Uracil/Tegafur (UTF) in CRPC

[JimmyToowong]

Oncol Rep. 2005 Sep;14(3):673-6.

Clinical outcome of oral uracil/tegafur (UFT) therapy for patients with hormone refractory prostate cancer.

Miyake H, Hara I, Yamazaki H, Eto H.

Source

Department of Urology, Hyogo Medical Center for Adults, 13-70 Kitaohji-cho, Akashi 673-8558, Japan. hideakimiyake@hotmail.com

Abstract

There is no standard therapeutic strategy for advanced hormone refractory prostate cancer after the initial hormonal therapy fails. The objective of this study was to retrospectively evaluate the clinical outcome of the oral anticancer agent, uracil/tegafur (UFT) for patients with hormone refractory prostate cancer. This study included 68 patients with hormone refractory prostate cancer treated by oral administration of UFT (300-600 mg/day). All patients had previously received maximum androgen blockade (MAB) which failed. In this series, response was defined as more than 50% decrease from the baseline prostate specific antigen (PSA) value at the start of second line therapy. Upon initiating administration of UFT, a reduction in PSA value was observed in 41 of the 68 patients (60.3%), among whom 13 (19.1%) were regarded as responders; however, PSA value continued to increase in the remaining 27 (39.7%). Median duration of PSA response was 7 months (range 1-22 months). During the observation period, there were no severe side effects due to UFT administration, but 7 patients transiently presented appetite loss. Patients without bone metastasis at the initial diagnosis or whose serum PSA value at the start of UFT therapy was less than 2.0 ng/ml showed a significantly higher incidence of PSA response to UFT; however, other factors examined had no significant impact on PSA response to UFT. Furthermore, cause-specific survival in responders to UFT therapy was significantly better than that in non-responders. These findings suggest that administration of UFT after the failure of initial MAB therapy can achieve a comparatively favorable PSA response without severe side effects; therefore, it may be worthy to consider administering UFT to patients with hormone refractory prostate cancer.

PMID: 16077973 Forum: Castrate Resistant Prostate Cancer Title: Uracil/Tegafur (UTF) in CRPC

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