Could a single chemo drug beat the standard combo for this rare cancer?

NCT ID NCT02670707

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This phase 3 trial compares two chemotherapy approaches for children and young adults with Langerhans cell histiocytosis (LCH), a rare cancer that can damage tissues. One group gets the standard two-drug combo (vinblastine/prednisone), while the other gets a single drug called cytarabine. The study aims to see which treatment better prevents the disease from getting worse or coming back over one year, and also looks at genetic markers that might predict response.

What this could mean

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

Active substance

Cytarabine (chemotherapy drug)

What this could lead to

If cytarabine works better than the current standard, it could become a new frontline treatment for LCH, potentially reducing relapse and improving survival.

What could go wrong

This is an early-stage comparison; cytarabine may not prove superior and could have side effects like low blood counts. The trial is still recruiting, so results are years away.

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.

Histiocytosis, Langerhans-Cell Langerhans cell histiocytosis

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: •••••@•••••

  • Contact

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

Locations

  • Children's Hospital of San Antonio

    RECRUITING

    San Antonio, Texas, 78207, United States

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

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

    Contact

  • Children's Hospital of The King's Daughters

    RECRUITING

    Norfolk, Virginia, 23507, United States

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

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

    Contact

  • Cook Children's Health Care System

    RECRUITING

    Fort Worth, Texas, 76104, United States

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

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

  • Dell Children's Medical Center

    RECRUITING

    Austin, Texas, 78723, United States

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

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

    Contact

  • Lehigh Valley Health Network- Cedar Crest

    RECRUITING

    Allentown, Pennsylvania, 18103, United States

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

    Contact Email: •••••@•••••

  • Nationwide Children's Hospital

    RECRUITING

    Columbus, Ohio, 43205, United States

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

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

  • Rady Children's Hospital - San Diego

    RECRUITING

    San Diego, California, 92123, United States

    Contact Email: •••••@•••••

    Contact

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

  • Stanford Children's Hospital, Lucile Packard Children's Hospital

    RECRUITING

    Palo Alto, California, 94304, United States

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

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

  • Texas Children's Hospital

    RECRUITING

    Houston, Texas, 77030, United States

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

  • University of Minnesota/Masonic Cancer Center

    WITHDRAWN

    Minneapolis, Minnesota, 55455, United States

  • Vannie Cook Children's Clinic

    RECRUITING

    McAllen, Texas, 78503, United States

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

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