Genitourinary Cancers

Afinitor (everolimus) has been approved by the FDA for patients with advanced renal cell carcinoma after failure of treatment with sunitinib (Sutent) or sorafenib (Nexavar).

The US Food and Drug Administration (FDA) has approved everolimus (Afinitor) oral tablets for the treatment of patients with advanced kidney cancer whose disease has progressed after treatment with other cancer therapies. Everolimus is intended for patients with advanced renal cell cancer who have already tried another kinase inhibitor (sunitinib [Sutent] or sorafenib [Nexavar]).

SAN FRANCISCO-Studies show improved outcomes when androgen deprivation therapy (ADT) is part of the care for men with intermediate-risk prostate cancer, said Mack Roach III, MD, taking the “pro” side of a debate on the issue. But “con” speaker Arul Mahadevan, MD, argued that the studies in question included mostly high-risk patients, and that monotherapy is effective in intermediate-risk patients.

Polymedco, Inc, announced the availability of the BTA Stat test-a point of care technology for the early detection of recurrent bladder cancer. This method uses monoclonal antibodies to detect the presence of bladder tumor–associated antigen in urine. It is a single-step, rapid immunochromatographic assay for bladder tumor-associated antigen in voided urine.

Ferring Pharmaceuticals received approval from the US Food and Drug Administration (FDA) for degarelix, a new injectable gonadotropin-releasing hormone (GnRH) receptor antagonist indicated for patients with advanced prostate cancer.

A study of nearly 1,500 patients treated for kidney cancer at UCLA in the past 15 years shows that an aggressive, tailored treatment approach results in better survival rates and uncovered subsets of kidney cancer that behave differently and need to be treated accordingly.

For men with locally advanced prostate cancer, the addition of radiation treatment to antiandrogen hormone therapy reduces the risk of dying of prostate cancer by 50% compared to those who have antiandrogen hormone treatment alone, according to a randomized study presented September 22, 2008, during the plenary session of the American Society for Therapeutic Radiology and Oncology’s 50th Annual Meeting in Boston.

Men over 70 years of age with early-stage prostate cancer have a 20% higher mortality if they are treated first with hormone therapy before being treated with radiation seed implants (brachytherapy), compared to men who are treated with brachytherapy alone, according to the largest cohort study of its kind presented September 23, 2008, at the 50th Annual Meeting of the American Society for Therapeutic Radiology and Oncology in Boston.

The advisory committee tothe UK’s National Health Service(NHS) has recommended that theNHS not pay for four new agentsproven effective in metastatic renalcell carcinoma. The four drugs arebevacizumab (Avastin), sorafenib(Nexavar), sunitinib (Sutent), andtemsirolimus (Torisel).

Patients with advanced renal cell carcinoma (RCC) treated with single-agent, oral sunitinib malate (Sutent) reported experiencing significantly lower severity of symptoms like bone pain and breathlessness, among others, than patients treated with interferon-alfa.

The lead investigator in an evaluation of bevacizumab (Avastin) combined with sunitinib malate (Sutent) for renal cell carcinoma (RCC) said the project would be abandoned. FDA issued a product safety alert after Genentech, Avastin’s developer, reported serious complications in several patients enrolled in the phase I trial.

A combination of two antiangiogenic agents-bevacizumab (Avastin) and thalidomide (Thalomid)-with docetaxel (Taxotere) is associated with a median progression-free survival of about a year and a half among men with metastatic, hormone-refractory prostate cancer, finds a phase II trial presented at ASCO 2008 (abstract 5000).

This is an expertly written summary of the experience with cryotherapy as primary treatment of prostate cancer and the rationale for proceeding toward more limited, organ-sparing approaches with this procedure as focal treatment for low-risk cancers. Growing evidence of overdetection and overtreatment in many men with low-risk tumors has resulted in the recognition that alternatives to conventional treatment strategies are needed. Observation, a laudable and appropriate approach, appeals to relatively few patients.

