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CompletedNCT01715805Updated Aug 28, 2019Results posted

Efficacy, Safety and Tolerability of Cariprazine as an Adjunctive Treatment to Antidepressant Therapy (ADT) in Patients With Major Depressive Disorder (MDD)

A Phase 3 interventional study of Cariprazine and Placebo in Major Depressive Disorder, sponsored by Forest Laboratories. Completed at 85 sites in 2 countries. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2019-08-28.

Sponsored by Forest Laboratories · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
1,022
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The objective of this study is to evaluate the efficacy, safety and tolerability of cariprazine as an adjunctive treatment to antidepressant therapy (ADT) in patients with MDD

02

Conditions studied

  • Major Depressive Disorder

Keywords

  • MDD
  • Major Depressive Disorder
03

In context

Depressive Disorder

4,845 studies on the registry are indexed under Depressive Disorder; 514 are open to participants now.

This study's enrollment of 1,022 is above the median of 80 across 3,999 interventional studies indexed under Depressive Disorder.

Browse Depressive Disorder studies →

Lead sponsor

Forest Laboratories is the lead sponsor of 165 studies on the registry; none are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 6 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients who have provided consent prior to any specific procedure
  • Meet the The Diagnostic and Statistical Manual of Mental Disorders, 4th edition, text revision (DSM-IV-TR) criteria for Major Depressive Disorder (MDD)
  • Have a minimum score of 20 on 17-Item Hamilton Depression (HAMD-17) rating scale at Visits 1 and 2

Exclusion criteria

Exclusion Criteria:

  • Patients who do not meet DSM-IV-TR criteria for MDD
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
1,022 participants (actual)

Study arms

  • Other
    Placebo + ADT Lead-in

    Antidepressant therapy (ADT) as prescribed by the investigator plus single-blind placebo for 8 weeks.

    Drug: Placebo · Drug: Antidepressant Therapy (ADT)

  • Placebo comparator
    Placebo + ADT (Double-Blind)

    Following the 8 week ADT plus single blind placebo lead-in period participants were randomized to dose-matched placebo, once per day, oral administration plus ADT for 8 weeks (up to Week 16).

    Drug: Placebo · Drug: Antidepressant Therapy (ADT)

  • Experimental
    Cariprazine + ADT (Double-Blind)

    Following the 8 week ADT plus single blind placebo lead-in period participants were randomized to cariprazine, 1.5 to 4.5 milligrams (mg) per day, oral administration plus ADT for 8 weeks (up to Week 16).

    Drug: Cariprazine · Drug: Antidepressant Therapy (ADT)

  • Other
    Placebo + ADT (Continued Treatment)

    Following the 8 week ADT plus single blind placebo lead-in period, participants who were ADT responders continued treatment with ADT plus placebo for an additional 8 weeks.

    Drug: Placebo · Drug: Antidepressant Therapy (ADT)

Interventions

  • DrugCariprazine

    Cariprazine capsules 1.5 to 4.5 mg/day

  • DrugPlacebo

    Dose-matched placebo capsule once per day

  • DrugAntidepressant Therapy (ADT)

    ADT such as bupropion, citalopram, desvenlafaxine, duloxetine, escitalopram, fluoxetine, sertraline, venlafaxine, paroxetine or vilazodone as prescribed by the physician.

06

What researchers measure

Primary outcomes

  1. Montgomery-Asberg Depression Rating Scale (MADRS) at Baseline in the Double-Blind Period

    The MADRS is a clinician-rated scale to assess depressive symptomatology during the past week. Patients are rated on 10 items to assess feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty concentrating and lack of interest. Each item is scored on a 7-point scale. A score of 0 indicates the absence of symptoms, and a score of 6 indicates symptoms of maximum severity for a total possible score of 0 to 60.

    Time frame: Baseline (Week 8)

  2. Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) in the Double-Blind Period

    The MADRS is a clinician-rated scale to assess depressive symptomatology during the past week. Participants are rated on 10 items to assess feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty concentrating and lack of interest. Each item is scored on a 7-point scale. A score of 0 indicates the absence of symptoms, and a score of 6 indicates symptoms of maximum severity for a total possible score of 0 to 60. A negative change from Baseline indicates improvement. Mixed-effects model for repeated measures (MMRM) with treatment group, study center, visit, and treatment group-by-visit interaction as fixed effects, and the baseline value and baseline by-visit interaction as the covariates was used for analyses.

