Pfizer tests experimental pill to help older adults regain lost appetite

NCT ID NCT07086664

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage study tested an experimental drug called PF-07258669 in older adults (ages 60-89) who are at risk of malnutrition. The goal was to see if the drug is safe and how it affects the body. Participants took the drug or a placebo for 16 weeks. The study was terminated early, and only 7 people enrolled.

What this could mean

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

Active substance

PF-07258669 (oral tablet)

What this could lead to

If it works, this could point toward a treatment for unintended weight loss in older adults, helping improve appetite and nutrition.

What could go wrong

This is a very early, small Phase 1 trial in healthy volunteers, not patients. The study was terminated, so results may not be available. Safety and effectiveness are not yet known.

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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As listed by the trial registrant

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

Contacts and locations

Locations

  • AA Medical Research Center

    Flint, Michigan, 48504, United States

  • Accel Research Sites - Birmingham Clinical Research Unit

    Birmingham, Alabama, 35216, United States

  • Alpha Recherche Clinique

    Québec, Quebec, G3K 2P8, Canada

  • Bradenton Research Center, Inc.

    Bradenton, Florida, 34205, United States

  • Centre de Recherche Saint-Louis inc.

    Québec, G1W 4R4, Canada

  • Circuit Clinical

    Secaucus, New Jersey, 07094, United States

  • Circuit Clinical /North Hudson Community Action Corporation

    West New York, New Jersey, 07093, United States

  • Clinical Research Professionals

    Chesterfield, Missouri, 63005, United States

  • De La Cruz Research Center, LLC

    Miami, Florida, 33184, United States

  • Diex Recherche Inc. Division Victoriaville

    Victoriaville, Quebec, G6P 3Z8, Canada

  • Headlands Research Orlando

    Orlando, Florida, 32819, United States

  • JEM Research Institute

    Atlantis, Florida, 33462, United States

  • Javara - Nevada Health Centers - Carson City

    Carson City, Nevada, 89706, United States

  • Yao Tokushukai General Hospital

    Yao Shi, Osaka, 581-0011, Japan