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

Sponsor
Pfizer (Industry)
Overall Status
Completed
CT.gov ID
NCT01371734
Collaborator
(none)
363
42
3
49
8.6
0.2

Study Details

Study Description

Brief Summary

This is a double-blind study evaluating Desvenlafaxine Succinate Sustained-Release (DVS SR) versus 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: Desvenlafaxine Succinate Sustained-Release
  • Drug: Placebo
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
363 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, 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
Study Start Date :
Aug 1, 2011
Actual Primary Completion Date :
Sep 1, 2015
Actual Study Completion Date :
Sep 1, 2015

Arms and Interventions

Arm Intervention/Treatment
Experimental: Experimental Arm 1 - high dose

Drug: Desvenlafaxine Succinate Sustained-Release
Subjects randomized to DVS SR treatment arm will receive 25, 35, or 50 mg/day based on subject weight at the Baseline visit.

Experimental: Experimental Arm 2 - low dose

Drug: Desvenlafaxine Succinate Sustained-Release
Subjects randomized to DVS SR treatment arm will receive 20, 25, or 35 mg/day based on subject weight at the Baseline visit.

Placebo Comparator: Placebo Arm

Drug: Placebo
Subjects randomized to the Placebo treatment arm will receive placebo tablets

Outcome Measures

Primary Outcome Measures

  1. Change From Baseline to Week 8 in the Children's Depression Rating Scale, Revised (CDRS-R) Total Score (n=102, 104, 106) [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. Mean change from baseline was adjusted for the baseline total score, age group and gender.

Secondary Outcome Measures

  1. Change From Baseline to Week 8 in the Clinical Global Impression of Severity (CGI-S) Score (n=102, 105, 106) [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. Mean change from baseline was adjusted for the baseline total score, age group and gender.

  2. Percentage of Participants by Clinical Global Impression Improvement (CGI-I) Score at Weeks 1, 2, 3, 4, 6, and 8 [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 equals (=) 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) or 2 (much 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 behavior 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 Children's Hospital of Alabama Laboratory Birmingham Alabama United States 35233
2 The University of Alabama at Birmingham, Office of Psychiatric Research Birmingham Alabama United States 35294
3 Center for Advanced Improvement Tucson Arizona United States 85719
4 Sun Valley Research Center Imperial California United States 92251
5 MCB Clinical Research Centers Colorado Springs Colorado United States 80910
6 Bliss Basement Pharmacy - Hartford Hospital Hartford Connecticut United States 06102
7 Institute of Living/Hartford Hospital Hartford Connecticut United States 06106
8 Institute of Living Hartford Connecticut United States 06106
9 SJS Clinical Research, Inc. Destin Florida United States 32541
10 Sarkis Clinical Trials Gainesville Florida United States 32607
11 Clinical Neuroscience Solutions Jacksonville Florida United States 32256
12 Medical Research Group of Central Florida Orange City Florida United States 32763
13 Millenia Psychiatry & Research, Inc. Orlando Florida United States 32839
14 Janus Center for Psychiatric Research West Palm Beach Florida United States 33407
15 Northwest Behavioral Research Center Marietta Georgia United States 30060
16 Capstone Clinical Research Libertyville Illinois United States 60048
17 AMR-Baber Research Inc. Naperville Illinois United States 60563
18 Clinco Terre Haute Indiana United States 47802
19 Louisiana State University Health Sciences Center-Psychopharmacology Research Clinic Shreveport Louisiana United States 71103
20 Drug:University Health Shreveport Outpatient Shreveport Louisiana United States 71130
21 Pharmasite Research Inc Baltimore Maryland United States 21208
22 Millennium Psychiatric Associates, LLC Creve Coeur Missouri United States 63141
23 Premier Psychiatric Research Institute, LLC Lincoln Nebraska United States 68526
24 Erie County Medical Center / State University of New York at Buffalo affiliate Buffalo New York United States 14215
25 The Zucker Hillside Hospital, North Shore-Long Island Jewish Health System Glen Oaks New York United States 11004
26 Bioscience Research, LLC. Mount Kisco New York United States 10549
27 Finger Lakes Clinical Research Rochester New York United States 14618
28 Stony Brook University Medical Center, Child And Adolescent Psychiatry Stony Brook New York United States 11794-8790
29 Neuro-Behavioral Clinical Research, Inc. Canton Ohio United States 44718
30 Discovery and Wellness Center for Children/University Hospitals Case Medical Center Cleveland Ohio United States 44106
31 Sooner Clinical Research Oklahoma City Oklahoma United States 73112
32 Research Strategies of Memphis, LLC. Memphis Tennessee United States 38119
33 FutureSearch Trials Austin Texas United States 78731
34 Clinical Trials of Texas, Inc. San Antonio Texas United States 78229
35 Alliance Research Group Richmond Virginia United States 23230
36 Virginia Commonwealth University Richmond Virginia United States 23298
37 Virginia Treatment Center Richmond Virginia United States 23298
38 Carilion Medical Center Roanoke Virginia United States 24014
39 Eastside Therapeutic Resource Kirkland Washington United States 98033
40 Biomedica Research Group Santiago Region Metropolitana Chile 7500710
41 Optima Salud Santiago Region Metropolitana Chile 8320325
42 Hospital Universitario Dr. Jose Eleuterio Gonzalez, Departamento de Psiquiatria Monterrey Nuevo Leon Mexico 064460

