Overview Examining Mu Opioid Mechanisms of Ketamine's Rapid Effects in OCD (MKET2) Status: Recruiting Trial end date: 2028-11-01 Target enrollment: Participant gender: Summary The purpose of this study is to understand how ketamine works in the brain to bring about a reduction in OCD symptoms. Phase: Phase 2 Details Lead Sponsor: Stanford UniversityCollaborator: National Institute of Mental Health (NIMH)Treatments: KetamineNaltrexone