# IO Biotech will file for bankruptcy after failure of cancer vaccine in key trial - slug: io-biotech-will-file-for-bankruptcy-after-failure-of-cancer-vaccine-in-key-trial - date: 2026-04-01 - category: Biotech & Life Sciences The failed melanoma vaccine showed a 16.6-month benefit in one subgroup but missed its primary endpoint. Now a bankruptcy trustee is selling the IP — and the price will tell us if the field sees salvage value in a statistical miss. ---