
Baseline: Somnolence (n=26, 22, 51)
31.795
(19.6238)
32.727
(19.5893)
30.85
(20.2522)
Baseline: SPI I (n=26, 22, 51)
201.538
(69.0329)
214.091
(109.1377)
210.196
(87.7836)
Baseline: SPI II (n=27, 22, 52)
33.251
(12.8016)
37.519
(18.3575)
34.848
(15.5578)
Change at Week 1: Sleep disturbance (n=26, 22, 50)
18.245
(30.9066)
4.489
(23.7105)
-8.263
(18.8354)
Change at Week 1: Snoring (n=25, 21, 48)
-14.8
(19.1746)
-4.286
(17.7684)
-10.417
(14.1359)
Change at Week 1: ASoB (n=26, 22, 50)
4.231
(15.7919)
-2.273
(9.2231)
-1.6
(14.3371)
Change at Week 1: Sleep quantity (n=25, 22, 48)
-0.42
(1.3204)
-0.114
(0.8442)
0.198
(1.0249)
Change at Week 1: Optimal sleep (n=26, 22, 50)
0
(0.4899)
0
(0.5345)
-0.14
(0.5349)
Change at Week 1: Sleep Adequacy (n=25, 22, 49)
-1.8
(15.6045)
-6.818
(27.1041)
-0.408
(21.5985)
Change at Week 1: Somnolence (n=25, 22, 49)
-8.267
(21.7545)
-1.818
(13.8674)
-1.769
(16.4444)
Change at Week 1: SPI I (n=25, 22, 49)
35.2
(81.7068)
25
(105.9088)
-21.224
(85.9901)
Change at Week 1: SPI II (n=26, 22, 50)
7.65
(16.0588)
2.936
(17.1929)
-3.875
(14.2472)
Change at Week 2: Sleep disturbance (n=23, 20, 46)
3.904
(18.0117)
0.438
(27.3712)
-11.984
(15.9101)
Change at Week 2: Snoring (n=22, 19, 45)
-12.273
(17.1636)
-17.368
(14.4692)
-12
(14.554)
Change at Week 2: ASoB (n=23, 20, 46)
0.435
(11.0693)
1.5
(14.2441)
-3.478
(11.1987)
Change at Week 2: Sleep quantity (22, 20, 46)
-0.182
(0.958)
0.025
(0.8955)
0.152
(0.9121)
Change at Week 2: Optimal sleep (n=23, 20, 49)
0.065
(0.4074)
-0.1
(0.4472)
-0.122
(0.4845)
Change at Week 2: Sleep Adequacy (n=22, 20, 45)
7.955
(17.6378)
4.5
(23.6699)
6.111
(24.0711)
Change at Week 2: Somnolence (n=22, 20, 45)
-6.061
(16.9542)
-4.333
(14.3515)
-5.333
(14.6059)
Change at Week 2: SPI I (n=22, 20, 45)
-15.455
(71.6956)
1.5
(103.937)
-45.333
(74.8817)
Change at Week 2: SPI II (n=23, 20, 46)
-0.242
(11.7718)
-1.438
(17.3576)
-8.155
(12.6707)
Change at Week 3: Sleep disturbance (n=25, 21, 47)
-0.875
(18.0287)
6.31
(24.7652)
-12.114
(15.1541)
Change at Week 3: Snoring (n=24, 20, 44)
-7.917
(14.44)
-5.5
(20.1246)
-6.364
(13.6554)
Change at Week 3: ASoB (n=25, 21, 47)
-0.4
(12.0692)
6.19
(19.3588)
1.702
(22.4886)
Change at Week 3: Sleep quantity (n=24, 20, 47)
-0.354
(0.8658)
-0.025
(0.9244)
0.16
(1.0638)
Change at Week 3: Optimal sleep (n=25, 21, 50)
0.08
(0.4491)
0
(0.5477)
-0.12
(0.5206)
Change at Week 3: Sleep Adequacy (n=24, 21, 45)
3.958
(19.1663)
-2.381
(25.5254)
3
(17.235)
Change at Week 3: Somnolence (n=24, 21, 45)
-8.889
(19.5274)
0.635
(13.3591)
-1.704
(12.4848)
Change at Week 3: SPI I (n=24, 21, 45)
-20.833
(71.7433)
31.905
(108.3337)
-25.778
(71.6205)
Change at Week 3: SPI II (n=25, 21, 47)
-2.511
(14.1763)
4.636
(18.1315)
-6.238
(12.4191)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Sleep disturbance): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <0.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 25.0781
Confidence Interval (2-Sided) 80%
18.565 to 31.591
Parameter Dispersion Type: Standard Error of the Mean
Value: 5.0238
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Sleep disturbance): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0049
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 15.6481
Confidence Interval (2-Sided) 80%
8.7110 to 22.585
Parameter Dispersion Type: Standard Error of the Mean
Value: 5.3551
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Snoring): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3078
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -3.6270
Confidence Interval (2-Sided) 80%
-8.196 to 0.94237
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.5248
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Snoring): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0644
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 7.1594
Confidence Interval (2-Sided) 80%
2.2344 to 12.084
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.8022
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (ASoB): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1517
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 4.5601
Confidence Interval (2-Sided) 80%
0.49198 to 8.6281
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.1318
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (ASoB): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8252
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.7384
Confidence Interval (2-Sided) 80%
-5.056 to 3.5789
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.3281
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Sleep quantity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0063
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.6228
Confidence Interval (2-Sided) 80%
-0.9082 to -0.3375
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.2203
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Sleep quantity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3217
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.2301
Confidence Interval (2-Sided) 80%
-0.5283 to 0.06822
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.2303
Estimation Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Optimal sleep): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2307
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1291
Confidence Interval (2-Sided) 80%
-0.0091 to 0.26716
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1065
Estimation Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Optimal sleep): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4585
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.08114
Confidence Interval (2-Sided) 80%
-0.0598 to 0.22209
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1087
Estimation Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Sleep adequacy): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3477
