Peter T. Mora, 88, who conducted research for about 25 years at the National Cancer Institute and helped develop protease inhibitors, drugs used to help prolong the lives of AIDS patients, died Jan. 11 at the Bethesda Health and Rehabilitation Center. He had cancer.

His wife, Leora Mora, confirmed the death.

Dr. Mora, who retired in the mid-1980s, was a supervisor in cancer research in the National Cancer Institute’s macromolecular biology section.

Peter Tibor Mora, a native of Szolnok, Hungary, received a doctorate in chemistry from what is now Eotvos Lorand University.

In the late 1940s, he received a Rockefeller fellowship to pursue postdoctoral research in blood plasma studies at Princeton University. He became a U.S. citizen around this time.

After his work at Princeton, he was a biochemist for the DuPont chemical company in Wilmington, Del. In the mid-1950s, he won a fellowship to pursue cancer research at the University of Oxford in England.

He was a Chevy Chase resident, and his memberships included Kenwood Golf and Country Club in Bethesda.

Survivors include his wife of 61 years, Leora Knapp Mora of Chevy Chase; and a sister.

— Adam Bernstein