A Study Of DVS SR In Treatment Of Children And Adolescent Outpatients With MDD

Sponsor
Pfizer (Industry)
Overall Status
Completed
CT.gov ID
NCT01372150
Collaborator
(none)
340
43
3
40
7.9
0.2

Study Details

Study Description

Brief Summary

This is a Double-blind Study Evaluating Desvenlafaxine Succinate (DVS SR) Sustained Release vs Placebo in the Treatment of Children and Adolescent Outpatients with Major Depressive Disorder (MDD).

Condition or Disease Intervention/Treatment Phase
  • Drug: desvenlafaxine succinate sustained release
  • Drug: fluoxetine
  • Drug: placebo
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
340 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Triple (Participant, Care Provider, Investigator)
Primary Purpose:
Treatment
Official Title:
A MULTICENTER, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, FLUOXETINE-REFERENCED, PARALLEL-GROUP STUDY TO EVALUATE THE EFFICACY, SAFETY AND TOLERABILITY OF DESVENLAFAXINE SUCCINATE SUSTAINED RELEASE (DVS SR) IN THE TREATMENT OF CHILDREN AND ADOLESCENT OUTPATIENTS WITH MAJOR DEPRESSIVE DISORDER
Actual Study Start Date :
Nov 17, 2011
Actual Primary Completion Date :
Mar 20, 2015
Actual Study Completion Date :
Mar 20, 2015

Arms and Interventions

Arm Intervention/Treatment
Experimental: DVS SR

Drug: desvenlafaxine succinate sustained release
Subjects randomized to DVS SR group receive 25, 35 or 50 mg/day based on subject weight at the Baseline visit. DVS SR provided as oral tablets.

Other: Fluoxetine

Active control for assay sensitivity

Drug: fluoxetine
Subjects randomized to the fluoxetine group receive 20 mg/day. Fluoxetine provided as oral capsules

Experimental: Placebo

Drug: placebo
Subjects randomized to the placebo group receive corresponding placebo tablets and/capsules

Outcome Measures

Primary Outcome Measures

  1. Change From Baseline to Week 8 in the Children's Depression Rating Scale, Revised (CDRS-R) Total Score [Baseline and Week 8]

    Clinician-rated interview-based scale (with both child and parent or guardian) to assess 17 distinct symptom areas to derive an index of depression severity. Discrepancies between informants' responses were resolved by using most impaired rating given by valid informant. Rated on a 7-point scale; range from 1 (no impairment) to 7 (indicates greater impairment). Total score calculated as sum of the 17 items (range 1 to 119); higher score indicates greater impairment. Adjusted mean presented.

Secondary Outcome Measures

  1. Change From Baseline to Week 8 in the Clinical Global Impression of Severity (CGI-S) Score [Baseline and Week 8]

    A 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. Change: score at observation minus score at baseline. Adjusted mean presented.

  2. Percentage of Participants by Clinical Global Impression Improvement (CGI-I) Score at Weeks 1, 2, 3, 4, 6, and 8 [Baseline and Weeks 1, 2, 3, 4, 6, and 8]

    A 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. Higher score = more affected.

  3. Percentage of Participants With a CGI-I Response Defined as a Score of 'Very Much Improved' or 'Much Improved' [Weeks 1, 2, 3, 4, 6, and 8]

    A 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. Higher score = more affected.

Eligibility Criteria

Criteria

Ages Eligible for Study:
7 Years to 17 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Age >=7 and <18 years of age

  • Primary diagnosis of major depressive disorder (MDD)

  • CDRS-R score >40

Exclusion Criteria:
  • History of suicidal behaviour, or requires precaution against suicide

