Towana Looney, a 53-year-old grandmother from Gadsden, Alabama, became the first living person to receive a kidney from a genetically modified pig.
Towana developed chronic high blood pressure during her pregnancy, which caused her remaining kidney to fail in 2016. Since then, she has been on dialysis for four hours a day, three days a week.
The pig kidney underwent 10 genetic modifications to prevent rejection by the human immune system, avoid complications like blood clots, and ensure the organs don't grow too large.
The FDA made an exception to its usual clinical study requirements, allowing Towana Looney to receive the genetically modified pig kidney through a compassionate use case since she had no other options and her immune system would reject a human kidney.
More than 100,000 people are on the waiting list for transplants in the U.S., with about 17 people dying every day without receiving one due to a shortage of human organs.
The surgery was a success, with the pig kidney producing urine and Towana Looney showing significant improvement in her condition, including the ability to eat, drink, and walk without limitations for the first time in years.
Bioethicists worry about the health of the pigs, the lack of scientific evidence supporting these surgeries, and the potential exploitation of patients who are desperate for any treatment. There are also concerns about the risk of transmitting animal viruses to humans, potentially leading to a pandemic.
Towana was discharged from the hospital less than two weeks after the surgery, earlier than expected, but she later returned for a few days due to the need for an additional anti-rejection drug.
The long-term outlook is uncertain, as this is an experimental procedure. While her kidney is currently working well, doctors remain cautiously optimistic but acknowledge that no one knows how long it will last.
The pigs were bred at the Rivercore Farm in southwest Virginia, which houses around 300 genetically modified pigs in 22 buildings.
Towana Looney became the first living person in the world to get a kidney from a new kind of genetically modified pig last month. Health correspondent Rob Stein) got exclusive access to be in the operating room.Towana is a 53-year-old grandmother from Gadsden, Ala. She's been on dialysis for four hours a day, three days a week since 2016. Her immune system would reject a human kidney. So the Food and Drug Administration made an exception to its usual clinical study requirements to allow Looney this new kind of pig kidney. But the procedure is controversial. *Interested in more environmental stories? Email us at [email protected]). We'd love to hear from you!Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave).*Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)