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OLZ/SAM

Phase 3

Bipolar I Disorder | Small molecule | Psychiatry |Alkermes plc|Last Updated: Jun 2, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials2
Total Enrollment243
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04987229Long-term Safety Extension Study of OLZ/SAM in Pediatric SubjectsPHASE3 ENROLLING BY_INVITATION 236Oct 22, 2021Sep 1, 2027Jun 2, 202635 United States, Argentina +3
NCT04987658Phase 1 Study of OLZ/SAM in Pediatric Subjects With Bipolar I DisorderPHASE1 COMPLETED 7Jul 22, 2021Aug 11, 2023Nov 22, 20232 United States
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Study Endpoints
Primary Endpoints
Incidence of adverse events
Up to 52 weeks
Maximum plasma concentration observed
Up to 3 weeks
Area under the plasma concentration-time curve over the 24-hour dosing interval
Up to 3 weeks
Time to reach maximum concentration
Up to 3 weeks
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
All subjectsEXPERIMENTALAll subjects will receive OLZ/SAM at a dose determined by the Investigator and based on the olanzapine dosing received in the antecedent study (ALKS 3831-A311 or ALKS 3831-A312 ENLIGHTEN-Youth)
Group 1 Olanzapine/ 5 mg SamidorphanEXPERIMENTALOlanzapine will be gradually increased to a target dose of 10mg/samidorphan 5mg (Range: 5-20mg Olanzapine/samidorphan 5mg)
Group 2 Olanzapine/ 10mg SamidorphanEXPERIMENTALOlanzapine will be gradually increased to a target dose of 10mg/samidorphan 10mg (Range: 5-20mg Olanzapine/samidorphan 10mg)
Interventions
NameTypeDescription
OLZ/SAMDRUGOlanzapine and Samidorphan fixed dose coated tablet taken once daily
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Eligibility Criteria
Age Range10 Years — 17 Years
SexALL
Healthy VolunteersNo
Study Sites35

Inclusion Criteria: * Subject has completed the treatment period in either the ALKS 3831-A311 or the ALKS 3831-A312 study within 10 days of enrolling into this extension study, or subject had terminated early from Study ALKS 3831-A312 due to the clinically significant weight gain criterion. * Subje...

Countries:United StatesArgentinaBrazilColombiaMexico
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Recent Changes (Last 90 Days)
LOWJun 2, 2026NCT04987229lastUpdatePostDate: changed
LOWJun 2, 2026NCT04987229lastUpdatePostDate: changed
LOWJun 2, 2026NCT04987229lastUpdatePostDate: changed
LOWMay 26, 2026NCT04987229primaryCompletionDate: changed
LOWMay 24, 2026NCT04987229studyFirstPostDate: changed