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ClinicalTrials.gov public records Last synced Oct 9, 2026, 6:58 PM EDT

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Showing 49–72 of 231 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo Comparator: Placebo-controlled antidepressant treatment Clear all
Completed Not applicable Interventional

Antidepressant Treatment in Older Adults With Schizophrenia

NCT00047450
View directory record Official record
Conditions
Schizophrenia
Interventions
Citalopram (Celexa), Placebo
Drug
Lead sponsor
Veterans Medical Research Foundation
Other
Eligibility
40 Years and older
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
2
States / cities
San Diego, California • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 9, 2013 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 2 Interventional

AZD6765 Severe Major Depressive Disorder (MDD) IV

NCT00781742
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
AZD6765, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
27
States / cities
Little Rock, Arkansas • Los Angeles, California • Orange, California + 24 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2012 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 3 Interventional

Bipolar II Depression: Lithium, SSRI, or the Combination

NCT00276965
View directory record Official record
Conditions
Bipolar Disorder, Depression
Interventions
Sertraline, Lithium carbonate
Drug
Lead sponsor
Lindner Center of HOPE
Other
Eligibility
18 Years to 65 Years
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
3
States / cities
Los Angeles, California • Palo Alto, California • Mason, Ohio
Source: ClinicalTrials.gov public record
Updated May 10, 2013 · Synced Oct 9, 2026, 6:58 PM 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 9, 2026, 6:58 PM EDT
Withdrawn Phase 4 Interventional

Can Additional Drug Therapy Accelerate Response Time to Antidepressants

NCT00221494
View directory record Official record
Conditions
Depression
Interventions
citalopram + tiodothyronine, or + pindolol, or + placebo
Drug
Lead sponsor
Mark Frye
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 1, 2015 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of SPD489 in Combination With an Antidepressant in the Treatment of Adults With Major Depressive Disorder

NCT01436162
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Antidepressant + SPD489 (Lisdexamfetamine dimesylate ), Antidepressant + Placebo
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
36
States / cities
Scottsdale, Arizona • Little Rock, Arkansas • Costa Mesa, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 2 Interventional Results available

A Study of the Effects of a New Antidepressant Treatment (GSK561679) in Females With Major Depressive Disorder

NCT00733980
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
GSK561679, Placebo
Drug · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years · Female only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
18
States / cities
Cerritos, California • San Diego, California • Torrance, California + 15 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2017 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Physiologic Monitoring of Antidepressant Treatment Response

NCT00759317
View directory record Official record
Conditions
Depression
Interventions
venlafaxine (Effexor)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2002
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 3, 2014 · Synced Oct 9, 2026, 6:58 PM EDT
Recruiting Phase 3 Interventional

Lumateperone for Late-Life Depression

NCT07623135
View directory record Official record
Conditions
Treatment Resistant Depression (TRD), Late Life Depression (LLD), Depression / Major Depressive Disorder
Interventions
Lumateperone, Placebo
Drug
Lead sponsor
Eric Lenze
Other
Eligibility
60 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Tucson, Arizona • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 4 Interventional

Thyroid Medication and Antidepressants for Treating Major Depression

NCT00208702
View directory record Official record
Conditions
Major Depression
Interventions
Triiodothyronine, Placebo, Sertraline
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 60 Years
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2003
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 17, 2015 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Efficacy and Safety of JNJ-42847922 as Adjunctive Therapy to Antidepressants in Adult Participants With Major Depressive Disorder Who Have Responded Inadequately to Antidepressant Therapy

NCT03227224
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Placebo, JNJ-42847922
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
287 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
33
States / cities
Anaheim, California • Chino, California • Lemon Grove, California + 24 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Oct 9, 2026, 6:58 PM EDT
Terminated Phase 3 Interventional Results available

A Study of Mifepristone vs. Placebo in the Treatment of Patients With Major Depression With Psychotic Features

