New hope for rare bone disease: first human trial of KK8123 begins

NCT ID NCT06525636

First seen Nov 14, 2025 · Last updated May 16, 2026 · Updated 22 times

Summary

This study tests a new drug called KK8123 for adults with X-linked hypophosphatemia (XLH), a rare genetic condition that causes low phosphate levels and bone problems. The trial has two parts: first, finding the right dose, then checking long-term safety. About 24 adults aged 18 to 65 with low blood phosphate will take part. The main goal is to see if the drug is safe and how it affects phosphate levels.

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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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Contacts and locations

Study contacts

  • Contact

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

Locations

  • Hoptial Bictre

    RECRUITING

    Le Kremlin-Bicêtre, Paris, 94275, France

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

    Contact

  • Hospital Universitario La Paz

    RECRUITING

    Madrid, 28046, Spain

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

    Contact

  • Indiana University School of Medicine University Hospital

    RECRUITING

    Indianapolis, Indiana, 46202, United States

    Contact

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

  • Institute of Osteology and Biomechanics (IOBM)

    RECRUITING

    Hamburg, 22529, Germany

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

    Contact

  • Mayo Clinic

    NOT_YET_RECRUITING

    Rochester, Minnesota, 55905, United States

  • Universitaetsklinikum Wurzburg

    RECRUITING

    Würzburg, 97074, Germany

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

    Contact

  • University of California - San Francisco

    RECRUITING

    San Francisco, California, 94158, United States

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

    Contact

  • Vanderbilt University Medical Center

    RECRUITING

    Nashville, Tennessee, 37232, United States

    Contact

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

  • Yale Center for XLH/ Yale University School of Medicine

    RECRUITING

    New Haven, Connecticut, 06510, United States

    Contact

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

Conditions

Explore the condition pages connected to this study.