Chuen Yan Cheng is a Senior Scientist for the Population Council's Center for Biomedical Research. He is most well known as the inventor of the non-steroid male contraceptive drug——Adjudin, which is the first male contraceptive drug on the market now finished clinical trials showing no side effects.

Cheng's research focuses on the development of a novel contraceptive for human males. These studies currently are supported by grants from the National Institutes of Health, the CONRAD Program, and the Andrew Mellon Foundation.