NCT00637494
View directory record Official record
Conditions
Psychotic Depression, Severe Major Depression With Psychotic Features, Psychosis
Interventions
mifepristone, placebo
Drug
Lead sponsor
Corcept Therapeutics
Industry
Eligibility
22 Years and older
Enrollment
292 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
42
States / cities
Little Rock, Arkansas • Anaheim, California • Downey, California + 34 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Cariprazine As Adjunctive Therapy In Major Depressive Disorder

NCT00854100
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Antidepressant + placebo, Antidepressant + cariprazine (0.1-0.3 mg/day), Antidepressant + cariprazine (1-2 mg/d)
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 65 Years
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
41
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Arcadia, California + 35 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 2 Interventional

An Eight-week Study Evaluating the Efficacy and Tolerability of Two Doses of SSR149415 in Outpatients With Generalized Anxiety Disorder

NCT00374166
View directory record Official record
Conditions
Anxiety Disorders
Interventions
SSR149415, Placebo, Paroxetine
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 64 Years
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 4 Interventional Results available

Evaluating the Effectiveness of Escitalopram to Prevent Depression in Head and Neck Cancer Patients Receiving Treatment

NCT00536172
View directory record Official record
Conditions
Depression
Interventions
Escitalopram, Placebo
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Nicotine Patch Pretreatment for Smoking Cessation in PTSD

NCT00625131
View directory record Official record
Conditions
Stress Disorders, Posttraumatic, Tobacco Use Disorder
Interventions
Nicotine, Cognitive Behavioral Therapy for Smoking Cessation, Bupropion Sustained Release (SR), Placebo patch
Drug · Behavioral
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 70 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 20, 2014 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 4 Interventional

Effectiveness of Ketamine for Depression and Suicidal Ideation in the Emergency Department

NCT04266288
View directory record Official record
Conditions
Depression, Depression Severe, Depression Acute, Depression and Suicide, Suicidal Ideation
Interventions
Ketamine, Sodium Chloride 0.9%
Drug
Lead sponsor
MercyOne Des Moines Medical Center
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Des Moines, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 1, 2020 · Synced Oct 9, 2026, 6:58 PM 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 25, 2013 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 3 Interventional Results available

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

NCT05455684
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 74 Years
Enrollment
513 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
46
States / cities
Tucson, Arizona • Anaheim, California • Culver City, California + 37 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 1 Interventional

Multiple Ascending Dose Phase 1 Study of ALA-3000

NCT06965569
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
ALA-3000, Placebo, escitalopram, sertraline, duloxetine or venlafaxine XR
Drug
Lead sponsor
Alar Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
4
States / cities
Little Rock, Arkansas • St Louis, Missouri • Eatontown, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2025 · Synced Oct 9, 2026, 6:58 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Does Enhanced Glutamate Transporter Function Produce Antidepressant Effects in People With Major Depression?

NCT02049385
View directory record Official record
Conditions
Depression
Interventions
Diazoxide, Placebo
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2017 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 1 Interventional

Examining Caffeine as a Treatment for Antidepressant-induced Arousal Dysfunction in Women

NCT05685407
View directory record Official record
Conditions
Female Sexual Arousal Disorder
Interventions
Caffeine, Placebo
Drug · Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Oct 9, 2026, 6:58 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety of Quetiapine Fumarate Sustained Release (SEROQUEL SR) in Combination With an Antidepressant in the Treatment of Major Depressive Disorders

NCT00326105
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Quetiapine fumarate
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
56
States / cities
Phoenix, Arizona • El Centro, California • Irvine, California + 53 more
Source: ClinicalTrials.gov public record
Updated Mar 25, 2009 · Synced Oct 9, 2026, 6:58 PM EDT
Terminated Phase 2 Interventional Results available

Efficacy and Safety of MK-1942 When Added to Stable Antidepressant Therapy in Participants With Treatment-Resistant Depression (TRD) (MK-1942-006)

NCT04663321
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
MK-1942, Placebo
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
45
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Bellflower, California + 40 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 9, 2026, 6:58 PM EDT