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ClinicalTrials.gov public records Last synced Oct 14, 2026, 7:47 AM EDT

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Showing 73–96 of 109 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Adjunctive Treatment of Major Depressive Disorder (MDD) Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dopaminergic Effects of Adjunctive Aripiprazole on the Brain in Treatment-Resistant Depression

NCT00953745
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Escitalopram, Aripiprazole, Placebo Capsule, Placebo Tablet
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 19, 2018 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Efficacy and Safety of Armodafinil Treatment as Adjunctive Therapy in Adults With Major Depression Associated With Bipolar I Disorder

NCT01072929
View directory record Official record
Conditions
Depression
Interventions
Armodafinil, Placebo
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
433 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
40
States / cities
Birmingham, Alabama • Beverly Hills, California • Garden Grove, California + 36 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2016 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

Brexpiprazole as Adjunctive Therapy With Major Depressive Disorder and an Inadequate Response to Previous Adjunctive Therapy

NCT02012218
View directory record Official record
Conditions
Major Depressive Disorder (MDD)
Interventions
ADT, Brexpiprazole
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
24
States / cities
Garden Grove, California • Temecula, California • Orlando, Florida + 21 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2015 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Study of Flexible or Fixed Dose LY2216684 as Adjunctive Treatment for Participants With Major Depressive Disorder Who Have Had a Partial Response to Selective Serotonin Reuptake Inhibitor (SSRI) Treatment

NCT01187407
View directory record Official record
Conditions
Major Depressive Disorder (MDD)
Interventions
LY2216684, Placebo, SSRI
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
1,480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
28
States / cities
Birmingham, Alabama • Phoenix, Arizona • Chino, California + 25 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2018 · Synced Oct 14, 2026, 7:47 AM EDT
Terminated Phase 1 Interventional

A Study of Seltorexant as Adjunctive Therapy to Antidepressants in Adolescents With Major Depressive Disorder Who Have an Inadequate Response to Selective Serotonin Reuptake Inhibitor (SSRI) and Psychotherapy

NCT04951609
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Seltorexant, Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
12 Years to 17 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
12
States / cities
Phoenix, Arizona • Anaheim, California • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2025 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Efficacy and Safety of Armodafinil Treatment as Adjunctive Therapy in Adults With Major Depression Associated With Bipolar I Disorder

NCT01072630
View directory record Official record
Conditions
Depression
Interventions
Armodafinil, Placebo
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
492 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
46
States / cities
Birmingham, Alabama • Anaheim, California • Cerritos, California + 41 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2016 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 2 Interventional Results available

A Study of JNJ-61393215 in the Treatment of Depression

NCT04080752
View directory record Official record
Conditions
Major Depressive Disorder With Anxious Distress
Interventions
JNJ-61393215, Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 64 Years
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
9
States / cities
Garden Grove, California • Alpharetta, Georgia • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Trial to Evaluate the Efficacy, Safety & Tolerability of Brexpiprazole in the Maintenance Treatment of Adults With Major Depressive Disorder

NCT03538691
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Brexpiprazole, Antidepressant therapy
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 12, 2023 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Study of Flexible-dose Brexpiprazole as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder, the Delphinus Trial

NCT01727726
View directory record Official record
Conditions
Depressive Disorder, Depression, Depressive Disorder, Major, Mood Disorders, Mental Disorders
Interventions
Brexpiprazole, Seroquel XR, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
2,182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
44
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 39 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Study of Seltorexant as Adjunctive Therapy to Antidepressants in Adult and Elderly Participants With Major Depressive Disorder With Insomnia Symptoms Who Have Responded Inadequately to Antidepressant and Long-term Safety Extension Treatment With Seltorexant

NCT04533529
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Seltorexant, Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 74 Years
Enrollment
588 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
51
States / cities
Anaheim, California • Cerritos, California • Irvine, California + 42 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 2 Interventional Results available

Study of the Safety and Efficacy of OPC-34712 as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder

NCT00797966
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
OPC-34712, Placebo, ADT
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
50
States / cities
Arcadia, California • Beverly Hills, California • Escondido, California + 43 more
Source: ClinicalTrials.gov public record
Updated Feb 29, 2016 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Fixed Dose Study of Adjunctive Treatment to Antidepressant Therapy for Adults With Major Depressive Disorder

NCT01173601
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
LY2216684, Placebo, SSRI
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
1,416 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
22
States / cities
Irvine, California • La Habra, California • Redlands, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2018 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Study to Assess the Efficacy and Safety of REL-1017 as Adjunctive Treatment for Major Depressive Disorder (MDD)