The article by Polascik and coauthors provides a timely synopsis of modern technologic advances in prostate cryoablation and a review of the rationale for and experience with targeted prostate treatments. Prostate cryoablation has a storied past, which can be briefly summarized as high excitement followed by near-complete abandonment. Fortunately, a few practitioners improved the technique and incorporated new technologies allowing for its resurrection.

Wyeth Pharmaceuticals recently announced the initiation of the INTORACT (INvestigation of TORisel and Avastin Combination Therapy) study, a worldwide randomized, open-label, phase IIIB study comparing temsirolimus (Torisel) plus bevacizumab (Avastin) vs bevacizumab plus interferon-alfa for first-line treatment of patients with advanced renal cell carcinoma (RCC). Wyeth Research is conducting the INTORACT study with the support and assistance of Roche and Genentech

CHICAGO-The combination of custir-sen sodium (OGX-011, OncoGenex Technologies Inc), an investigational agent, with docetaxel (Taxotere) or mitoxantrone has acceptable toxicity in patients with hormone-refractory prostate cancer who have experienced a failure of first-line docetaxel-based chemotherapy, investigators reported at ASCO 2008 (abstract 5002). Efficacy outcomes were somewhat better with the custirsen/docetaxel combination.

A multicenter study has found that the experimental targeted therapy everolimus (Cetican, RAD001) delays cancer progression in patients with metastatic kidney cancer that has progressed despite treatment with other targeted therapies. Lead author Robert J. Motzer, md, attending physician at Memorial Sloan-­Kettering Cancer Center, presented the results at the ASCO meeting (abstract LBA5026).

The first randomized trial to evaluate the long-term outcome of treatment with a single dose of chemotherapy for early-stage testicular tumors has found that the approach is safe, effective, and less toxic compared to radiation therapy, the current standard of care. The study, the largest ever in testicular cancer, also showed that after 5 years, patients receiving chemotherapy had a decreased risk of developing a second tumor in the other testicle, though longer follow-up is needed. The data were presented by R.T. Oliver, md, professor emeritus of medical oncology at St. Bartholomew’s Hospital in London and the study’s lead author, at the ASCO plenary session (abstract 1).

External-beam radiation is a highly effective curative treatment option for men with localized prostate cancer.[1,2] Over the past several decades, efforts have been made to improve the “therapeutic ratio” of radiation by increasing dose to improve cure rates without causing a substantial increase in side effects. Due to its potential to create superior dose distributions, proton therapy is considered by many to be the best available form of external radiation therapy. Here we will critically examine the evidence supporting the use of protons in the treatment of prostate cancer.

MILAN-Some men with nonseminoma germ cell tumor (NSGCT) testicular cancer have a normalization of tumor markers and minimal or no residual masses in the retroperitoneum after chemotherapy. What then? Should all of them undergo retroperitoneal lymph node dissection (RPLND) to be on the safe side, or should the procedure be reserved for selected cases? Leading researchers in urology debated this topic at the 23rd Annual Congress of the European Association of Urology (plenary session 1).

Financial pressures from Medicare reimbursement changes may have caused physicians to switch from providing hormonal-induced castration to providing surgical castration for men with prostate cancer. That is the finding of a new study published in the May 15 issue of CANCER. The study suggests that factors other than evidence-based medicine may have a significant influence on treatment decisions.

NEW YORK-Antigenics Inc.’s personalized cancer vaccine Oncophage (vitespen) has received its first government approval.

A drug proven effective in a large randomized prostate cancer prevention trial is rarely used for that indication. ONI explores the economic and clinical reasons underlying the agent's lack of use.

Drs. Rini and Bukowski do an excellent job of updating and commenting on the rapidly evolving field of therapy for metastatic renal cell carcinoma (RCC).

An independent data monitoring committee stopped a phase III clinical trial of the investigational mTOR inhibitor everolimus (RAD001) after interim results showed significantly better progression-free survival in patients with advanced kidney cancer who received the drug, compared with placebo.