Study summary
Proton therapy controlled cancer as well as standard radiation
81.3%progression-free at 5 years with protons, vs 76.2% with photons
What was tested
Intensity-modulated proton therapy (IMPT), against standard photon radiation (IMRT), for oropharyngeal cancer at US centers.
What they found
- Progression-free survival at 5 years was 81.3% with protons vs 76.2% with photons, meeting non-inferiority.
- At 3 years both groups were near 83%.
What it means
Supports protons as a cancer-control equivalent; whether they reduce side effects enough to justify cost is debated.
Last reviewed 2026-11-15 by the Find a Trial editorial team.
Information on this page is for educational purposes and is not medical advice.
Always consult qualified healthcare professionals about clinical trial participation.