Researchers in Hong Kong wanted to confirm the efficacy of abiraterone acetate (Zytiga) used prior to chemotherapy that had been shown in the trial setting. In their analysis they came up short; raising some very significant concerns about Zytiga’s efficacy when used prior to chemotherapy. They reviewed the clinical records of men with metastatic castrate [...]
The phase III trials for both Xtandi and Zytiga were similar. Both trials investigated men who progressed or died against placebo. Only 14% of men taking Xtandi during the trial progressed or died compared to 40% of the men in the placebo group. In the phase III trial of Zytiga 28% of the men [...]
Clinical trials have shown that there is an overall survival and radiographic progression-free survival benefit derived from abiraterone acetate (Zytiga) in the treatment of men with metastatic castration resistant prostate cancer (mCRPC). A new retrospective study published online, ahead of print, shows this trend is true regardless of a man's Gleason score at diagnosis, despite [...]
Administering chemotherapy using docetaxel (taxotere or T) on a bi-weekly basis with prednisone improved progression free survival and overall survival when compared with the standard tri-weekly schedule for men with advanced castration resistant prostate cancer (CRPC) (Lancet Oncol. 2013;14:117-124). However, quality of life (QoL) differences have not been evaluated. In a trial to evaluate the [...]
Is the FDA softening their stance on approving drugs using progression radiographic progression-free survival (rPFS) (how long it takes for the disease to progress based on scans) as opposed to only survival? The answer is maybe, under certain circumstances. An article in Clinical Cancer Research looked into the US Food and Drug Administration’s thinking about [...]
It was announced today that after observing significant benefits in overall survival (OS) and radiographic progression free survival (PFS) ,the two co-primary endpoints of the the Xtandi pre-chemotherapy trial, the Independent Data Monitoring Committee (IDMC) for The Phase 3 PREVAIL trial of enzalutamide in metastatic prostate cancer recommends that "the study be stopped and patients [...]