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:
NCT01371734
Other Study ID Numbers:
  • B2061032
  • 3151A6-3343
  • 2008-001875-32
First Posted:
Jun 13, 2011
Last Update Posted:
Mar 20, 2017
Last Verified:
Jan 1, 2017

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Placebo DVS SR Low Dose DVS SR High Dose
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study.
Period Title: Overall Study
STARTED 120 122 121
COMPLETED 97 103 104
NOT COMPLETED 23 19 17

Baseline Characteristics

Arm/Group Title Placebo DVS SR Low Dose DVS SR High Dose Total
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. Total of all reporting groups
Overall Participants 120 122 121 363
Age (Years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [Years]
13.2
(2.68)
13.1
(2.80)
12.9
(3.01)
13.0
(2.83)
Sex: Female, Male (Count of Participants)
Female
60
50%
69
56.6%
76
62.8%
205
56.5%
Male
60
50%
53
43.4%
45
37.2%
158
43.5%

Outcome Measures

1. Primary Outcome
Title Change From Baseline to Week 8 in the Children's Depression Rating Scale, Revised (CDRS-R) Total Score (n=102, 104, 106)
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. Mean change from baseline was adjusted for the baseline total score, age group and gender.
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. n is the number of participants with evaluable data.
Arm/Group Title Placebo DVS SR Low Dose DVS SR High Dose
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study.
Measure Participants 119 120 121
Least Squares Mean (Standard Error) [Score on a scale]
-22.85
(1.13)
-23.70
(1.12)
-24.37
(1.12)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Adjusted mean difference = Placebo - DVS SR Low Dose
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.587
Comments
Method Mixed-effects model for repeated measure
Comments Hochberg procedure was used to control for multiplicity
Method of Estimation Estimation Parameter Mean Difference (Net)
Estimated Value 0.85
Confidence Interval (2-Sided) 95%
-2.23 to 3.94
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Adjusted mean difference = Placebo - DVS SR High Dose
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.333
Comments
Method Mixed-effects model for repeated measure
Comments Hochberg procedure was used to control for multiplicity
Method of Estimation Estimation Parameter Mean Difference (Net)
Estimated Value 1.52
Confidence Interval (2-Sided) 95%
-1.56 to 4.61
Parameter Dispersion Type:
Value:
Estimation Comments
2. Secondary Outcome
Title Change From Baseline to Week 8 in the Clinical Global Impression of Severity (CGI-S) Score (n=102, 105, 106)
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. Mean change from baseline was adjusted for the baseline total score, age group and gender.
Time Frame Baseline and Week 8

Outcome Measure Data

Analysis Population Description
ITT Population n is the number of participants with evaluable data.
Arm/Group Title Placebo DVS SR Low Dose DVS SR High Dose
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study.
Measure Participants 119 120 121
Least Squares Mean (Standard Error) [Score on a scale]
-1.49
(0.11)
-1.51
(0.11)
-1.65
(0.11)
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Adjusted mean difference = Placebo - DVS SR Low Dose
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.923
Comments
Method Mixed-effects model for repeated measure
Comments Hochberg procedure was used to control for multiplicity
Method of Estimation Estimation Parameter Mean Difference (Net)
Estimated Value 0.015
Confidence Interval (2-Sided) 95%
-0.29 to 0.32
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Adjusted mean difference = Placebo - DVS SR High Dose
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.302
Comments
Method Mixed-effects model for repeated measure
Comments Hochberg procedure was used to control for multiplicity
Method of Estimation Estimation Parameter Mean Difference (Net)
Estimated Value 0.161
Confidence Interval (2-Sided) 95%
-0.14 to 0.47
Parameter Dispersion Type:
Value:
Estimation Comments
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 equals (=) more affected.
Time Frame Weeks 1, 2, 3, 4, 6, and 8