    Time frame: Baseline (Week 8) to Week 16

Secondary outcomes

  1. Change From Baseline in Sheehan Disability Scale (SDS) Score in the Double-Blind Period

    The Sheehan Disability Scale (SDS) is a 3-item patient-rated questionnaire used to evaluate impairments in the domains of work, social life/leisure, and family life/home responsibility. All items are rated on an 11-point continuum from 0 (no impairment) to 10 (most severe). The 3 individual scores are summed for a total possible score of 0 (unimpaired) to 30 (highly impaired). A negative change from Baseline indicates improvement. MMRM with treatment group, study center, visit, and treatment group-by-visit interaction as fixed effects, and the baseline value and baseline by-visit interaction as the covariates was used for analyses.

    Time frame: Baseline (Week 8) to Week 16

07

Results

Posted Aug 28, 2019

Participant flow

Placebo + ADT Lead-in Period
Participant flow — Placebo + ADT Lead-in Period
MilestonePlacebo + ADT Lead-inPlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)Placebo + ADT (Continued Treatment)
Started1022000
Completed807000
Not completed215000
Withdrew: Adverse event41000
Withdrew: Insufficient therapeutic response6000
Withdrew: Protocol violation74000
Withdrew: Withdrawal of consent49000
Withdrew: Lost to follow-up34000
Withdrew: Site terminated by sponsor1000
Withdrew: Other reason not specified10000
Double-Blind or Continued Treatment
Participant flow — Double-Blind or Continued Treatment
MilestonePlacebo + ADT Lead-inPlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)Placebo + ADT (Continued Treatment)
Started0261269270
Double-blind safety population02582690
Completed0222213222
Not completed0395648
Withdrew: Study or site terminated by sponsor0001
Withdrew: Adverse event03232
Withdrew: Protocol violation0141219
Withdrew: Withdrawal of consent0111113
Withdrew: Lost to follow-up071010
Withdrew: Other reason not specified0103
Withdrew: Did not ingest double-blind treatment0300

Outcome measures

PrimaryMontgomery-Asberg Depression Rating Scale (MADRS) at Baseline in the Double-Blind Period

The MADRS is a clinician-rated scale to assess depressive symptomatology during the past week. Patients are rated on 10 items to assess feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty concentrating and lack of interest. Each item is scored on a 7-point scale. A score of 0 indicates the absence of symptoms, and a score of 6 indicates symptoms of maximum severity for a total possible score of 0 to 60.

Time frame:
Baseline (Week 8)
Reported as:
Mean · score on a scale
Montgomery-Asberg Depression Rating Scale (MADRS) at Baseline in the Double-Blind Period
score on a scalePlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)
Montgomery-Asberg Depression Rating Scale (MADRS) at Baseline in the Double-Blind Period25.2 ± 6.125.4 ± 5.5
PrimaryChange From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) in the Double-Blind Period

The MADRS is a clinician-rated scale to assess depressive symptomatology during the past week. Participants are rated on 10 items to assess feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty concentrating and lack of interest. Each item is scored on a 7-point scale. A score of 0 indicates the absence of symptoms, and a score of 6 indicates symptoms of maximum severity for a total possible score of 0 to 60. A negative change from Baseline indicates improvement. Mixed-effects model for repeated measures (MMRM) with treatment group, study center, visit, and treatment group-by-visit interaction as fixed effects, and the baseline value and baseline by-visit interaction as the covariates was used for analyses.

