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NBI-1117568

Phase 3

Schizophrenia | Small molecule | Psychiatry |Neurocrine Biosciences, Inc.|Last Updated: Jul 31, 2026

Success Probability

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Market & Valuation

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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)

LOWJul 31, 2026NCT07288320lastUpdatePostDate: changed
LOWJul 31, 2026NCT07288320lastUpdatePostDate: 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
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

Frequently asked questions about NBI-1117568

What is NBI-1117568 used for?

NBI-1117568 is an investigational small molecule being developed for the treatment of schizophrenia and bipolar I disorder. It is currently in Phase 2 and Phase 3 clinical trials for schizophrenia, with studies also evaluating its use in bipolar I disorder. The drug is not yet approved by regulatory authorities.

Who makes NBI-1117568?

NBI-1117568 is being developed by Neurocrine Biosciences, Inc., a biopharmaceutical company traded on NASDAQ under the ticker NBIX. The company is conducting multiple clinical trials for this investigational drug in schizophrenia and bipolar I disorder.

What phase is NBI-1117568 in?

NBI-1117568 is in Phase 2 and Phase 3 clinical development. One Phase 2 trial in schizophrenia has been completed, and three Phase 3 trials are currently recruiting participants. The drug remains investigational and has not received FDA approval.

What clinical trials is NBI-1117568 in?

NBI-1117568 has four active clinical trials: NCT06963034, a Phase 3 study in inpatient adults with schizophrenia; NCT07114874, a long-term Phase 3 study in schizophrenia; NCT07227818, a Phase 3 relapse prevention study in schizophrenia; and NCT05545111, a completed Phase 2 trial in schizophrenia.

Is NBI-1117568 the same as any other drug?

NBI-1117568 is the primary name used for this investigational drug in clinical trials. No alternative names have been reported for this compound in the available clinical trial information.