ESTRO PT 2018

 Majority of operational US proton centers (treating adults) participating (n = 23)  Matched to 21 photon centers  Accrual projected for 2 years, but may require only 1 year  Funding will be needed for 2 nd 5 years of follow-up after PCORI Contract. PTCOG GU Subcommittee Workshop Prospective Comparison of Outcomes in Prostate Cancer Patients Treated with Photons or Protons