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High-dose radiation improves lung cancer survival, U-M study finds
Date:4/8/2009

ANN ARBOR, Mich. Higher doses of radiation combined with chemotherapy improve survival in patients with stage III lung cancer, according to a new study by researchers at the University of Michigan Comprehensive Cancer Center.

Standard treatment for this stage of lung cancer when the tumor is likely too large to be removed through surgery involves a combination of radiation therapy with chemotherapy. But, this new study finds, giving chemotherapy at the same time as the radiation enhances the effect of both. Further, increasing the dose of radiation over the course of treatment also increased survival.

"When patients are diagnosed with stage III lung cancer, surgery is often not an option, and survival rates are typically quite low. Finding new ways to improve survival, even in small increments, is crucial," says senior study author Feng-Ming Kong, M.D., Ph.D., associate professor of radiation oncology at the U-M Medical School and chief of radiation oncology at the Ann Arbor VA Healthcare System.

The study, published in the April 1 issue of the International Journal of Radiation Oncology*Biology*Physics, looked at 237 patients who had been treated for stage III non-small cell lung cancer at U-M and the VA Ann Arbor.

The researchers compared survival among patients treated with radiation alone, with radiation followed by chemotherapy, and with radiation and chemotherapy given at the same time. Thirty-one of the patients were also enrolled in a study in which the radiation dose was increased throughout the course of the treatment.

Patients treated with radiation alone had the worst overall survival rates, living only an average 7.4 months after diagnosis. Adding chemotherapy increased survival to 14.9 months when it was administered after completing radiation and 15.8 months when administered at the same time as radiation. After five years, 19.4 percent of the patients receiving concurrent chemotherapy wer
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Contact: Nicole Fawcett
nfawcett@umich.edu
734-764-2220
University of Michigan Health System
Source:Eurekalert

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