Dr. Nima Sharifi

PSA Rising /DALLAS/ – July 25, 2011 – UT Southwestern Medical Center researchers have narrowed the potential drug targets for advanced prostate cancer by demonstrating that late-stage tumors are driven by a different hormonal pathway than previously was thought.

“We have recently discovered that castration resistant prostate cancer (CRPC) is unexpectedly driven by dihydrotestosterone synthesis from adrenal precursors in a pathway that circumvents testosterone,” says Dr. Nima Sharifi, assistant professor of internal medicine and senior author of a  study in Proceedings of the National Academy of Sciences.

“The dominant pathway to DHT synthesis from adrenal precursors in CRPC [castration resistant prostate cancer] follows an alternative route that bypasses T and requires steroid 5α-reductase isoenzyme-1 (SRD5A1),” Dr. Sharifi writes.

February 7 2011, BUFFALO, NY — The nation’s first FDA-approved cancer treatment vaccine, Provenge (sipuleucel-T), is being offered for the first time in Western New York at Roswell Park Cancer Institute (RPCI). The vaccine is designed for men with advanced prostate cancer who have limited treatment options and who meet eligibility requirements.

Robot assisted prostate surgery, known medically as the da Vinci prostatectomy, has had a profound influence over treatment during the past decade. Robotic surgical technology was first developed by the military for use in the battlefield. However during the past decade, this technology has been rapidly applied to the general medical setting, notably in the field of prostate cancer.

Dendreon is pricing Provenge high and for the first year its availability will be low, according to a report today in Xconomy, a Seattle business website. Provenge, the first immunotherapy to win FDA approval for treatment of men with prostate cancer, will cost $93,000 per patient. Only 2,000 patients will be treated with Provenge in the first year.

SEATTLE, April 29, 2010 –Dendreon Corporation (Nasdaq: DNDN) today announced that the U.S. Food and Drug Administration (FDA) has approved PROVENGE(®) (sipuleucel-T), an autologous cellular immunotherapy for the treatment of asymptomatic or minimally symptomatic metastatic, castrate-resistant (hormone-refractory) prostate cancer (CRPC). Provenge is designed to induce an immune response against Prostatic Acid Phosphatase (PAP), an antigen expressed in most prostate cancers, and is the first in a new therapeutic class known as autologous cellular immunotherapies.

The U.S. government’s cancer research network is in severe disarray according to a report by the Institute of Medicine. Waste and inefficiency cause 40% of all late-stage government funded cancer trials to be abandoned before completion, the report found. Shannon Pettypiece at Bloomberg.com and Liz Jones at FierceBiotech say the report paints a doomladen picture.

“The system used to conduct cancer clinical trials in the U.S. is ‘approaching a state of crisis,’ with waste and inefficiency creating difficulties for those wanting to undertake these studies,” Jones writes.

In light of favorable results from the Phase 1-2 trial of MDV 3100 for advanced prostate cancer, a Phase 3 trial is enrolling at sites in the US, Canada, South America, UK, Europe, Australia, and South Africa. Results from the earlier trial are published online by the UK medical journal The Lancet.

An open-label study of Sipuleucel-T (Provenge) is ongoing at 8 centers across the USA. This is a Phase 2 Study enrolling men with Metastatic Castrate Resistant Prostate Cancer (CRPC).

The aim of this study is to measure the immune responses to treatment with sipuleucel-T (Provenge). All participants will receive the drug.

Regina Holliday prepares her supplies for a day of painting. Photo by Maggie Starbard, NPR.

Regina Holliday has painted a mural on the side of a gas station in Washington DC to tell the story of a day in her husband Fred’s struggle with broken healthcare. At ge 39, Fred was diagnosed with stage IV kidney cancer.

BY DOUGLAS SCHERR M.D.

Dr. Douglas Scherr, MD

Obesity is becoming an increasing concern with regard to prostate cancer treatment decisions as the number of patients with a Body Mass Index (BMI) of greater than 30 grows. While there hasn’t been conclusive study into the area, it has been generally found that obesity is a negative risk factor for prostate cancer.