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ClinicalTrials.gov 37 recruiting now later-stage tilt #66 of 28,707 conditions

Bipolar Disorder: later-stage trial registry

37 of 163 indexed Bipolar Disorder trials are currently recruiting, with more weight in Phase 3-4.

Corpus placement: #66 of 28,707 conditions by registered trial count.

163 US clinical trials · 37 currently recruiting · #66 of 28,707 conditions by registered trial count

Bipolar Disorder: 163 US clinical trials tracked, 37 recruiting.

Bipolar Disorder is the subject of 163 registered US clinical trials on ClinicalTrials.gov, 37 of them currently open to new participants. 45 are in Phase 3-4 (later-stage) and 15 in Phase 1-2 (earlier-stage). The most active sponsor is Massachusetts General Hospital, running 11 of these trials.

Enrollment posture brief

Registry condition bipolar-disorder

OPEN 37 | RECR 23% | LATE 45 | EARLY 15 | RANK #66 | SPON 11

Nearest open-share peer: Hypogonadism (23% recruiting · 22 trials)

Epilepsy47.6%Gastric Cancer45.3%Neoplasms31.3%Parkinson's Disease26.1%Bipolar Disorder (this)23%
Open-enrollment share among volume-matched conditions near Bipolar Disorder

Bipolar Disorder lists 37 open slots (23% of 163 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Bipolar Disorder on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Bipolar Disorder is recruiting below its size-band peers.

    37 of 163 indexed trials (22.7%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Bipolar Disorder trials is spread across many organizations.

    Massachusetts General Hospital accounts for 11 of 163 trials (6.7%). 73 distinct sponsors appear on at least one study for this condition label.

  3. Typical Bipolar Disorder enrolment sits around 75 participants.

    Median target enrolment is 75 among the 163 trials that report a genuine target (sentinel values excluded). 92 of those (56.4%) plan for fewer than 100 participants.

  4. Bipolar Disorder research is mostly interventional.

    133 interventional and 30 observational studies make up this index (81.6% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 13Phase 212Phase 323Phase 422

Open and recent trials

163 total, page 3 of 4

COMPLETED NA 60 participants

Disseminating Evidence-based Mood Disorder Chronic Care Models

University of Michigan

NCT01615458

COMPLETED NA 60 participants

A Pilot Study of Citicoline add-on Therapy in Patients With Bipolar Disorder or Major Depressive Disorder and Amphetamine Abuse or Dependence

University of Texas Southwestern Medical Center

NCT00377299

COMPLETED NA 60 participants

Acute Alcohol Response In Bipolar Disorder: a fMRI Study

University of Texas at Austin

NCT04063384

COMPLETED Phase 4 60 participants

A Study of Risperidone Monotherapy in Bipolar Anxiety

University of South Florida

NCT00167479

COMPLETED NA 60 participants

Improving Care for Patients With Bipolar Disorder

University of Michigan

NCT00222755

COMPLETED NA 59 participants

Cornerstone Program for Transition-Age Youth Study Protocol for a Randomized Controlled Trial

New York University

NCT02696109

COMPLETED Phase 1 58 participants

Evaluating the Effectiveness of Family-Focused Psychoeducation in Treating Adolescents With Bipolar Disorder

University of California, Los Angeles

NCT00571402

COMPLETED 57 participants

Insulin Resistance in Patients With Major Depression

Stanford University

NCT01106313

COMPLETED NA 56 participants

In-person vs. Remote Wellness Support

The University of Texas Health Science Center at San Antonio

NCT04526067

COMPLETED NA 56 participants

Neuromodulation for Enhancement of Emotion Regulation in Bipolar Mood Disorders

Massachusetts General Hospital

NCT04284267

COMPLETED NA 55 participants

Life Goals Behavioral Change to Improve Outcomes for Veterans With Serious Mental Illness

VA Office of Research and Development

NCT01244854

COMPLETED Phase 2 54 participants

Imaging GABAergic/Glutamatergic Drugs in Bipolar Alcoholics Alcoholics

Medical University of South Carolina

NCT03220776

COMPLETED Phase 3 54 participants

Double-blind, Placebo-Controlled Divalproex Sodium ER in Bipolar I or Bipolar II Depression

University Hospitals Cleveland Medical Center

NCT00194116

COMPLETED NA 54 participants

Effectiveness of Cognitive Behavioral Therapy for Treating Depression in People With Bipolar I Disorder

Massachusetts General Hospital

NCT00595387

COMPLETED NA 52 participants

Early Family-Focused Treatment for Youth at Risk for Bipolar Disorder

University of California, Los Angeles

NCT00943085

COMPLETED Phase 3 52 participants

Sleep Disturbance and Bipolar Disorder

University of California, Berkeley

NCT00993850

COMPLETED 50 participants

Effectiveness of Two Self Assessment Tools: KIOS-Bipolar or eMoods

The University of Texas Health Science Center at San Antonio

NCT02418910

COMPLETED NA 50 participants

Modeling Mood Course to Detect Markers of Effective Adaptive Interventions

University of Wisconsin, Madison

NCT03358238

COMPLETED NA 50 participants

Omega-3 Dietary Supplements in Schizophrenia

Delbert Robinson

NCT01786239

COMPLETED 50 participants

Pediatric Bipolar Disorder Study at UCLA

University of California, Los Angeles

NCT00961935

COMPLETED Phase 4 49 participants

Ziprasidone in Bipolar Disorder With Comorbid Lifetime Panic or Generalized Anxiety Disorder(GAD)

VA Palo Alto Health Care System

NCT01172652

COMPLETED NA 49 participants

Effectiveness of a Mobile Texting Intervention for People With Serious Mental Illness

