Androgen-deprivation therapy is well-established for treating prostate cancer but is associated with bone loss and an increased risk of fracture. Matthew R. Smith and an international team investigated the effects of denosumab, a fully human monoclonal antibody against receptor activator of nuclear factor-{kappa}B ligand, on bone mineral density and fractures in men receiving androgen-deprivation therapy for nonmetastatic prostate cancer. In today’s New England Journal of Medicine, August 20, they report positive results:

Today’s New York Times reports:  “A unit in Philadelphia operating with virtually no outside scrutiny botched 92 of 116 prostate cancer treatments over a span of more than six years.” Dr. Gary D. Kao, according to the report, ran a “rogue” cancer unit which covered up botched procedures in which radioactive “seeds” intended for the cancerous prostate landed in the bladder or near the rectum. Dr. Kao’s team rewrote treatment plans, according to the Times, to cover up his bad aim.

Hyam Levitsky

A four part interview with  Hy Levitsky M.D., professor of oncology and tumor immunology at Johns Hopkins Medical School and co-inventor GVAX anti-cancer vaccine, is posted on Dendreon Investor Village website.

Interview conducted by rufustoehee, a dentist and Dendreon investor, published 4/22/2009.

By way of introduction, Dr Levitsky’s bio is posted alphabetically downpage among those of other speakers at Cancer Immunology & Immunotherapy 2008: From Discovery to Development to Drug.

EXCERPTS FROM INTERVIEW

Conversation with Dr. Levitsky Part 1
“. . . . how this impacts on the field of tumor immunology, I feel it will very much depend on the nature of the data they present, assuming for the sake of discussion, that this is an unequivocal and unambiguous win, then I think it will have a very significant impact. Number one, I think that unless there are aspects to this that have not been made public, I think the FDA would in this instance need to move it forward in the approval process and I think that how it ultimately gets integrated into clinical practice will be a fascinating thing to watch.

“. . . . It is important to acknowledge that tumor response is a surrogate endpoint. It is a surrogate endpoint for perhaps 2 other endpoints that might be more meaningful. One is overall survival which is the gold standard and the other perhaps is the quality of life. No one can argue that those two things have sort of the paramount importance where as to an objective 50% or greater reduction in the mean diameter of all measurable tumor masses is an interesting yard stick, but it is only a yard stick.”

SEATTLE, April 13, 2009 -Dendreon Corporation (Nasdaq: DNDN) will host a conference call tomorrow, Tuesday, April 14, 2009, at 9:00 AM ET (6:00 AM PT) to review the outcome of the FINAL analysis of its IMPACT (IMmunotherapy for Prostate AdenoCarcinoma Treatment, also known as D9902B) clinical trial of PROVENGE® (sipuleucel-T), the Company’s investigational active cellular immunotherapy for the treatment of advanced prostate cancer.

Those interested may access the call with the following information:

Time:         9:00 AM ET/6:00 AM PT

Date:          April 14, 2009

Dial-in:        1-877-419-6594 (domestic) or +1-719-325-4855 (international)

Webcast:       www.dendreon.com (homepage and investor relations section)

A recorded rebroadcast will be available for interested parties unable to participate in the live conference call by dialing 888-203-1112 or 719-457-0820 for international callers; the conference ID number is 8182435. The replay will be available from 12:00 pm ET on April 14, 2009 until midnight ET on April 16, 2009.  In addition the webcast will be archived for on-demand listening for 30 days at www.dendreon.com.

Results from a Phase 1 study of NEUVENGE, Dendreon’s candidate vaccine for breast cancer, appeared today in Journal of Clinical Oncology. Testing of Neuvenge in clinical trials runs several years behind Provenge, which is in an ongoing Phase 3 trial. Out of 18 patients with advanced breast cancer who received Neuvenge, 1 patient showed partial response for 6 months and 3 patients had stable disease lasting more than a year.

Edap TMS SA (EDAP) said it is currently conducting clinical investigations in France under an approved clinical trial combining the company’s Ablatherm-HIFU device with chemotherapy using docetaxel.

The study is a primary treatment therapy program for men suffering from clinically localized but aggressive high risk prostate cancer typically classified as stage T2c. The study began in late 2006 and the company expects to enroll up to 30 men, of which more than 10 have already been treated. More details — press release.

In submitting Provenge vaccine for the treatment of advanced prostate cancer for fast-tracked FDA approval despite aborting one clinical trial due to failure to meet the primary endpoint, Dendreon relied on meta-analysis of combined data from two parts of a phase III study, D9901. In fact, after the trials failed to meet their primary endpoint, time to progression, they were analysed twice over. Dr. Eric Small presented meta-analyses of impact on overall survival and prostate cancer specific survival and Dr. Daniel Petrylak presented a further analysis or suvival focused on a subset of patients who, when they progressed on Provenge, took Taxotere.

A link to a 5 hour video recording of the FDA Advisory Committee hearing held March 29 on sipuleucel-T (Provenge) for advanced, androgen independent prostate cancer. The video does not include the vote.

A full written transcript in .pdf including the voting is online at FDA, click here.

Oncologist Dr. Howard I. Scher has received a death threat for opposing immediate FDA approval of Dendreon’s Provenge therapeutic vaccine for prostate cancer. Another oncologist who opposes approval of Provenge without completion of an ongoing clinical trial, Dr. Maha Hussain, has received unspecified threats.

From ASCO annual general meeting, 2007, comes this abstract of a study by A. Reichle, B. Walter, A. Berand, M. Vogelhuber, K. Bross, J. Wilke, W. Wieland, R. Andreesen, S. Rogenhofer.

Background: The present multi-centre phase II study was designed to support the hypothesis that networking agents binding to ubiquitous accessible targets in metastatic hormone-refractory prostate cancer (HRPC) may counteract neoplasia-specific aberrant cellular functions, thereby mediating objective response (primary endpoint).