Treatment of advanced hormone-sensitive breast cancer in postmenopausal women with exemestane alone or in combination with celecoxib
2008
Purpose Preclinical data showed that the combination of exemestane and celecoxib has synergistic effects. Therefore, a study was undertaken to explore the efficacy and tolerability of this combination in postmenopausal patients with advanced, hormone-sensitive breast cancer. Patients and Methods A randomized phase II study was conducted in postmenopausal patients with hormone-sensitive breast cancer and measurable disease who had progressive disease after treatment with tamoxifen. Patients were randomly assigned to either exemestane 25 mg daily or the combination of exemestane 25 mg daily with celecoxib 400 mg twice daily. Response Evaluation Criteria in Solid Tumors Group criteria were used to determine antitumor efficacy. Primary end point was the rate of clinical benefit. Secondary end points were tolerability, objective response rate, time to progression (TTP), and duration of clinical benefit. A pharmacodynamic and a pharmacokinetic study were conducted in parallel. Results One hundred eleven patient...
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