Clinical and Dosimetric Predictors of Acute Toxicity After a 4-Week Hypofractionated External Beam Radiotherapy Regimen for Prostate Cancer: Results From a Multicentric Prospective Trial

Acute GU and GI toxicity were comparable with other series. Our data show that increased incidence and intensity of acute toxicity is a transient effect related to shorter overall treatment time rather than a larger effect in biological equivalent dose with respect to a conventional fractionation regime.