Tatsuo Kawai, M.D., Ph.D.

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Pig kidneys bridge first patients to human transplants

As of September 2026: Director of the Legorreta Center for Clinical Transplant Tolerance

Tim Andrews went 271 days without dialysis after receiving a genetically engineered pig kidney in January 2025. In January 2026, he received a human donor kidney — the first time a pig organ has bridged a patient to a human transplant.

Updated Sep 7