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -3.6629
Confidence Interval (2-Sided) 80%
-8.681 to 1.3549
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.8642
Estimation Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Sleep adequacy): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1565
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -5.8688
Confidence Interval (2-Sided) 80%
-11.17 to -0.5693
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.0842
Estimation Comments
Statistical Analysis 13
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (Somnolence): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1088
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -6.4319
Confidence Interval (2-Sided) 80%
-11.55 to -1.311
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.9541
Estimation Comments
Statistical Analysis 14
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (Somnolence): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8627
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.7208
Confidence Interval (2-Sided) 80%
-4.654 to 6.0952
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.1517
Estimation Comments
Statistical Analysis 15
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (SPI I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0024
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 56.6310
Confidence Interval (2-Sided) 80%
33.532 to 79.730
Parameter Dispersion Type: Standard Error of the Mean
Value: 17.8056
Estimation Comments
Statistical Analysis 16
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (SPI I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0112
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 49.1543
Confidence Interval (2-Sided) 80%
24.831 to 73.478
Parameter Dispersion Type: Standard Error of the Mean
Value: 18.7622
Estimation Comments
Statistical Analysis 17
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1 (SPI II): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0008
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 10.9197
Confidence Interval (2-Sided) 80%
6.9105 to 14.929
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.0912
Estimation Comments
Statistical Analysis 18
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1 (SPI II): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0129
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 8.4691
Confidence Interval (2-Sided) 80%
4.1876 to 12.751
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.3037
Estimation Comments
Statistical Analysis 19
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Sleep disturbance): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0020
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 14.1078
Confidence Interval (2-Sided) 80%
8.4492 to 19.766
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.3667
Estimation Comments
Statistical Analysis 20
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Sleep disturbance): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0026
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 14.3485
Confidence Interval (2-Sided) 80%
8.4275 to 20.270
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.5692
Estimation Comments
Statistical Analysis 21
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Snoring): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9305
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.2989
Confidence Interval (2-Sided) 80%
-4.729 to 4.1309
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.4103
Estimation Comments
Statistical Analysis 22
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Snoring): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1178
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -5.7062
Confidence Interval (2-Sided) 80%
-10.36 to -1.050
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.5839
Estimation Comments
Statistical Analysis 23
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (ASoB): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3339
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.4586
Confidence Interval (2-Sided) 80%
-0.8124 to 5.7295
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.5231
Estimation Comments
Statistical Analysis 24
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (ASoB): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0698
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 4.8590
Confidence Interval (2-Sided) 80%
1.4493 to 8.2686
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.6300
Estimation Comments
Statistical Analysis 25
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Sleep quantity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0762
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.3364
Confidence Interval (2-Sided) 80%
-0.5777 to -0.0950
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1859
Estimation Comments
Statistical Analysis 26
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Sleep quantity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4096
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.1591
Confidence Interval (2-Sided) 80%
-0.4075 to 0.08935
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1913
Estimation Comments
Statistical Analysis 27
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Optimal sleep): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0455
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.2115
Confidence Interval (2-Sided) 80%
0.07751 to 0.34550
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1033
Estimation Comments
Statistical Analysis 28
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Optimal sleep): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4585
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.08114
Confidence Interval (2-Sided) 80%
-0.0598 to 0.22209
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1087
