[REVISION HISTORY]

Pig kidney xenotransplantation milestone

Updated 1 time since CLSTR started tracking revisions of this situation.

What changed

2026-09-13 06:41 UTC → 2026-09-14 02:40 UTC · added ~~removed~~

A 66-year-old patient, Tim Andrews, achieved a medical milestone by surviving for 271 days without dialysis using a genetically modified pig kidney. The organ, nicknamed ‘Wilma’, was engineered by biotechnology company eGenesis using 69 genetic edits to reduce immune rejection and inactivate retroviruses. While the xenotransplant served as a critical bridge to keep Andrews alive while he waited for a compatible human organ, the pig kidney eventually failed due to damage in its blood vessels after approximately nine months. The procedure concluded when Andrews successfully received a human kidney transplant in January 2026. Researchers suggest this technology could eventually alleviate the shortage of available human organ ~~donors.~~ donors, noting that prior to this procedure, Andrews had only a 9% chance of receiving a human kidney within five years.

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