Evaluation Of Sexual Function On A Randomized Trial Of A Prostate Rectal Spacer.

69Background: The SpaceOAR phase 3 trial showed that a hydrogel spacer between the prostate and rectum decreased rectal dose and toxicity while improving bowel quality of life (QOL) after image guided prostate IMRT to 79.2 Gy. Here we evaluated dose to penile bulb as well as sexual function on this trial Methods: Sexual QOL was measured with the Expanded Prostate Cancer Index Composite (EPIC) by mean summary scores and the proportion of patients with a minimally important decline (MID) (11 points). Stratification was based on severe erectile dysfunction (ED)(EPIC 0.1). At 3 years avera...