The Effect of Bisphosphonates on Bone Mineral Density in Metastatic Prostate Cancer Patients Who Are Treated with Anti-Androgen Drugs and Radiotherapy.

To evaluate the potential effect of bisphosphonates on bone mineral density (BMD) in patients who are treated with anti-androgen drugs and radiotherapy for metastatic prostate cancer.

The data of 31 patients with metastatic prostate cancer who were treated with anti-androgen drugs and radiotherapy during a 1-year period were retrospectively reviewed.

Patients were divided in 2 groups, in which 17 patients in group 1 were treated with zoledronic acid (4 mg/month, intravenous) and 14 patients in group 2 who did not receive zoledronic acid. BMD was measured before the treatment and at the end of the 1st year by dual energy X-ray absorptiometry. Statistical analyses were performed with the T test.

Mean age of the patients was 71. 42 ± 6. 7(range 59-85) years. A significant increase was noted for pelvic bone, femoral neck, and lumbar vertebrae t scores when pretreatment and 1st year measurements were compared in group 1 (p < 0. 05). In group 2 a significant decrease was noted for pelvic bone and femoral neck t scores at the end of the 1st year (p < 0. 05). A significant increase was noted for pelvic bone and femoral neck follow-up in BMD values at the end of the 1st year compared to initial measurements in group 1. A significant decrease was noted for lumbar vertebrae follow-up in BMD values at the end of the 1st year when compared to initial values in group 2.

Zoledronic acid significantly increases BMD and delays unfavorable outcomes for bones in men who are treated with anti-androgen drugs and radiotherapy for metastatic prostate cancer.

Current urology. 2014 Aug 20 [Epub]

Ayhan Karaköse, Mehmet B Yüksel, Özgü Aydoğdu, Bilal Gümüş, Yusuf Z Ateşçi, Zafer Akan

Izmir University School of Medicine, Department of Urology, Izmir. , Celal Bayar University School of Medicine, Department of Urology, Manisa, Turkey. , Izmir University School of Medicine, Department of Urology, Izmir. , Celal Bayar University School of Medicine, Department of Urology, Manisa, Turkey. , Izmir University School of Medicine, Department of Urology, Izmir. , Celal Bayar University School of Medicine, Department of Biopysics, Manisa, Turkey.

PubMed    Full Text Article

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