Kinase inhibitors have given rise to an era of precision medicine for the treatment of cancer, but the ability of cancer cells to mutate enables tumors to develop resistance to existing therapies. Nuvalent is developing therapies that both target the original tumor as well tumors with emergent resistance. We spoke to James Porter, CEO of Nuvalent, about how it designs drugs that address the challenges of both kinase resistance and selectivity, its pipeline in development, and why it’s critical that its experimental therapy for non-small cell lung cancer can penetrate the brain.