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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:34 AM EDT

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Showing 49–72 of 169 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Treatment Resistant Major Depression Clear all
Not yet recruiting Not applicable Interventional

Early Brainwave Biomarkers for Personalized Neuromodulation in Treatment-resistant Depression

NCT07528157
View directory record Official record
Conditions
Major Depressive Disorder, Treatment Resistant Depression
Interventions
Personalized iTBS, Non-Personalized iTBS, Sham iTBS
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 4 Interventional

RCT of Brain Longitudinal Biomarker Study (OPT-Neuro RCT)

NCT05531591
View directory record Official record
Conditions
Depression, Dementia, Mild Cognitive Impairment, Treatment Resistant Depression, Major Depressive Disorder, Treatment-Refractory Depression, Late Life Depression, Geriatric Depression
Interventions
Aripiprazole Augmentation, Bupropion Augmentation, Switch to bupropion, Lithium Augmentation, Switch to nortriptyline
Drug
Lead sponsor
Centre for Addiction and Mental Health
Other
Eligibility
60 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
3
States / cities
Los Angeles, California • St Louis, Missouri • New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Oct 21, 2026, 10:34 AM EDT
Terminated Phase 1 Interventional

Adaptive tDCS for Treatment-Resistant MDD

NCT02942368
View directory record Official record
Conditions
Depressive Disorder, Treatment-Resistant
Interventions
tDCS
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 2 Interventional Results available

Inhaled Nitrous Oxide for Treatment-Resistant Depression: Optimizing Dosing Strategies

NCT03283670
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 4, 2022 · Synced Oct 21, 2026, 10:34 AM EDT
Withdrawn Phase 2 Interventional

N2O for Acute Suicidality and Depression in the ED

NCT05710887
View directory record Official record
Conditions
Suicidal Ideation, Major Depressive Disorder, Treatment Resistant Depression
Interventions
Nitrous oxide gas for inhalation, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Recruiting Not applicable Interventional

Treatment ResistAnt Depression Subcallosal CingulatE Network DBS (TRANSCEND)

NCT06423430
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Sham-stimulation, Active-stimulation
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
22 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
26
States / cities
Birmingham, Alabama • Los Angeles, California • Sacramento, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 2 Interventional Results available

Ketamine for Depression and Suicide Risk

NCT02094898
View directory record Official record
Conditions
Depression, Suicide
Interventions
Ketamine
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2017 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 4 Interventional Results available

Optimizing Outcomes of Treatment-Resistant Depression in Older Adults

NCT02960763
View directory record Official record
Conditions
Treatment Resistant Depression, Major Depressive Disorder, Treatment-Refractory Depression, Late Life Depression, Geriatric Depression
Interventions
Aripiprazole Augmentation, Bupropion Augmentation, Switch to bupropion, Lithium Augmentation, Switch to nortriptyline
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
60 Years and older
Enrollment
742 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
4
States / cities
Los Angeles, California • St Louis, Missouri • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Not applicable Interventional

Practicing Alternative Techniques to Heal From Depression: The PATH-D Study

NCT00871299
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Mindfulness Based Cognitive Therapy, Health Enhancement Program and medication management
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 21, 2026, 10:34 AM EDT
Terminated Phase 4 Interventional

Use of Risperidone in ECT for Treatment Resistant Depression

NCT00203723
View directory record Official record
Conditions
Major Depression
Interventions
Risperidone
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 89 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 18, 2006 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Not applicable Interventional

A Clinical Trial for the Treatment of Depression With Repetitive Transcranial Magnetic Stimulation (rTMS)

NCT01909232
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Active Cervel Neurotech Multi-Coil Transcranial Magnetic Stimulator, Inactive Cervel Neurotech Multi-Coil Transcranial Magnetic Stimulator
Device
Lead sponsor
Cervel Neurotech, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
6
States / cities
Atlanta, Georgia • Baltimore, Maryland • Lebanon, New Hampshire + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2016 · Synced Oct 21, 2026, 10:34 AM EDT
Recruiting No phase listed Observational

Natural History of Depression, Bipolar Disorder and Suicide Risk

NCT06462196
View directory record Official record
Conditions
Behavioral Symptoms, Suicide, Self-Injurious Behavior, Sensory System Agents, Analgesics, Peripheral Nervous System Agents, Physiological Effects of Drugs, Anesthetics, Dissociative, Anesthetics, General, Anesthetics, Central Nervous System Depressants, Excitatory Amino Acid Antagonists, Excitatory Amino Acid Agents, Neurotransmitter Agents, Molecular Mechanisms of Pharmacological Action, Ketamine, Depression, Unipolar, Depressive Symptoms, Treatment Resistant Depression, Major Depressive Disorder, Depression, Bipolar
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 120 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Personalized Ultrasonic Brain Stimulation for Depression (R61)

