The purpose of this study is to evaluate the long-term safety and tolerability of KarXT and KarX-EC for the treatment of Schizophrenia and autism-related irritability in adolescents, respectively
None
Participants must not have a significant risk of committing violent acts, serious self-harm, or attempting suicide based on history or routine psychiatric status examination, or those who are homicidal or are considered to be a high risk to others, or who have an answer of "Yes" on Questions 4 or 5 on the suicidal ideation section of the "Since Last Visit" version of the C-SSRS at baseline (Visit 1). Nonsuicidal, self-injurious behavior is not exclusionary.
Participants must not have any clinically significant abnormality including any finding(s) from the physical examination, vital signs, ECG at the end of treatment visit of Study CN0120020, CN0120044, or CN0120045 that the investigator, in consultation with the Sponsor Medical Monitor, would jeopardize the safety of the participant.
Participants must not have either a systolic blood pressure (sBP) or diastolic blood pressure (dBP) meeting criteria for stage 2 hypertension (HTN), regardless of the presence or absence of symptoms.
Other protocol-defined Inclusion/Exclusion criteria apply.
Single group
KarXT
DrugSpecified dose on specified days
Number of participants with treatment emergent adverse events (TEAEs)
Number of participants with adverse events of special interest (AESIs)
Number of participants with serious adverse events (SAEs)
Number or participants with procholinergic symptoms
Number of participants with anticholinergic symptoms
Number of participants with suicidal ideation and behavior assessed using the Columbia Suicide Severity Rating Scale (C-SSRS)
Change from baseline on the Simpson-Angus Scale (SAS)
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