Outcome Measure Data

Analysis Population Description
ITT Population n is the number of participants with non-missing values
Arm/Group Title Placebo DVS SR Low Dose DVS SR High Dose
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study.
Measure Participants 119 120 121
Week 1, Very Much Improved (n=113, 112,115)
2.7
2.3%
0.9
0.7%
2.6
2.1%
Week 1, Much Improved (n=113, 112, 115)
6.2
5.2%
9.8
8%
12.2
10.1%
Week 1, Minimally Improved (n=113, 112, 115)
38.9
32.4%
37.5
30.7%
33.9
28%
Week 1, No Change (n=113, 112, 115)
49.6
41.3%
51.8
42.5%
46.1
38.1%
Week 1, Minimally Worse (n=113, 112, 115)
2.7
2.3%
0
0%
5.2
4.3%
Week 1, Much Worse (n=113, 112, 115)
0
0%
0
0%
0
0%
Week 1, Very Much Worse (n=113, 112, 115)
0
0%
0
0%
0
0%
Week 2, Very Much Improved (n=114, 115, 109)
4.4
3.7%
6.1
5%
10.1
8.3%
Week 2, Much Improved (n=114, 115, 109)
26.3
21.9%
26.1
21.4%
23.9
19.8%
Week 2, Minimally Improved (n=114, 115, 109)
36.8
30.7%
38.3
31.4%
35.8
29.6%
Week 2, No Change (n=114, 115, 109)
31.6
26.3%
25.2
20.7%
29.4
24.3%
Week 2, Minimally Worse (n=114, 115, 109)
0
0%
4.3
3.5%
0
0%
Week 2, Much Worse (n=114, 115, 109)
0.9
0.8%
0
0%
0.9
0.7%
Week 2, Very Much Worse (n=114, 115, 109)
0
0%
0
0%
0
0%
Week 3, Very Much Improved (n=108, 110, 110)
10.2
8.5%
10.9
8.9%
18.2
15%
Week 3, Much Improved (n=108, 110, 110)
20.4
17%
26.4
21.6%
24.5
20.2%
Week 3, Minimally Improved (n=108, 110, 110)
47.2
39.3%
44.5
36.5%
35.5
29.3%
Week 3, No Change (n=108, 110, 110)
20.4
17%
15.5
12.7%
21.8
18%
Week 3, Minimally Worse (n=108, 110, 110)
1.9
1.6%
1.8
1.5%
0
0%
Week 3, Much Worse (n=108, 110, 110)
0
0%
0
0%
0
0%
Week 3, Very Much Worse (n=108, 110, 110)
0
0%
0.9
0.7%
0
0%
Week 4, Very Much Improved (n=104,108,113)
14.4
12%
17.6
14.4%
15.0
12.4%
Week 4, Much Improved (n=104,108,113)
30.8
25.7%
36.1
29.6%
31.0
25.6%
Week 4, Minimally Improved (n=104,108,113)
35.6
29.7%
30.6
25.1%
35.4
29.3%
Week 4, No Change (n=104,108,113)
19.2
16%
14.8
12.1%
17.7
14.6%
Week 4, Minimally Worse (n=104,108,113)
0
0%
0.9
0.7%
0.9
0.7%
Week 4, Much Worse (n=104,108,113)
0
0%
0
0%
0
0%
Week 4, Very Much Worse (n=104,108,113)
0
0%
0
0%
0
0%
Week 6, Very Much Improved (n=106,104,104)
19.8
16.5%
20.2
16.6%
26.9
22.2%
Week 6, Much Improved (n=106,104,104)
29.2
24.3%
36.5
29.9%
24.0
19.8%
Week 6, Minimally Improved (n=106,104,104)
31.1
25.9%
24.0
19.7%
31.7
26.2%
Week 6, No Change (n=106,104,104)
16.0
13.3%
14.4
11.8%
14.4
11.9%
Week 6, Minimally Worse (n=106,104,104)
2.8
2.3%
2.9
2.4%
1.9
1.6%
Week 6, Much Worse (n=106,104,104)
0
0%
1.9
1.6%
1.0
0.8%
Week 6, Very Much Worse (n=106,104,104)
0.9
0.8%
0
0%
0
0%
Week 8, Very Much Improved (n=102,105,106)
21.6
18%
19.0
15.6%
25.5
21.1%
Week 8, Much Improved (n=102,105,106)
34.3
28.6%
37.1
30.4%
36.8
30.4%
Week 8, Minimally Improved (n=102,105,106)
28.4
23.7%
24.8
20.3%
21.7
17.9%
Week 8, No Change (n=102,105,106)
15.7
13.1%
18.1
14.8%
15.1
12.5%
Week 8, Minimally Worse (n=102,105,106)
0
0%
1.0
0.8%
0.9
0.7%
Week 8, Much Worse (n=102,105,106)
0
0%
0
0%
0
0%
Week 8, Very Much Worse (n=102,105,106)
0
0%
0
0%
0
0%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.729
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.756
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.765
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.475
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.310
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.105
Comments
Method Chi-squared, Corrected
Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.254
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.887
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.475
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.407
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.696
Comments
Method Cochran-Mantel-Haenszel
Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.462
Comments
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) or 2 (much 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 n is the number of participants with non-missing values
Arm/Group Title Placebo DVS SR Low Dose DVS SR High Dose
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study.
Measure Participants 119 120 121
Week 1 (n=113, 112, 115)
8.85
7.4%
10.71
8.8%
14.78
12.2%
Week 2 (n=114, 115, 109)
30.70
25.6%
32.17
26.4%
33.94
28%
Week 3 (n=108, 110, 110)
30.56
25.5%
37.27
30.5%
42.73
35.3%
Week 4 (n=104, 108, 113)
45.19
37.7%
53.70
44%
46.02
38%
Week 6 (n=106, 104, 104)
49.06
40.9%
56.73
46.5%
50.96
42.1%
Week 8 (n=102, 105, 106)
55.88
46.6%
56.19
46.1%
62.26
51.5%
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.633
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.806
Confidence Interval (2-Sided) 95%
0.333 to 1.951
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 1
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.172
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.561
Confidence Interval (2-Sided) 95%
0.245 to 1.285
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.826
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.939
Confidence Interval (2-Sided) 95%
0.536 to 1.644
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 2
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.599
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.860
Confidence Interval (2-Sided) 95%
0.489 to 1.511
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 5
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.248
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.713
Confidence Interval (2-Sided) 95%
0.402 to 1.265
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 6
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 3
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.048
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.564
Confidence Interval (2-Sided) 95%
0.320 to 0.995
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 7
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.210
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.708
Confidence Interval (2-Sided) 95%
0.412 to 1.216
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 8
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 4
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.893
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.964
Confidence Interval (2-Sided) 95%
0.564 to 1.646
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 9
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.228
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.714
Confidence Interval (2-Sided) 95%
0.413 to 1.235
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 10
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 6
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.751
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.916
Confidence Interval (2-Sided) 95%
0.531 to 1.579
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 11
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR Low Dose
Comments Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.925
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.974
Confidence Interval (2-Sided) 95%
0.561 to 1.689
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 12
Statistical Analysis Overview Comparison Group Selection Placebo, DVS SR High Dose
Comments Week 8
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.342
Comments
Method Regression, Logistic
Comments
Method of Estimation Estimation Parameter Odds Ratio (OR)
Estimated Value 0.764
Confidence Interval (2-Sided) 95%
0.438 to 1.331
Parameter Dispersion Type:
Value:
Estimation Comments

