Exercise and Olanzapine-samidorphan
A Proof of Concept Study of Time Limited Exercise Plus Olanzapine-samidorphan for the Prevention of Early Weight Gain
1 other identifier
interventional
30
1 country
1
Brief Summary
This is a single site trial in 30 patients with schizophrenia, schizoaffective, or bipolar I/II/NOS disorder in which all participants will receive eight weeks of olanzapine and samidorphan (Olz/Sam) plus four weeks of aerobic exercise.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Jun 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 14, 2024
CompletedFirst Posted
Study publicly available on registry
December 18, 2024
CompletedStudy Start
First participant enrolled
June 26, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2027
July 11, 2025
May 1, 2025
1.8 years
December 14, 2024
July 8, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Weight
Body weight
4 weeks
Secondary Outcomes (1)
Weight
8 weeks
Study Arms (1)
olanzapine-samidorphan plus exercise
EXPERIMENTALInterventions
8 weeks of open label Olanzapine-samidorphan + 4 weeks of aerobic exercise
Eligibility Criteria
You may qualify if:
- Age between 18-65, inclusive at Visit 1.
- DSM-V diagnosis of schizophrenia or schizoaffective or Bipolar I/II/NOS disorder at Visit 1.
- Body Mass Index (BMI) of 18.0-40.0 kg/m2, inclusive, at Visits 1 and 2.
- Willing to provide informed consent at Visit 1.
- Medically and psychiatrically stable for study participation at Visit 1.
- Responsive to an antipsychotic treatment (other than clozapine) in the past 5 years prior to Visit 1.
- Can benefit from participation in this study and has a reason to participate, such as inadequate efficacy on current treatment, side effects on current treatment, desire to start olanzapine-samidorphan or try structured exercise program (assessed at Visit 1).
- Maintained a stable body weight (change \< 5%) for at least 3 months prior to Visit 1.
- Willing to use qualified methods of contraception (listed in section 5.3) for the study duration (for women of childbearing potential only) (assessed at Visit 1 and Visit 2).
You may not qualify if:
- Positive drug screen for opioids, phencyclidine, amphetamine/ methamphetamine, or cocaine at Visit 1 or Visit 2.
- Diagnosis of moderate or severe substance use disorder, anorexia nervosa, bulimia, binge eating disorder or any other clinically significant eating disorder at Visit 1.
- EKG abnormality that is clinically significant including a QT interval \> 450 msec for men and \> 470 msec for women, as corrected by the Fridericia formula (QTcF) at Visit 1.
- Use of olanzapine+samidorphan for any reason in the last six months prior to Visit 1, any history of poor or inadequate response to treatment with olanzapine or no justifiable reason to expect improvement on olanzapine as assessed at Visit 1.
- Taken opioid agonists (e.g., codeine, oxycodone, tramadol, or morphine) within the 14 days prior to Visit 1 and/or anticipates a need to take opioid medication during the study period (e.g., planned surgery), or has taken opioid antagonists including naltrexone (any formulations) or naloxone within 60 days prior to Visit 1.
- Pregnant or breast feeding women. Women of child-bearing potential must have a negative serum beta-hCG pregnancy test at Visit 1 and a negative urine pregnancy test at Visit 2.
- Any clinically significant or unstable medical illness, condition, or disorder that is anticipated to potentially compromise subject safety on study medication or exercise, or adversely affect the evaluation of efficacy, including (but not necessarily limited to) the following (as assessed at Visit 1):
- Clinically significant hypotension or hypertension not stabilized on medical therapy.
- Unstable thyroid dysfunction in the past 6 months (e.g., hypothyroidism, hyperthyroidism, or thyroiditis that was untreated, or discovered and treatment was initiated within the 6 months prior to screening).
- Personal or family history of neuroleptic malignant syndrome, has a history of clinically significant extrapyramidal symptoms when taking olanzapine, or has had clinically significant tardive dyskinesia.
- Neurological conditions include the following:
- History of seizure disorder or a condition associated with seizures (except history of febrile seizures).
- History of brain tumor, subdural hematoma, stroke or any other clinically significant neurological condition within the 12 months prior to Visit 1.
- Head trauma with loss of consciousness within the 12 months prior to Visit 1.
- Active, acute or chronic CNS infection.
- +16 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
New York State Psychiatric Institute
New York, New York, 10032, United States
Related Publications (2)
Huhn M, Nikolakopoulou A, Schneider-Thoma J, Krause M, Samara M, Peter N, Arndt T, Backers L, Rothe P, Cipriani A, Davis J, Salanti G, Leucht S. Comparative efficacy and tolerability of 32 oral antipsychotics for the acute treatment of adults with multi-episode schizophrenia: a systematic review and network meta-analysis. Lancet. 2019 Sep 14;394(10202):939-951. doi: 10.1016/S0140-6736(19)31135-3. Epub 2019 Jul 11.
PMID: 31303314BACKGROUNDCorrell CU, Newcomer JW, Silverman B, DiPetrillo L, Graham C, Jiang Y, Du Y, Simmons A, Hopkinson C, McDonnell D, Kahn RS. Effects of Olanzapine Combined With Samidorphan on Weight Gain in Schizophrenia: A 24-Week Phase 3 Study. Am J Psychiatry. 2020 Dec 1;177(12):1168-1178. doi: 10.1176/appi.ajp.2020.19121279. Epub 2020 Aug 14.
PMID: 32791894BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
December 14, 2024
First Posted
December 18, 2024
Study Start
June 26, 2025
Primary Completion (Estimated)
April 1, 2027
Study Completion (Estimated)
April 1, 2027
Last Updated
July 11, 2025
Record last verified: 2025-05
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, ICF
- Time Frame
- six months after publication
- Access Criteria
- upon request
non-PHI upon request