In this issue of JAMA Oncology, Oudard et al1 report on patients with the earliest form of potentially metastatic prostate cancer: those without castration (androgen dependent) with no detectable metastases who have developed rising prostate-specific antigen (PSA) levels. The hypothesis in 2003 was that early use of docetaxel could increase the rate of cure. Two hundred fifty patients were randomized to receive androgen-deprivation therapy (ADT) for 1 year or ADT for 1 year plus docetaxel for 6 cycles. There was no survival advantage with the addition of docetaxel or delay in the development of metastases, although there was a 15% reduction in PSA relapse. At a median follow-up of 10.5 years, survival was better than expected, there was no sign of separation of the survival curves between the treatment groups, and no significant between-arm difference in radiographic progression-free survival was noted (hazard ratio [HR], 0.99; 95% CI, 0.71-1.39; P = .95). The authors concluded that “Addition of docetaxel to androgen deprivation therapy seems unwarranted in patients with high-risk prostate cancer without metastases in the absence of better predictors of risk for metastatic disease.” Is such a conclusion warranted?
Vogelzang NJ. Adjuvant Androgen-Deprivation Therapy for Prostate Cancer: Should Docetaxel Be Added? JAMA Oncol. Published online January 31, 2019. doi:10.1001/jamaoncol.2018.6604
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