RecruitingEarly Phase 1Diagnostic testRadiocaine Safety StudyThis is a Phase 1, single-center, open-label study evaluating the safety, biodistribution, and radiation dosimetry of Radiocaine™, an investigational fluorine-18-labeled PET radiotracer designed to bind voltage-gated sodium channels. The study enrolls adult volunteers and aims to inform future clinical development in molecular imaging applications. Radiocaine™ is being developed as a potential diagnostic imaging agent and imaging biomarker for the localization and quantification of sodium channel activity.