Navigation Links
Drug shows promise in prostate cancer spread to bone

ANN ARBOR, Mich. A new drug demonstrated dramatic and rapid effects on prostate cancer that had spread to the bone, according to a study reported by University of Michigan Comprehensive Cancer Center researchers.

About two-thirds of patients treated with cabozantinib had improvements on their bone scans, with 12 percent seeing complete resolution of uptake on bone scan. Bone scans assess the degree to which cancer is in the bone; improvements on these scans suggest a response to the drug.

"The effects of cabozantinib on bone scans are unprecedented in the treatment of prostate cancer," says lead study author David C. Smith, M.D., professor of internal medicine and urology at the University of Michigan Medical School.

Cabozantinib is designed to target two important pathways linked to the growth and spread of prostate cancer. The drug had the most effect on tumors that had spread to the bone, which is the major site where prostate cancer spreads. These tumors are typically very challenging to treat once they become resistant to hormone-based therapies.

In addition to the improvements on bone scans, 67 percent of patients with bone pain reported an improvement in pain control and 56 percent decreased or eliminated narcotic painkillers after treatment with cabozantinib. Results of the study appear in the Journal of Clinical Oncology.

The trial enrolled 171 men with castration-resistant prostate cancer, meaning their tumors no longer responded to hormone-based therapies. The study began as a randomized trial in which all patients received cabozantinib for 12 weeks, after which patients were randomized to receive continued cabozantinib or placebo. The randomization was stopped early because of the dramatic effects on bone scan, and because patients receiving placebo saw their cancer progress much more quickly than those that remained on drug.

Among the 31 patients who were randomized, cancer progressed after a median 23.9 weeks for patients taking cabozantinib, compared with 5.9 weeks for patients on placebo.

"Discontinuing randomization is not common. Stabilization of disease in advanced prostate cancer is rarely due to the natural history of the disease and is in this case due to drug effect," Smith says.

"While these initial results are promising, we are still uncertain how cabozantinib will impact the gold standard of survival," he adds.

Phase III studies have begun at some institutions, and U-M researchers are conducting a phase II study to better understand the effect cabozantinib has on bone. This drug is not offered routinely in clinical care at this time. For information about prostate cancer treatment options or clinical trials currently open at the U-M Comprehensive Cancer Center, call the Cancer AnswerLine at 800-865-1125.

Contact: Nicole Fawcett
University of Michigan Health System

Related medicine news :

1. Genetic data shows that skin cancer risk includes more than UV exposure
2. Largest coronary artery disease study shows evidence of link between inflammation and heart disease
3. U-M study shows BPA exposure in fetal livers
4. Experimental Insomnia Drug Shows Promise
5. Young adults more likely to smoke cannabis than drink before driving, 2011 CAMH Monitor survey shows
6. Research from ASCOS Quality Care Symposium shows advances and challenges in improving the quality of cancer care
7. Most Women Who Choose Double Mastectomy Dont Need To, Study Shows
8. Imaging shows some brains compensate after traumatic injury
9. MRI shows brain disruption in patients with post-concussion syndrome
10. Huddersfield professors ground-breaking research shows just how well the 2012 Games were run
11. Networks it takes a village approach improves dementia care and informs research, study shows
Post Your Comments:
(Date:6/27/2016)... , ... June 27, 2016 , ... recently awarded ... Eyeglasses . , Millions of individuals in the United States and Canada wear ... a way to both correct vision and make a fashion statement. Even celebrities use ...
(Date:6/26/2016)... (PRWEB) , ... June 26, 2016 , ... PawPaws ... a new product that was developed to enhance the health of felines. The formula ... , The two main herbs in the PawPaws Cat Kidney Support Supplement ...
(Date:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery services, can ... Surgery and to Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey ... cancer. The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern Californian, Dr. Omkar ... M.D from the David Geffen School of Medicine at UCLA. He trained in Internal ... complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had ...
(Date:6/24/2016)... Los Angeles, CA (PRWEB) , ... June 24, 2016 , ... ... plastic surgery procedures that most people are unfamiliar with. The article goes on to ... known procedures, but also many of these less common operations such as calf and ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... , June 27, 2016  VMS Rehab Systems, ... Board will take whatever measures required to build a ... stock which is currently listed on the OTC Markets-pink ... Company Chairman and CEO, "We are seeing an anomaly ... to understand, not only by the Company, but shareholders ...
(Date:6/24/2016)... SAN FRANCISCO, Calif. , June 24, 2016 ... GBT ), a biopharmaceutical company developing novel therapeutics ... significant unmet needs, today announced the closing of ... shares of common stock, at the public offering ... shares in the offering were offered by GBT. ...
(Date:6/24/2016)... , June 24, 2016 The Academy ... of recommendations that would allow biopharmaceutical companies ... with entities that make formulary and coverage decisions, a ... "value" of new medicines. The recommendations address ... not appear on the drug label, a prohibition that ...
Breaking Medicine Technology: