An international study led by a Canadian researcher shows that men with advanced, incurable prostate cancer can survive an average of three months longer and face less symptoms when offered a new treatment for prostate cancer.
Published in tomorrow's issue of The New England Journal of Medicine, the study involved 24 countries and over two years tracked more than 1,000 patients with advanced hormone-refractory prostate cancer. The patients were randomly divided into three groups, with one group receiving the standard chemotherapy (mitoxantrone), while the other two groups received docetaxel either every three weeks or weekly. All three groups received low daily doses of prednisone. Researchers looked at several outcome measures - survival, pain relief, improved quality of life, and the amount of PSA in the patients' blood, which indicates the amount of cancer present in the body. In all these measures, men who received docetaxel administered every three weeks did better than those who received mitoxantrone, and it improved survival by an average of three months. There was no significant difference in survival between those patients receiving docetaxel weekly and those receiving mitoxantrone.
"The new treatment of docetaxel results in many patients feeling better and living a few months longer," said Dr. Ian Tannock, the study's lead author and medical oncologist at Princess Margaret Hospital, senior scientist with Ontario Cancer Institute, and professor with the University of Toronto. "As a result, we are recommending docetaxel every three weeks with daily prednisone as the new standard of treatment for many patients with advanced hormone-refractory prostate cancer."