Proton beam vs. X-Ray: which radiation is safer for throat cancer?

NCT ID NCT01893307

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 3 trial compares two types of radiation therapy for advanced throat cancer: standard photon radiation (IMRT) and newer proton beam therapy (IMPT). The goal is to see if proton therapy causes fewer severe side effects while still controlling the cancer. About 440 patients with stage III-IVB oropharyngeal cancer are taking part, and researchers are tracking side effects, survival, and quality of life.

What this could mean

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

Active substance
Proton beam therapy (IMPT) and photon radiation therapy (IMRT)
What this could lead to
If successful, this could show that proton therapy is as effective as standard radiation but with fewer severe side effects, improving quality of life for throat cancer patients.
What could go wrong
This is a large phase 3 trial, but results are not yet available. Proton therapy is more expensive and less accessible, and it may not prove significantly better than standard treatment.

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Conditions

The condition(s) this trial relates to.

oropharynx squamous cell carcinoma Squamous Cell Carcinoma of Head and Neck

As listed by the trial registrant

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

Contacts and locations

Locations

  • Emory University Hospital/Winship Cancer Institute

    Atlanta, Georgia, 30322, United States

  • Fred Hutch/University of Washington Cancer Consortium

    Seattle, Washington, 98109, United States

  • Inova Schar Cancer Institute

    Fairfax, Virginia, 22031, United States

  • M D Anderson Cancer Center

    Houston, Texas, 77030, United States

  • MD Anderson League City

    League City, Texas, 77573, United States

  • MD Anderson West Houston

    Houston, Texas, 77079, United States

  • MD Anderson in Sugar Land

    Sugar Land, Texas, 77478, United States

  • MD Anderson in The Woodlands

    Conroe, Texas, 77384, United States

  • Massachusetts General Hospital Cancer Center

    Boston, Massachusetts, 02114, United States

  • Mayo Clinic in Arizona

    Scottsdale, Arizona, 85259, United States

  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • Miami Cancer Institute

    Miami, Florida, 33176, United States

  • New York Proton Center

    New York, New York, 10035, United States

  • Northwestern Medicine Cancer Center Warrenville

    Warrenville, Illinois, 60555, United States

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35249, United States

  • University of Florida Health Science Center - Gainesville

    Gainesville, Florida, 32610, United States

  • University of Maryland/Greenebaum Cancer Center

    Baltimore, Maryland, 21201, United States

  • University of Oklahoma Health Sciences Center

    Oklahoma City, Oklahoma, 73104, United States

  • University of Pennsylvania/Abramson Cancer Center

    Philadelphia, Pennsylvania, 19104, United States

  • Wayne State University/Karmanos Cancer Institute

    Detroit, Michigan, 48201, United States

  • Willis-Knighton Medical and Cancer Center

    Shreveport, Louisiana, 71103, United States

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