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Study details
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Study to Evaluate Weight Gain as Assessed by Change in BMI Z-score in Pediatric Subjects With Schizophrenia or Bipolar I Disorder

Alkermes, Inc.
NCT IDNCT05303064ClinicalTrials.gov data as of Apr 2026
Phase

Phase 3

Target enrollment

220

Study length

about 4.3 years

Ages

10–17

Locations

26 sites in AL, AR, CA +16

What this study is about

Researchers are testing whether a treatment (OLZ/SAM vs olanzapine) affects weight gain, measured by changes in BMI Z-score, in children with schizophrenia or bipolar I disorder. The trial will last for 1553 days and involve approximately 220 participants.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take OLZ/SAM
  • 2.Take Olanzapine

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Oral

How treatment is administered

Treatment Assignment
Randomized & Blinded

You may get a placebo/standard care, and you won't know which.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

olanzapine

Drug routes

oral (Oral Tablet)

Endpoints

Primary: Change from baseline in body mass index (BMI) Zscore at week 12

Secondary: Change from baseline in Children's Depression Rating Scale-Revised (CDRS-R) for patients with bipolar I disorder by visit, Change from baseline in Positive and Negative Syndrome Scale (PANSS) total score for patients with schizophrenia by visit, Change from baseline in Young Mania Rating Scale (YMRS) in patients with Bipolar I disorder, Change from baseline in waist circumference, Incidence of Adverse Events, Proportion of subjects with >=0.5 increase in BMI Z-score at Week 12

Body systems

Psychiatry / Mental Health