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About
Founded in 2023 by Anthony Mouchantaf and Dr. Alexander Mosa, Biossil pairs AI with real-world drug development: it identifies molecules it believes were prematurely shelved, acquires or licenses them, and runs its own clinical trials. Its programs span sickle cell disease, idiopathic pulmonary fibrosis, glioblastoma, breast cancer and Alzheimer's. The company is headquartered in Toronto with a presence in the Boston area.
Backers
OpenAI, Founders Fund, Golden Ventures, Panache Ventures, Modern Capital, DRI Healthcare, 137 Ventures, Quiet Capital, Staircase Ventures
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Quick answers
What does Biossil do?
It uses AI to identify drug molecules that failed late-stage trials, acquires or licenses them, and re-develops them through its own clinical trials — betting that some were shelved for reasons other than the science.
Who backs Biossil?
It raised about US$70M by its 2026 stealth exit, with investors including OpenAI and Peter Thiel's Founders Fund, alongside Golden Ventures, Panache Ventures, DRI Healthcare and others.