Macias VA, Perez-Romasanta LA. A clinical review on extreme hypofractionated stereotactic body radiation therapy for localized prostate cancer using nonrobotic linear accelerators.
Cancer Invest 2014;
32:191-6. [PMID:
24654695 DOI:
10.3109/07357907.2014.896015]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Seven phase I-II studies fell within the inclusion criteria. Details on the radiotherapy technique, patient selection, fractionation scheme, exclusion criteria, treatment toxicity, quality-of-life, and tumor control were collected. The studies provide encouraging results of acute and late toxicity, with rare grade 3 events, that seem comparable to robotic SBRT. The biochemical disease-free survival rates look promising, but most patients belong to the low-risk group. The trials are limited by a short follow-up, small number of patients, and different approaches in prescribing dose and defining the acceptable dose heterogeneities. Currently, nonrobotic SBRT regimens should be used in the context of clinical trials.
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