On Aug. 16, 2023, surgeons at NYU Langone Health announed they had transplanted a genetically engineered pig kidney that continued to function well after 32 days in a man declared dead by neurologic criteria and maintained with a beating heart on ventilator support.

This represents the longest period that a gene-edited pig kidney has functioned in a human, and the latest step toward the advent of an alternate, sustainable supply of organs for transplant.