Clinical trial of pig kidney transplants

 A clinical trial is good news.

The NYT has the story:

F.D.A. Approves Studies of Pig Organ Transplants for Kidney Patients
The research offers hope to tens of thousands of patients with kidney failure who are on a long waiting list for an organ transplant. By Roni Caryn Rabin  Feb. 3, 2025

"The U.S. Food and Drug Administration has given the green light to two biotechnology companies for clinical trials that will transplant organs from genetically modified pigs into people with kidney failure. If successful, these studies could lead to the broader use of cross-species transplantation, a dream of medical scientists for centuries.

One of the companies, United Therapeutics Corporation, will begin its trial with six patients, but that number could eventually rise to 50. The other, eGenesis, said it would begin with three patients and grow the study from there.

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"Over the past three years, five patients have been known to receive organs from pigs engineered by these companies — two who received hearts and three who received kidneys. But these surgeries were not part of a formal clinical trial.

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"The United Therapeutics study, which is expected to begin midyear, will start with six patients who have been on dialysis for at least six months but do not have other serious medical problems. There will be a three-month waiting period between each transplant so that doctors can learn from the outcomes.

If the first six transplants are successful, the trial will expand to include up to 50 participants in what is called a phaseless trial — a type of study that combines the traditional Phase 1, Phase 2 and Phase 3 trials and can lead directly to approval."