Photon Therapy Versus Proton Therapy in Early Tonsil Cancer.

This trial is comparing standard photon radiation (traditional X-ray based radiation therapy) with proton therapy (a newer, highly targeted type of radiation that delivers energy precisely to the tumor with less exposure to surrounding healthy tissue) in patients with early-stage tonsil cancer. **You may be eligible if...** - You are at least 18 years old - You have been diagnosed with squamous cell carcinoma of the tonsil (a specific type of throat cancer) that has been confirmed by tissue sampling - Your cancer has not spread widely (classified as T1-2, N0-N2b, M0 depending on your tumor's HPV/p16 status) - Your cancer has not been treated before with radiation - Your radiation treatment is aimed at cure, targeting only one side of the throat - You are in generally good health (WHO/ECOG performance score 0-1) **You may NOT be eligible if...** - Your cancer has already spread to distant parts of the body - You have received prior radiation to this area - Your cancer is too advanced for targeted one-side radiation therapy Talk to your doctor to see if this trial is right for you.