Developing an on-demand nonhormonal male pill and a sperm motility test

Assessing inhibitor efficacy in vivo and developing a biomarker for use during early phase clinical trials

NIH-funded research Weill Medical Coll of Cornell Univ · NIH-11101388

Developing short-acting oral drugs men could take before sex to temporarily prevent pregnancy and a simple sperm motility test to show the drugs are working.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionWeill Medical Coll of Cornell Univ NIH-funded
Lab location1 site (New York, United States)
Project IDNIH-11101388 on NIH RePORTER

What this research studies

Researchers are making drugs that block soluble adenylyl cyclase (sAC) to stop sperm from becoming motile and fertilizing an egg. They will test optimized inhibitors in animals, including a second non-rodent model, to show the drugs work in the body. The team will validate sperm motility as a quick pharmacodynamic marker to use in early human trials. The goal is to pick a lead oral, nonhormonal candidate (with backups) that can move toward an IND and first-in-human testing.

Who could benefit from this research

Good fit: Healthy men of reproductive age interested in using or testing an on-demand nonhormonal contraceptive would be the ideal candidates for future trials.

Not a fit: People seeking permanent sterilization, women, or men with infertility who want to conceive would not benefit from this approach.

Why it matters

Potential benefit: Could give men a safe, reversible, oral nonhormonal option to prevent pregnancy on demand.

How similar studies have performed: Genetic and pharmacologic work has made male mice temporarily infertile and blocked in vitro fertilization, but human testing of this approach has not yet been completed.

Where this research is happening

New York, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.