Estimation Comments
Statistical Analysis 29
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Sleep adequacy): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9078
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.5433
Confidence Interval (2-Sided) 80%
-5.513 to 6.5995
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.6662
Estimation Comments
Statistical Analysis 30
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Sleep adequacy): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6502
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -2.1848
Confidence Interval (2-Sided) 80%
-8.403 to 4.0338
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.7892
Estimation Comments
Statistical Analysis 31
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (Somnolence): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.8090
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.9029
Confidence Interval (2-Sided) 80%
-5.716 to 3.9101
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.7234
Estimation Comments
Statistical Analysis 32
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (Somnolence): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5282
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.4351
Confidence Interval (2-Sided) 80%
-2.532 to 7.4025
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.8429
Estimation Comments
Statistical Analysis 33
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (SPI I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1848
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 25.3231
Confidence Interval (2-Sided) 80%
0.86393 to 49.782
Parameter Dispersion Type: Standard Error of the Mean
Value: 18.8604
Estimation Comments
Statistical Analysis 34
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (SPI I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0124
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 50.4054
Confidence Interval (2-Sided) 80%
25.134 to 75.677
Parameter Dispersion Type: Standard Error of the Mean
Value: 19.4810
Estimation Comments
Statistical Analysis 35
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2 (SPI II): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0267
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 6.8658
Confidence Interval (2-Sided) 80%
2.9504 to 10.781
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.0205
Estimation Comments
Statistical Analysis 36
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2 (SPI II): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0134
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 8.0855
Confidence Interval (2-Sided) 80%
3.9787 to 12.192
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.1677
Estimation Comments
Statistical Analysis 37
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Sleep disturbance): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0152
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 9.5242
Confidence Interval (2-Sided) 80%
4.5949 to 14.453
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.7993
Estimation Comments
Statistical Analysis 38
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Sleep disturbance): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 19.9806
Confidence Interval (2-Sided) 80%
14.602 to 25.359
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.1501
Estimation Comments
Statistical Analysis 39
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Snoring): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3516
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -2.7667
Confidence Interval (2-Sided) 80%
-6.590 to 1.0562
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.9402
Estimation Comments
Statistical Analysis 40
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Snoring): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3448
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.0838
Confidence Interval (2-Sided) 80%
-1.116 to 7.2838
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.2323
Estimation Comments
Statistical Analysis 41
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (ASoB): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5583
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -2.5882
Confidence Interval (2-Sided) 80%
-8.294 to 3.1175
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.3902
Estimation Comments
Statistical Analysis 42
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (ASoB): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1141
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 7.6547
Confidence Interval (2-Sided) 80%
1.4717 to 13.838
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.7652
Estimation Comments
Statistical Analysis 43
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Sleep quantity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0034
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.5882
Confidence Interval (2-Sided) 80%
-0.8356 to -0.3408
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1903
Estimation Comments
Statistical Analysis 44
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Sleep quantity): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.4083
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.1722
Confidence Interval (2-Sided) 80%
-0.4403 to 0.09599
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.2064
Estimation Comments
Statistical Analysis 45
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Optimal sleep): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0120
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.2744
Confidence Interval (2-Sided) 80%
0.13746 to 0.41127
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1055
Estimation Comments
Statistical Analysis 46
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Optimal sleep): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3750
