DrugEvidence

Diseases / Bipolar Disorder

Bipolar Disorder

Disease

Bipolar disorder is a mental illness characterized by episodes of mood elevation (mania or hypomania) and depression that can significantly affect functioning.

Trials
1651
Recruiting
161
Completed
1041
With results
354

Last revised

Pipeline

Phase by status

PhaseRecruitingNot yetBy invitationActiveCompletedTerminatedWithdrawnSuspendedUnknownTotal
Early Phase 1 24222 12
Phase 1 3138912 54
Phase 1/2 21324 21
Phase 2 1213871884 133
Phase 2/3 1114312 22
Phase 3 1011116218518 207
Phase 4 10311642312118 232
Not applicable 83215183612911397 628
Unknown 401169198137157 342

Trials started per year

2021
13
2022
80
2023
58
2024
80
2025
85
2026
47
2027
2
2028
1

Conditions studied, by phase

ConditionEarly Phase 1Phase 1Phase 1/2Phase 2Phase 2/3Phase 3Phase 4Not applicableUnknownTotal
Bipolar Disorder 12542113322207232628342 1651
Schizophrenia 1141121152718681 338
Depression 375427243910657 290
Depressive Disorder, Major 563133112010876 245
Psychotic Disorders 27182142611036 215
Mania 2117134271715 114
Mood Disorders 1119663637 106
Mental Disorders 9326422 100
Depressive Disorder 492373224 81
Anxiety Disorders 1133252717 59

Most active sponsors

#SponsorTrialsPhase 3
1Massachusetts General Hospital632
2AstraZeneca4716
3National Institute of Mental Health (NIMH)412
4Mclean Hospital331
5Stanford University231
6University of Pittsburgh224
7University of Texas Southwestern Medical Center223
8Johnson & Johnson Pharmaceutical Research & Development, L.L.C.2116
9University Hospitals Cleveland Medical Center219
10VA Office of Research and Development201

Most studied interventions

#InterventionTrials
1Quetiapine Fumarate76
2Lithium64
3Valproic Acid56
4Lamotrigine49
5Olanzapine47
6Aripiprazole43
7Risperidone40
8Lithium Carbonate37
9Therapeutics35
10ziprasidone35

Evidence

Results reported
34%354 of 1041 completed
Published
11.9%124 of 1041 completed
Primary endpoint met
37.8%146 of 386 analyses
Median months to report
17

Documents disclosed

Protocol available
145
Statistical analysis plan
138
PubMed citations
364

Trial profile

Median enrollment
75
Median duration
34months
Countries
75
Study sites
5976

Who is enrolled

Adults
1559
Children
295
Older adults
1184
Healthy volunteers
311

Median enrollment by phase

Early Phase 1
8
Phase 1
30
Phase 1/2
49
Phase 2
51
Phase 2/3
74
Phase 3
158
Phase 4
50
Not applicable
64
Unknown
150

Where trials run

United States
831
Canada
133
France
96
China
73
Spain
50
Denmark
48
United Kingdom
44
Turkey (Türkiye)
41
Germany
40
Brazil
34

Busiest cities

#CityCountryTrials
1New YorkUnited States90
2ClevelandUnited States80
3BostonUnited States79
4CincinnatiUnited States77
5HoustonUnited States68
6San DiegoUnited States64
7DallasUnited States62
8ChicagoUnited States59
9PhiladelphiaUnited States58
10TorontoCanada58

Terminations

Terminated
115
Withdrawn
48
Suspended
7
Stopped for recruitment
2.5%42 of 1651 trials

Stated reasons

Other / unclear
82
Recruitment
42
Funding
31
COVID-19
6
Regulatory
4
Business decision
3
Lack of efficacy
1
Safety
1

Reasons are grouped from the sponsor's own wording with a rule-based classifier; the original text is shown below.

Recently stopped

TrialStatusStated reasonStopped
NCT04031469 Suspended Suspended Administrative 2030-12-10
NCT04211428 Withdrawn Withdrawn Company shifted focus 2030-07-31
NCT05340686 Suspended Suspended Difficulties recruiting 2029-04-20
NCT04640636 Suspended Suspended The U.S. Department of Health and Human Services (HHS) Office of Human Research Protections (OHRP) issued an FWA restriction on NYSPI research that also included a pause of human subjects research as of June 23, 2023. 2028-03-31
NCT06384521 Withdrawn Withdrawn No funding obtained 2027-09-30
NCT05060549 Withdrawn Withdrawn Funding decision 2027-05-01
NCT06129500 Suspended Suspended Paused due to change in staffing arrangements 2027-01-24
NCT06733558 Withdrawn Withdrawn NIGMS, the funding agency, does not consider this study a clinical trial and they asked to remove from the system. 2026-07-31
NCT02719392 Withdrawn Withdrawn Study did not receive funding and was never carried out. 2026-07-20
NCT05974527 Withdrawn Withdrawn Study did not start - due to funding issues prior to IRB approval 2026-06-30

Trial records