Time frame:
Baseline (Week 8) to Week 16
Reported as:
Least squares mean · score on a scale
Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) in the Double-Blind Period
score on a scalePlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)
Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) in the Double-Blind Period-7.5 ± 0.5-7.7 ± 0.5
Statistical analysis
  • Placebo + ADT (Double-Blind) vs Cariprazine + ADT (Double-Blind) · Mixed Models Analysis · p = 0.7948 (MMRM with treatment group, study center, visit, and treatment group-by-visit interaction as fixed effects, and the baseline value and baseline by-visit interaction as the covariates was used for analyses.) · Least squares mean difference (lsmd): -0.2 · 95% CI -1.6 to 1.2Cariprazine + ADT - Placebo + ADT
SecondaryChange From Baseline in Sheehan Disability Scale (SDS) Score in the Double-Blind Period

The Sheehan Disability Scale (SDS) is a 3-item patient-rated questionnaire used to evaluate impairments in the domains of work, social life/leisure, and family life/home responsibility. All items are rated on an 11-point continuum from 0 (no impairment) to 10 (most severe). The 3 individual scores are summed for a total possible score of 0 (unimpaired) to 30 (highly impaired). A negative change from Baseline indicates improvement. MMRM with treatment group, study center, visit, and treatment group-by-visit interaction as fixed effects, and the baseline value and baseline by-visit interaction as the covariates was used for analyses.

Time frame:
Baseline (Week 8) to Week 16
Reported as:
Least squares mean · score on a scale
Change From Baseline in Sheehan Disability Scale (SDS) Score in the Double-Blind Period
score on a scalePlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)
Change From Baseline in Sheehan Disability Scale (SDS) Score in the Double-Blind Period-3.1 ± 0.5-3.7 ± 0.5
Statistical analysis
  • Placebo + ADT (Double-Blind) vs Cariprazine + ADT (Double-Blind) · Mixed Models Analysis · p = 0.2784 (MMRM with treatment group, study center, visit, and treatment group-by-visit interaction as fixed effects, and the baseline value and baseline by-visit interaction as the covariates was used for analyses.) · Lsmd: -0.7 · 95% CI -1.9 to 0.5Cariprazine +ADT - Placebo + ADT

Adverse events

Collected over First dose of study drug up to 30 days past last dose of study drug (Up to 12 Weeks for the ADT Lead-In arm) and up to an additional 12 weeks for the Double-Blind and Continued Treatment arms. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo + ADT Lead-in0/1,022 (0%)9/1,022 (0.9%)261/1,022 (25.5%)
Placebo + ADT (Double-Blind)0/258 (0%)3/258 (1.2%)50/258 (19.4%)
Cariprazine + ADT (Double-Blind)0/269 (0%)1/269 (0.4%)101/269 (37.5%)
Placebo + ADT (Continued Treatment)0/270 (0%)1/270 (0.4%)14/270 (5.2%)
Most frequent serious events
Showing 10 of 17
Most frequent serious events
EventPlacebo + ADT Lead-inPlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)Placebo + ADT (Continued Treatment)
MigraineNervous system disorders0/10221/2580/2690/270
SeizureNervous system disorders0/10221/2580/2690/270
Pancreatitis acuteGastrointestinal disorders0/10221/2580/2690/270
CholelithiasisHepatobiliary disorders0/10221/2580/2690/270
Pulmonary embolismRespiratory, thoracic and mediastinal disorders0/10221/2580/2690/270
Suicidal ideationPsychiatric disorders1/10220/2581/2690/270
DepressionPsychiatric disorders0/10220/2581/2690/270
Confusional statePsychiatric disorders0/10220/2580/2691/270
GastroenteritisInfections and infestations1/10220/2580/2690/270
PneumoniaInfections and infestations1/10220/2580/2690/270
Most frequent other events
Most frequent other events
EventPlacebo + ADT Lead-inPlacebo + ADT (Double-Blind)Cariprazine + ADT (Double-Blind)Placebo + ADT (Continued Treatment)
AkathisiaNervous system disorders0/10228/25846/2690/270
NauseaGastrointestinal disorders91/102210/25817/2690/270
HeadacheNervous system disorders91/102215/25822/2690/270
RestlessnessPsychiatric disorders0/10225/25823/2690/270
InsomniaPsychiatric disorders68/102218/25822/2690/270
DiarrhoeaGastrointestinal disorders57/10220/2580/2690/270
SomnolenceNervous system disorders0/10223/25814/2690/270
NasopharyngitisInfections and infestations0/10220/2580/26914/270

Baseline characteristics

Pre-Randomization Safety Population included all patients in the screened population who took at least 1 dose of prospective open-label ADT plus single-blind placebo during the prospective ADT lead-in period of the study.

