NCT04092686

A Clinical Trial That Will Study the Efficacy and Safety of an Investigational Drug in Acutely Psychotic People With Schizophrenia

A Randomized, Double-blind, Parallel-group, Placebo-controlled, Fixed-dose, Multicenter Study to Evaluate the Efficacy and Safety of SEP-363856 in Acutely Psychotic Subjects With Schizophrenia

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 464 (actual)
• Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc. · Industry
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

A clinical trial to study the efficacy and safety of an investigational drug in acutely psychotic people with schizophrenia. Participants in the study will either receive the drug being studied or a placebo. This study is accepting male and female participants between 18 -65 years old who have been diagnosed with schizophrenia. This study will be conducted in 60 locations world wide. The study will last up to nine (9) weeks.

Detailed description

This is a multicenter, randomized, double-blind, parallel-group, fixed-dosed study evaluating the efficacy and safety of two doses of SEP-363856 (75 and 100 mg/day) versus placebo over a 6-week Treatment Period in acutely psychotic subjects with schizophrenia. This study is projected to randomize approximately 462 subjects to 3 treatment groups (SEP-363856 75 mg/day, SEP-363856 100 mg/day, or placebo) in a 1:1:1 ratio. Treatment assignment will be stratified by country. Study drug will be taken once a day and may be taken with or without food. This study is designed to test the hypotheses that treatment with SEP-363856 in adult subjects with schizophrenia will result in significantly greater reduction (i.e. improvement) in PANSS total score and CGI-S score at Week 6 from Baseline when compared to placebo. The overall Type I error is controlled for two hierarchical families of hypotheses. The first family includes hypotheses about the testing of change from Baseline in PANSS total score at Week 6 between each of the SEP-363856 dose levels vs. placebo. The second family of hypotheses are about the testing of change from Baseline in CGI-S score at Week 6 between each of the SEP-363856 dose levels vs. placebo.

Conditions

• Schizophrenia

Interventions

Type	Name	Description
DRUG	SEP-363856 75mg	SEP-363856 75mg tablet dosed once daily
DRUG	SEP-363856 100mg	SEP-363856 100mg tablet dosed once daily
DRUG	Placebo	Placebo tablet dosed once daily

Timeline

• Start date: 2019-09-30
• Primary completion: 2023-06-14
• Completion: 2023-06-14
• First posted: 2019-09-17
• Last updated: 2024-06-26

Locations

62 sites across 7 countries: United States, Bulgaria, Croatia, Latvia, Russia, Serbia, Ukraine

Regulatory

• FDA-regulated drug study