An Active-Controlled Early Phase Study of MK-8189 in Adults With Schizophrenia (MK-8189-005)


This will be a randomized, placebo-controlled, parallel-group, multi-site, double-blind trial of MK-8189 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 MK-8189 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 Design


Schizophrenia, Acute Episode


MK-8189, Risperidine, Placebo

Not yet recruiting

Merck Sharp & Dohme Corp.

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So, which phase is this drug in now?
Did it complete phase 1 yet?

According to this phase 1 completed.

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