NCT04688164
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
REL-1017, Placebo
Drug
Lead sponsor
Relmada Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
11
States / cities
Miami, Florida • Miami Springs, Florida • Palm Bay, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Oct 14, 2026, 7:47 AM EDT
Terminated Phase 3 Interventional Results available

Study of Adjunctive or Monotherapy Rapastinel Treatment in Patients With Major Depressive Disorder (MDD)

NCT03668600
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Rapastinel
Drug
Lead sponsor
Naurex, Inc, an affiliate of Allergan plc
Industry
Eligibility
18 Years to 75 Years
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
74
States / cities
Birmingham, Alabama • Dothan, Alabama • Phoenix, Arizona + 67 more
Source: ClinicalTrials.gov public record
Updated Jul 17, 2020 · Synced Oct 14, 2026, 7:47 AM EDT
Recruiting Phase 3 Interventional

NBI-1065845-MDD3025: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

NCT06911112
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
NBI-1065845, Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
17
States / cities
Huntsville, Alabama • Bryant, Arkansas • Glendale, California + 14 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

Study of Brexpiprazole as Adjunctive Treatment of Irritability in Patients With Major Depressive Disorder and an Inadequate Response to Antidepressant Therapy

NCT01942785
View directory record Official record
Conditions
Major Depressive Disorder, Irritability
Interventions
Brexpiprazole
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
15
States / cities
Tucson, Arizona • Glendale, California • Oakland, California + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2016 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

Safety and Tolerability of Oral OPC-34712 as Adjunctive Therapy in Adults With Major Depressive Disorder (the Orion Trial)

NCT01360866
View directory record Official record
Conditions
Depressive Disorder, Depression, Depressive Disorder, Major, Mood Disorders, Mental Disorders
Interventions
OPC-34712, Escitalopram, Fluoxetine, Paroxetine CR, Sertraline, Duloxetine, Venlafaxine XR
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
2,944 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
93
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 90 more
Source: ClinicalTrials.gov public record
Updated Sep 17, 2018 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 3 Interventional Results available

A Study of ALKS 5461 for Treatment Refractory Major Depressive Disorder (MDD)

NCT03188185
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
ALKS 5461, ALKS 5461 Placebo
Drug
Lead sponsor
Alkermes, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
278 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
30
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Alamitos, California + 27 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2021 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 1 Interventional Results available

A Study to Test How Well Different Doses of BI 1569912 Are Tolerated and How Well They Work in People With Depression Who Take Anti-depressive Medication

NCT04937829
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
5 mg BI 1569912, 20 mg BI 1569912, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
10
States / cities
Garden Grove, California • Torrance, California • Miami, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 14, 2026, 7:47 AM EDT
Terminated Phase 3 Interventional Results available

Extension Study of the Safety and Efficacy of Armodafinil Treatment as Adjunctive Therapy in Adults With Major Depression Associated With Bipolar I Disorder

NCT01121536
View directory record Official record
Conditions
Depression
Interventions
Armodafinil
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
867 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
66
States / cities
Birmingham, Alabama • Anaheim, California • Cerritos, California + 50 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 14, 2026, 7:47 AM EDT
Recruiting Phase 3 Interventional

NBI-1065845-MDD3026: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

NCT06963021
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
NBI-1065845, Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
15
States / cities
Chino, California • Los Angeles, California • Stanford, California + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 14, 2026, 7:47 AM EDT
Completed Phase 4 Interventional Results available

Antidepressant Plus Asenapine Versus Antidepressant Plus Placebo for Depression

NCT01670019
View directory record Official record
Conditions
Major Depressive Disorder Without Psychotic Features
Interventions
Asenapine 5-20 mg daily, Placebo 1-4 tablets daily
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
5
States / cities
Augusta, Georgia • Durham, North Carolina • Greenville, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2015 · Synced Oct 14, 2026, 7:47 AM EDT
Not yet recruiting Phase 4 Interventional

Neurocircuitry Mechanisms and Efficacy of Lumateperone as Adjunctive Therapy for Major Depressive Disorder and History of Early Life Abuse

NCT07369115
View directory record Official record
Conditions
Major Depressive Diorder, Early Life Trauma
Interventions
Lumateperone 42 mg, Placebo
Drug · Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
21 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Oct 14, 2026, 7:47 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of Brexpiprazole as Adjunctive Treatment in Elderly Patients With Major Depressive Disorder With an Inadequate Response to Antidepressant Treatment

NCT01837797
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Placebo, Brexpiprazole 1 mg, Brexpiprazole 3 mg
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
65 Years and older
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
2
States / cities
National City, California • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Oct 17, 2018 · Synced Oct 14, 2026, 7:47 AM EDT