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Showing 1–24 of 58 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Bipolar II Depression Clear all
Recruiting Phase 2 Interventional

A Study to Assess Adverse Events and Change in Disease Activity of Oral Icalcaprant in Adult Participants With Bipolar I or II Disorder

NCT06696755
View directory record Official record
Conditions
Bipolar I Disorder, Bipolar II Disorder
Interventions
Icalcaprant, Placebo for Icalcaprant
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
33
States / cities
Huntsville, Alabama • Chandler, Arizona • Tucson, Arizona + 29 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 4 Interventional

Relapse Prevention for Bipolar Type-II Disorder

NCT00044616
View directory record Official record
Conditions
Bipolar Disorder, Depression
Interventions
Fluoxetine, Lithium
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 100 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Jul 22, 2026, 4:59 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Withdrawn Phase 2 Interventional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 Jul 22, 2026, 4:59 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 Jul 22, 2026, 4:59 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Treatment for Bipolar Depression: Acute & Prophylactic Efficacy With Citalopram

NCT00562861
View directory record Official record
Conditions
Bipolar Disorder, Bipolar Depression
Interventions
citalopram + mood stabilizer, placebo + mood stabilizer
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 23, 2017 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 4 Interventional

A Preliminary Study of the Effectiveness and Tolerability of Aripiprazole in Bipolar Depression

NCT00363337
View directory record Official record
Conditions
Bipolar Depression
Interventions
aripiprazole
Drug
Lead sponsor
Lindner Center of HOPE
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Jul 22, 2026, 4:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Microbiome of Depression & Treatment Response to Citalopram

NCT02330068
View directory record Official record
Conditions
Major Depressive Disorder, Bipolar I and Bipolar II
Interventions
citalopram
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 20, 2018 · Synced Jul 22, 2026, 4:59 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Adjunctive Lisdexamfetamine (LDX) in Bipolar Depression

NCT01131559
View directory record Official record
Conditions
Bipolar, Depression
Interventions
Lisdexamfetamine, Placebo control
Drug
Lead sponsor
Lindner Center of HOPE
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Mason, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 4, 2014 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 3 Interventional Results available

Lumateperone Monotherapy for the Treatment of Bipolar Depression Conducted Globally

NCT03249376
View directory record Official record
Conditions
Bipolar Depression
Interventions
Lumateperone, Placebo
Drug · Other
Lead sponsor
Intra-Cellular Therapies, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
381 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
14
States / cities
Birmingham, Alabama • Sherman Oaks, California • Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2022 · Synced Jul 22, 2026, 4:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Lithium Effects on the Brain's Functional and Structural Connectome in the Treatment of Bipolar Disorder

NCT03336918
View directory record Official record
Conditions
Bipolar Disorder, Bipolar I Depression, Bipolar II Depression, Bipolar Depression, Depression, Major Depressive Episode
Interventions
Lithium
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2025
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Jul 22, 2026, 4:59 AM EDT
Active, not recruiting Phase 2 Interventional

Psilocybin Therapy for Depression in Bipolar II Disorder

NCT05065294
View directory record Official record
Conditions
Bipolar II Disorder
Interventions
Psilocybin therapy
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 24, 2024 · Synced Jul 22, 2026, 4:59 AM EDT
Withdrawn Phase 2 Interventional

rTMS for Treatment of Depressed Phase of Bipolar Disorder Type II

NCT00447096
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Repetitive Transcranial Magnetic Stimulation (rTMS)
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 8, 2016 · Synced Jul 22, 2026, 4:59 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 Jul 22, 2026, 4:59 AM EDT
Completed Phase 2 Interventional

A Study to Assess the Safety, Tolerability and Efficacy of RG2417 in Bipolar I Depression

NCT00812058
View directory record Official record
Conditions
Bipolar I Depression
Interventions
RG2417, Placebo
Drug
Lead sponsor
Repligen Corporation
Industry
Eligibility
18 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
36
States / cities
Birmingham, Alabama • Little Rock, Arkansas • San Diego, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2011 · Synced Jul 22, 2026, 4:59 AM EDT
Recruiting Phase 2 Interventional

Acceptability & Safety of Two Sequential Doses of Psilocybin in Bipolar Disorder II Depression and Suicidality

NCT06706232
View directory record Official record
Conditions
Bipolar II Disorder, Depression, Bipolar, Suicidality
Interventions
Psilocybin, Therapeutic Support
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
25 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 17, 2025 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Psychotherapy for Bipolar II Depression, Pilot Study, Phase II

NCT00411463
View directory record Official record
Conditions
Bipolar II Disorder
Interventions
Interpersonal and Social Rhythm Therapy (IPSRT-BPII), Seroquel
Behavioral · Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 2 Interventional

To Evaluate the Effects of NMRA-335140 on Symptoms of Major Depression in Participants With Bipolar II Disorder.

NCT06429722
View directory record Official record
Conditions
Major Depressive Episode Associated With Bipolar II Disorder
Interventions
NMRA-335140 80 mg, Placebo
Drug
Lead sponsor
Neumora Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
21
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Garden Grove, California + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 4 Interventional

Antidepressant Therapy for Bipolar II Major Depression

NCT00641927
View directory record Official record
Conditions
Bipolar Type II Disorder
Interventions
Venlafaxine, Lithium Carbonate
Drug
Lead sponsor
Stanley Medical Research Institute
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 23, 2008 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 4 Interventional Results available

Antidepressant Therapy in Treating Bipolar Type II Major Depression

NCT00602537
View directory record Official record
Conditions
Bipolar Disorder, Depression
Interventions
Venlafaxine, Lithium Carbonate
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 24, 2017 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 1 Interventional

A Study of SEP-380135 in Adults With Schizophrenia or Major Depressive Episode

NCT07549581
View directory record Official record
Conditions
Schizophrenia, Major Depressive Disorder (MDD), Bipolar Disorder
Interventions
SEP-380135, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Los Alamitos, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jul 22, 2026, 4:59 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 Jul 22, 2026, 4:59 AM EDT
Completed Phase 3 Interventional

Acute Treatment of Bipolar II Depression

NCT00074776
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Lithium, Lamotrigine
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 55 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 22, 2012 · Synced Jul 22, 2026, 4:59 AM EDT
Completed Phase 4 Interventional Results available

Acute Psychotherapy for Bipolar II Depression

NCT01133821
View directory record Official record
Conditions
Bipolar Disorder, Depression
Interventions
IPSRT plus placebo (IPSRT-PLA), IPSRT plus quetiapine
Drug
Lead sponsor
Holly Swartz
Other
Eligibility
18 Years to 65 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2018 · Synced Jul 22, 2026, 4:59 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Psychiatric Genotype/Phenotype Project Repository

NCT00762866
View directory record Official record
Conditions
Depressive Disorder, Major, Bipolar Disorder, Psychotic Disorders
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
16 Years to 65 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Jul 22, 2026, 4:59 AM EDT