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1016
Confidence Interval (2-Sided) 80%
-0.0457 to 0.24881
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1136
Estimation Comments
Statistical Analysis 47
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Sleep adequacy): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.9119
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.4367
Confidence Interval (2-Sided) 80%
-4.665 to 5.5387
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.9301
Estimation Comments
Statistical Analysis 48
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Sleep adequacy): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1367
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -6.3429
Confidence Interval (2-Sided) 80%
-11.79 to -0.8960
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.1977
Estimation Comments
Statistical Analysis 49
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (Somnolence): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0595
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -6.0062
Confidence Interval (2-Sided) 80%
-10.05 to -1.964
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.1094
Estimation Comments
Statistical Analysis 50
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (Somnolence): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1356
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 5.0362
Confidence Interval (2-Sided) 80%
0.72505 to 9.3473
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.3182
Estimation Comments
Statistical Analysis 51
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (SPI I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.7528
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 5.1569
Confidence Interval (2-Sided) 80%
-15.99 to 26.303
Parameter Dispersion Type: Standard Error of the Mean
Value: 16.2884
Estimation Comments
Statistical Analysis 52
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (SPI I): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0003
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 67.7022
Confidence Interval (2-Sided) 80%
45.114 to 90.290
Parameter Dispersion Type: Standard Error of the Mean
Value: 17.4066
Estimation Comments
Statistical Analysis 53
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3 (SPI II): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2837
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 2.8582
Confidence Interval (2-Sided) 80%
-0.5670 to 6.2835
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.6389
Estimation Comments
Statistical Analysis 54
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3 (SPI II): Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <0.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 12.9251
Confidence Interval (2-Sided) 80%
9.1761 to 16.674
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.8913
Estimation Comments
15. Other Pre-specified Outcome
Title Change From Baseline in Subjective Sleep Questionnaire (SSQ) Latency Subscale Scores at Week 1, 2 and 3
Description SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), total awake after sleep onset (WASO [1 item]), quality of sleep (1 item). Latency subscale score ranges from 0-840 minutes. Lower value indicates better sleep.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
30.333
(35.7464)
31.364
(29.7582)
29.067
(31.8087)
Change at Week 1 (n=25, 22, 43)
24.6
(89.6858)
-3.409
(46.2302)
0.837
(60.9442)
Change at Week 2 (n=21, 19, 43)
-3.024
(23.4763)
-12.632
(31.1858)
-11.105
(23.2396)
Change at Week 3 (n=18, 11, 36)
-3.222
(36.2086)
4.091
(66.954)
-11.958
(30.2856)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <0.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 26.8615
Confidence Interval (2-Sided) 80%
21.777 to 31.946
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.9167
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.3034
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 4.3455
Confidence Interval (2-Sided) 80%
-1.080 to 9.7713
Parameter Dispersion Type: Standard Error of the Mean
Value: 4.1817
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0223
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 6.9558
Confidence Interval (2-Sided) 80%
3.1320 to 10.780
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.9408
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2284
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 3.7518
Confidence Interval (2-Sided) 80%
-0.2442 to 7.7479
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.0743
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0201
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 8.5752
Confidence Interval (2-Sided) 80%
3.9265 to 13.224
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.5848
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1931
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 5.0229
Confidence Interval (2-Sided) 80%
0.07753 to 9.9683
Parameter Dispersion Type: Standard Error of the Mean
Value: 3.8154
Estimation Comments
16. Other Pre-specified Outcome
Title Change From Baseline in Subjective Sleep Questionnaire (SSQ) Hours of Sleep Subscale Scores at Week 1, 2 and 3
Description SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Hours of sleep subscale score ranges from 0-16 hours. Higher value indicates better sleep.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
6.05
(1.0963)
6.48
(1.2806)
6.364
(1.2534)
Change at Week 1 (n=25, 22, 43)
0.147
(1.4865)
0.414
(2.0816)
0.763
(1.5914)
Change at Week 2 (21, 19, 43)
0.414
(1.2911)
0.319
(1.7)
0.865
(1.4959)
Change at Week 3 (n=18, 11, 36)
-0.148
(1.7562)
-0.17
(2.0091)
0.717
(1.2305)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0003
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.6766
Confidence Interval (2-Sided) 80%
-0.9046 to -0.4487
