Proton Beam Therapy for Nasopharynx Cancer That Returns After Treatment

This trial is testing proton therapy, an advanced form of radiation treatment that targets tumors more precisely than standard radiation. Proton therapy works by directing a high-energy beam directly at the cancer cells, releasing its full power right at the tumor site—like a directed explosion—while minimizing damage to healthy tissues around it. This study is for patients with nasopharynx cancer that has come back after their initial treatment.

Standard radiation treatment (called IMRT) has helped many patients with recurrent nasopharynx cancer, but survival rates remain low and many patients experience severe side effects like tissue death in the treated area. Researchers are testing this newer, more precise form of radiation to see if it can improve survival while reducing these harmful side effects.