The Association of Docetaxel Side Effects and Introduction of Subsequent Cabazitaxel for Castration-Resistant Prostate Cancer : A Clinical Study

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  • ドセタキセルの有害事象がカバジタキセルの導入に与える影響に関する臨床的検討
  • ドセタキセル ノ ユウガイ ジショウ ガ カバジタキセル ノ ドウニュウ ニ アタエル エイキョウ ニ カンスル リンショウテキ ケントウ

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The administration of cabazitaxel for patients with castration-resistant prostate cancer (CRPC) requires prior docetaxel therapy. Sequential chemotherapy may have to be discontinued due to docetaxelassociated side effects. This study investigated the relationship between treatment outcome of docetaxel and cabazitaxel and their associated side effects. We retrospectively analyzed 69 patients with CRPC who had been administered docetaxel withand without subsequent cabazitaxel at Toyonaka Municipal Hospital from October 2014 to June 2022. Twenty-eight patients (41%) discontinued docetaxel because of side effects, and the median number of docetaxel cycles at discontinuation was 2 (range : 1-11). Fourteen of these patients received no treatment following docetaxel. A comparison of the 28 patients who had discontinued docetaxel due to side effects with 41 patients who had not revealed a significant difference in the total numbers of chemotherapy cycles (2.5 vs 9 ; P＜0.001) and time to treatment failure (56 days vs 301 days ; P＝ 0.001), with a trend toward shorter overall survival from the start of docetaxel treatment (259 days vs 512 days ; P＝0.06). Multivariate analysis identified discontinuation of docetaxel due to side effects (OR＝0.07 ; P＜0.001) and lower hemoglobin (OR＝0.01 ; P＝0.001) as significant factors inhibiting the introduction of cabazitaxel. Reducing the side effects of docetaxel, including early drug switching, may allow more CRPC patients to be reached with cabazitaxel. Consequently, the resulting taxane-based chemotherapy may contribute to an additional survival advantage.

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  • 泌尿器科紀要

    泌尿器科紀要 70 (6), 141-147, 2024-06-30

    泌尿器科学術研究会

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