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FRIDAY, Oct. 26, 2018 (HealthDay News) — For men with low- and intermediate-risk prostate cancer (PCa), stereotactic body radiation therapy (SBRT) seems safe and effective in the long term, according to a study presented at the annual meeting of the American Society for Radiation Oncology, held Oct. 21 to 24 in San Antonio, Texas.<\/p>\n
Amar U. Kishan, M.D., from the University of California, Los Angeles, and colleagues conducted a study involving 2,142 men with low- and intermediate-risk PCa who were enrolled in 10 institutional and two multi-institutional phase II trials of SBRT between 2000 and 2012. Patients were followed for a median of 6.9 years.<\/p>\n
The researchers found that 55.3, 32.3, and 12.4 percent of men had low-risk disease, favorable intermediate-risk disease, and unfavorable intermediate-risk disease, respectively. Overall, 6 percent of patients experienced biochemical recurrence (BCR) and 0.6 percent experienced distant metastases; there were no deaths from PCa. Overall, 95.5, 91.4, and 85.1 percent of patients were free from BCR at seven years in the low-risk, favorable intermediate-risk, and unfavorable intermediate-risk groups, respectively. The corresponding overall survival rates were 91.4, 93.7, and 86.5 percent, respectively.<\/p>\n
“This study should allay the fears of those who prefer to undertake a shorter treatment course that they can do so safely and with the same, positive outcomes they would receive from a longer course of treatment,” Kishan said in a statement.<\/p>\n
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