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Dutasteride not a cost-effective way to prevent prostate cancer in some men

DALLAS Feb. 8, 2011 The popular drug dutasteride may not be a cost-effective way to prevent prostate cancer in men who are at elevated risk of developing the disease, according to findings by a UT Southwestern Medical Center researcher.

In a study available in the January issue of Cancer Prevention Research, investigators found that the medication, at an annual cost of $1,400, is impractical when compared to the marginal impact on survival and quality of life in at-risk groups. The drug is indicated for the treatment of enlarged prostates but also is widely prescribed for chemoprevention.

"Because prostate cancer is the most common cancer in men, the implications of this data are significant since there could be millions of men who would be eligible for anti-cancer drugs," said Dr. Yair Lotan, associate professor of urology at UT Southwestern. "Prior to instituting a chemoprevention strategy to a large population, the utility and cost need to be well understood. Whether a medication improves survival, how it affects quality of life, and what its financial implications will be are all critical issues. Because dutasteride typically is prescribed for the lifetime of the patient, and therefore taken daily for decades, the cost issue is particularly relevant."

Prior research has shown that dutasteride reduced the relative risk of prostate cancer over a four-year period by 22.8 percent, but questions have remained about its cost-effectiveness. The current study analyzed the lifetime health-related costs of the drug in patients at greater risk of developing prostate cancer and compared them to other factors, such as quality and length of life.

Dr. Lotan and his colleague, Dr. Robert Svatek of UT Health Science Center at San Antonio, used a Markov probability model to compare the lifetime cost of taking dutasteride with no therapy. They used data from a previous trial and studies that evaluated outcomes of patients with prostate cancer, including treatment-related complications to create the model. The primary outcome was measured in quality-adjusted life years (QALY), which takes into account both quality and quantity of life.

"The study found that dutasteride was not cost-effective for chemoprevention unless and until a strategy is developed for targeting very high-risk patients and the cost of the drug decreases," said Dr. Lotan. "For the average man, the drug provides minimal survival benefits, and the reduction on treatment-related complications does not compensate for the high costs of every man taking the drug for many years."


Contact: Rachel Skei Donihoo
UT Southwestern Medical Center

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