Metastasis-free survival as a surrogate endpoint in prostate cancer clinical trials

As many readers will have realized, the major regulatory authorities started, some time ago, to accept prostate cancer progression-free survival of differing types as a surrogate for overall survival in the approval of some drugs for the treatment of prostate cancer. … READ MORE …

Is overall survival a useful endpoint for evaluating therapies for intermediate-risk patients?

In a recent commentary, we looked at the utility of surrogate endpoints in evaluating therapies. … READ MORE …

So … what IS going to be “hot” at ASCO this year?

It appears that when it comes to the new data to be presented at ASCO this year, this will be the first time for several years that we don’t see some really groundbreaking new data from a large Phase III trial of some new form of therapy at one of the major meetings. But there is a lot of detail and a lot of information about new trials in development. … READ MORE …

Use of CTCs to assess response to abiraterone acetate at 12 weeks on therapy

Back in 2011 we reported a presentation by Scher et al. indicating that circulating tumor cell counts (CTCs) could probably be used to monitor responses to abiraterone acetate (and perhaps other forms of drug therapy) in the treatment of men with metastatic, castration-resistant prostate cancer. … READ MORE …

Can the “bone scan index” act as a surrogate marker for survival?

One of the problems with clinical trials for late-stage prostate cancer today is that we commonly need to follow all patients until death before we can collect sufficiently accurate data to be certain that a particular product is or is not effective in extending patient survival. … READ MORE …

Who needs aggressive treatment after initial radiation … and who does not?

A new report in Lancet Oncology offers guidance on which patients with prostate cancer who are initially treated with radiotherapy and 6 months of neoadjuvant androgen deprivation therapy (ADT) are at relatively high and relatively low levels of risk for prostate cancer-specific mortality. … READ MORE …

Prostate cancer news reports: Wednesday, September 23, 2009

Today’s news reports cover items on:

  • Extent and number of biopsy cores and eligibility for active surveillance
  • Intermittent vs. complete androgen deprivation
  • Hormone therapy and risk for cardiovascular disease and death
  • Surrogate markets for disease progression in men with CRPC … READ MORE …