Miyakonojo

Researchers are evaluating how well vortioxetine tablets at doses of 10 mg/day or 20 mg/day work compared to placebo tablets for treating depression symptoms in Japanese teenagers aged 12 to 17 years who have been diagnosed with Major Depressive Disorder (MDD). This phase 3 clinical trial aims to assess the drug's effectiveness, safety, and how the body processes the medication in this pediatric population. Participants will be randomly assigned to receive either vortioxetine or a placebo once daily for 14 weeks. The study includes an initial screening period of up to 15 days to determine eligibility, followed by the 14-week treatment phase. After completing treatment, there is a 4-week period dedicated to monitoring any side effects. Throughout the study, participants will visit the clinic 13 times for assessments and medication administration. During the study, participants will undergo evaluations including the Children Depression Rating Scale Revised version (CDRS-R) to measure changes in depression symptoms from baseline to week 14. Other assessments include safety monitoring and pharmacokinetics. Researchers will also collect information on side effects during and after treatment. The total time commitment for participants is about 20 weeks, including screening, treatment, and follow-up periods.

Researchers are evaluating the effectiveness and safety of KarXT for treating schizophrenia in adolescents aged 13 to 17 years. This Phase 3 study focuses on adolescents who meet diagnostic criteria for schizophrenia and experience symptoms of psychosis. The study aims to better understand how KarXT may impact symptoms as measured by a standard schizophrenia rating scale. Participants will receive either KarXT or a matching placebo at specified doses on specific days. The study is randomized, double-blind, and placebo-controlled, meaning neither the participants nor the researchers know who receives the active drug or placebo during the trial. During the study, researchers will assess changes in schizophrenia symptoms using the Positive and Negative Syndrome Scale (PANSS) after 5 weeks of treatment. Participants will be monitored for safety and symptom changes throughout the study period. The goal is to gather detailed information about KarXT's impact on schizophrenia symptoms in this adolescent population.

Researchers are evaluating the effectiveness and safety of KarXT in Japanese adults aged 18 to 65 who are experiencing acute psychotic episodes due to schizophrenia. The study focuses on adults diagnosed with schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition (DSM-5) and confirmed by a psychiatric interview. Participants must have a specific range of symptom severity measured by the Positive and Negative Syndrome Scale (PANSS) and Clinical Global Impression-Severity (CGI-S) scale. Participants are randomly assigned to receive either KarXT or a placebo during a 5-week double-blind phase where neither the participants nor the researchers know which treatment is given. After this, there is a 52-week open-label extension where all participants receive KarXT. The doses are specified and administered on set days throughout the study. Throughout the study, researchers monitor changes in schizophrenia symptoms using the PANSS score at week 5 and track any treatment-emergent adverse events up to week 52 during the open-label extension. The study involves regular assessments to ensure safety and effectiveness over both the short and long term, with total participation lasting up to 57 weeks.

Researchers are assessing the long-term safety and tolerability of two treatments, KarXT and KarX-EC, for adolescents with schizophrenia and children and adolescents with irritability related to autism spectrum disorder. This Phase 3, multicenter, open-label study includes participants aged 5 to 17 years and aims to monitor how these treatments are tolerated over time in these specific populations. Participants receive KarXT or a combination of KarXT and KarX-EC at specified doses on designated days. The study includes adolescents aged 13 to 17 years with schizophrenia and children and adolescents aged 5 to 17 years with autism-related irritability. Treatment is administered openly, meaning both researchers and participants know the treatment being given. Throughout the study, researchers will evaluate participants for any treatment-emergent adverse events, adverse events of special interest, and serious adverse events for up to 54 weeks. Safety assessments include monitoring physical examinations, vital signs, and ECGs. Participants must have completed earlier related studies without safety concerns to join, and their health will be closely monitored during the study to ensure safety and tolerability.