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NBI-1117568

Phase 3

Schizophrenia | Small molecule | Psychiatry |Neurocrine Biosciences, Inc.|Last Updated: Jun 5, 2026

Success Probability
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials5
Total Enrollment1,938
FDA Designations
No designations recorded
Clinical trial landscape

NBI-1117568 · 6 trials · 3 indications

Phase 3 4Phase 2 2
NCT07227818Efficacy of NBI-1117568 in Preventing Relapse in Adults With SchizophreniaSchizophrenia
RECRUITING560 Analytics
NCT07105098NBI-1117568-SCZ3030: Evaluation of NBI-1117568 in Inpatient Adults With SchizophreniaSchizophrenia
RECRUITING284 Analytics
NCT07114874NBI-1117568-SCZ3032: Long-Term Evaluation of NBI-1117568 in Adults With SchizophreniaSchizophrenia
RECRUITING600 Analytics
NCT06963034NBI-1117568-SCZ3029: Evaluation of NBI-1117568 in Inpatient Adults With SchizophreniaSchizophrenia
RECRUITING284 Analytics
PHASE3RECRUITING
Efficacy of NBI-1117568 in Preventing Relapse in Adults With Schizophrenia
SchizophreniaUnlock trial analytics
PHASE3RECRUITING
NBI-1117568-SCZ3030: Evaluation of NBI-1117568 in Inpatient Adults With Schizophrenia
SchizophreniaUnlock trial analytics
PHASE3RECRUITING
NBI-1117568-SCZ3032: Long-Term Evaluation of NBI-1117568 in Adults With Schizophrenia
SchizophreniaUnlock trial analytics
PHASE3RECRUITING
NBI-1117568-SCZ3029: Evaluation of NBI-1117568 in Inpatient Adults With Schizophrenia
SchizophreniaUnlock trial analytics
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 Young Mania Rating Scale (YMRS) Total Score at Day 21
Baseline, Day 21
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
Change From Baseline in Clinical Global Impression - Severity Scale (CGI-S) Score at Day 21
Baseline, Day 21
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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 to 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 26, 2026NCT07288320Status: NOT_YET_RECRUITING → RECRUITING
LOWMay 24, 2026NCT06963034studyFirstPostDate: changed
LOWMay 24, 2026NCT07105098studyFirstPostDate: changed
LOWMay 24, 2026NCT07114874studyFirstPostDate: changed
LOWMay 24, 2026NCT07227818studyFirstPostDate: changed
LOWMay 24, 2026NCT07288320studyFirstPostDate: changed