University of Washington

NCT03062267

COMPLETED Phase 4 46 participants

FMRI Study of Brain Response Before and After Lithium Treatment in People With Bipolar Disorder

Indiana University

NCT00596622

COMPLETED Phase 3 46 participants

Placebo Controlled Trial of Valproate and Risperidone in Young Children With Bipolar Disorders

Children's Hospital Medical Center, Cincinnati

NCT00221403

COMPLETED 45 participants

Rostral Dorsal Cingulum Bundle Connectivity in Patients With Bipolar Disorder

University Hospitals Cleveland Medical Center

NCT02655978

COMPLETED 44 participants

Antipsychotics and Blood Vessel Function

Jess G. Fiedorowicz

NCT00585273

COMPLETED NA 43 participants

Customized Medication Adherence Enhancement for Adults With Bipolar Disorder

University Hospitals Cleveland Medical Center

NCT00830310

COMPLETED Phase 2 42 participants

Clozapine for Treatment-Resistant Mania

National Institute of Mental Health (NIMH)

NCT00029458

COMPLETED Phase 4 41 participants

Iloperidone in Mixed States of Bipolar Disorder

The University of Texas Health Science Center at San Antonio

NCT02413918

COMPLETED 40 participants

Understanding Treatment Adherence Among Individuals With Rapid Cycling Bipolar Disorder

Case Western Reserve University

NCT00183703

COMPLETED Phase 4 40 participants

Prediction of Clinical Response to SSRI Treatment in Bipolar Disorder Using Serotonin 1A Receptor PET Imaging

New York State Psychiatric Institute

NCT02473250

COMPLETED Phase 3 40 participants

Study of Quetiapine Monotherapy in Ambulatory Bipolar Spectrum Disorder With Moderate-to-Severe Hypomanic Symptoms or Mild Manic Symptoms

Lindner Center of HOPE

NCT00277667

COMPLETED NA 40 participants

Peer-delivered and Technology-Assisted Integrated Illness Management and Recovery

Dartmouth-Hitchcock Medical Center

NCT04481737

COMPLETED NA 38 participants

Medication Adherence in Hypertensive Individuals With Bipolar Disorder

Case Western Reserve University

NCT02983877

COMPLETED NA 36 participants

Interpersonal and Social Rhythm Therapy for Adolescents With Bipolar Disorder

University of Washington

NCT00576355

COMPLETED NA 36 participants

Improving Adherence in Adolescents and Young Adults With Bipolar Disorder

Case Western Reserve University

NCT04348604

COMPLETED NA 35 participants

Mindfulness Based Cognitive Therapy for Youth With Anxiety at Risk for Bipolar Disorder

University of Cincinnati

NCT02090595

COMPLETED Phase 4 33 participants

Equetro for the Treatment of Mania in Children Ages 6-12 With Bipolar Disorder

Massachusetts General Hospital

NCT00181870

COMPLETED NA 33 participants

Vitamin D Supplementation for Bipolar Depression

University of Massachusetts, Worcester

NCT01884844

COMPLETED 32 participants

Self Focus in Bipolar Disorder: A Functional Magnetic Resonance Imaging (fMRI) Study

Massachusetts General Hospital

NCT02253225

COMPLETED Phase 4 32 participants

12- Week Open Label Treatment of Refractory Bipolar Depression

The University of Texas Health Science Center at San Antonio

NCT00223496

COMPLETED NA 30 participants

Bioequivalency Study of 300 mg Lithium Carbonate Under Fed Conditions

Roxane Laboratories

NCT00602394

COMPLETED Phase 4 30 participants

A Double-Blind, Placebo-Controlled Study of Galantamine to Improve Cognitive Dysfunction in Bipolar Disorder

Cambridge Health Alliance

NCT00195845

COMPLETED NA 30 participants

Proactive Psychiatry Consultation for Patients With Cancer and Severe Mental Illness

Massachusetts General Hospital

NCT02594696

COMPLETED Phase 2 30 participants

Acupuncture as a Supplemental Treatment for Bipolar Depression

University of Texas Southwestern Medical Center

NCT00071669

COMPLETED NA 30 participants

Functional Remediation for Bipolar Disorder

University of Michigan

NCT03403179

COMPLETED 30 participants

Lamotrigine in the Treatment of Bipolar Disorder in Women of Reproductive Age

Stanford University

NCT00238576

COMPLETED NA 30 participants

Bioequivalency Study of 450 mg Lithium Carbonate Under Fasting Conditions

Roxane Laboratories

NCT00602381

COMPLETED NA 29 participants

Bioequivalency Study of 300 mg Lithium Carbonate Under Fasting Conditions

Roxane Laboratories

NCT00601536

COMPLETED Phase 4 28 participants

Lamictal As Add on Treatment in Mixed States of Bipolar Disorder

The University of Texas Health Science Center at San Antonio

NCT00223509

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Phase Distribution

PhaseTrial count
Phase 1 3
Phase 2 12
Phase 3 23
Phase 4 22

Named interventions

Most-linked intervention names on Bipolar Disorder records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Placebo Drug
19 trials
Lithium Drug
9 trials
Quetiapine Drug
4 trials
Aripiprazole Drug
3 trials
Valproate Drug
3 trials
Lamotrigine Drug
3 trials
Placebo Other
3 trials
paroxetine Drug
2 trials

US sites by state

Facility locations filed on Bipolar Disorder trials. A trial with sites in several states counts in each.

California 35 trials
Massachusetts 32 trials
Texas 26 trials
New York 24 trials
Ohio 23 trials
Maryland 18 trials
Florida 18 trials
Pennsylvania 17 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Bipolar Disorder page

163 registered trials, 37 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Bipolar Disorder condition card totals 163 registered trials; most-linked intervention Placebo; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.