Personalizing an Ovulation Medication Based on Your Genes

Pharmacogenomics of an ovulation modulator and the impact on delay of ovulation

NIH-funded research Oregon Health & Science University · NIH-11132813

This project looks at how a common medication used to delay ovulation might work differently for people based on their genes.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionOregon Health & Science University NIH-funded
Lab location1 site (Portland, United States)
Project IDNIH-11132813 on NIH RePORTER

What this research studies

This project explores how a medication called ulipristal acetate (UPA), used to delay ovulation, is processed by the body. We know that a specific enzyme, CYP3A5, breaks down UPA, and some people have a more active version of this enzyme due to their genes. We believe that UPA might be less effective in preventing ovulation for those with the active CYP3A5 gene variant. We will conduct studies in a non-human model to see how UPA levels are affected within the ovary and then perform clinical studies with human participants to see if their CYP3A5 gene type influences how well UPA works.

Who could benefit from this research

Good fit: Patients who use ulipristal acetate (UPA) for ovulation modulation and are interested in understanding how their genetics might affect its effectiveness could be ideal candidates.

Not a fit: Patients not using ulipristal acetate or those whose ovulation is not being modulated would likely not receive direct benefit from this specific research.

Why it matters

Potential benefit: If successful, this work could help doctors personalize ovulation medication dosages, making it more effective for individuals based on their genetic makeup.

How similar studies have performed: While the general concept of pharmacogenomics is established, this specific link between CYP3A5 genotype and UPA efficacy in ovulation modulation is being explored in this project.

Where this research is happening

Portland, 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 2026-06-09 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.