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1759
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1055
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.3075
Confidence Interval (2-Sided) 80%
-0.5499 to -0.0650
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1871
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0119
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.4684
Confidence Interval (2-Sided) 80%
-0.7012 to -0.2356
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1791
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.5016
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.1263
Confidence Interval (2-Sided) 80%
-0.3687 to 0.11608
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1866
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0531
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.3451
Confidence Interval (2-Sided) 80%
-0.5711 to -0.1191
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1738
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0306
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -0.4137
Confidence Interval (2-Sided) 80%
-0.6549 to -0.1725
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1856
Estimation Comments
17. Other Pre-specified Outcome
Title Change From Baseline in Subjective Sleep Questionnaire (SSQ) Number of Awakenings Subscale Scores at Week 1, 2 and 3
Description SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Number of awakenings subscale score ranges from 0 to 30. Lower value indicates better sleep.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
1.37
(1.4317)
1.182
(1.0065)
1.298
(1.2258)
Change at Week 1 (n=25, 22, 43)
0.12
(1.6788)
0.5
(1.7252)
-0.209
(1.4402)
Change at Week 2 (n=21, 19, 43)
-0.333
(1.977)
0.158
(1.2589)
-0.419
(1.2293)
Change at Week 3 (n=18, 11, 36)
0.028
(2.0398)
0.045
(1.4222)
-0.361
(1.2627)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <0.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.7671
Confidence Interval (2-Sided) 80%
0.54260 to 0.99157
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1731
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0059
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.5285
Confidence Interval (2-Sided) 80%
0.28911 to 0.76798
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1847
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2921
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1526
Confidence Interval (2-Sided) 80%
-0.0336 to 0.33878
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1431
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1929
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1980
Confidence Interval (2-Sided) 80%
0.00319 to 0.39272
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1498
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0332
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.3433
Confidence Interval (2-Sided) 80%
0.13988 to 0.54663
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1565
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0162
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.4184
Confidence Interval (2-Sided) 80%
0.20006 to 0.63674
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1681
Estimation Comments
18. Other Pre-specified Outcome
Title Change From Baseline in Subjective Sleep Questionnaire (SSQ) Total Awake After Sleep Onset (WASO) Subscale Scores at Week 1, 2 and 3
Description SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Total WASO subscale score ranges from 0 to 24 hours. Lower value indicates better sleep.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
0.432
(0.6295)
0.578
(0.8214)
0.529
(0.7442)
Change at Week 1 (25, 22, 43)
0.109
(0.5542)
0.013
(1.2797)
-0.286
(0.7444)
Change at Week 2 (n=21, 19, 43)
-0.133
(0.7064)
-0.167
(0.8035)
-0.228
(0.8409)
Change at Week 3 (n=18, 11, 36)
0.091
(0.6291)
0.329
(1.3329)
-0.313
(0.6863)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <0.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.5103
Confidence Interval (2-Sided) 80%
0.36707 to 0.65345
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1103
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0031
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.3643
Confidence Interval (2-Sided) 80%
0.21189 to 0.51664
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1174
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1553
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1362
Confidence Interval (2-Sided) 80%
0.01366 to 0.25882
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.09408
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.2809
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.1070
Confidence Interval (2-Sided) 80%
-0.0205 to 0.23458
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.09797
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0603
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.2195
Confidence Interval (2-Sided) 80%
0.07101 to 0.36803
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1146
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0008
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 0.4278
Confidence Interval (2-Sided) 80%
0.27079 to 0.58479
Parameter Dispersion Type: Standard Error of the Mean
Value: 0.1212
Estimation Comments
19. Other Pre-specified Outcome
Title Change From Baseline in Subjective Sleep Questionnaire (SSQ) Quality of Sleep Subscale Scores at Week 1, 2 and 3
Description SSQ is a 5-item self-report scale that was designed to evaluate the amount and quality of sleep and is comprised of 5 items yielding 5 subscale scores: latency (1 item), hours of sleep (1 item), number of awakenings (1 item), WASO (1 item), quality of sleep (1 item). Quality of sleep subscale score ranges from 0-100. Higher score indicates better quality of sleep.
Time Frame Baseline, Week 1, 2, 3

