Shooting for further proof of durable, drug-free, disease-free remission with a single dose of KYV-101 in generalized myasthenia gravis, Kyverna Therapeutics Inc. plans to start phase III work by the end of this year. The Emeryville, Calif.-based firm rolled out positive interim results from the phase II portion of the registrational Kysa-6 clinical trial testing the drug, a fully human, autologous, CD19 CAR T-cell therapy with CD28 costimulation.