A Study of a Potential Oral Treatment to Prevent COVID-19 in Adults Who Are Exposed to Household Member(s) With a Confirmed Symptomatic COVID-19 Infection

Inclusion Criteria: * Participants who have a negative screening SARS-CoV-2 rapid antigen test result and who are asymptomatic household contacts with exposure within 96 hours to an individual who is symptomatic and recently tested positive for SARS CoV-2. * Fertile participants must agree to use a highly effective method of contraception Exclusion Criteria: * History of SARS-CoV-2 infection in the past 6 months * Experiencing measured fever (documented temperature \>38˚C or 100.4˚F) or other signs or symptoms consistent with COVID-19 * Known medical history of active liver disease * Chronic Kidney Disease or have known moderate to severe renal impairment. * Known Human Immunodeficiency Virus (HIV) infection with viral load \> 400 copies/ml within the last 6 months or taking prohibited medications for HIV treatment * Suspected or confirmed concurrent active systemic infection * Active cancer requiring treatment with prohibited medication. * Current or expected use of any medications or substances that are highly dependent on Cytochrome P450 3A4 (CYP3A4) for clearance or are strong inducers of CYP3A4 * Has received approved, authorized, or investigational anti-SARS-CoV-2 mAb, convalescent plasma, other drugs for treatment of COVID-19, or other anti-SARS-CoV-2 biologic products within 6 months of screening * Has received any SARS-CoV-2 vaccine within 6 months prior to screening or is expected to receive a SARS-CoV-2 vaccine or other approved, authorized, or investigational p…