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Showing 1–24 of 423 matching trials from the live ClinicalTrials.gov search.
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Filters: "treatment-resistant depression" Condition: Depression Clear all
Completed Not applicable Interventional

Depression & Insulin Sensitivity in Adolescents

NCT03263351
View directory record Official record
Conditions
Type2 Diabetes, Type 2 Diabetes Mellitus, Insulin Sensitivity, Insulin Resistance, Depression, Adolescent Obesity
Interventions
Cognitive-behavioral therapy group, Health education group
Behavioral
Lead sponsor
Colorado State University
Other
Eligibility
12 Years to 17 Years · Female only
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Jul 22, 2026, 11:15 PM EDT
Recruiting Not applicable Interventional

Closed-Loop Deep Brain Stimulation for Major Depression

NCT04004169
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Stimulation-ON, Stimulation-OFF, Stimulation-ON Active Control
Device
Lead sponsor
Andrew Krystal
Other
Eligibility
22 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2035
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2023 · Synced Jul 22, 2026, 11:15 PM 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 28, 2026 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Not applicable Interventional

Diabetes Risk Reduction Through Eat, Walk, Sleep and Medication Therapy Management for Depressed Cambodians

NCT02502929
View directory record Official record
Conditions
Diabetes, Depression
Interventions
Social Services, Lifestyle, Lifestyle Plus Medication Therapy Management
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
35 Years to 75 Years
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
3
States / cities
Farmington, Connecticut • West Hartford, Connecticut • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Jul 22, 2026, 11:15 PM EDT
Not listed Not applicable Interventional

Randomized Controlled Trial Using Patient Reported Outcomes and Care Managers to Improve HIV Medication Adherence in Routine Clinical Care

NCT01505660
View directory record Official record
Conditions
HIV
Interventions
Care management
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 13, 2015 · Synced Jul 22, 2026, 11:15 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Does Antidepressant Use Blunt Adaptations to Exercise?

NCT03934723
View directory record Official record
Conditions
Depression, Depressive Disorder, Metabolic Syndrome
Interventions
Exercise
Behavioral
Lead sponsor
California State University, San Marcos
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
San Marcos, California
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Jul 22, 2026, 11:15 PM EDT
Terminated Not applicable Interventional

Lamotrigine in Treatment Resistant Depression in Adolescents

NCT00284791
View directory record Official record
Conditions
Adolescent Depression
Interventions
Lamotrigine (drug), Fluoxetine (drug), sertraline (drug)
Drug
Lead sponsor
MaineHealth
Other
Eligibility
13 Years to 18 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Jul 22, 2026, 11:15 PM EDT
Recruiting Not applicable Interventional

Closed-Loop Deep Brain Stimulation for Treatment-Resistant Bipolar Depression

NCT07127913
View directory record Official record
Conditions
Bipolar II Disorder, Bipolar II Disorder, Most Recent Episode Major Depressive
Interventions
Device: Stimulation-ON, Device: Stimulation-OFF, Device: Stimulation -ON Active Control
Device
Lead sponsor
Andrew Krystal
Other
Eligibility
22 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2035
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 16, 2025 · Synced Jul 22, 2026, 11:15 PM EDT
Terminated Phase 4 Interventional Results available

Pioglitazone for the Treatment of Bipolar Depression

NCT01717040
View directory record Official record
Conditions
Bipolar Disorder, Insulin Resistance
Interventions
Pioglitazone, Placebo
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 26, 2017 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Not applicable Interventional Results available

A Trial of SAMe for Treatment-Resistant Bipolar Depression

NCT00762268
View directory record Official record
Conditions
Bipolar Disorder, Depression, Bipolar Depression
Interventions
SAMe, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Jul 22, 2026, 11:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Intranasal Esketamine to Maintain the Antidepressant Response to IV Racemic Ketamine

NCT04856124
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Intranasal esketamine
Drug
Lead sponsor
Psych Atlanta
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Marietta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 22, 2021 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Phase 2Phase 3 Interventional

