American Society of Transplant Surgeons-American Society of Transplantation report of FDA meeting on regulatory expectations for xenotransplantation products

The promise of xenotransplantation: a challenge

According to many scholars, kidney xenotransplantation promises to mitigate the organ supply shortage. This claim has a certain obviousness to it: by flooding the market with a new source of kidneys, xenotransplantation promises to be a panacea. Our goal is to challenge this claim. We argue that xenotransplantation may increase rather than decrease demand for kidneys, may reduce kidney allotransplants, and may be inaccessible or otherwise unused. By offering the challenge, we hope to show deeper reflection is needed on how xenotransplantation will affect the dearth of available organs.

Engineering Equity Into the Promise of Xenotransplantation

Two of the greatest challenges facing kidney transplantation are the lack of donated organs and inequities in who receives a transplant. Xenotransplantation holds promise as a treatment approach that could solve the supply problem. Major advances in gene-editing procedures have enabled several companies to raise genetically engineered pigs for organ donation. These porcine organs lack antigens and have other modifications that should reduce the probability of immunological rejection when transplanted into humans. The US Food and Drug Administration and transplantation leaders are starting to chart a path to test xenotransplants in clinical trials and later integrate them into routine clinical care. Here we provide a framework that industry, regulatory authorities, payers, transplantation professionals, and patient groups can implement to promote equity during every stage in this process. We also call for immediate action. Companies developing xenotransplant technology should assemble patient advocacy boards to bring the concerns of individuals with end-stage kidney disease to the forefront. For trials, xenotransplantation companies should partner with transplant programs with substantial patient populations of racial and ethnic minority groups and that have reciprocal relationships with those communities. Those companies and transplant programs should reach out now to those communities to inform them about xenotransplantation and try to address their concerns. These actions have the potential to make these communities full partners in the promise of xenotransplantation.

Xenotransplantation literature update March 2023-November 2023

We present an updated report highlighting significant developments in the field of xenotransplantation since March 2023. The past six months have witnessed significant strides in the field and the emergence of novel research that is expected to facilitate the journey towards clinical trials. We are reviewing here the most pertinent findings from March 2023 to November 2023.