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ClinicalTrials.gov public records Last synced Oct 3, 2026, 1:23 PM EDT

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Showing 25–48 of 1,594 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Major Depressive Disorder \(MDD Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Defining Neurobiological Links Between Substance Use and Mental Illness

NCT05538910
View directory record Official record
Conditions
Major Depressive Disorder, Substance Use Disorder, Normal Physiology
Interventions
Placebo Nicotine Patch, Nicotine Patch
Other · Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

TMS for Adults With Autism and Depression

NCT02939560
View directory record Official record
Conditions
Autism Spectrum Disorder, Depression, Depressive Disorder, Major Depressive Disorder
Interventions
NeuroStar® TMS device (Neuronetics, Atlanta, GA)
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 3 Interventional Results available

A Randomized, Double-blind, Two-arm Study Comparing the Efficacy and Safety of Trazodone Contramid® OAD and Placebo in the Treatment of Unipolar Major Depressive Disorder.

NCT00775203
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Trazodone Hydrochloride (HCl) Extended-Release Tablets, Placebo
Drug
Lead sponsor
Labopharm Inc.
Industry
Eligibility
18 Years and older
Enrollment
412 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
28
States / cities
Birmingham, Alabama • Mesa, Arizona • Beverly Hills, California + 25 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2012 · Synced Oct 3, 2026, 1:23 PM EDT
Active, not recruiting Phase 3 Interventional

"A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive Disorder"

NCT06564818
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
CYB003, Psychological Support, Placebo
Drug · Behavioral
Lead sponsor
Cybin IRL Limited
Industry
Eligibility
18 Years to 85 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
45
States / cities
Phoenix, Arizona • Tucson, Arizona • Bellflower, California + 35 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 2 Interventional Results available

Pioglitazone for the Treatment of Major Depressive Disorder Comorbid With Metabolic Syndrome

NCT00671515
View directory record Official record
Conditions
Depressive Disorder, Major, Metabolic Syndrome X
Interventions
Pioglitazone
Drug
Lead sponsor
Joseph Calabrese, MD
Other
Eligibility
18 Years to 70 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 26, 2017 · Synced Oct 3, 2026, 1:23 PM EDT
Terminated Phase 2 Interventional Results available

The Antidepressant Efficacy of the Anticholinergic Scopolamine

NCT00369915
View directory record Official record
Conditions
Unipolar Depression, Bipolar Depression
Interventions
Scopolamine
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 10, 2016 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 2 Interventional Results available

Study to Treat Major Depressive Disorder With a New Medication

NCT03043560
View directory record Official record
Conditions
Depressive Disorder, Anhedonia
Interventions
Ezogabine, Placebos
Drug
Lead sponsor
James Murrough
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 23, 2020 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 3 Interventional

Triiodothyronine (T3) Supplementation in the Treatment of Bipolar and Unipolar Depression.

NCT00158990
View directory record Official record
Conditions
Major Depression, Bipolar Disorder, Unipolar Depression
Interventions
triiodothyronine, sertraline
Drug
Lead sponsor
Hadassah Medical Organization
Other
Eligibility
18 Years to 70 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 4, 2007 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 4 Interventional

Pregnenolone Trial for Depression in Bipolar Disorders or Recurrent Major Depressive Disorder With Substance Abuse

NCT00223197
View directory record Official record
Conditions
Bipolar Disorder, Major Depressive Disorder, Substance Abuse
Interventions
Pregnenolone
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 3, 2012 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Not applicable Interventional

Clinical Trials of Three Non-Drug Treatments for Winter Depression (SAD)

NCT00006517
View directory record Official record
Conditions
Seasonal Affective Disorder, Mood Disorders, Depression
Interventions
bright light box, dawn simulator, high-output negative ion generator, low-output negative ion generator, dawn light pulse
Device
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 3, 2026, 1:23 PM EDT
Active, not recruiting Phase 2 Interventional

Psilocybin Treatment of Major Depressive Disorder With Co-occurring Alcohol Use Disorder

NCT04620759
View directory record Official record
Conditions
Major Depressive Disorder, Alcohol Use Disorder
Interventions
Psilocybin, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 2 Interventional

