イイヅカ　ジユンペイ   Iidzuka Jiyunpei   飯塚　淳平    所属   医学部 医学科（東京女子医科大学病院）    職種   准教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Negative effect of immediate sunitinib interruption on survival in patients with metastatic renal cell carcinoma.
掲載誌名	正式名：In vivo (Athens, Greece) 略　 称：In Vivo ISSNコード：0258851X/17917549
掲載区分	国外
巻・号・頁	33(6),pp.2153-2160
著者・共著者	ISHIYAMA Ryo†, ISHIHARA Hiroki*, KONDO Tsunenori, TAKAGI Toshio, YOSHIDA Kazuhio, IIZUKA Jumpei, KOBAYASHI Hirohito, OKUMI Masayoshi, ISHIDA Hideki, TANABE Kazunari
発行年月	2019/11
概要	BACKGROUND:Treatment modification due to adverse events reduces the dose intensity in cancer treatment. The prognostic impact of sunitinib treatment interruption within the initial period of therapy for metastatic renal cell carcinoma (mRCC) remains unknown.PATIENTS AND METHODS:We retrospectively evaluated 97 patients with mRCC treated with first-line sunitinib treatment. The patients were classified into two groups according to the presence of treatment interruption (TI) within the initial two cycles. The prognostic impact of TI was analyzed using the Kaplan-Meier method and log-rank test, and multivariate analyses using the Cox proportional hazard model.RESULTS:Thirty-eight patients (39.2%) experienced an immediate TI. The median progression-free (PFS) and overall (OS) survival were significantly shorter in patients with a TI than in those without (PFS= 6.54 vs. 11.3 months, p=0.0246; OS=16.9 vs. 30.0 months, p=0.0420). Multivariate analyses for PFS and OS showed that TI was an independent factor predicting poorer PFS (hazard ratio(HR)=1.93, p=0.0141) and OS (HR=2.09, p=0.0102). In addition, the relative dose intensity within the initial two cycles was significantly lower in patients with a TI than in those without (52.7% vs. 75.0%, p<0.0001).CONCLUSION:This study showed the significantly negative effect of immediate TI on survival of patients under sunitinib treatment for mRCC. Therefore, the careful monitoring of patient tolerability is required in order to maintain therapeutic efficacy in the early phase of sunitinib treatment.
DOI	10.21873/invivo.11717
PMID	31662551