IDRx, Inc., a clinical-stage biopharmaceutical company dedicated to transforming cancer treatment with purpose-built precision combination therapies, launched today with a $122 million oversubscribed Series A financing. The financing was led by Andreessen Horowitz (a16z) and Casdin Capital, with participation from Nextech Invest, Forge Life Science Partners and other undisclosed investors. Inspired by a few curative combination regimens in cancer and the successful drug cocktails engineered in other disease areas such as cystic fibrosis and antivirals, IDRx was incubated by Borisy Labs to address the limitations of today’s precision cancer medicines with highly selective, purposely designed drug combinations to help more patients achieve prolonged, durable responses to therapy earlier in the course of their disease.