New PKU pill enters early human testing

NCT ID NCT07241234

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage trial is testing a new drug called AG-181 in 20 adults with phenylketonuria (PKU), a genetic condition that makes it hard to break down an amino acid called phenylalanine. The main goal is to check if the drug is safe and tolerable. Researchers will also measure how the drug moves through the body. Participants must have a specific genetic mutation (R408W) and high phenylalanine levels.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

AG-181 (a drug taken as a tablet)

What this could lead to

If successful, this could lead to a new treatment option to help control phenylalanine levels in people with PKU.

What could go wrong

This is an early Phase 1 trial with only 20 participants, so it is primarily testing safety. It may not show enough benefit or could have side effects. Much more research is needed.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

phenylketonuria

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Centrum Wsparcia Badań Klinicznych Pomorskiego Uniwersytetu Medycznego w Szczecinie

    RECRUITING

    Szczecin, West Pomeranian Voivodeship, 71-252, Poland

  • Indiana University

    RECRUITING

    Indianapolis, Indiana, 46202, United States

  • UPMC Children's Hospital of Pittsburgh

    RECRUITING

    Pittsburgh, Pennsylvania, 15224, United States

  • University of Texas Southwestern Medical Center (UTSW)

    RECRUITING

    Dallas, Texas, 75390, United States