  • Not in generally healthy medical condition

  • History of psychosis or bipolar disorder

  • Seizure disorder

Contacts and Locations

Locations

Site City State Country Postal Code
1 Harmonex Neuroscience Research, Inc. Dothan Alabama United States 36303
2 Dedicated Clinical Research Goodyear Arizona United States 85395
3 University of Arizona Clinical and Translational Science Center (CATS) Tucson Arizona United States 85724
4 University of Arizona College of Medicine Dept of Psychiatry Tucson Arizona United States 85724
5 Arkansas Psychiatric Clinic Clinical Research Trials, P.A. Little Rock Arkansas United States 72211
6 ATP Clinical Research, Inc. 1 Costa Mesa California United States 92626
7 Behavioral Research Specialists, LLC Glendale California United States 91206
8 Synergy Clinical Research Center National City California United States 91950
9 Neuropsychiatric Research Center of Orange County Orange California United States 92868
10 Pacific Clinical Research Medical Group Orange California United States 92868
11 Sharp Mesa Vista Hospital San Diego California United States 92123
12 Elite Clinical Trials, Incorporated Wildomar California United States 92595
13 Children's Hospital Colorado Aurora Colorado United States 80045
14 Amedica Research Institute, Incorporated Hialeah Florida United States 33013
15 Clinical Neuroscience Solutions, Inc. Orlando Florida United States 32801
16 Kolin Research Group Winter Park Florida United States 32789-3747
17 Winter Park Memorial Hospital Winter Park Florida United States 32792
18 Atlanta Center for Medical Research Atlanta Georgia United States 30331
19 Institute for Behavioral Medicine Smyrna Georgia United States 30080
20 Psychiatric Associates Overland Park Kansas United States 66211
21 Lake Charles Clinical Trials, Lake Charles Louisiana United States 70629
22 Neuroscientific Insights Rockville Maryland United States 20852
23 Precise Research Centers Flowood Mississippi United States 39232
24 Midwest Research Group Saint Charles Missouri United States 63304
25 St. Charles Psychiatric Associates - Midwest Research Group Saint Charles Missouri United States 63304
26 Heartland Pharma Developments North Platte Nebraska United States 69101
27 Creighton University Omaha Nebraska United States 68131
28 Center for Psychiatry and Behavioral Medicine, Incorporated Las Vegas Nevada United States 89128
29 Cincinnati Children's Hospital Medical Center (New) Cincinnati Ohio United States 45229
30 Nina F. Wimpie, MD Pediatrics Middleburg Heights Ohio United States 44130
31 North Star Medical Research, LLC Middleburg Heights Ohio United States 44130
32 IPS Research Company Oklahoma City Oklahoma United States 73103
33 Cutting Edge Research Group Oklahoma City Oklahoma United States 73116
34 Paradigm Research Professionals, LLC Oklahoma City Oklahoma United States 73118
35 Summit Research Network (Oregon), Incorporated Portland Oregon United States 97210
36 Clinical Neuroscience Solutions, Inc Memphis Tennessee United States 38119
37 Focus & Balance, LLC San Antonio Texas United States 78229
38 Grayline Clinical Drug Trials Wichita Falls Texas United States 76309
39 Northwest Clinical Research Center Bellevue Washington United States 98007
40 Summit Research Network (Seattle) LLC Seattle Washington United States 98104
41 Rogers Center For Research And Training Milwaukee Wisconsin United States 53227
42 Hospital Aranda de la Parra S.A. de C.V. Leon Guanajuato Mexico 37000
43 CIT - Neuropsique, S.C. Monterrey Nuevo LEON Mexico 64610

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:
NCT01372150
Other Study ID Numbers:
  • B2061014
  • 3151A6-3356
  • 2008-002063-13
First Posted:
Jun 13, 2011
Last Update Posted:
Jan 15, 2019
Last Verified:
Jan 1, 2019
Individual Participant Data (IPD) Sharing Statement:
Yes
Plan to Share IPD:
Yes
Keywords provided by Pfizer
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Placebo Fluoxetine Desvenlafaxine Succinate Sustained Release (DVS SR)
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 (milligram) mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily as appropriate for 1 week (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week.
Period Title: Overall Study
STARTED 112 113 115
Treated 112 112 115
COMPLETED 99 99 99
NOT COMPLETED 13 14 16

Baseline Characteristics

Arm/Group Title Placebo Fluoxetine DVS SR Total
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily for 1 week as appropriate (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week. Total of all reporting groups
Overall Participants 112 112 115 339
Age (Years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [Years]
12.6
(2.89)
12.6
(2.89)
12.9
(3.12)
12.7
(2.96)
Sex: Female, Male (Count of Participants)
Female
64
57.1%
57
50.9%
63
54.8%
184
54.3%
Male
48
42.9%
55
49.1%
52
45.2%
155
45.7%

Outcome Measures

1. Primary Outcome
Title Change From Baseline to Week 8 in the Children's Depression Rating Scale, Revised (CDRS-R) Total Score
Description Clinician-rated interview-based scale (with both child and parent or guardian) to assess 17 distinct symptom areas to derive an index of depression severity. Discrepancies between informants' responses were resolved by using most impaired rating given by valid informant. Rated on a 7-point scale; range from 1 (no impairment) to 7 (indicates greater impairment). Total score calculated as sum of the 17 items (range 1 to 119); higher score indicates greater impairment. Adjusted mean presented.
Time Frame Baseline and Week 8

