Rajkot

Researchers are evaluating the long-term safety and tolerability of adjunctive KarXT, a combination of xanomeline and trospium chloride, in adults aged 18 to 65 with schizophrenia who did not have sufficient symptom control with their current antipsychotic medications. This Phase 3, open-label extension study involves participants who previously completed the treatment period of the ARISE study (KAR-012). The goal is to monitor how well patients tolerate KarXT over an extended period while assessing related safety concerns. Participants receive fixed doses of KarXT capsules twice daily, with doses ranging from 50 mg/20 mg up to 125 mg/30 mg. The study lasts for 52 weeks as an outpatient program. This open-label extension allows researchers to observe the effects and safety of KarXT when added to stable antipsychotic treatment under real-world conditions. During the study, researchers closely monitor participants for any treatment-emergent adverse events from the initial dose through a safety follow-up visit at 54 weeks or early termination. Participants will undergo regular assessments, including clinical evaluations and reports from reliable caregivers who assist with study activities. The study ensures participants maintain stable living situations and continue their background antipsychotic medications throughout the study period.