Biomarkers of Response to Ketamine in Depression: MRI and Blood Assays Before and After Open Label Intranasal Ketamine

NCT04216888
View directory record Official record
Conditions
Depressive Disorder, Treatment-Resistant
Interventions
Ketamine Hydrochloride
Drug
Lead sponsor
Dan Iosifescu
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Orangeburg, New York
Source: ClinicalTrials.gov public record
Updated Jan 21, 2021 · Synced Jul 22, 2026, 11:15 PM EDT
Active, not recruiting Not applicable Interventional Results available

Epidural Cortical Stimulation for Depression

NCT00565617
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Synergy, Epidural cortical stimulation
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
21 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2028
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Not applicable Interventional Results available

Neuroimaging in Patients Undergoing TMS for Depression

NCT02974296
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
transcranial magnetic stimulation
Device
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Phase 2 Interventional Results available

Reclaim Deep Brain Stimulation Clinical Study for Treatment-Resistant Depression

NCT00837486
View directory record Official record
Conditions
Depression
Interventions
Reclaim™ DBS System
Device
Lead sponsor
MedtronicNeuro
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
5
States / cities
Charlestown, Massachusetts • Cleveland, Ohio • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Jul 22, 2026, 11:15 PM EDT
Active, not recruiting No phase listed Observational

Assessing an EEG Biomarker of Response to TMS for Major Depression

NCT05008198
View directory record Official record
Conditions
Depression
Interventions
Transcranial Magnetic Stimulation
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
266 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
White River Junction, Vermont
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Jul 22, 2026, 11:15 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Low Dose Ketamine Infusion for the Treatment of Resistant Depression

NCT04283058
View directory record Official record
Conditions
Depression
Interventions
Ketamine
Drug
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 89 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2020 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Phase 1 Interventional Results available

Nonconvulsive Electrotherapy: a Proof-of-concept Trial

NCT01065597
View directory record Official record
Conditions
Depressive Disorder, Bipolar Disorder, Schizoaffective Disorder
Interventions
Nonconvulsive electrotherapy
Device
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Jul 22, 2026, 11:15 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 Jul 9, 2026 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Not applicable Interventional

Treatment Resistant Depression and Insomnia in Older Veterans

NCT02971150
View directory record Official record
Conditions
Treatment Resistant Depression, Insomnia
Interventions
Brief Behavioral Treatment for Insomnia
Behavioral
Lead sponsor
VA Pittsburgh Healthcare System
Federal
Eligibility
60 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Jul 22, 2026, 11:15 PM EDT
Terminated Phase 2 Interventional Results available

Proof-of-Concept Trial of CERC-501 Augmentation of Antidepressant Therapy in Treatment-Resistant Depression

NCT01913535
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
CERC-501, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
4
States / cities
Chicago, Illinois • Wichita, Kansas • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 11:15 PM EDT
Completed Phase 2 Interventional Results available

eIMPACT-DM Pilot Trial: Depression Treatment to Reduce Diabetes Risk

NCT04437485
View directory record Official record
Conditions
Depression, Major Depressive Disorder, Dysthymic Disorder, Depressive Symptoms, Type 2 Diabetes, PreDiabetes, Insulin Resistance
Interventions
Good Days Ahead (GDA), Problem Solving Treatment in Primary Care (PST-PC), Antidepressant Medications, Active Control
Behavioral · Drug · Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Nov 1, 2023 · Synced Jul 22, 2026, 11:15 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 12, 2017 · Synced Jul 22, 2026, 11:15 PM EDT
Recruiting Not applicable Interventional

The BEAR Program for Women With Trauma Who Have Suicidal Thoughts

NCT07346638
View directory record Official record
Conditions
Interpersonal Trauma, Depression, PTSD, Anxiety, Suicidal Ideations, Sexual Assault
Interventions
BEAR-SI
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jul 22, 2026, 11:15 PM EDT