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J Urol. 2010 Dec;184(6):2313-9. doi: 10.1016/j.juro.2010.08.012. Epub 2010 Oct 16.

Cardiovascular safety of degarelix: results from a 12-month, comparative, randomized, open label, parallel group phase III trial in patients with prostate cancer.

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  • 1Massachusetts General Hospital Cancer Center, Boston, Massachusetts, USA.



We assessed the cardiovascular safety profile of degarelix, a new gonadotropin-releasing hormone antagonist.


This is the first report to our knowledge on cardiovascular safety data from a completed 1-year randomized controlled trial of leuprolide acetate vs degarelix. Outcomes considered in these analyses included the QT interval by central reading and analysis, and cardiovascular adverse events. On multivariate analyses relationships between selected baseline factors and cardiovascular events were evaluated.


There were no significant differences between treatment groups for mean change in Fridericia's correction of QT during the trial. Markedly abnormal Fridericia's correction of QT values (500 milliseconds or greater) were observed in only a small number of subjects by treatment group, that is 2 (less than 1%) in the pooled degarelix group and 2 (1%) in the leuprolide group. Supraventricular arrhythmias were the most common type of arrhythmias, affecting 2% of subjects in the pooled degarelix group and 4% in the leuprolide group. Other arrhythmias occurred in 1% or less of subjects by treatment group. The most frequently reported cardiac disorder was ischemic heart disease, which occurred in 4% of subjects treated with degarelix and 10% of those on leuprolide. Cox proportional hazard ratio estimates for selected baseline covariates showed a significantly increased risk of cardiovascular events by age (p=0.0459) and systolic blood pressure (p=0.0061).


In men with prostate cancer degarelix and leuprolide have similar cardiovascular safety profiles. These observations suggest that the cardiovascular events associated with both agents result from hypogonadism rather than a direct drug effect.

Copyright © 2010 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.

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