NCT06740890

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

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for phase_4

Timeline
10mo left

Started Jun 2025

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress49%
Jun 2025Apr 2027

First Submitted

Initial submission to the registry

December 14, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

December 18, 2024

Completed
6 months until next milestone

Study Start

First participant enrolled

June 26, 2025

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2027

Last Updated

July 11, 2025

Status Verified

May 1, 2025

Enrollment Period

1.8 years

First QC Date

December 14, 2024

Last Update Submit

July 8, 2025

Conditions

Keywords

ExerciseAntipsychotic induced weight gainolanzapine-samidorphan

Outcome Measures

Primary Outcomes (1)

  • Weight

    Body weight

    4 weeks

Secondary Outcomes (1)

  • Weight

    8 weeks

Study Arms (1)

olanzapine-samidorphan plus exercise

EXPERIMENTAL
Drug: Olanzapine-samidorphan + exercise

Interventions

8 weeks of open label Olanzapine-samidorphan + 4 weeks of aerobic exercise

olanzapine-samidorphan plus exercise

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

RECRUITING

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: 31303314BACKGROUND
  • Correll 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

Psychotic DisordersBipolar DisorderMotor Activity

Interventions

Exercise

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersBipolar and Related DisordersMood DisordersBehavior

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Open label
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

non-PHI upon request

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
six months after publication
Access Criteria
upon request

Locations