Efficacy and Safety Study of BHV-7000 Monotherapy in Major Depression

NCT06419608
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
BHV-7000, Placebo
Drug
Lead sponsor
Biohaven Therapeutics Ltd.
Industry
Eligibility
18 Years to 75 Years
Enrollment
336 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
62
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Rogers, Arkansas + 54 more
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Not applicable Interventional Results available

IntelliCare: Artificial Intelligence in a Mobile Intervention for Depression and Anxiety (AIM)

NCT02176226
View directory record Official record
Conditions
Major Depressive Disorder, Anxiety Disorders
Interventions
IntelliCare
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
19 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Not applicable Interventional Results available

Contingency Management of Alcohol Abuse in the Severely Mentally ILL

NCT01567943
View directory record Official record
Conditions
Alcohol Abuse, Schizophrenia, Bipolar Disorder, Major Depressive Disorder
Interventions
Contingency Management
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 65 Years
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 4 Interventional Results available

The Relationship Among Changes in Brain Network Activation in Adult Outpatients With Major Depressive Disorder

NCT02749721
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
vortioxetine
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Chicago, Illinois • Skokie, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 4, 2021 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Not applicable Interventional Results available

Environmental Treatment for Seasonal Affective Disorder (SAD)

NCT00139997
View directory record Official record
Conditions
Seasonal Affective Disorder
Interventions
Litebook treatment devices, Inactivated negative ion generator
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 6, 2013 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 4 Interventional Results available

Comparative Effectiveness Research Trial for Antidepressant Incomplete and Non-responders With TRD

NCT02977299
View directory record Official record
Conditions
Treatment Resistant Major Depressive Disorder
Interventions
Aripiprazole, Repetitive transcranial magnetic stimulation (rTMS), Venlafaxine XR
Drug · Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
278 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
11
States / cities
Birmingham, Alabama • Los Angeles, California • Stanford, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 1 Interventional

Vagus Nerve Stimulation for Treating Adults With Severe Fibromyalgia

NCT00294281
View directory record Official record
Conditions
Fibromyalgia
Interventions
Vagus Nerve Stimulation (VNS) Therapy
Device
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
21 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 20, 2011 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 2 Interventional

Psilocybin in Co-occuring Major Depressive Disorder and Borderline Personality Disorder

NCT05399498
View directory record Official record
Conditions
Borderline Personality Disorder, Major Depressive Disorder
Interventions
Psilocybin
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 3, 2026, 1:23 PM EDT
Not yet recruiting Not applicable Interventional

Helping Kentuckians Overcome Depression and Opioid Addiction With Brain Stimulation

NCT07842601
View directory record Official record
Conditions
Opioid Use Disorder, Major Depressive Disorder (MDD)
Interventions
Transcranial Magnetic Stimulation (TMS), Sham Transcranial Magnetic Stimulation (TMS)
Device
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Pregnenolone for Cannabis Use Disorder and Depression

NCT07685964
View directory record Official record
Conditions
Cannabis Use Disorder, Major Depressive Disorder (MDD)
Interventions
Pregnenolone
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Dallas, Texas • Richardson, Texas
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Not applicable Interventional

Study of Technology-assisted Treatment of Adolescent Depression

NCT01582581
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Telephonic CBT, Wait List Control
Behavioral
Lead sponsor
iHope Network, Inc.
Industry
Eligibility
12 Years to 17 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
2
States / cities
Farmington, Connecticut • Woburn, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2015 · Synced Oct 3, 2026, 1:23 PM EDT
Terminated Phase 4 Interventional Results available

Open-Label Pilot Study to Examine the Value of Substituting Quetiapine for Benzodiazepines

NCT01244711
View directory record Official record
Conditions
Major Depression, Generalized Anxiety Disorder
Interventions
quetiapine
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 3, 2015 · Synced Oct 3, 2026, 1:23 PM EDT
Completed Phase 2Phase 3 Interventional

Effects of Duloxetine vs. Escitalopram on Heart Rate Variability in Depression

NCT00215228
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
duloxetine vs. escitalopram
Drug
Lead sponsor
Duke University
Other
Eligibility
20 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Oct 3, 2026, 1:23 PM EDT