BACKGROUND: Randomized trials have demonstrated improved survival when hormonal therapy (HT) is added to radiation therapy (RT) for high-risk prostate cancer.
However, it is still unknown whether men who have a history of myocardial infarction (MI) or MI risk factors achieve a superior outcome from HT.
METHODS: A Markov decision analysis model was used to compare quality-adjusted life expectancy (QALE) in men aged 50, 60, and 70 years who received RT and no HT, 6 months of HT (short-term), or 3 years of HT (long-term) for high-risk prostate cancer stratified by cardiac risk group.
RESULTS: In men with a history of MI, there was a decrease of 0.1 to 0.2 quality-adjusted life years and 0.5 to 0.6 quality-adjusted life years across all ages with short-term HT and long-term HT, respectively, compared with no HT. In men without MI, receipt of short-term or long-term HT was associated with a QALE benefit versus no HT in all cohorts. Among men without MI, the optimal duration of HT was a function of age and the number of MI risk factors. Long-term HT improved QALE (range, 1.4-5.4 years) for men aged 50 or 60 years except those with MI; whereas, for men aged 70 years with 4 cardiac risk factors, short-term and long-term HT yielded identical QALE.
CONCLUSIONS: Men who received RT for high-risk prostate cancer and had a history of MI experienced net harm when they received HT. Men without MI gained a QALE benefit from HT, even if they had up to 4 cardiac risk factors. The optimal duration of HT is a function of patient age and the number of cardiac risk factors.
Written by:
Lester-Coll NH, Goldhaber SZ, Sher DJ, D'Amico AV. Are you the author?
Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut.
Reference: Cancer. 2013 Feb 7. Epub ahead of print.
doi: 10.1002/cncr.27980
PubMed Abstract
PMID: 23400678
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