Outcome Measure Data

Analysis Population Description
PP analysis set: all participants included in FAS and had no major protocol violation affecting primary efficacy variable. Here 'n' signifies those participants who were evaluable for this measure at specified time points for each arm, respectively.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 27 22 52
Baseline (n=27, 22, 52)
57.093
(19.7582)
55
(23.4663)
56.202
(20.9533)
Change at Week 1 (n=25, 22, 42)
-4.06
(21.0616)
0.5
(25.6715)
8.393
(25.5447)
Change at Week 2 (n=21, 19, 43)
8.286
(22.3375)
11.105
(22.6124)
9.43
(20.5434)
Change at Week 3 (n=18, 11, 36)
7.222
(21.7764)
0.182
(44.302)
10.389
(22.8602)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value <0.0001
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -13.3264
Confidence Interval (2-Sided) 80%
-16.83 to -9.828
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.6944
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 1: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0068
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -8.1260
Confidence Interval (2-Sided) 80%
-11.87 to -4.382
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.8841
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.1346
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -3.5341
Confidence Interval (2-Sided) 80%
-6.551 to -0.5175
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.3172
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 2: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.6552
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value 1.0911
Confidence Interval (2-Sided) 80%
-2.067 to 4.2494
Parameter Dispersion Type: Standard Error of the Mean
Value: 2.4268
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Low Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0765
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -3.2001
Confidence Interval (2-Sided) 80%
-5.494 to -0.9063
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.7614
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection PF-03654746 (Flexible Dose), Placebo
Comments Week 3: Mixed effects linear model was used with treatment, period and investigator as fixed effects; baseline as covariate and participants as random effect.
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0473
Comments
Method Mixed Models Analysis
Comments
Method of Estimation Estimation Parameter LS Mean Difference
Estimated Value -3.8781
Confidence Interval (2-Sided) 80%
-6.349 to -1.407
Parameter Dispersion Type: Standard Error of the Mean
Value: 1.8976
Estimation Comments
20. Other Pre-specified Outcome
Title Number of Participants With Clinically Significant Laboratory Test Abnormalities
Description Laboratory parameters included hematology (hemoglobin, hematocrit, red blood cell count, platelets, leukocytes, total neutrophils, eosinophils, basophils, lymphocytes, monocytes); liver function (total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, albumin, total protein); renal function (creatinine, blood urea nitrogen, uric acid, sodium, potassium, chloride, bicarbonate, calcium); urinalysis (protein, blood), and clinical chemistry (glucose).
Time Frame Baseline up to 1 week after last study dose

Outcome Measure Data

Analysis Population Description
Safety analysis set consisted of all participants who took at least 1 dose of study medication. Here 'N' (number of participants analyzed) signifies those participants who were evaluable for this measure.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 28 25 55
Number [participants]
5
31.3%
9
52.9%
10
62.5%
21. Other Pre-specified Outcome
Title Number of Participants With Electrocardiogram (ECG) Findings
Description Criteria for potential clinical concern in ECG parameters: maximum PR interval of greater than or equal to (>=) 300 milliseconds (msec), maximum QRS interval >=200 msec, maximum QTc interval of 450 to <480 msec, 480 to <500 msec and >=500 msec.
Time Frame Baseline up to End of Treatment (Week 3 of period 2)

Outcome Measure Data

Analysis Population Description
Safety analysis set consisted of all participants who took at least 1 dose of study medication. Here 'N' (number of participants analyzed) signifies those participants who were evaluable for this measure.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 28 25 57
Number [participants]
1
6.3%
0
0%
1
6.3%
22. Other Pre-specified Outcome
Title Number of Participants With Clinically Significant Vital Sign Abnormalities
Description Criteria for potential clinical concern in vital signs: systolic blood pressure (BP) less than (<) 90 millimeters of mercury (mmHg), diastolic BP <50 mmHg, supine and sitting heart rate <40 beats per minute (bpm) or >120 bpm, standing and erect heart rate <40 bpm or >140 bpm. Maximum increase from baseline in systolic BP >=30 mmHg, maximum increase from baseline in diastolic BP >=20 mmHg.
Time Frame Baseline up to 1 week after last study dose

