A Study of the Absorption, Metabolism, and Excretion of [14C]-Fosgonimeton (ATH-1017)

Inclusion Criteria: 1. Males, of any race, between 18 and 60 years of age, inclusive. 2. Body mass index between 18.0 and 32.0 kg/m2, inclusive. 3. In good health, determined by the investigator's discretion 4. Subjects and their partners will agree to use contraception during their participation 5. History of a minimum of 1 bowel movement per day. Exclusion Criteria: 1. Significant history or clinical manifestation of any relevant, significant medical disorder, as determined by the investigator (or designee). 2. History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the investigator (or designee). 3. Positive hepatitis panel and/or positive human immunodeficiency virus test. 4. Use or intend to use any prescription medications/products within 14 days prior to check-in, unless deemed acceptable by the investigator (or designee). 5. Use or intend to use any nonprescription medications within 7 days prior to check-in, unless deemed acceptable by the investigator (or designee). 6. Participation in a clinical study involving administration of an investigational drug (new chemical entity) in the past 30 days or 5 half-lives (if known) prior to dosing. 7. Subjects who have participated in more than 3 radiolabeled drug studies in the last 12 months 8. Poor peripheral venous access. 9. Subjects with exposure to significant diagnostic or therapeutic radiation (e.g., serial x-ray, computed tomography scan, barium meal)