The DBCG Proton Trial: Photon Versus Proton Radiation Therapy for Early Breast Cancer

This trial is comparing standard photon radiation therapy to proton beam radiation therapy in early breast cancer patients, to see if protons can better protect the heart and lungs during treatment. **You may be eligible if...** - You have had surgery for early breast cancer and need radiation therapy - Your planned standard radiation dose to the heart is 4 Gy or more, or your lung dose is high - You have a life expectancy of at least 10 years - Previous non-breast cancers are allowed if you have been cancer-free for at least 5 years **You may NOT be eligible if...** - You have a history of previous breast cancer or DCIS - You have had prior radiation to the chest - You are pregnant or breastfeeding - You have a pacemaker or defibrillator - You have metal implants in the radiation field - Your health makes it unsafe to complete radiation therapy or follow-up Talk to your doctor to see if this trial is right for you.