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Shorter radiation course for prostate cancer is effective in long-term follow-up
Date:9/26/2011

lished indicator of prostate cancer recurrence when increasing levels are seen.

Dr. Pollack said, "we are still learning how best to apply hypofractionation and the results in this trial show that the technique is very effective."

The hypofractionation approach used was given in a shorter period of time with higher doses per day and was expected to be equivalent to four extra treatments using conventional fractionation. While the hypofractionation treatment was hypothesized to be superior, the same tumor control rates were observed. The conventionally fractionated patients had better outcomes than expected. The benefit of the hypofractionation method used was that comparable results were achieved in two and a half fewer weeks of treatment.

In terms of side effects, the rates were relatively low for both methods. There were identical long-term rates of bowel/rectal reactions and the frequency of unsatisfactory erections. There was, however, significantly higher bladder control in the conventionally fractionated patients.

"Late urinary symptoms were higher with hypofractionation but were low overall, particularly when the incidence of persistent urinary symptoms (<10 percent at five years) was analyzed, rather than just as an isolated event," Dr. Pollack said. "Hypofractionation is rapidly gaining momentum for many types of cancers. The results presented here bring us much closer to effectively treating prostate cancer in a shorter period of time, with acceptable side effects."


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Contact: Beth Bukata
bethb@astro.org
703-839-7332
American Society for Radiation Oncology
Source:Eurekalert

Page: 1 2

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