Outcome Measure Data

Analysis Population Description
Safety analysis set consisted of all participants who took at least 1 dose of study medication. Here 'N' (number of participants analyzed) signifies those participants who were evaluable for this measure.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 28 25 55
Number [participants]
0
0%
0
0%
1
6.3%
23. Other Pre-specified Outcome
Title Number of Participants With Change From Baseline in Physical Examination and Neurological Examination
Description Analysis include general physical examination and assessment of head, ears, eyes, ocular fundi, nose, mouth, throat, neck, thyroid, lungs, heart, breasts, abdomen and musculoskeletal system.
Time Frame Baseline up to 1 week after last study dose (1 week after end of Period 2)

Outcome Measure Data

Analysis Population Description
Safety analysis set consisted of all participants who took at least 1 dose of study medication.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 28 25 58
Number [participants]
0
0%
0
0%
0
0%
24. Other Pre-specified Outcome
Title Treatment Duration
Description Treatment duration was defined as the total number of dosing days from first to last day of study drug administration in each period.
Time Frame Day 1 up to Day 21

Outcome Measure Data

Analysis Population Description
Safety analysis set consisted of all participants who took at least 1 dose of study medication.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
Measure Participants 28 25 58
Mean (Full Range) [days]
21
21
21

Adverse Events

Time Frame
Adverse Event Reporting Description Safety analysis population included all participants who received at least 1 dose of study medication.
Arm/Group Title PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Arm/Group Description PF-03654746 capsule 1 mg orally once daily for 3 weeks in first or second DB intervention period. PF-03654746 capsule 0.5 mg orally once daily in the first week, PF-03654746 capsule 1 mg orally once daily in the second week and PF-03654746 2 mg orally once daily in the third week, depending upon the investigator's discretion and tolerability, in first or second DB intervention period. Placebo matched to PF-03654746 orally once daily for 3 weeks in first or second DB intervention period.
All Cause Mortality
PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN)
Serious Adverse Events
PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/28 (0%) 0/25 (0%) 0/58 (0%)
Other (Not Including Serious) Adverse Events
PF-03654746 (Low Dose) PF-03654746 (Flexible Dose) Placebo
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 21/28 (75%) 19/25 (76%) 33/58 (56.9%)
Cardiac disorders
Palpitations 1/28 (3.6%) 1/25 (4%) 0/58 (0%)
Ear and labyrinth disorders
Hyperacusis 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Eye disorders
Conjunctivitis 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Lacrimation increased 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Vision blurred 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Gastrointestinal disorders
Abdominal discomfort 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Constipation 2/28 (7.1%) 0/25 (0%) 2/58 (3.4%)
Diarrhoea 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Dry mouth 1/28 (3.6%) 2/25 (8%) 2/58 (3.4%)
Flatulence 1/28 (3.6%) 0/25 (0%) 1/58 (1.7%)
Nausea 2/28 (7.1%) 2/25 (8%) 2/58 (3.4%)
General disorders
Fatigue 1/28 (3.6%) 1/25 (4%) 10/58 (17.2%)
Feeling abnormal 0/28 (0%) 0/25 (0%) 2/58 (3.4%)
Feeling jittery 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Irritability 2/28 (7.1%) 2/25 (8%) 3/58 (5.2%)
Pyrexia 0/28 (0%) 1/25 (4%) 0/58 (0%)
Immune system disorders
Hypersensitivity 0/28 (0%) 1/25 (4%) 0/58 (0%)
Infections and infestations
Bronchitis 0/28 (0%) 1/25 (4%) 0/58 (0%)
Nasopharyngitis 0/28 (0%) 1/25 (4%) 0/58 (0%)
Upper respiratory tract infection 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Viral infection 0/28 (0%) 1/25 (4%) 0/58 (0%)
