Record-breaking pig kidney transplant lasts 271 days in US patient
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Tim Andrews, Mass General Brigham
Massachusetts, USA
January 2025 - January 2026
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COMPAMIR Editorial Team
The COMPAMIR editorial team brings together public reporting and links to the original coverage. We update the page as new information emerges.
Read our editorial policy- Earlier version 19/4/2026, 3:30:54 AM
A genetically modified pig kidney functioned in a human patient for 271 days, the longest duration on record. The procedure at Mass General Brigham highlights the potential of xenotransplantation as a bridge to human organ donation. The patient, Tim Andrews, eventually received a human kidney transplant after the pig organ failed.
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