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Clinical Trials/NCT07288320
NCT07288320
Recruiting
Phase 2

A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy, Safety, and Pharmacokinetics of NBI-1117568 in Adults With Bipolar I Disorder Who Are Currently Experiencing a Manic Episode or Manic Episode With Mixed Features, With or Without Psychotic Symptoms, and Warrant Inpatient Hospitalization

Neurocrine Biosciences6 sites in 1 country150 target enrollmentStarted: December 24, 2025Last updated:
InterventionsNBI-1117568Placebo

Overview

Phase
Phase 2
Status
Recruiting
Enrollment
150
Locations
6
Primary Endpoint
Change From Baseline in Young Mania Rating Scale (YMRS) Total Score at Day 21

Overview

Brief Summary

The primary objective for this study is to evaluate the efficacy of NBI-1117568 compared with placebo on improving manic symptoms in adults with bipolar I disorder who are currently experiencing an episode of mania with or without mixed features.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Participant, Investigator)

Eligibility Criteria

Ages
18 Years to 65 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Participant has a primary diagnosis of bipolar I disorder.
  • The participant has had at least 1 prior documented manic episode that required treatment.
  • The participant is experiencing an acute manic episode or manic episode with mixed features, with or without psychotic symptoms.

Exclusion Criteria

  • Any unstable or poorly controlled medical condition or chronic disease (including history of neurological, hepatic, renal, cardiovascular, gastrointestinal, pulmonary, autoimmune, or endocrine disease that may affect study participation or results), or malignancy within 90 days before the start of screening.
  • Primary diagnosis is not bipolar I disorder.
  • History of clozapine treatment for treatment-resistant psychosis.
  • History of psychiatric hospitalization(s) for ≥30 consecutive days during the 90 days before the start of screening.
  • Note: Additional inclusion/exclusion criteria may apply, per protocol.

Arms & Interventions

NBI-1117568

Experimental

Participants will receive NBI-1117568.

Intervention: NBI-1117568 (Drug)

Placebo

Placebo Comparator

Participants will receive placebo matching NBI-1117568.

Intervention: Placebo (Drug)

Outcomes

Primary Outcomes

Change From Baseline in Young Mania Rating Scale (YMRS) Total Score at Day 21

Time Frame: Baseline, Day 21

Secondary Outcomes

  • Change From Baseline in Clinical Global Impression - Severity Scale (CGI-S) Score at Day 21(Baseline, Day 21)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (6)

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