Age, Continuous
Age, Continuous(years)Placebo + ADT Lead-in
Mean44.1 ± 12.0
Sex: Female, Male
Sex: Female, Male(Participants)Placebo + ADT Lead-in
Female673
Male349
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Placebo + ADT Lead-in
Race — White741
Race — Black or African American250
Race — Asian18
Race — American Indian or Alaska Native8
Race — Native Hawaiian or Other Pacific Islander3
Race — Other2
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Placebo + ADT Lead-in
Ethnicity — Hispanic or Latino234
Ethnicity — Not Hispanic or Latino788
08

Study locations

85 sites
  • Forest Investigative Site 032
    Tucson, Arizona 85710, United States
  • Forest Investigative Site 018
    Little Rock, Arkansas 72211, United States
  • Forest Investigative Site 029
    Little Rock, Arkansas 72211, United States
  • Forest Investigative Site 084
    Cerritos, California 90703, United States
  • Forest Investigative Site 085
    Culver City, California 90230, United States
  • Forest Investigative Site 082
    Garden Grove, California 92845, United States
  • Forest Investigative Site 022
    Newport Beach, California 92660, United States
  • Forest Investigative Site 004
    Oceanside, California 92056, United States
  • Forest Investigative Site 090
    Rancho Mirage, California 92270, United States
  • Forest Investigative Site 078
    Redlands, California 92374, United States
  • Forest Investigative Site 080
    Redlands, California 92374, United States
  • Forest Investigative Site 007
    San Diego, California 92103, United States
  • Forest Investigative Site 054
    San Diego, California 92108, United States
  • Forest Investigative Site 031
    Temecula, California 92591, United States
  • Forest Investigative Site 048
    Denver, Colorado 80239, United States
  • Forest Investigative Site 037
    Coral Springs, Florida 33067, United States
  • Forest Investigative Site 053
    Fort Myers, Florida 33912, United States
  • Forest Investigative Site 023
    Hallandale Beach, Florida 33009, United States
  • Forest Investigative Site 071
    Hialeah, Florida 33012, United States
  • Forest Investigative Site 006
    Leesburg, Florida 34748, United States
  • Forest Investigative Site 026
    Miami, Florida 33145, United States
  • Forest Investigative Site 075
    Miami, Florida 33165, United States
  • Forest Investigative Site 027
    North Miami, Florida 33161, United States
  • Forest Investigative Site 074
    North Miami, Florida 33161, United States
  • Forest Investigative Site 036
    Oakland Park, Florida 33334, United States
  • Forest Investigative Site 051
    Orlando, Florida 32803, United States
  • Forest Investigative Site 044
    South Miami, Florida 33143, United States
  • Forest Investigative Site 008
    Tampa, Florida 33613, United States
  • Forest Investigative Site 019
    Winter Park, Florida 32789, United States
  • Forest Investigative Site 060
    Atlanta, Georgia 30306, United States
  • Forest Investigative Site 024
    Atlanta, Georgia 30331, United States
  • Forest Investigative Site 017
    Marietta, Georgia 30060, United States
  • Forest Investigative Site 047
    Smyrna, Georgia 30080-6315, United States
  • Forest Investigative Site 070
    Chicago, Illinois 60612, United States
  • Forest Investigative Site 013
    Hoffman Estates, Illinois 60169, United States
  • Forest Investigative Site 063
    Libertyville, Illinois 60048, United States
  • Forest Investigative Site 062
    Maywood, Illinois 60153, United States
  • Forest Investigative Site 072
    Naperville, Illinois 60563, United States
  • Forest Investigative Site 010
    Oak Brook, Illinois 60523, United States
  • Forest Investigative Site 068
    Skokie, Illinois 60076, United States
  • Forest Investigative Site 061
    Indianapolis, Indiana 46260, United States
  • Forest Investigative Site 042
    Lafayette, Indiana 47905, United States
  • Forest Investigative Site 065
    Overland Park, Kansas 66211, United States
  • Forest Investigative Site 073
    New Orleans, Louisiana 70115, United States
