DrugEvidence

Drugs / Olanzapine

Olanzapine

Drug

Olanzapine is an atypical antipsychotic used primarily for schizophrenia and bipolar disorder, with additional approved combination indications. It is available in oral and intramuscular formulations and is marketed under the trade name Zyprexa among others. It was approved for medical use in the United States in 1996.

Trials
391
Recruiting
22
Completed
275
With results
99

Last revised

Pipeline

Phase by status

PhaseRecruitingNot yetBy invitationActiveCompletedTerminatedWithdrawnSuspendedUnknownAvailableTotal
Early Phase 1 111 3
Phase 1 3321 36
Phase 1/2 141 6
Phase 2 311264319 48
Phase 2/3 511 7
Phase 3 122273847 108
Phase 4 21193846 115
Not applicable 3131418 48
Unknown 1102151 20

Trials started per year

2021
1
2022
14
2023
13
2024
18
2025
7
2026
8

Conditions studied, by phase

ConditionEarly Phase 1Phase 1Phase 1/2Phase 2Phase 2/3Phase 3Phase 4Not applicableUnknownTotal
Schizophrenia 11332114361209 172
Psychotic Disorders 4141228102 61
Bipolar Disorder 1112735 47
Vomiting 11214212 32
Nausea 9282 21
Diabetes Mellitus 1631 11
Insulin Resistance 1451 11
Neoplasms 315 9
Psychomotor Agitation 11232 9
Anorexia Nervosa 21221 8

Most active sponsors

#SponsorTrialsPhase 3
1Eli Lilly and Company3815
2Organon and Co1514
3Alkermes, Inc.94
4H. Lundbeck A/S65
5Northwell Health60
6Washington University School of Medicine61
7National Institute of Mental Health (NIMH)50
8New York State Psychiatric Institute50
9Otsuka Pharmaceutical Development & Commercialization, Inc.52
10Augusta University43

Most studied interventions

#InterventionTrials
1Olanzapine391
2Risperidone96
3Quetiapine Fumarate61
4Aripiprazole57
5ziprasidone39
6Haloperidol31
7Paliperidone Palmitate24
8asenapine21
9Clozapine19
10Dexamethasone16

Evidence

Results reported
36%99 of 275 completed
Published
14.9%41 of 275 completed
Primary endpoint met
46.8%44 of 94 analyses
Median months to report
13

Documents disclosed

Protocol available
34
Statistical analysis plan
31
PubMed citations
91

Trial profile

Median enrollment
106
Median duration
29months
Countries
61
Study sites
3317

Who is enrolled

Adults
377
Children
61
Older adults
250
Healthy volunteers
64

Median enrollment by phase

Early Phase 1
31
Phase 1
32
Phase 1/2
132
Phase 2
87
Phase 2/3
32
Phase 3
222
Phase 4
100
Not applicable
90
Unknown
200

Where trials run

United States
177
China
41
Canada
32
Germany
25
Russia
22
Spain
17
India
14
Brazil
12
France
12
Puerto Rico
12

Busiest cities

#CityCountryTrials
1New YorkUnited States39
2San DiegoUnited States38
3ChicagoUnited States35
4AtlantaUnited States33
5St LouisUnited States31
6AustinUnited States25
7Garden GroveUnited States23
8PhiladelphiaUnited States23
9Little RockUnited States21
10HoustonUnited States20

Terminations

Terminated
28
Withdrawn
14
Suspended
1
Stopped for recruitment
4.1%16 of 391 trials

Stated reasons

Other / unclear
16
Recruitment
16
Funding
4
Lack of efficacy
3
Business decision
1
COVID-19
1
Regulatory
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
NCT05403580 Withdrawn Withdrawn Closed due to slow accrual 2024-12-31
NCT04518319 Suspended Suspended The COVID-19 affects the recruitment of patients. 2024-11-30
NCT02088060 Terminated Terminated Following the expiry of the original research grant, no follow-up financing could be provided to complete the study. 2024-09-16
NCT06133114 Withdrawn Withdrawn Enrollment was discontinued after limited accrual prevented feasible completion of the trial. 2024-03-13
NCT04503668 Terminated Terminated Lack of Patient Population 2024-03-11
NCT05179772 Withdrawn Withdrawn NIDA has advised us to terminate this protocol due to the difficulties in finding appropriate subjects. 2023-01-30
NCT03960151 Withdrawn Withdrawn Compound was sold by funder and development ceased. 2022-03-31
NCT02380118 Terminated Terminated Primary endpoint reached based on data projection from interim analysis. 2019-09-30
NCT01625923 Terminated Terminated Inadequate recruitment numbers 2019-06-30
NCT02893371 Terminated Terminated Per PI, this study is not a clinical trial and was inadvertently entered in the system 2019-06-30

Trial records