Peptide BPC 157 Intra V Is the lack of human data in BPC 157 a red flag? If a drug could actually knit torn tendons back together in weeks, a trillion dollar pharmaceutical industry probably wouldn't bury Dr. TLDR: BPC 157 has not been proven to cause cancer. But it has also not been proven safe in people with active cancer, recent cancer, premalignant conditions, suspicious lesions, or high Orthopedic Use of BPC 157 Sports Med Review BPC 157 Mark Hyman, MD