Outcome Measure Data

Analysis Population Description
Intention-To-Treat (ITT) Population - included all randomized participants who received at least 1 dose of study drug, had a baseline primary efficacy assessment, and had at least one post-baseline primary efficacy assessment.
Arm/Group Title Placebo Fluoxetine DVS SR
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily for 1 week as appropriate (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week.
Measure Participants 99 101 99
Mean (Standard Error) [Score on a Scale]
-23.07
(1.18)
-24.79
(1.17)
-22.61
(1.17)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.226
Comments
Method Mixed-effects model for repeated measure
Comments Mixed-effects model for repeated measures (MMRM)
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 1.71
Confidence Interval (2-Sided) 95%
-1.06 to 4.48
Parameter Dispersion Type:
Value:
Estimation Comments Adjusted mean difference = placebo - fluoxetine
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.739
Comments
Method MMRM
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.47
Confidence Interval (2-Sided) 95%
-3.23 to 2.30
Parameter Dispersion Type:
Value:
Estimation Comments Adjusted mean difference = Placebo - DVS SR
2. Secondary Outcome
Title Change From Baseline to Week 8 in the Clinical Global Impression of Severity (CGI-S) Score
Description A 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. Change: score at observation minus score at baseline. Adjusted mean presented.
Time Frame Baseline and Week 8

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Placebo Fluoxetine DVS SR
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily for 1 week as appropriate (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week.
Measure Participants 99 101 99
Mean (Standard Error) [Score on a Scale]
-1.71
(0.12)
-1.88
(0.12)
-1.70
(0.11)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.224
Comments
Method MMRM
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value 0.18
Confidence Interval (2-Sided) 95%
-0.11 to 0.46
Parameter Dispersion Type:
Value:
Estimation Comments Adjusted mean difference = Placebo - Fluoxetine
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.944
Comments
Method MMRM
Comments
Method of Estimation Estimation Parameter Mean Difference (Final Values)
Estimated Value -0.01
Confidence Interval (2-Sided) 95%
-0.29 to 0.27
Parameter Dispersion Type:
Value:
Estimation Comments Adjusted mean difference = Placebo - DVS SR
3. Secondary Outcome
Title Percentage of Participants by Clinical Global Impression Improvement (CGI-I) Score at Weeks 1, 2, 3, 4, 6, and 8
Description A 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. Higher score = more affected.
Time Frame Baseline and Weeks 1, 2, 3, 4, 6, and 8

