
Research & Data
The public supports organ transplants from pigs
About the research
UNOS conducted an online survey to assess the public’s attitude toward xenotransplantation to measure public support and identify personal characteristics associated with acceptance. Over 1,400 adults participated between April 8 – July 8, 2024. People belonging to religious and racial minority groups were intentionally included in higher numbers so the results would more appropriately reflect the U.S. population.
UNOS received grant funding from Sanofi to conduct research about xenotransplantation. UNOS continues to conduct research on xenotransplantation as part of its mission.
What is porcine xenotransplantation?
Transplanting genetically modified pig organs into humans.
Key findings
Nearly 9/10 respondents support porcine xenotransplantation
Support varies by race, religion, political affiliation, and a person’s experience with transplantation
Black and Muslim respondents were less supportive of xenotransplantation compared to other groups
Over 60% shared concerns of patient safety or animal-derived disease transmission
Support for Xenotransplantation
Support using porcine organs
58.1% Agree
28.3% It depends
11.2% Disagree
2.4% Not sure
Would accept for self with similar risks and benefits
64.3% Agree
21% It depends
11.9% Disagree
2.7% Not sure
Would accept for loved one with similar risks and benefits
61.8% Agree
25.3% It depends
10.9% Disagree
2.1% Not sure
Why this matters
Xenotransplantation could shorten the waitlist by making more organs available for transplant. Understanding the public’s beliefs and concerns will help guide how the transplant community and the public are educated on xenotransplantation to ensure everyone has access to clear, accurate information.
What’s next
UNOS is assessing providers’ and transplant administrators’ attitudes towards xenotransplantation.
About UNOS research
UNOS conducts research as part of its mission to save and transform lives through research, innovation and collaboration.

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