ASP Isotopes invests $5 million in radiotherapeutic startup IsoBio

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ASP Isotopes Inc. and IsoBio, Inc. Announce Series Seed Funding of IsoBio, Inc. to Advance Innovative Antibody-Isotope Conjugates (AICsTM) For Cancer Treatment

July 28, 2025 8:31 AM UTC

- IsoBio, Inc. (IsoBio) is a U.S.-based radiotherapeutic development company focused on developing a broad pipeline of mAb-based radioisotope therapeutics, known as antibody-isotope conjugates (AICsTM), targeting both derisked and novel tumor antigens for patients in need of new cancer therapies.

- IsoBio has closed its initial Series Seed financing round, raising $5 million from ASP Isotopes Inc. (ASPI).

- The strategic collaboration contemplates future manufacturing opportunities for PET Labs (ASPIs nuclear medicine subsidiary).

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