Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 17, 2026, 4:09 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 113 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Adjunctive Treatment of Major Depressive Disorder Clear all
Completed Phase 2 Interventional Results available

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

NCT00840034
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
LY2216684, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
24
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Carson, California + 21 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2018 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 2 Interventional

A Trial of the Safety and Efficacy of SEP-363856 in the Treatment of Adults With Major Depressive Disorder

NCT05593029
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
SEP-363856, Placebo
Drug · Other
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
929 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
53
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Tucson, Arizona + 45 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Terminated Phase 2 Interventional Results available

A Study to Evaluate the Safety and Efficacy of TS-121 as an Adjunctive Treatment for Major Depressive Disorder

NCT03093025
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
TS-121 10 mg, TS-121 50 mg, Placebo
Drug
Lead sponsor
Taisho Pharmaceutical R&D Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
22
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Garden Grove, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Efficacy and Safety of Armodafinil Treatment (150 mg/Day) as Adjunctive Therapy in Adults With Major Depression Associated With Bipolar I Disorder

NCT01305408
View directory record Official record
Conditions
Depression
Interventions
Armodafinil, Placebo
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
399 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
28
States / cities
Birmingham, Alabama • Sherman Oaks, California • Temecula, California + 21 more
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Sep 17, 2026, 4:09 AM EDT
Not yet recruiting Phase 3 Interventional

A Study of Brenipatide (LY3537031) in Adult Participants With Major Depressive Disorder

NCT07775300
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Brenipatide, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 75 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
36
States / cities
Birmingham, Alabama • Phoenix, Arizona • Irvine, California + 28 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Not applicable Interventional

Ropinirole Controlled Release (CR) as an Adjunctive Agent in the Treatment of Major Depression

NCT00285727
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Ropinirole CR
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
2
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 18, 2008 · Synced Sep 17, 2026, 4:09 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 26, 2024 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional Results available

Multicenter Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder

NCT05061706
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Lumateperone, Placebo
Drug
Lead sponsor
Intra-Cellular Therapies, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
17
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Newport Beach, California + 14 more
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Sep 17, 2026, 4:09 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 16, 2020 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional Results available

Brexpiprazole as Adjunctive Treatment in Patients With Major Depressive Disorder With an Inadequate Response to Antidepressant Treatment

NCT01838681
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Placebo, Brexpiprazole, ADT
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years to 75 Years
Enrollment
1,986 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
8
States / cities
Little Rock, Arkansas • Cerritos, California • Temecula, California + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2017 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional Results available

Evaluation of the Safety of Adjunct Brexpiprazole in Elderly Patients With Major Depressive Disorder and an Inadequate Response to Antidepressant Treatment

NCT02400346
View directory record Official record
Conditions
Major Depression Disorder
Interventions
Adjunct brexpiprazole, ADT
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
65 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
13
States / cities
Arcadia, California • Miami, Florida • Orlando, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Sep 17, 2026, 4:09 AM EDT
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 18, 2018 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional Results available

Study of the Safety and Efficacy of Two Fixed Doses of OPC-34712 as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder (the Polaris Trial)

NCT01360632
View directory record Official record
Conditions
Depressive Disorder, Depression, Depressive Disorder, Major, Mood Disorders, Mental Disorders
Interventions
OPC-34712 + ADT, Placebo + ADT
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,539 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
52
States / cities
Birmingham, Alabama • Costa Mesa, California • Glendale, California + 49 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2015 · Synced Sep 17, 2026, 4:09 AM EDT
Terminated Phase 3 Interventional Results available

Long-term Safety and Tolerability Study of Brexpiprazole as Adjunctive Treatment in Patients With Major Depressive Disorder

NCT01944969
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Brexpiprazole
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Sep 17, 2026, 4:09 AM EDT
Terminated Phase 3 Interventional Results available

Extension Study of Pimavanserin in Subjects With Major Depressive Disorder and Inadequate Response to Antidepressant Treatment

NCT04000009
View directory record Official record
Conditions
Adjunctive Treatment of Major Depressive Disorder
Interventions
Pimavanserin
Drug
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
33
States / cities
Garden Grove, California • Glendale, California • Irvine, California + 26 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 17, 2026, 4:09 AM EDT
Recruiting Phase 3 Interventional

Long-Term Study to Assess the Safety and Tolerability of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

NCT06966401
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
NBI-1065845
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years and older
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
46
States / cities
Huntsville, Alabama • Bryant, Arkansas • Little Rock, Arkansas + 40 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Terminated Phase 3 Interventional

A Study of Aticaprant 10 mg as Adjunctive Therapy in Adult Participants With Major Depressive Disorder (MDD) With Moderate-to-severe Anhedonia and Inadequate Response to Current Antidepressant Therapy and Long-term Extension Treatment With Aticaprant

NCT06514742
View directory record Official record
Conditions
Depressive Disorder, Major, Anhedonia
Interventions
Aticaprant, Placebo
Drug · Other
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 64 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
39
States / cities
Huntsville, Alabama • Phoenix, Arizona • Tucson, Arizona + 33 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate the Efficacy and Safety of Adjunctive Pimavanserin in Major Depressive Disorder (CLARITY)

NCT03018340
View directory record Official record
Conditions
Adjunctive Treatment of Major Depressive Disorder
Interventions
Pimavanserin, Placebo
Drug · Other
Lead sponsor
ACADIA Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
36
States / cities
Birmingham, Alabama • Rogers, Arkansas • Garden Grove, California + 31 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced Sep 17, 2026, 4:09 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 7, 2018 · Synced Sep 17, 2026, 4:09 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 Sep 30, 2015 · Synced Sep 17, 2026, 4:09 AM EDT
Recruiting Phase 3 Interventional

A Study to Evaluate the Maintenance Effect of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

NCT07196501
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
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
24
States / cities
Oceanside, California • Orange, California • San Jose, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 17, 2026, 4:09 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 28, 2016 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

A Study of Adjunctive Aripiprazole in Patients With Major Depressive Disorder

NCT00095823
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Antidepressant + Placebo, Antidepressant + Aripiprazole
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
20
States / cities
Garden Grove, California • Northridge, California • Washington D.C., District of Columbia + 17 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2013 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

A Study of Seltorexant Compared to Quetiapine XR as Adjunctive Therapy to Antidepressants in Adult and Elderly Participants With Major Depressive Disorder With Insomnia Symptoms Who Have Responded Inadequately to Antidepressant Therapy

NCT04513912
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Seltorexant, Matching placebo to Seltorexant, Quetiapine XR, Matching placebo to Quetiapine XR
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 74 Years
Enrollment
757 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
75
States / cities
Birmingham, Alabama • Tucson, Arizona • Culver City, California + 62 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Sep 17, 2026, 4:09 AM EDT