Multi-Institutional Phase II Study of Proton Beam Therapy for Organ Confined Prostate Cancer in Japan, Focusing on the Incidence of Late Rectal Toxicities.

K. Nihei, M. Onozawa, T. Ogino, S. Murayama, H. Fuji, M. Murakami & Y. Hishikawa
Background: Proton beam therapy (PBT) for prostate cancer can provide a good dose distribution using simple bilateral opposed fields without increasing excessive doses to the rectum and bladder. But because the prospective data is lacking, it's not clear if PBT can clinically reduce the toxicities.[for full text, please go to the a.m. URL]