What duration of ADT do you recommend for patients with high risk or very high risk prostate cancer who undergo radical prostatectomy, adjuvant RT, and adjuvant docetaxel?

Locally advanced prostate cancer remains a significant clinical challenge. The role of "adjuvant" docetaxel to follow patients receiving primary radiotherapy plus ADT has been tested in at least 5 randomized studies, with RTOG 0521 the only one to my knowledge showing survival benefit (albeit a small one). In this study 2 years of ADT was used. The setting in which the question was asked radical prostatectomy followed by adjuvant radiotherapy plus docetaxel to my knowledge has not been tested pr...