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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Treatment Resistant Bipolar Depression Clear all
Completed Phase 2 Interventional

FMRI of Patients Receiving IV Ketamine for Treatment Resistant Bipolar Depression

NCT06620042
View directory record Official record
Conditions
Bipolar Depression, Treatment Resistant Bipolar Depression
Interventions
Ketamine, Functional magnetic resonance imaging (fMRI)
Drug · Other
Lead sponsor
Brian Barnett
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Cleveland, Ohio • Ohio City, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 25, 2026, 5:08 AM EDT
Recruiting Phase 1 Interventional

Adjunctive Allogeneic Mesenchymal Stem Cells for Treatment-resistant Bipolar Depression

NCT03522545
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 Sep 25, 2026, 5:08 AM EDT
Terminated Not applicable Interventional Results available

Long Term Follow-up of Deep Brain Stimulation for Treatment-Resistant Depression

NCT03360942
View directory record Official record
Conditions
Treatment Resistant Depression, Depressive Disorder, Treatment-Resistant, Depression, Bipolar
Interventions
SCC DBS
Device
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Dec 11, 2024 · Synced Sep 25, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Deep Brain Stimulation for Treatment Resistant Depression

NCT00367003
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Deep Brain Stimulation
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 70 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2024
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 25, 2026, 5:08 AM EDT
Recruiting Not applicable Interventional

Deep Brain Stimulation of Treatment-Resistant Bipolar Depression

NCT06599099
View directory record Official record
Conditions
Bipolar Depression
Interventions
Medtronic Percept RC System, One Month Blinded Discontinuation Period
Device · Behavioral
Lead sponsor
Wayne Goodman MD
Other
Eligibility
22 Years to 64 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
4
States / cities
Boston, Massachusetts • Houston, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Sep 25, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Intensive TMS for Bipolar Depression

NCT05228457
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 Sep 25, 2026, 5:08 AM EDT
Completed Phase 4 Interventional Results available

Pioglitazone for the Treatment of Bipolar Disorder and Comorbid Metabolic Syndrome or Insulin Resistance

NCT00835120
View directory record Official record
Conditions
Metabolic Syndrome, Bipolar Depression, Insulin Resistance
Interventions
Pioglitazone
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 25, 2017 · Synced Sep 25, 2026, 5:08 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 Aug 13, 2026 · Synced Sep 25, 2026, 5:08 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 23, 2020 · Synced Sep 25, 2026, 5:08 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 10, 2017 · Synced Sep 25, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Deep Brain Stimulation (DBS) for Treatment-Resistant Depression (TRD)

NCT01898429
View directory record Official record
Conditions
Treatment Resistant Depression, Depressive Disorder, Treatment-Resistant, Depression, Bipolar
Interventions
SCC DBS
Device
Lead sponsor
Paul Holtzheimer
Other
Eligibility
22 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jul 24, 2019 · Synced Sep 25, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Repetitive Transcranial Magnetic Stimulation (rTMS) for Treatment Resistant Bipolar Depression

NCT00186485
View directory record Official record
Conditions
Bipolar Disorder
Interventions
MagStim
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Sep 25, 2026, 5:08 AM EDT
Active, not recruiting Not applicable Interventional

Transcranial Electric Stimulation Therapy (TEST) for Treatment Resistant Depression (TRD)

NCT05172271
View directory record Official record
Conditions
Major Depressive Disorder, Bipolar Disorder, Unipolar Major Depression
Interventions
MagPro TMS Stimulator and coil, Thymatron(R) System IV, Magnetic Resonance Imaging Scanner, ECT device without stimulation
Device · Other
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
25 Years to 64 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 25, 2026, 5:08 AM EDT
Completed Phase 4 Interventional Results available

Study Comparing Outcomes for Patients With Treatment Resistant Depression Who Receive VNS Therapy at Different Doses

NCT00305565
View directory record Official record
Conditions
Depression
Interventions
VNS Therapy
Device
Lead sponsor
Cyberonics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
331 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
26
States / cities
Tucson, Arizona • Sacramento, California • Marietta, Georgia + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2014 · Synced Sep 25, 2026, 5:08 AM EDT
Withdrawn Phase 2 Interventional

Effect of Lithium Versus Placebo in Adults With Treatment-Resistant Depression Who Are Receiving Ketamine

NCT03290963
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Lithium, Placebo, Ketamine
Drug
Lead sponsor
William V. Bobo, M.D.
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 15, 2018 · Synced Sep 25, 2026, 5:08 AM 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 Sep 25, 2026, 5:08 AM 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 Sep 25, 2026, 5:08 AM EDT
Completed Phase 2 Interventional

Clinical Trial of Felbamate for Treatment-Resistant Bipolar Depression

NCT00034229
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Felbamate
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 25, 2026, 5:08 AM EDT
Not listed Not applicable Interventional

Impact of a Ketogenic Diet on Metabolic and Psychiatric Health in Patients With Bipolar Illness

NCT05705063
View directory record Official record
Conditions
Bipolar Disorder I, Bipolar II Disorder, Bipolar I Disorder, Bipolar Disorder, Bipolar Depression, Bipolar and Related Disorders, Bipolar Disorder, Type 1, Bipolar Disorder, Type 2, Bipolar Disorder, Mixed, Obesity, Metabolic Syndrome, Ketogenic Dieting, Weight Gain, Brain Metabolic Disorder, Psychotropic Agents Causing Adverse Effects in Therapeutic Use
Interventions
LCHF Ketogenic Diet
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jan 29, 2023 · Synced Sep 25, 2026, 5:08 AM EDT
Recruiting No phase listed Observational

University of Iowa Interventional Psychiatry Service Patient Registry

NCT04480918
View directory record Official record
Conditions
Treatment Resistant Depression, Major Depressive Episode, Major Depression, Major Depressive Disorder, Bipolar Disorder, Bipolar Depression, Obsessive-Compulsive Disorder
Interventions
Electroconvulsive Therapy (ECT), Transcranial Magnetic Stimulation (TMS), Ketamine, Esketamine, Deep Transcranial Magnetic Stimulation (dTMS)
Device · Drug
Lead sponsor
Mark Niciu
Other
Eligibility
18 Years to 99 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2050
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Sep 25, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Insulin Resistance in Patients With Mood Disorder

NCT00242619
View directory record Official record
Conditions
Depression, Bipolar Disorder, Insulin Resistance
Interventions
rosiglitazone
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2017 · Synced Sep 25, 2026, 5:08 AM EDT
Active, not recruiting Early Phase 1 Interventional

Ketamine Associated ACC GABA and Glutamate Change and Depression Remission:

NCT03573349
View directory record Official record
Conditions
Major Depressive Disorder, Treatment Resistant Depression, Bipolar Depression
Interventions
Ketamine
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 25, 2026, 5:08 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Studying the Health of Asians to Advance Knowledge, Treatments, and Interventions for Depression

NCT06002204
View directory record Official record
Conditions
Depression, Treatment Resistant Depression, Mood Disorders, Bipolar Disorder, Mental Disorders, Bipolar and Related Disorders
Interventions
Observational Study
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
10 Years and older
Enrollment
6,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2035
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Sep 25, 2026, 5:08 AM 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 Sep 25, 2026, 5:08 AM EDT