Long term results of the NRG/RTOG 9413: a key study but one of the most confusing study in prostate cancer radiotherapy!

The NRG/RTOG 9413 study has been designed in 1993 to address two major questions at that time: the benefit of whole pelvic nodes radiotherapy (WPRT) compared to “prostate only” radiotherapy (PORT) and the benefit of neoadjuvant and concomitant(NHT) versus adjuvant hormonal therapy(AHT) (1).