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World J Clin Oncol. 2017 Oct 10;8(5):389-397. doi: 10.5306/wjco.v8.i5.389.

Stereotactic radiotherapy for prostate cancer: A review and future directions.

World journal of clinical oncology

Yusef A Syed, Ami K Patel-Yadav, Charlotte Rivers, Anurag K Singh

Affiliations

  1. Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA 30342, United States.
  2. Department of Radiation Oncology, University at Buffalo, Buffalo, NY 14263, United States.
  3. Department of Radiation Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, United States.

PMID: 29067275 PMCID: PMC5638714 DOI: 10.5306/wjco.v8.i5.389

Abstract

Prostate cancer affects over 200000 men annually in the United States alone. The role of conventionally fractionated external beam radiation therapy (RT) is well established as a treatment option for eligible prostate cancer patients; however, the use of stereotactic body radiotherapy (SBRT) in this setting is less well defined. Within the past decade, there have been a number of studies investigating the feasibility of SBRT as a potential treatment option for prostate cancer patients. SBRT has been well studied in other disease sites, and the shortened treatment course would allow for greater convenience for patients. There may also be implications for toxicity as well as disease control. In this review we present a number of prospective and retrospective trials of SBRT in the treatment of prostate cancer. We focus on factors such as biochemical progression-free survival, prostate specific antigen (PSA) response, and toxicity in order to compare SBRT to established treatment modalities. We also discuss future steps that the clinical community can take to further explore this new treatment approach. We conclude that initial studies examining the use of SBRT in the treatment of prostate cancer have demonstrated impressive rates of biochemical recurrence-free survival and PSA response, while maintaining a relatively favorable acute toxicity profile, though long-term follow-up is needed.

Keywords: Hypofractionation; Prostate cancer; Radiation therapy; Stereotactic ablative radiotherapy; Stereotactic body radiotherapy; Toxicity

Conflict of interest statement

Conflict-of-interest statement: There are no conflicts of interest for any of the above listed authors.

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