Prostate cancer is the most common malignancy in male patients. The second-generation taxanes, cabazitaxel, is a therapeutic option with an overall survival advantage for patients with metastatic castration-resistant prostate cancer.

Androgen-deprivation therapy (ADT) has been the mainstay of treatment for metastatic prostate cancer since the first report of its hormonal dependence in the 1940s. Since 2015, the addition of docetaxel and the addition of abiraterone to ADT have confered significant overall survival benefit in men with metastatic castration-naïve prostate cancer (mCNPC).

The negative results are consistent with the negative results of large phase III trials in which docetaxel plus antiangiogenic agents were used in patients with metastatic castrate-resistant prostate cancer (mCRPC).

Radium-223 has improved overall survival (OS) and reduced symptomatic skeletal events (SSE) in patients with metastatic castration-resistant prostate cancer (mCRPC) and bone metastases (ALSYMPCA trial).

Purpose: PI3K–Akt–mTOR and androgen receptor (AR) signaling are commonly aberrantly activated in metastatic castration-resistant prostate cancer (mCRPC), with PTEN loss associating with poor prognosis. We therefore conducted a phase Ib/II study of the combination of ipatasertib, an Akt inhibitor, with the CYP17 inhibitor abiraterone in patients with mCRPC.