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Utilization of bone densitometry for prediction and administration of bisphosphonates to prevent osteoporosis in patients with prostate cancer without bone metastases receiving antiandrogen therapy

Authors Holt A, Khan M, Gujja S, Govindarajan R

Received 11 September 2014

Accepted for publication 22 October 2014

Published 24 December 2014 Volume 2015:7 Pages 13—18


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Kenan Onel

Abby Holt,1 Muhammad A Khan,2 Swetha Gujja,3 Rangaswmy Govindarajan3

1Arkansas Department of Health, Little Rock, 2White River Health System, Batesville, 3Division of Hematology/Oncology, University of Arkansas for Medical Sciences, Little Rock, AR, USA

Background: Prostate cancer subjects with prostate-specific antigen (PSA) relapse who are treated with androgen deprivation therapy (ADT) are recommended to have baseline and serial bone densitometry and receive bisphosphonates. The purpose of this community population study was to assess the utilization of bone densitometry and bisphosphonate therapy in men receiving ADT for non-metastatic prostate cancer.
Methods: A cohort study of men aged 65 years or older with non-metastatic incident diagnoses of prostate cancer was obtained from the Surveillance Epidemiology End Results (SEER)-linked Medicare claims between 2004 and 2008. Claims were used to assess prescribed treatment of ADT, bone densitometry, and bisphosphonates.
Results: A total of 30,846 incident prostate cancer cases receiving ADT and aged 65 years or older had no bone metastases; 87.3% (n=26,935) on ADT did not receive either bone densitometry or bisphosphonate therapy. Three percent (n=931) of the cases on ADT received bisphosphonate therapy without ever receiving bone densitometry, 8.8% (n=2,702) of the cases on ADT received bone densitometry without receiving intravenous bisphosphonates, while nearly 1% (0.90%, n=278) of the cases on ADT received both bone densitometry and bisphosphonates. Analysis showed treatment differed by patient characteristics.
Conclusion: Contrary to the recommendations, bone densitometry and bisphosphonate therapy are underutilized in men receiving ADT for non-metastatic prostate cancer.

Keywords: prostatic neoplasms, androgen antagonists, bone densitometry, gonadotropin-releasing hormone, osteoporosis

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