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New prostate cancer treatment convenient, less expensive, but may be riskier

Date:
March 10, 2014
Source:
Yale University
Summary:
A faster and less expensive form of radiotherapy for treating prostate cancer may come at a price, according to a new study -- a higher rate of urinary complications. "While these data are by no means definitive, our findings emphasize the need to carefully assess the impact of new cancer treatment technologies in actual practice," reported the authors.

A faster and less expensive form of radiotherapy for treating prostate cancer may come at a price, according to a new study by Yale School of Medicine researchers -- a higher rate of urinary complications.

The standard external beam radiation therapy for prostate cancer is called intensity modulated radiation therapy (IMRT). Stereotactic body radiotherapy (SBRT) is a newer treatment that delivers a greater dose of radiation per treatment than IMRT. As a result, patients receiving SBRT can complete an entire course of treatment in one to two weeks, compared to seven to nine weeks for IMRT. There have been few studies comparing the costs of these treatments, and their toxicity.

This new study -- published in the March 10 Journal of Clinical Oncology by researchers at the Cancer Outcomes, Public Policy and Effectiveness Research (COPPER) Center at Yale Cancer Center -- compared IMRT to SBRT in a national sample of 4,005 Medicare patients age 66 and older receiving prostate cancer treatment. Participants received either SBRT or IMRT as a primary treatment for prostate cancer during 2008 to 2011.

"All the reports we have about the toxicity of SBRT comes from pioneering institutions," said first author James Yu, M.D., assistant professor of therapeutic radiology at Yale Cancer Center. "But now that SBRT is being used nationally, it is important to determine the costs and complications on a national level."

Yu, senior author Cary Gross, M.D., and their colleagues found that the mean per-patient cost to Medicare for a course of SBRT was about $13,600, compared to $21,000 for IMRT. The team found that at 24 months after the start of the treatment, there were increased side effects for SBRT compared to IMRT, due to urethral irritation, urinary incontinence, and obstruction. However, even when including the cost of treating complications, the overall medical costs due to SBRT were still lower than that of IMRT.

"While these data are by no means definitive, our findings emphasize the need to carefully assess the impact of new cancer treatment technologies in actual practice," said Gross, professor of internal medicine at Yale School of Medicine, and director of the Yale COPPER Center at Yale Cancer Center.


Story Source:

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


Journal Reference:

  1. J. B. Yu, L. D. Cramer, J. Herrin, P. R. Soulos, A. L. Potosky, C. P. Gross. Stereotactic Body Radiation Therapy Versus Intensity-Modulated Radiation Therapy for Prostate Cancer: Comparison of Toxicity. Journal of Clinical Oncology, 2014; DOI: 10.1200/JCO.2013.53.8652

Cite This Page:

Yale University. "New prostate cancer treatment convenient, less expensive, but may be riskier." ScienceDaily. ScienceDaily, 10 March 2014. <www.sciencedaily.com/releases/2014/03/140310161554.htm>.
Yale University. (2014, March 10). New prostate cancer treatment convenient, less expensive, but may be riskier. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2014/03/140310161554.htm
Yale University. "New prostate cancer treatment convenient, less expensive, but may be riskier." ScienceDaily. www.sciencedaily.com/releases/2014/03/140310161554.htm (accessed July 25, 2014).

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