RecruitingPhase 1Drug trialEffects of Efavirenz on the Pharmacokinetics of Suzetrigine in Healthy ParticipantsThe purpose of the study is to evaluate the pharmacokinetics (PK) of Suzetrigine (SUZ) and its metabolite in the absence and presence of efavirenz, a moderate CYP3A inducer. In addition, the purpose is to evaluate the safety and tolerability of SUZ when administered in the absence and presence of efavirenz.