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ClinicalTrials.gov public records Last synced May 22, 2026, 1:26 AM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Depressive Disorder, Treatment-Resistant Clear all
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Accelerated intermittent theta-burst treatment
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Depressive Disorder, Major, Depressive Disorder, Treatment-Resistant
Interventions
Nitrous Oxide 25%, Nitrous Oxide 50%, Placebo Gas
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 3, 2022 · Synced May 22, 2026, 1:26 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Ganaxolone
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years to 75 Years · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2019 · Synced May 22, 2026, 1:26 AM EDT
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Schizophrenia, Schizophrenia and Related Disorders, Bipolar Disorder, Bipolar and Related Disorders, Major Depressive Disorder, Major Depression Severe, Ketogenic Dieting, Ketosis, Metabolic Disease, Metabolic Syndrome
Interventions
LCHF Ketogenic Diet, Diet-as-Usual (DAU)
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Depressive Disorder, Treatment-Resistant
Interventions
AVP-786 (d6-dextromethorphan hydrobromide and quinidine sulfate combination), Placebo
Drug
Lead sponsor
Avanir Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
32
States / cities
Birmingham, Alabama • Bellflower, California • Costa Mesa, California + 26 more
Source: ClinicalTrials.gov public record
Updated May 14, 2017 · Synced May 22, 2026, 1:26 AM EDT
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Treatment Resistant Depression (TRD)
Interventions
aiTBS
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
3
States / cities
San Diego, California • New York, New York • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced May 22, 2026, 1:26 AM EDT
Recruiting Phase 1 Interventional
View directory record Official record
Conditions
Treatment-resistant Bipolar Depression
Interventions
Allogeneic Bone Marrow Derived Multipotent Mesenchymal Stromal Cells (MSCs), Placebo
Biological
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2025 · Synced May 22, 2026, 1:26 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Depression, Depressive Disorder, Major Depressive Disorder, Treatment Resistant Depression
Interventions
Aspirin 325mg, Placebo Oral Tablet
Drug
Lead sponsor
Jessica Harder
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 30, 2024 · Synced May 22, 2026, 1:26 AM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Treatment-Resistant Depression
Interventions
Not listed
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 12, 2013 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 2Phase 3 Interventional
View directory record Official record
Conditions
Depression
Interventions
Fluoxetine, Venlafaxine, Cognitive Behavioral Therapy (CBT), Citalopram
Drug · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Years to 18 Years
Enrollment
334 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
6
States / cities
Los Angeles, California • Portland, Oregon • Pittsburgh, Pennsylvania + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2014 · Synced May 22, 2026, 1:26 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Bipolar Depression, Treatment Resistant Depression
Interventions
Intensive intermittent theta-burst stimulation (iTBS)
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Lithium, Ketamine
Drug
Lead sponsor
James Murrough
Other
Eligibility
21 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 22, 2014 · Synced May 22, 2026, 1:26 AM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Suicide, Depressive Disorder, Treatment-Resistant, Ketamine, Molecular Mechanisms of Pharmacological Action, Neurotransmitter Agents, Excitatory Amino Acid Agents, Physiological Effects of Drugs, Depressive Disorder, Major, Depressive Disorder, Depression, Mental Disorders, Mood Disorders, Behavioral Symptoms
Interventions
(2R,6R)-hydroxynorketamine (0.25 to 2.0 mg/kg), Placebo
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced May 22, 2026, 1:26 AM EDT
Not yet recruiting Phase 1 Interventional
View directory record Official record
Conditions
Treatment Resistant Depression (TRD)
Interventions
Ketamine (0.25 mg/kg), Ketamine (0.5 mg/kg), Ketamine (0.75 mg/kg)
Drug
Lead sponsor
Soterix Medical
Industry
Eligibility
18 Years to 59 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 28, 2025 · Synced May 22, 2026, 1:26 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Monoamine Oxidase Inhibitor (MAOI)
Drug
Lead sponsor
Kathryn O'Connor
Other
Eligibility
18 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 17, 2021 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Posttraumatic Stress Disorder
Interventions
Comparator Dose (40mg) MDMA HCl, Active Dose 2 (100 mg) MDMA HCl, Active Dose 1 (125 mg) MDMA HCl, Psychotherapy
Drug · Behavioral
Lead sponsor
Resilient Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced May 22, 2026, 1:26 AM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Psilocybin
Drug
Lead sponsor
COMPASS Pathways
Industry
Eligibility
18 Years and older
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
40
States / cities
Tucson, Arizona • Culver City, California • Garden Grove, California + 30 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced May 22, 2026, 1:26 AM EDT
Active, not recruiting Not applicable Interventional
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Aerobic Exercise, Video Watching
Behavioral
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 1 Interventional
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 30, 2025 · Synced May 22, 2026, 1:26 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Treatment Resistant Depression, Major Depressive Disorder
Interventions
AXS-05 (dextromethorphan-bupropion)
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
20
States / cities
Little Rock, Arkansas • Redlands, California • Sherman Oaks, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Ketamine, Placebo Midazolam
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
6
States / cities
Palo Alto, California • New Haven, Connecticut • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced May 22, 2026, 1:26 AM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Depression
Interventions
Pramipexole (Mirapex), Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 25, 2012 · Synced May 22, 2026, 1:26 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Ketamine
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced May 22, 2026, 1:26 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Unipolar Depression
Interventions
lamotrigine, placebo, paroxetine
Drug
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years to 65 Years
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 12, 2009 · Synced May 22, 2026, 1:26 AM EDT