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Research Offers New Tool In Fight Against Prostate Cancer

Date:
May 6, 1998
Source:
University Of Michigan
Summary:
Research from the University of Michigan Comprehensive Cancer Center strongly suggests that PSA tests can reliably gauge the effectiveness of chemotherapy for advanced prostate cancer.

ANN ARBOR---Research from the University of Michigan Comprehensive Cancer Center strongly suggests that PSA tests can reliably gauge the effectiveness of chemotherapy for advanced prostate cancer.

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A reliable method of assessing a cancer patient's response to treatment is important. It shows doctors whether the prescribed therapy is working and allows them to quickly and confidently change the treatment plan when it's ineffective---and presumably improve the patient's quality of life as a result.

The U-M researchers studied 62 men with advanced prostate cancer and found that those whose PSA level declined 50 percent or more after eight weeks of chemotherapy had a significantly higher survival rate.

PSA screening tests are used to measure the level of a prostate-specific antigen in the blood---which indicates the presence of prostate cancer. They also have been used to gauge patients' response to cancer therapy, but that application has been controversial because opinions differ on its validity and precisely how to interpret test results.

The U-M researchers found that patients whose PSA levels declined at least 50 percent after eight weeks of chemotherapy survived for 91 weeks (median), compared with 38 weeks for those whose PSA level did not decline 50 percent.

The study is detailed in the May issue of the Journal of Clinical Oncology. It was conducted by David C. Smith, M.D.; Kenneth J. Pienta, M.D.; Rodney L. Dunn, M.S.; and Myla S. Strawderman, M.S.


Story Source:

The above story is based on materials provided by University Of Michigan. Note: Materials may be edited for content and length.


Cite This Page:

University Of Michigan. "Research Offers New Tool In Fight Against Prostate Cancer." ScienceDaily. ScienceDaily, 6 May 1998. <www.sciencedaily.com/releases/1998/05/980506080413.htm>.
University Of Michigan. (1998, May 6). Research Offers New Tool In Fight Against Prostate Cancer. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/1998/05/980506080413.htm
University Of Michigan. "Research Offers New Tool In Fight Against Prostate Cancer." ScienceDaily. www.sciencedaily.com/releases/1998/05/980506080413.htm (accessed January 31, 2015).

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