Objective This double-blind, placebo-controlled phase 3 study was designed to compare efficacy and safety of abiraterone acetate + prednisone (abiraterone) to prednisone alone in chemotherapy-naïve, asymptomatic or mildly symptomatic metastatic castration-resistant prostate cancer (mCRPC) patients from China, Malaysia, Thailand and Russia. Methods Adult chemotherapy-naïve patients with confir...

Prostate cancer is a common cancer and it causes significant morbidity and mortality in elderly males. Management for metastatic castration resistant prostate cancer has improved tremendously over the last decade with newer agents improving overall survival and quality of life of patients. Until recently, docetaxel was the only agent to show an improvement in overall survival in patients with m...

BACKGROUND Abiraterone acetate (an androgen biosynthesis inhibitor) plus prednisone is approved for treating patients with metastatic castration-resistant prostate cancer (mCRPC). Study COU-AA-302 evaluated abiraterone acetate plus prednisone versus prednisone alone in mildly symptomatic or asymptomatic patients with progressive mCRPC without prior chemotherapy. OBJECTIVE Report the prespecif...

Introduction Transient decrease in serum prostate-specific antigen level can occur after abiraterone acetate withdrawal male patient with metastatic castration-resistant prostate cancer. Here, we report a case of syndrome transient progression to disease while using upfront therapy for high-risk Case presentation A 73-year-old man hormone-sensitive cancer multiple bone metastases (prostate-spec...

Ductal adenocarcinoma of the prostate is a rare histological variant that only represents <1% of prostate tumors. This histological variant has several important clinical implications with respect to their evolution, clinical prognosis, and treatment. We report the case of a 64-year-old patient with ductal adenocarcinoma of the prostate, which progresses to castration-resistant prostate cancer,...

BACKGROUND Abiraterone acetate, an androgen biosynthesis inhibitor, improves overall survival in patients with metastatic castration-resistant prostate cancer after chemotherapy. We evaluated this agent in patients who had not received previous chemotherapy. METHODS In this double-blind study, we randomly assigned 1088 patients to receive abiraterone acetate (1000 mg) plus prednisone (5 mg tw...

BACKGROUND Abiraterone acetate improved overall survival in metastatic castration-resistant prostate cancer at a preplanned interim analysis of the COU-AA-301 double-blind, placebo-controlled phase 3 study. Here, we present the final analysis of the study before crossover from placebo to abiraterone acetate (after 775 of the prespecified 797 death events). METHODS Between May 8, 2008, and Jul...

to show a definite clinical benefit is abiraterone acetate. Abiraterone acetate, and its active metabolite abiraterone, are potent, selective and irreversible inhibitors of CYP17 ahydroxylase and C17,20-lyase that catalyse two essential steps in androgen biosynthesis [6]. Abiraterone markedly decreases levels of androgens in CRPC and initial phase I and II clinical trials showed promising activ...

LESSONS LEARNED The combination of standard dose abiraterone acetate and BEZ235, a pan-class I PI3K and mTORC1/2 inhibitor, was poorly tolerated in men with progressive mCRPC.Although the clinical development of BEZ235 has been discontinued in prostate cancer, agents that more selectively target PI3K-AKT-mTOR signaling may have a more favorable therapeutic index and should continue to be explor...

Purpose: Gene fusions leading to androgen receptor–modulated ERG overexpression occur in up to 70% of metastatic castration-resistant prostate cancers (mCRPC). We assessed the association between ERG rearrangement status and clinical benefit from abiraterone acetate. Experimental Design: COU-AA-302 is a phase III trial comparing abiraterone acetate and prednisone versus prednisone in chemothera...