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NBI-1117568

Phase 3

Schizophrenia | Small molecule | Psychiatry |Neurocrine Biosciences, Inc.|Last Updated: Jun 5, 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
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials5
Total Enrollment1,938
FDA Designations
No designations recorded
Clinical Trials (5)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07227818Efficacy of NBI-1117568 in Preventing Relapse in Adults With SchizophreniaPHASE3 RECRUITING 560Dec 16, 2025Jul 1, 2029Jun 5, 202620 United States
NCT07105098NBI-1117568-SCZ3030: Evaluation of NBI-1117568 in Inpatient Adults With SchizophreniaPHASE3 RECRUITING 284Aug 11, 2025Nov 1, 2027May 15, 202615 United States, Bulgaria +3
NCT07114874NBI-1117568-SCZ3032: Long-Term Evaluation of NBI-1117568 in Adults With SchizophreniaPHASE3 RECRUITING 600Jul 11, 2025Dec 1, 2031Jun 5, 202657 United States, Bulgaria +2
NCT06963034NBI-1117568-SCZ3029: Evaluation of NBI-1117568 in Inpatient Adults With SchizophreniaPHASE3 RECRUITING 284May 8, 2025Oct 1, 2027Mar 6, 202621 United States
NCT05545111Efficacy, Safety, Tolerability, and Pharmacokinetics of NBI-1117568 in Adults With SchizophreniaPHASE2 COMPLETED 210Oct 4, 2022Jul 10, 2024Jul 11, 202515 United States
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Study Endpoints
Primary Endpoints
Time From Randomization to Relapse
Up to approximately 30 weeks
Change From Baseline in Positive and Negative Syndrome Scale (PANSS) Total Score at Week 5
Baseline, Week 5
Number of Participants with Treatment-emergent Adverse Events
Up to 36 months
Change from baseline in total Positive and Negative Syndrome Scale (PANSS) score at Week 6
Baseline and Week 6

The PANSS evaluates the severity of various symptoms of schizophrenia, and is commonly used to measure symptom reduction in patients taking antipsychotics. Each item is scored on a 7-point severity scale (1=absent; 2=minimal; 3=mild; 4=moderate; 5=moderate severe; 6=severe; 7=extreme). The PANSS total score is derived from the summation of each item. A higher score indicates greater severity.

Secondary Endpoints
Change From Baseline in Clinical Global Impression - Severity (CGI-S) Score at Week 5
Baseline, Week 5
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
NBI-1117568EXPERIMENTALAll participants will receive NBI-1117568 during the Open-label Stabilization Period, then will be randomized to receive NBI-1117568 during the Double-blind Treatment Period.
PlaceboPLACEBO_COMPARATORAll participants will receive NBI-1117568 during the Open-label Stabilization Period, then will be randomized to receive placebo matching NBI-1117568 during the Double-blind Treatment Period.
Dose Level AEXPERIMENTALParticipant administered Dose Level A (6 weeks)
Dose Level BEXPERIMENTALParticipant administered Dose Level B (6 weeks)
Dose Level CEXPERIMENTALParticipant administered Dose Level C (6 weeks)
Dose Level DEXPERIMENTALParticipant administered Dose Level D (6 weeks)
Placebo SchedulePLACEBO_COMPARATORParticipant administered placebo (6 weeks)
Interventions
NameTypeDescription
NBI-1117568DRUGOral capsules
PlaceboDRUGOral capsules
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites20

Key Inclusion Criteria: * Participant has a primary diagnosis of schizophrenia established by a comprehensive psychiatric evaluation based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) criteria. * Participant had the initial diagnosis of schiz...

Countries:United StatesBulgariaHungaryRomaniaSerbia
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Recent Changes (Last 90 Days)
LOWJun 5, 2026NCT07114874lastUpdatePostDate: changed
LOWJun 5, 2026NCT07227818lastUpdatePostDate: changed
LOWJun 5, 2026NCT07114874lastUpdatePostDate: changed
LOWJun 5, 2026NCT07227818lastUpdatePostDate: changed
LOWJun 5, 2026NCT07114874lastUpdatePostDate: changed
LOWJun 5, 2026NCT07227818lastUpdatePostDate: changed
LOWJun 5, 2026NCT07114874lastUpdatePostDate: changed
LOWJun 5, 2026NCT07227818lastUpdatePostDate: changed
LOWMay 26, 2026NCT06963034primaryCompletionDate: changed
HIGHMay 26, 2026NCT07114874Enrollment: 800 → 600
LOWMay 26, 2026NCT07227818Status: NOT_YET_RECRUITING → RECRUITING
LOWMay 26, 2026NCT07105098primaryCompletionDate: changed
LOWMay 24, 2026NCT06963034studyFirstPostDate: changed
LOWMay 24, 2026NCT07114874studyFirstPostDate: changed
LOWMay 24, 2026NCT07105098studyFirstPostDate: changed
LOWMay 24, 2026NCT07227818studyFirstPostDate: changed