Injury, poisoning and procedural complications
Arthropod sting 0/28 (0%) 1/25 (4%) 0/58 (0%)
Sunburn 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Investigations
Alanine aminotransferase increased 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Aspartate aminotransferase increased 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Blood albumin increased 0/28 (0%) 1/25 (4%) 0/58 (0%)
Blood amylase increased 0/28 (0%) 1/25 (4%) 0/58 (0%)
Blood creatine phosphokinase MB increased 0/28 (0%) 1/25 (4%) 0/58 (0%)
Blood creatine phosphokinase increased 0/28 (0%) 1/25 (4%) 0/58 (0%)
Blood potassium increased 0/28 (0%) 1/25 (4%) 0/58 (0%)
Liver function test abnormal 0/28 (0%) 1/25 (4%) 2/58 (3.4%)
Metabolism and nutrition disorders
Decreased appetite 2/28 (7.1%) 1/25 (4%) 0/58 (0%)
Musculoskeletal and connective tissue disorders
Arthralgia 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Muscle spasms 1/28 (3.6%) 0/25 (0%) 1/58 (1.7%)
Myalgia 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Neck pain 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Tendon pain 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Nervous system disorders
Coordination abnormal 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Disturbance in attention 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Dizziness 1/28 (3.6%) 0/25 (0%) 2/58 (3.4%)
Dysgeusia 0/28 (0%) 1/25 (4%) 0/58 (0%)
Headache 5/28 (17.9%) 2/25 (8%) 10/58 (17.2%)
Memory impairment 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Migraine 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Paraesthesia 1/28 (3.6%) 1/25 (4%) 0/58 (0%)
Poor quality sleep 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Psychomotor hyperactivity 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Somnolence 2/28 (7.1%) 0/25 (0%) 1/58 (1.7%)
Tremor 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Psychiatric disorders
Abnormal dreams 2/28 (7.1%) 3/25 (12%) 3/58 (5.2%)
Anxiety 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Apathy 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Bradyphrenia 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Confusional state 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Depressed mood 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Impatience 0/28 (0%) 1/25 (4%) 0/58 (0%)
Initial insomnia 2/28 (7.1%) 2/25 (8%) 3/58 (5.2%)
Insomnia 9/28 (32.1%) 4/25 (16%) 4/58 (6.9%)
Libido decreased 1/28 (3.6%) 0/25 (0%) 1/58 (1.7%)
Middle insomnia 0/28 (0%) 1/25 (4%) 1/58 (1.7%)
Nervousness 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Sleep disorder 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Renal and urinary disorders
Urethral stenosis 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Respiratory, thoracic and mediastinal disorders
Cough 0/28 (0%) 1/25 (4%) 0/58 (0%)
Epistaxis 0/28 (0%) 1/25 (4%) 0/58 (0%)
Nasal congestion 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Rhinorrhoea 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Skin and subcutaneous tissue disorders
Dermatitis contact 0/28 (0%) 0/25 (0%) 1/58 (1.7%)
Night sweats 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Pruritus 0/28 (0%) 1/25 (4%) 0/58 (0%)
Rash 1/28 (3.6%) 1/25 (4%) 0/58 (0%)
Skin lesion 1/28 (3.6%) 0/25 (0%) 0/58 (0%)
Vascular disorders
Hot flush 1/28 (3.6%) 1/25 (4%) 0/58 (0%)

Limitations/Caveats

Instead of time to sustained response, data for percentage of sustained responders in time-sensitive ADHD symptom scale (TASS) total score was reported as per planned analysis.

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.

Results Point of Contact

Name/Title Pfizer ClinicalTrials.gov Call Center
Organization Pfizer, Inc.
Phone 1-800-718-1021
Email ClinicalTrials.gov_Inquiries@pfizer.com
Responsible Party:
Pfizer
ClinicalTrials.gov Identifier:
NCT00531752
Other Study ID Numbers:
  • A8801004
  • 3-WK, CO MTD IN ADULTS W/ADHD
First Posted:
Sep 19, 2007
Last Update Posted:
Feb 19, 2016
Last Verified:
Jan 1, 2016