NCT06902298
View directory record Official record
Conditions
Major Depressive Episode, Depression - Major Depressive Disorder, Treatment-Resistant Major Depressive Disorder
Interventions
LTFUS to SCC, LTFUS to ALIC
Device
Lead sponsor
Brian Mickey
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Antidepressant Effects of Nitrous Oxide

NCT05357040
View directory record Official record
Conditions
Major Depressive Disorder, Treatment Resistant Depression
Interventions
Nitrous oxide gas for inhalation, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 2 Interventional Results available

Optimization of IV Ketamine for Treatment Resistant Depression

NCT00768430
View directory record Official record
Conditions
Major Depressive Disorder (MDD), Treatment Resistant Depression (TRD)
Interventions
Ketamine, Midazolam
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
21 Years to 80 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
2
States / cities
New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 31, 2014 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Creatine Augmentation for Adolescent Females With Treatment-Resistant Major Depressive Disorder

NCT02134808
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Creatine, Placebo
Drug
Lead sponsor
Perry Renshaw
Other
Eligibility
12 Years to 21 Years · Female only
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 21, 2026, 10:34 AM EDT
Active, not recruiting Phase 2 Interventional

Specialized Pro-resolving Lipid Mediators and Treatment Resistant Depression

NCT05774665
View directory record Official record
Conditions
Treatment Resistant Depression, Inflammation, Overweight
Interventions
Omega 3, Placebo
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
3
States / cities
Atlanta, Georgia • Boston, Massachusetts • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 2 Interventional Results available

Buprenorphine for Late-Life Treatment Resistant Depression

NCT01071538
View directory record Official record
Conditions
Depression
Interventions
Buprenorphine
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
50 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 9, 2018 · Synced Oct 21, 2026, 10:34 AM EDT
Terminated Phase 2 Interventional Results available

The UTHealth Ketamine Project

NCT02882711
View directory record Official record
Conditions
Treatment Resistant Depression, Major Depressive Disorder, Bipolar Disorder
Interventions
Ketamine
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Oct 21, 2026, 10:34 AM EDT
Recruiting Not applicable Interventional

Maintenance rTMS for Depression (Maitr-De)

NCT06938841
View directory record Official record
Conditions
Major Depressive Disorder, Treatment Resistant Depression
Interventions
Transcranial Magnetic Stimulation (TMS) - Standard maintenance rTMS:, Transcranial Magnetic Stimulation (TMS) - Clustered maintenance rTMS:, Transcranial Magnetic Stimulation (TMS) -- Sham maintenance rTMS
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 80 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
San Diego, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Recruiting Phase 1 Interventional

Mechanism of Action Underlying Ketamine's Antidepressant Effects: The AMPA Throughput Theory in Patients With Treatment-Resistant Major Depression

NCT03973268
View directory record Official record
Conditions
Depression, Major Depressive Disorder, Major Depression
Interventions
Arm 1, 2, 3 device interventions, Arm 2 Interventions, Arm 1, 2, 3 drug Interventions, Arm 1 and 2 Interventions
Device · Other · Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 70 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 2 Interventional Results available

Proof of Concept Study Evaluating the Efficacy and Safety of MIJ821 in Patients With Treatment-resistant Depression

NCT03756129
View directory record Official record
Conditions
Depressive Disorder, Treatment-Resistant
Interventions
MIJ821, Placebo, Ketamine
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
8
States / cities
Birmingham, Alabama • Garden Grove, California • Oakland, California + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2021 · Synced Oct 21, 2026, 10:34 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Tolerability of Riluzole in Treatment Resistant Depression

NCT01204918
View directory record Official record
Conditions
Depression
Interventions
Riluzole, placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
3
States / cities
New Haven, Connecticut • Boston, Massachusetts • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2020 · Synced Oct 21, 2026, 10:34 AM EDT
Recruiting Phase 3 Interventional

Biomarker-guided rTMS for Treatment Resistant Depression

NCT04041479
View directory record Official record
Conditions
Treatment Resistant Depression, Major Depressive Disorder
Interventions
Repetitive Transcranial Magnetic Stimulation
Device
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
22 Years to 65 Years
Enrollment
348 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Stanford, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 25, 2026 · Synced Oct 21, 2026, 10:34 AM EDT