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Placebo Fluoxetine DVS SR
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily for 1 week as appropriate (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week.
Measure Participants 105 105 111
Week 1, Very Much Improved (n=102, 101, 111)
1.0
0.9%
3.0
2.7%
2.7
2.3%
Week 1, Much Improved (n=102, 101, 111)
7.8
7%
11.9
10.6%
6.3
5.5%
Week 1, Minimally Improved (n=102, 101, 111)
46.1
41.2%
35.6
31.8%
43.2
37.6%
Week 1, No Change (n=102, 101, 111)
43.1
38.5%
47.5
42.4%
45.9
39.9%
Week 1, Minimally Worse (n=102, 101, 111)
2.0
1.8%
2.0
1.8%
1.8
1.6%
Week 1, Much Worse (n=102, 101, 111)
0
0%
0
0%
0
0%
Week 1, Very Much Worse (n=102, 101, 111)
0
0%
0
0%
0
0%
Week 2, Very Much Improved (n=103, 105, 110)
3.9
3.5%
6.7
6%
3.6
3.1%
Week 2, Much Improved (n=103, 105, 110)
25.2
22.5%
26.7
23.8%
31.8
27.7%
Week 2, Minimally Improved (n=103, 105, 110)
38.8
34.6%
42.9
38.3%
44.5
38.7%
Week 2, No Change (n=103, 105, 110)
30.1
26.9%
22.9
20.4%
19.1
16.6%
Week 2, Minimally Worse (n=103, 105, 110)
1.9
1.7%
1.0
0.9%
0.9
0.8%
Week 2, Much Worse (n=103, 105, 110)
0
0%
0
0%
0
0%
Week 2, Very Much Worse (n=103, 105, 110)
0
0%
0
0%
0
0%
Week 3, Very Much Improved (n=105, 102, 107)
13.3
11.9%
14.7
13.1%
7.5
6.5%
Week 3, Much Improved (n=105, 102, 107)
29.5
26.3%
36.3
32.4%
42.1
36.6%
Week 3, Minimally Improved (n=105, 102, 107)
41.0
36.6%
36.3
32.4%
38.3
33.3%
Week 3, No Change (n=105, 102, 107)
15.2
13.6%
11.8
10.5%
11.2
9.7%
Week 3, Minimally Worse (n=105, 102, 107)
1.0
0.9%
1.0
0.9%
0.9
0.8%
Week 3, Much Worse (n=105, 102, 107)
0
0%
0
0%
0
0%
Week 3, Very Much Worse (n=105, 102, 107)
0
0%
0
0%
0
0%
Week 4, Very Much Improved (n=101, 101, 100)
15.8
14.1%
13.9
12.4%
20.0
17.4%
Week 4, Much Improved (n=101, 101, 100)
38.6
34.5%
47.5
42.4%
44.0
38.3%
Week 4, Minimally Improved (n=101, 101, 100)
29.7
26.5%
27.7
24.7%
25.0
21.7%
Week 4, No Change (n=101, 101, 100)
13.9
12.4%
9.9
8.8%
10.0
8.7%
Week 4, Minimally Worse (n=101, 101, 100)
2.0
1.8%
1.0
0.9%
1.0
0.9%
Week 4, Much Worse (n=101, 101, 100)
0
0%
0
0%
0
0%
Week 4, Very Much Worse (n=101, 101, 100)
0
0%
0
0%
0
0%
Week 6, Very Much Improved (n=100, 100, 102)
18.0
16.1%
26.0
23.2%
23.5
20.4%
Week 6, Much Improved (n=100, 100, 102)
41.0
36.6%
45.0
40.2%
45.1
39.2%
Week 6, Minimally Improved (n=100, 100, 102)
34.0
30.4%
24.0
21.4%
20.6
17.9%
Week 6, No Change (n=100, 100, 102)
6.0
5.4%
5.0
4.5%
9.8
8.5%
Week 6, Minimally Worse (n=100, 100, 102)
0
0%
0
0%
1.0
0.9%
Week 6, Much Worse (n=100, 100, 102)
1.0
0.9%
0
0%
0
0%
Week 6, Very Much Worse (n=100, 100, 102)
0
0%
0
0%
0
0%
Week 8, Very Much Improved (n=99, 101, 99)
27.3
24.4%
30.7
27.4%
23.2
20.2%
Week 8, Much Improved (n=99, 101, 99)
35.4
31.6%
47.5
42.4%
45.5
39.6%
Week 8, Minimally Improved (n=99, 101, 99)
32.3
28.8%
16.8
15%
21.2
18.4%
Week 8, No Change (n=99, 101, 99)
4.0
3.6%
4.0
3.6%
9.1
7.9%
Week 8, Minimally Worse (n=99, 101, 99)
1.0
0.9%
1.0
0.9%
1.0
0.9%
Week 8, Much Worse (n=99, 101, 99)
0
0%
0
0%
0
0%
Week 8, Very Much Worse (n=99, 101, 99)
0
0%
0
0%
0
0%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.924
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.698
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.214
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.113
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.314
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.659
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.577
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.187
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.051
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.266
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.095
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.852
Comments P-value obtained from the Cochran-Mantel-Haenszel test for the alternative hypothesis of "Row Mean Scores Differences".
Method Cochran-Mantel-Haenszel
Comments
4. Secondary Outcome
Title Percentage of Participants With a CGI-I Response Defined as a Score of 'Very Much Improved' or 'Much Improved'
Description A 7-point clinician rated scale ranging from 1 (very much improved) to 7 (very much worse). Improvement is defined as a score of 1 (very much improved), 2 (much improved), or 3 (minimally improved) on the scale. Higher score = more affected.
Time Frame Weeks 1, 2, 3, 4, 6, and 8

