Evaluating a Decreased Dose of Radiation Therapy to the Elective Neck for the Treatment of HPV-Related Oropharyngeal Cancer, ENLIGHT Trial

This clinical trial evaluates how decreasing the dose of radiation to the elective neck (areas of lymph nodes not directly involved in the cancer) impacts treatment outcomes in patients with human papillomavirus (HPV)-related oropharyngeal cancer. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shrink tumors. Radiation therapy plays an important role in the treatment of HPV-related oropharyngeal cancer, but it also causes significant toxicities. Given the significant toxicities associated with treatment, and the excellent outcomes of HPV-related oropharyngeal cancer, researchers are attempting to identify methods to de-escalate treatment for HPV-related oropharyngeal cancer in an effort to maintain excellent treatment outcomes while reducing the risk of toxicities. Reducing the dose of radiation therapy to the lymph nodes in the neck that aren't directly involved in the cancer may improve patient quality of life while still maintaining excellent rates of cure of disease.

NCT Number	NCT07178301
Lead Sponsor	Northwestern University Collaborators: National Cancer Institute (NCI)
Conditions	Clinical Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8, Clinical Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8
Enrollment	100 participants
Start Date	2025-12-05
Primary Completion	2030-03-20 (estimated)
Study Completion	2031-03-20 (estimated)
Updated on ClinicalTrials.gov	2026-07-14