Like other countries, Japan is facing the problem of rising medical costs associated with aging of the population, and therefore the cost-effectiveness of medicines has become increasingly important. Maximum androgen blockade (MAB) therapy, which is being widely used for advanced prostate cancer, has proved useful in clinical studies but it requires the additional use of an anti-androgen in contrast with luteinizing hormone releasing hormone agonist (LHRHa) monotherapy, raising a concern about the increase medical costs. Thus, based on the results of a Japanese Phase III study of bicalutamide we performed a cost-effectiveness analysis. We constructed a Markov model to express the changes in prognosis following MAB therapy and LHRHa monotherapy for advanced prostate cancer and the cost and effectiveness (survival) were simulated. As a result, the expected costs of MAB therapy and LHRHa monotherapy were 5,240,000 yen and 3,660,000 yen, respectively, with expected survival durations of...
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