Outcome Measure Data

Analysis Population Description
ITT Population
Arm/Group Title Placebo Fluoxetine DVS SR
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily for 1 week as appropriate (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week.
Measure Participants 105 105 111
Week 1 (n=102, 101, 111)
8.82
7.9%
14.85
13.3%
9.01
7.8%
Week 2 (n=103, 105, 110)
29.13
26%
33.33
29.8%
35.45
30.8%
Week 3 (n=105, 102, 107)
42.86
38.3%
50.98
45.5%
49.53
43.1%
Week 4 (n=101, 101, 100)
54.46
48.6%
61.39
54.8%
64.00
55.7%
Week 6 (n=100, 100, 102)
59.00
52.7%
71.00
63.4%
68.63
59.7%
Week 8 (n=99, 101, 99)
62.63
55.9%
78.22
69.8%
68.69
59.7%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.186
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.550
Confidence Interval (2-Sided) 95%
0.226 to 1.335
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.984
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.990
Confidence Interval (2-Sided) 95%
0.382 to 2.567
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.462
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.795
Confidence Interval (2-Sided) 95%
0.431 to 1.465
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.297
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.726
Confidence Interval (2-Sided) 95%
0.399 to 1.324
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Fluoxetine versus Placebo - Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.194
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.688
Confidence Interval (2-Sided) 95%
0.391 to 1.210
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.272
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.732
Confidence Interval (2-Sided) 95%
0.419 to 1.277
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Flouxetine versus Placebo - Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.313
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.748
Confidence Interval (2-Sided) 95%
0.426 to 1.314
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.157
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.663
Confidence Interval (2-Sided) 95%
0.376 to 1.171
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Flouxetine versus Placebo - Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.072
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.579
Confidence Interval (2-Sided) 95%
0.319 to 1.050
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.135
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.640
Confidence Interval (2-Sided) 95%
0.356 to 1.149
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection Placebo, Fluoxetine
Comments Flouxetine versus Placebo - Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.017
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.465
Confidence Interval (2-Sided) 95%
0.249 to 0.871
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR
Comments DVS SR versus Placebo - Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.343
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.751
Confidence Interval (2-Sided) 95%
0.415 to 1.357
Parameter Dispersion Type:
Value:
Estimation Comments Logistic Regression using Response (Y/N) at each time point (excluding Week 9) as a response variable and treatment, age group and country as factors.

Adverse Events

Time Frame Adverse events (AEs) were recorded from informed consent and assent through the first follow up visit (Week 11) for non-serious AEs; the second follow up visit (Week 13) for serious AEs (SAEs); or at Week 9 for participants entering the extension study.
Adverse Event Reporting Description The same event may appear as both an AE and an SAE. However, what is presented are distinct events. An event may be categorized as serious in 1 participant and as non-serious in another participant, or 1 participant may have experienced both a serious and non-serious event during the study.
Arm/Group Title Placebo Fluoxetine DVS SR
Arm/Group Description Placebo tablets and capsules administered once daily for 8 weeks (treatment phase), followed by placebo tablets and capsules administered once daily as appropriate for 1 week (taper/transition phase). Fluoxetine capsules 10 mg administered once daily for the first week of treatment (titration phase) then 20 mg administered once daily for the next 7 weeks of treatment, followed by placebo capsules administered once daily for 1 week as appropriate (taper/transition phase). DVS SR capsules 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 25, 35 or 50 mg (based on weight at the baseline visit) administered once daily for the next 7 weeks of treatment, followed by 10 or 20 mg (based on weight at the baseline visit) (taper phase) or 25 mg (transition phase) administered once daily as appropriate for 1 week.
All Cause Mortality
Placebo Fluoxetine DVS SR
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN)
Serious Adverse Events
Placebo Fluoxetine DVS SR
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/112 (0%) 2/112 (1.8%) 2/115 (1.7%)
Psychiatric disorders
Disinhibition 0/112 (0%) 0/112 (0%) 1/115 (0.9%)
Suicidal ideation 0/112 (0%) 1/112 (0.9%) 1/115 (0.9%)
Suicide attempt 0/112 (0%) 1/112 (0.9%) 0/115 (0%)
Other (Not Including Serious) Adverse Events
Placebo Fluoxetine DVS SR
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 44/112 (39.3%) 39/112 (34.8%) 47/115 (40.9%)
Gastrointestinal disorders
Abdominal pain upper 7/112 (6.3%) 9/112 (8%) 15/115 (13%)
Nausea 10/112 (8.9%) 13/112 (11.6%) 8/115 (7%)
Vomiting 4/112 (3.6%) 7/112 (6.3%) 5/115 (4.3%)
General disorders
Fatigue 2/112 (1.8%) 6/112 (5.4%) 2/115 (1.7%)
Infections and infestations
Influenza 0/112 (0%) 2/112 (1.8%) 6/115 (5.2%)
Nasopharyngitis 8/112 (7.1%) 7/112 (6.3%) 6/115 (5.2%)
Upper respiratory tract infection 6/112 (5.4%) 4/112 (3.6%) 6/115 (5.2%)
Nervous system disorders
Dizziness 6/112 (5.4%) 3/112 (2.7%) 7/115 (6.1%)
Headache 21/112 (18.8%) 16/112 (14.3%) 19/115 (16.5%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

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

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.

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:
NCT01372150
Other Study ID Numbers:
  • B2061014
  • 3151A6-3356
  • 2008-002063-13
First Posted:
Jun 13, 2011
Last Update Posted:
Jan 15, 2019
Last Verified:
Jan 1, 2019