Proton Collaborative Group

This study tests a new way to give proton radiation for stage II-III non-small cell lung cancer. Instead of daily low doses over many weeks, patients get higher doses over a shorter time (hypofractionation) along with standard chemotherapy. The goal is to find the safest high dos…

This study compares two ways of giving proton radiation to men with low-risk prostate cancer. One group gets the standard 44 treatments over about 9 weeks, while the other gets just 5 treatments over 1-2 weeks. The goal is to see if the shorter course works as well at keeping the…

This study tests a precise type of radiation called proton therapy given after surgery for stage II/III breast cancer. The goal is to see if it can effectively treat cancer while reducing damage to the heart and other organs. About 220 women will receive this treatment and be fol…