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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Treatment Resistant Major Depressive Disorder Clear all
Terminated No phase listed Observational

Functional and Neurochemical Correlates of Treatment Response in Major Depressive Disorder

NCT01598324
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 Sep 29, 2026, 4:50 PM EDT
Completed Phase 4 Interventional

Oral Aspirin + Ketamine as Adjunct to Oral Antidepressant Therapy for Depression

NCT05615948
View directory record Official record
Conditions
Treatment Resistant Depression, Major Depressive Disorder, Analgesia, Ketamine, Peripheral Nervous System Agents, Central Nervous System Depressants, Neurotransmitter Agents, Anti-Inflammatory Agents, Physiological Effects of Drugs, Sensory System Agents, Analgesics, Non-Narcotic, Anti-Inflammatory Agents, Non-Steroidal, Depressive Symptoms
Interventions
VTS-K
Drug
Lead sponsor
Theresa Jacob, PhD, MPH
Other
Eligibility
18 Years to 89 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Sep 29, 2026, 4:50 PM EDT
Recruiting Phase 2 Interventional

Mindfulness Engaged Neurostimulation for Depression (MEND II)

NCT07512284
View directory record Official record
Conditions
Depression, Treatment Resistant Depression, Major Depressive Disorder, Depressive Disorder, Depressive Symptoms
Interventions
Medi-TBS
Combination Product
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Not applicable Interventional Results available

Ketamine Infusion for Treatment-resistant Major Depressive Disorder

NCT01582945
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 Sep 29, 2026, 4:50 PM 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 30, 2014 · Synced Sep 29, 2026, 4:50 PM EDT
Terminated Phase 2 Interventional Results available

Salicylic Augmentation in Depression

NCT03152409
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 Sep 29, 2026, 4:50 PM 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 5, 2020 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Phase 4 Interventional Results available

Abilify as an Adjunctive Treatment for Refractory Depression

NCT00220636
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Aripiprazole
Drug
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

5-hydroxytryptophan and Creatine for Treatment Resistant Depression Associated With Hypoxia in Females

NCT02356107
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
5-hydroxytryptophan and Creatine monohydrate
Drug
Lead sponsor
Perry Renshaw
Other
Eligibility
18 Years to 64 Years · Female only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 28, 2018 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Not applicable Interventional

Pilot Study in Multi-Coil Repetitive Transcranial Magnetic Stimulation (rTMS) for Treatment Resistant Depression

NCT01431001
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Cervel Neurotech Deep Shaped-Field repetitive transcranial magnetic stimulator (DSF-rTMS)
Device
Lead sponsor
Cervel Neurotech, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
3
States / cities
Atlanta, Georgia • Chicago, Illinois • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 18, 2014 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Not applicable Interventional Results available

Low Field Magnetic Stimulation for Treatment Resistant Depression

NCT01944644
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Active Low Field Magnetic Stimulation, Sham Low Field Magnetic Stimulation
Device
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 16, 2018 · Synced Sep 29, 2026, 4:50 PM EDT
Active, not recruiting No phase listed Observational

Open Label Optimization Study

NCT05819021
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
SAINT® Neuromodulation System (NMS)
Device
Lead sponsor
Magnus Medical
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
7
States / cities
Costa Mesa, California • Los Angeles, California • Sunnyvale, California + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Sep 29, 2026, 4:50 PM EDT
Withdrawn Phase 2 Interventional

The Effects of Psilocybin on Self-Focus and Self-Related Processing in Treatment Resistant MDD

NCT05381974
View directory record Official record
Conditions
Treatment-Resistant Major Depressive Disorder
Interventions
Psilocybin
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 23, 2024 · Synced Sep 29, 2026, 4:50 PM EDT
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 13, 2026 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Not applicable Interventional Results available

Stanford Accelerated Intelligent Neuromodulation Therapy for Treatment-Resistant Depression: OL Cohort

NCT03240692
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Accelerated theta-burst stimulation treatment
Device
Lead sponsor
Stanford University
Other
Eligibility
22 Years to 80 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 20, 2022 · Synced Sep 29, 2026, 4:50 PM EDT
Withdrawn Phase 4 Interventional

VA Aripiprazole vs Esketamine for Treatment Resistant Depression

NCT05554627
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
Esketamine, Aripiprazole
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 74 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
26
States / cities
Tuscaloosa, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 4, 2024 · Synced Sep 29, 2026, 4:50 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

PET Biomarkers in Treatment Resistant Depression

NCT01031810
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
tranylcypromine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 17, 2014 · Synced Sep 29, 2026, 4:50 PM EDT
Withdrawn Not applicable Interventional

Ketamine and Scopolamine Infusions for Treatment-resistant Major Depressive Disorder

NCT01613820
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Ketamine, Scopolamine
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 18, 2018 · Synced Sep 29, 2026, 4:50 PM EDT
Recruiting Not applicable Interventional

Brain Stimulation for Severe Depression

NCT05393622
View directory record Official record
Conditions
Depression Severe
Interventions
INTRACALVARIAL PREFRONTAL CORTICAL STIMULATION (IpCS) IN SEVERE TREATMENT-RESISTANT DEPRESSION
Device
Lead sponsor
Inner Cosmos Inc
Industry
Eligibility
21 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Boston, Massachusetts • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Not applicable Interventional Results available

Augmentation of Treatment-Resistant Depression With An Analog of the Neuroactive Steroid Allopregnanolone

NCT02900092
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 Sep 29, 2026, 4:50 PM EDT
Recruiting Phase 2 Interventional

Investigation of the Antidepressant Effects of (2R,6R)-HNK, an Enhancer of Synaptic Glutamate Release, in Treatment-Resistant Depression

NCT06511908
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 Sep 13, 2026 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Phase 2 Interventional Results available

Study of Efficacy, Safety, Tolerability and Pharmacokinetics of MIJ821 in Participants With Treatment- Resistant Depression (TRD)

NCT05454410
View directory record Official record
Conditions
Treatment-Resistant Depression
Interventions
MIJ821 Subcutaneous Injection 1 mg, MIJ821 Subcutaneous Injection 4 mg, MIJ821 Subcutaneous Injection 10 mg, Placebo Subcutaneous Injection
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
3
States / cities
Birmingham, Alabama • Oakland Park, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 12, 2025 · Synced Sep 29, 2026, 4:50 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 15, 2026 · Synced Sep 29, 2026, 4:50 PM EDT
Completed Not applicable Interventional

Feasibility of Resistance Exercise to Treat Major Depression Via Cerebrovascular Mechanisms

NCT05695365
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Resistance Exercise Training
Behavioral
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 4, 2024 · Synced Sep 29, 2026, 4:50 PM EDT