IW-6463 Safety Study in Healthy Elderly Subjects

Inclusion Criteria: * Subject is an ambulatory adult at least 65 years old at the screening visit * Subject is in good health and has no clinically significant findings on physical examination * Female participants must be postmenopausal. A postmenopausal state is defined as no menses for ≥12 consecutive months without an alternative medical cause. A high follicle-stimulating hormone (FSH) level at screening (\>40 IU/L or mIU/mL) in the postmenopausal range may be used to confirm a postmenopausal state. * Male participants who have not been surgically sterilized by vasectomy (conducted ≥60 days before the Screening Visit or confirmed via sperm analysis) must agree contraceptive use per protocol * Men must also agree to not donate sperm throughout the study and for 3 months after the final dose of study drug * Other inclusion criteria per protocol Exclusion Criteria: * Any active or unstable clinically significant medical condition * Other exclusion criteria per protocol