World First! Pig Kidney Keeps Patient Alive for 9 Months Before Human Transplant

A remarkable medical milestone has been achieved, offering a beacon of hope for patients awaiting organ transplants worldwide. For the first time ever, a genetically modified pig kidney successfully sustained a living human patient for nine months, serving as a crucial "bridge" until a human donor organ became available.

This groundbreaking achievement marks the longest dialysis-free survival after a pig kidney transplant and the first successful transition from an animal organ to a human one. The recipient of this pioneering procedure was Tim Andrews, a 66-year-old man suffering from end-stage kidney disease. Mr.

Andrews received the genetically edited pig kidney in January 2025 at Massachusetts General Hospital in the US.

For an impressive 271 days, the animal organ functioned effectively, allowing him to stay off dialysis. Following this period, he transitioned to short-term dialysis before ultimately receiving a human donor kidney, a testament to the pig organ's efficacy as a temporary life-sustaining solution.

The findings from this world-first operation, led by a team from Mass General Brigham academic centers and hospitals, were published in the prestigious Lancet medical journal. Dr. Leonardo Riella, lead author and a key figure from the Center for Transplantation Sciences at Mass General Brigham, emphasized the critical need for such innovations. "The organ shortage is the greatest crisis we have right now in transplantation," Dr.

Riella stated.

While transplantation remains the best treatment for end-stage kidney disease, the lack of available human organs is a significant barrier.

Dr. Riella elaborated on the vision behind xenotransplantation, the process of transplanting organs or tissues between different species.

He hopes that this technology could initially serve as a "bridge" to keep patients alive and off dialysis while they await a human donor kidney. Looking further ahead, with continued research into safety and durability, xenotransplantation could potentially evolve into a "destination therapy", a permanent solution in its own right, revolutionizing treatment for countless patients globally.

This historic success paves the way for a future where organ scarcity might no longer be a death sentence.

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