Has a pig transplant ever been done?

Yes, pig organ transplants, or xenotransplantation, have been conducted in research settings and clinical trials. Notably, in October 2021, surgeons at NYU Langone Health successfully transplanted a genetically modified pig kidney into a brain-dead human patient, demonstrating the organ's functionality for over two days. These experiments aim to address the shortage of human organs available for transplantation, but ethical and immunological challenges remain significant hurdles in the field.