Clinical implications for a treatment algorithm and differential indication to hormone therapy and chemotherapy options in metastatic castrate-resistant prostate cancer: a personal view

Although docetaxel is still considered a mainstay of treatment in metastatic castrate-resistant prostate cancer (mCRPC), in the last few years, new agents have been developed to improve survival in this setting and reach a possible optimal personalized treatment strategy. In this paper, we provide a personal view and an algorithm for mCRPC patients, according to available evidence, personal opinion and experience. Abiratone acetate, cabazitaxel, radium-223, sipuleucel-T and enzalutamide, together with docetaxel, have demonstrated a survival benefit in these patients. The use of rechallenge with docetaxel in mCRPC patients with disease progression after a first response has been considered. These new agents complicated the scenario and posed the challenge to move from the old sequential to a new algorithm-based approach. At this stage, the algorithm is necessarily based on experts' opinion, since the efficacy of a single agent in a specific setting has not been validated by sequential trials.