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A Study to Assess the Safety and Efficacy of ASP4345 as Add-on Treatment for Cognitive Impairment in Subjects With Schizophrenia on Stable Doses of Antipsychotic Medication

Schizophrenia Clinical Trial

Official title:
A Phase 2a, Randomized, Double-Blind, Placebo-Controlled, Parallel-group Study to Assess the Safety and Efficacy of ASP4345 as Add-on Treatment for Cognitive Impairment in Subjects With Schizophrenia on Stable Doses of Antipsychotic Medication

Clinical Trial Summary

The purpose of this study was to evaluate the efficacy of ASP4345 on cognitive impairment compared to placebo using change from baseline in MATRICS Consensus Cognitive Battery (MCCB) neurocognitive composite score (excluding social cognition domain). The primary estimand used a Hypothetical Strategy and compared participants as though the participant had continued on the assigned treatment and to evaluate the safety and tolerability of ASP4345 compared to placebo. This study also evaluated the effects of ASP4345 compared to placebo on functional capacity using the University of California San Diego Performance-based Skills Assessment-2 Extended Range (UPSA-2-ER) total score and evaluated the pharmacokinetic profile of ASP4345.

Clinical Trial Description

Participants received oral doses of ASP4345 or matching placebo QD (once daily) for 12 weeks. All participants were administered the first dose of blinded study drug at the site following randomization and provided with web-based applications that provided supplemental cognitive training and recorded treatment compliance. Participants returned to the clinic weekly for safety, efficacy, and/or pharmacokinetic procedures. Participants continued the participant's antipsychotic treatment for the entire study and were followed for 14 days after the participant's last dose of study drug. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03557931
Study type Interventional
Source Astellas Pharma Inc
Contact
Status Completed
Phase Phase 2
Start date July 13, 2018
Completion date October 21, 2019
View Details
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