  • Forest Investigative Site 049
    Gaithersburg, Maryland 20877, United States
  • Forest Investigative Site 077
    Rockville, Maryland 20850, United States
  • Forest Investigative Site 012
    Rockville, Maryland 20852, United States
  • Forest Investigative Site 046
    Boston, Massachusetts 02131, United States
  • Forest Investigative Site 045
    Natick, Massachusetts 01760, United States
  • Forest Investigative Site 086
    Saint Charles, Missouri 63304, United States
  • Forest Investigative Site 014
    Toms River, New Jersey 08755, United States
  • Forest Investigative Site 058
    Albuquerque, New Mexico 87109, United States
  • Forest Investigative Site 076
    Bronx, New York 10467, United States
  • Forest Investigative Site 028
    Brooklyn, New York 11214, United States
  • Forest Investigative Site 016
    New York, New York 10023, United States
  • Forest Investigative Site 083
    New York, New York 10028, United States
  • Forest Investigative Site 025
    Staten Island, New York 10305, United States
  • Forest Investigative Site 050
    Durham, North Carolina 27710, United States
  • Forest Investigative Site 067
    Bismarck, North Dakota 58501, United States
  • Forest Investigative Site 088
    Canton, Ohio 44718, United States
  • Forest Investigative Site 089
    Cincinnati, Ohio 45215, United States
  • Forest Investigative Site 011
    Cincinnati, Ohio 45219, United States
  • Forest Investigative Site 015
    Cincinnati, Ohio 45227, United States
  • Forest Investigative Site 055
    Columbus, Ohio 43210, United States
  • Forest Investigative Site 066
    Mason, Ohio 45040, United States
  • Forest Investigative Site 064
    Middleburg Heights, Ohio 44130, United States
  • Forest Investigative Site 035
    Oklahoma City, Oklahoma 73103, United States
  • Forest Investigative Site 038
    Oklahoma City, Oklahoma 73112, United States
  • Forest Investigative Site 039
    Oklahoma City, Oklahoma 73112, United States
  • Forest Investigative Site 003
    Portland, Oregon 97210, United States
  • Forest Investigative Site 052
    Allentown, Pennsylvania 18104, United States
  • Forest Investigative Site 059
    Lincoln, Rhode Island 02865, United States
  • Forest Investigative Site 001
    Charleston, South Carolina 29425, United States
  • Forest Investigative Site 079
    Austin, Texas 78732, United States
  • Forest Investigative Site 005
    Houston, Texas 77008, United States
  • Forest Investigative Site 087
    The Woodlands, Texas 77381, United States
  • Forest Investigative Site 069
    Wichita Falls, Texas 76309, United States
  • Forest Investigative Site 030
    Orem, Utah 84058, United States
  • Forest Investigative Site 041
    Charlottesville, Virginia 22903, United States
  • Forest Investigative Site 081
    Bellevue, Washington 98007, United States
  • Forest Investigative Site 043
    Seattle, Washington 98104, United States
  • Forest Investigative Site 056
    Milwaukee, Wisconsin 53227, United States
  • Forest Investigative Site 057
    Waukesha, Wisconsin 53188, United States
  • Forest Investigative Site 033
    San Juan, 00918, Puerto Rico
  • Forest Investigative Site 034
    San Juan, 00927, Puerto Rico
09

References and documents

Publications

  • Earley WR, Guo H, Nemeth G, Harsanyi J, Thase ME. Cariprazine Augmentation to Antidepressant Therapy in Major Depressive Disorder: Results of a Randomized, Double-Blind, Placebo-Controlled Trial. Psychopharmacol Bull. 2018 Jun 20;48(4):62-80. PubMed 30618475 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 28, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01715805
Lead sponsor
Forest Laboratories
Collaborators
Gedeon Richter Ltd.
Responsible party
Sponsor
First posted
Oct 29, 2012
Start date
Nov 15, 2012
Primary completion
Jun 24, 2016
Completion
Jun 24, 2016
Results posted
Aug 28, 2019
Last update
Aug 28, 2019

Study contacts

Willie Earley, MD
study director · Allergan

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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