BPC 157 & The Gut Brain Axis: A Practitioner's Definitive Review of the Evidence BPC 157 LeadWest Medical 544 published articles on BPC 157. 36 met inclusion criteria for a 2025 systematic review. 35 were animal studies. One was clinical. Twelve patients. Seven reported pain relief. No control group. That is Stable Gastric Pentadecapeptide BPC 157 as Therapy After Surgical Detachment of the Quadriceps Muscle from Its Attachments for Muscle to Bone Reattachment in Rats Stable Gastric Pentadecapeptide BPC 157 as a Therapy and Safety Key: A Special Beneficial Pleiotropic Effect Controlling and Modulating Angiogenesis and the NO System