At a glance
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A Phase IIa, Randomized, Double-Blind, Placebo-Controlled Clinical Trial of the Efficacy and Safety of MK-8189 Using Risperidone as an Active Control in Subjects Experiencing an Acute Episode of Schizophrenia
In Brief
A Phase 2 clinical trial evaluating Elpipodect, Risperidone, and 2 other interventions for Schizophrenia, Acute Episode. Completed, enrolled 224 participants across 28 sites.
Detailed Summary
This will be a randomized, placebo-controlled, parallel-group, multi-site, double-blind trial of elpipodect compared with placebo, using Risperidone as an active control. The participants will be adult subjects experiencing an acute episode of schizophrenia, according to the criteria specified in the Diagnostic and Statistical Manual of Mental Disorders, 5th ed. (DSM-5). This study will be up to 7 weeks in duration, with up to 7 site visits for each participant. The study will consist of a Screening/tapering period (up to one week long), a 4-week treatment period, and a 14-day follow-up period. The primary objective will be to assess symptoms of schizophrenia at 4 weeks, and to assess safety and tolerability during treatment and post-treatment follow-up. The secondary objective will be to assess the severity of schizophrenia at 4 weeks. The primary hypothesis is that elpipodect is superior to placebo in reducing the overall symptoms of schizophrenia as assessed by the mean change from baseline in the Positive and Negative Syndrome Scale (PANSS) total score after 4 weeks of treatment.
Study Details
Timeline
Interventions
Oral CR tablets (4 mg) administered QD at the following dose strengths: 4 mg (1 tablet); 8 mg (2 tablets); 12 mg (3 tablets)
Oral capsules (2 mg) administered QD at the following dose strengths: 2 mg (1 capsule); 4 mg (2 capsules); 6 mg (3 capsules)
Oral placebo tablet(s) matching the MK-8189 tablet, administered QD.
Oral placebo capsule(s) matching the risperidone capsule, administered QD.