A Study to Evaluate Metabolism, Excretion, and Mass Balance of [14C]Vapendavir

Inclusion Criteria: * Must provide written informed consent * Must be willing and able to communicate and participate in the whole study * Participants must demonstrate their ability to swallow 8 capsules * Aged 30 to 65 years inclusive at the time of signing informed consent * Must agree to adhere to the study contraception requirements * Healthy male participants according to the assessment of the investigator, as based on a complete medical history including a physical examination, vital signs, 12- lead ECG, and laboratory safety tests without any clinically significant abnormalities * Body mass index (BMI) of 18.0 to 35.0 kg/m2 as measured at screening * Must have regular bowel movements (i.e. average stool production of ≥1 and ≤3 stools per day) Exclusion Criteria: * Serious adverse reaction or serious hypersensitivity to any drug or formulation excipients * Presence or history of clinically significant allergy requiring treatment, as judged by the investigator * History of clinically significant cardiovascular, renal, hepatic, dermatological, chronic respiratory or gastrointestinal disease, neurological or psychiatric disorder, as judged by the investigator * Acute diarrhea or constipation in the 7 days before the predicted Day 1 * Participants who do not have suitable veins for multiple venepunctures/cannulation as assessed by the investigator or delegate at screening * Clinically significant abnormal laboratory values at screening as judged by the investigator * Po…