Ratio Therapeutics Employee Directory
Biotechnology ResearchMassachusetts, United States51-200 Employees
Ratio Therapeutics is a mid-sized biotechnology research company focused on cancer radiopharmaceuticals, advancing from discovery through early clinical development. Based in Boston, Massachusetts, it develops targeted radiotherapeutics intended to treat cancer by combining diagnostic imaging with therapeutic radioisotopes for theranostic use. The company’s Trillium targeting scaffold modulates pharmacokinetics alongside chelation chemistry to create proprietary small-molecule agents capable of carrying imaging and therapeutic isotopes. Its platform is tunable and supported by small-scale imaging studies in patients to help accelerate and de-risk the selection of lead compounds. The company collaborates with external partners to advance its radiopharmaceutical programs toward clinical testing and potential commercialization. In May 2026, the company announced an expanded manufacturing collaboration with PharmaLogic Holdings Corp. to support the development and readiness of its lead therapeutic candidate, Ac-225 RTX-2358.