Richard “Rick” Slayman, who made historical past at age 62 as the primary individual to obtain a kidney from a genetically modified pig, has died about two months after the process.

Massachusetts Normal Hospital, the place Mr. Slayman had the operation, stated in a assertion on Saturday that its transplant workforce was “deeply saddened” at his dying. The hospital stated it had “no indication that it was the results of his current transplant.”

Mr. Slayman, who was Black, had end-stage kidney illness, a situation that impacts greater than 800,000 folks in the USA, in accordance with the federal authorities, with disproportionately increased charges amongst Black folks.

There are far too few kidneys accessible for donation. Practically 90,000 individuals are on the nationwide ready record for a kidney.

Mr. Slayman, a supervisor for the state transportation division from Weymouth, Mass., had acquired a human kidney in 2018. When it started to fail in 2023 and he developed congestive coronary heart failure, his medical doctors advised he strive one from a modified pig.

“I noticed it not solely as a manner to assist me, however a manner to offer hope for the 1000’s of people that want a transplant to outlive,” he stated in a hospital information launch in March.

His surgical procedure, which lasted 4 hours, was a medical milestone. For many years, proponents of so-called xenotransplantation have proposed changing ailing human organs with these from animals. The primary downside with the strategy is the human immune system, which rejects animal tissue as international, usually resulting in critical issues.

Latest advances in genetic engineering have allowed researchers to tweak the genes of the animal organs to make them extra appropriate with their recipients.

The pig kidney that was transplanted into Mr. Slayman was engineered by eGenesis, a biotech firm primarily based in Cambridge, Mass. Scientists there eliminated three genes and added seven others to enhance compatibility. The corporate additionally inactivated retroviruses that pigs carry and may very well be dangerous to people.

“Mr. Slayman was a real pioneer,” eGenesis stated in a assertion on social media on Saturday. “His braveness has helped to forge a path ahead for present and future sufferers affected by kidney failure.”

Mr. Slayman was discharged from the hospital two weeks after his surgical procedure, with “one of many cleanest payments of well being I’ve had in a very long time,” he stated on the time.

In an announcement printed by the hospital, Mr. Slayman’s household stated he was sort, quick-witted and “fiercely devoted to his household, mates and colleagues.” They stated they’d taken nice consolation in figuring out that his case had impressed so many individuals.

“Hundreds of thousands of individuals worldwide have come to know Rick’s story,” they stated within the assertion. “We felt — and nonetheless really feel — comforted by the optimism he supplied sufferers desperately ready for a transplant.”