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 8 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 DVS SR Low Dose DVS SR High Dose
Arm/Group Description Matched placebo tablets administered once daily for 8 weeks (treatment phase), followed by placebo tablets administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 10 or 20 mg (based on weight at the baseline visit) administered once daily for the first week of treatment (titration phase) then 20, 25 or 35 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study. DVS SR tablets 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) administered once daily for 1 week (taper phase) only for those participants not entering the extension study.
All Cause Mortality
Placebo DVS SR Low Dose DVS SR High Dose
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN)
Serious Adverse Events
Placebo DVS SR Low Dose DVS SR High Dose
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 2/120 (1.7%) 2/122 (1.6%) 1/121 (0.8%)
Infections and infestations
Abscess 0/120 (0%) 0/122 (0%) 1/121 (0.8%)
Appendicitis 0/120 (0%) 0/122 (0%) 1/121 (0.8%)
Psychiatric disorders
Aggression 0/120 (0%) 1/122 (0.8%) 0/121 (0%)
Suicide attempt 1/120 (0.8%) 1/122 (0.8%) 0/121 (0%)
Skin and subcutaneous tissue disorders
Dermatomyositis 1/120 (0.8%) 0/122 (0%) 0/121 (0%)
Other (Not Including Serious) Adverse Events
Placebo DVS SR Low Dose DVS SR High Dose
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 34/120 (28.3%) 46/122 (37.7%) 53/121 (43.8%)
Gastrointestinal disorders
Abdominal pain upper 9/120 (7.5%) 7/122 (5.7%) 11/121 (9.1%)
Nausea 7/120 (5.8%) 12/122 (9.8%) 14/121 (11.6%)
Vomiting 4/120 (3.3%) 1/122 (0.8%) 9/121 (7.4%)
General disorders
Fatigue 2/120 (1.7%) 4/122 (3.3%) 9/121 (7.4%)
Infections and infestations
Nasopharyngitis 2/120 (1.7%) 8/122 (6.6%) 7/121 (5.8%)
Nervous system disorders
Headache 15/120 (12.5%) 22/122 (18%) 25/121 (20.7%)
Psychiatric disorders
Insomnia 1/120 (0.8%) 7/122 (5.7%) 4/121 (3.3%)

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:
NCT01371734
Other Study ID Numbers:
  • B2061032
  • 3151A6-3343
  • 2008-001875-32
First Posted:
Jun 13, 2011
Last Update Posted:
Mar 20, 2017
Last Verified:
Jan 1, 2017