Vrsac

This trial studies adults aged 55 to 90 who have psychosis linked to Alzheimers Disease. It is a Phase 3, 38-week, randomized, double-blind, placebo-controlled outpatient study. Its main goal is to assess how well KarXT capsules prevent relapse of psychosis compared to placebo. Additional goals include evaluating time to treatment discontinuation or relapse, and monitoring safety and tolerability. Participants receive either KarXT capsules at various doses or placebo capsules. The study involves a randomized assignment and is conducted under quadruple masking. The treatment period lasts 38 weeks during which KarXT or placebo is taken three times daily. Assessments continue up to approximately 42 weeks to monitor adverse events and other safety measures. Throughout the study, participants attend outpatient visits for evaluations including cognitive tests, assessments of psychosis severity, caregiver reports, lab tests, vital signs, and safety monitoring. Researchers measure relapse timing, treatment discontinuation, neuropsychiatric symptoms, movement scales, weight, and signs related to heart and urinary health. Safety is closely tracked with various assessments until about week 42.

This research focuses on people with psychosis linked to Alzheimers Disease who have completed earlier studies CN012-0026, CN012-0027, or CN012-0056. It is a Phase 3 global, multicenter, open-label extension study lasting 52 weeks that aims to evaluate the long-term safety and tolerability of KarXT in this population. Participants will receive KarXT capsules containing Xanomeline and Trospium Chloride. The study includes various dosing levels ranging from 202 mg to 66.76.67 mg taken three times daily. This open-label extension follows completion of previous studies and continues for up to 54 weeks from the initial dose, including a 14-day safety follow-up after the final dose. During the study, participants will be monitored for treatment-emergent adverse events and serious adverse events. Safety assessments include clinical evaluations throughout the treatment and 14 days after the last dose. The total participation time is approximately one year, allowing researchers to understand long-term effects of KarXT in this group.