Overview

• Baulieu passed away on May 30, 2025, at the age of 98 after a career spanning six decades in endocrinology and reproductive health.
• He developed the anti-progestin RU-486 in 1982 and secured its approval for medical abortion in France in 1988.
• Baulieu weathered legal challenges and sustained opposition from U.S. anti-abortion groups before the French health ministry ordered RU-486’s distribution.
• His pioneering work on steroid hormones earned him the Lasker Award in 1989 and led him to investigate DHEA’s potential to slow aging.
• He founded the Institut Baulieu in 2008 to fund aging research and continued publishing Alzheimer’s studies into his eighties.