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A 62-year-old man who received a kidney transplant from a genetically modified pig has died.

Richard Slayman passed away 7 weeks after he became the first person to receive a kidney from a pig.

Slayman died at Massachusetts General Hospital in Boston, where he received the transplant, his family announced on Saturday.

The hospital also issued a statement on Saturday, saying it was โ€œdeeply saddened at the sudden passingโ€ of Slayman. The hospital suggests his body did not reject the pigโ€™s kidney. And doctors had โ€œno indicationโ€ that Slaymanโ€™s death โ€œwas the result of his recent transplant.โ€

Slayman made history on March 16 as the first human to receive a kidney transplant from a pig. He battled kidney disease for more than a decade.

His body rejected a human kidney transplant in 2018. He was on kidney dialysis for years when the Food and Drug Administration (FDA) approved the pig transplant under its โ€œcompassionate useโ€ rule.

Compassionate use approval is granted in cases where patients have a โ€œserious or immediately life-threatening disease or conditionโ€ and there are no alternative treatments, according to the FDA.

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Researchers modified the pigโ€™s genes making 69 edits to its genetic code. Modifying the pigโ€™s cells decreased the risk of Slaymanโ€™s immune system rejecting the kidney transplant.

โ€œTheir enormous efforts leading the xenotransplant gave our family seven more weeks with Rick, and our memories made during that time will remain in our minds and hearts,โ€ the family statement said.