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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
Terminated Early Phase 1 Interventional Results available

Nitrous TRD Bipolar Depression

NCT02757521
View directory record Official record
Conditions
Treatment- Resistant Bipolar Disorder, Bipolar Disorder, Bipolar Depressive Disorder
Interventions
Nitrous Oxide, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Sep 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 AM EDT
Completed Not applicable Interventional Results available

Pilot Accelerated Theta Burst in Treatment-Resistant Bipolar Depression

NCT03953417
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 Sep 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 AM EDT
Recruiting Not applicable Interventional

Magnetic Seizure Therapy in Bipolar Depression (MST-BpD) and Treatment Resistant Depression (MST-TRD)

NCT04080778
View directory record Official record
Conditions
Bipolar Disorder
Interventions
magnetic seizure therapy (MST), electroconvulsive therapy (ECT)
Device
Lead sponsor
Joao L. DeQuevedo
Other
Eligibility
22 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Sep 20, 2026, 9:55 AM EDT
Terminated Phase 4 Interventional Results available

Treatment Study of Bipolar Depression

NCT00947791
View directory record Official record
Conditions
Bipolar Disorder
Interventions
ketamine, midazolam
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
21 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Sep 20, 2026, 9:55 AM EDT
Completed No phase listed Observational

The Treatment of Children and Adolescents With Treatment-Resistant Depression

NCT00029640
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 AM EDT
Completed Not applicable Interventional

Implementation Trial of Evidence Based Practices for Mood Disorders

NCT02150577
View directory record Official record
Conditions
Bipolar Disorder, Treatment Resistant Depression
Interventions
Evidence Based Quality Improvement
Behavioral
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 100 Years
Enrollment
291 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
6
States / cities
Eudora, Arkansas • Huntsville, Arkansas • Marianna, Arkansas + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2017 · Synced Sep 20, 2026, 9:55 AM EDT
Terminated Phase 2Phase 3 Interventional

Intranasal Ketamine In the Treatment of Pediatric Bipolar Disorder

NCT01504659
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Ketamine hydrochloride injection, Flat tonic water (e.g., Canada Dry Tonic Water)
Drug
Lead sponsor
Juvenile Bipolar Research Foundation
Other
Eligibility
6 Years to 12 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
4
States / cities
Not Predetermined, Connecticut • Maplewood, New Jersey • Not Predetermined, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Sep 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 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 20, 2026, 9:55 AM EDT
Active, not recruiting Not applicable Interventional

Accelerated Intermittent Theta-Burst Stimulation (aiTBS) in Treatment-Resistant Depression of Bipolar II Disorder

NCT05849402
View directory record Official record
Conditions
Bipolar II Disorder, Most Recent Episode Major Depressive, Current Depressive Episode, Treatment Resistant Depression
Interventions
Active Comparator: Active aiTBS, Sham Comparator: Sham aiTBS
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 20, 2026, 9:55 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 20, 2026, 9:55 AM EDT
Not listed Phase 2 Interventional

The Safety and Efficacy of Psilocybin in Participants With Type 2 Bipolar Disorder (BP-II) Depression.

NCT04433845
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Psilocybin
Drug
Lead sponsor
Sheppard Pratt Health System
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 24, 2022 · Synced Sep 20, 2026, 9:55 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 20, 2026, 9:55 AM EDT