Department of Gastroenterology, Kanagawa Cancer Center, Yokohama, Japan.
Department of Gastroenterology, Yokohama City University Graduate school of Medicine, Yokohama, Japan.
Anticancer Res. 2023 Jun;43(6):2831-2840. doi: 10.21873/anticanres.16452.
BACKGROUND/AIM: Irinotecan and trifluridine/tipiracil (FTD/TPI) are fourth-line treatment options after third-line nivolumab for advanced gastric cancer (AGC). However, the efficacy and safety of irinotecan and FTD/TPI in the fourth-line setting after third-line nivolumab remains unclear. This study aimed to evaluate the efficacy and safety of irinotecan and FTD/TPI in the fourth-line setting after third-line nivolumab.
We identified 137 AGC patients treated with nivolumab as third-line treatment in our institute between October 2017 and July 2021. Of these, we recruited 19 AGC patients who initiated irinotecan and 23 AGC patients who initiated FTD/TPI in the fourth-line setting until September 2021.
The median overall survival was 5.83 months for irinotecan and 6.31 months for FTD/TPI. Median time-to-treatment failure was 2.07 months for irinotecan and 1.64 months for FTD/TPI. While the frequency of all-grade diarrhea was higher in irinotecan (36% vs. 17%), grade ≥3 neutropenia tended to be higher in FTD/TPI (21% vs. 35%).
Irinotecan and FTD/TPI may be clinically useful as fourth-line treatments after nivolumab.
背景/目的:伊利替康和替氟尿苷/盐酸替匹嘧啶(FTD/TPI)是三线纳武利尤单抗治疗晚期胃癌(AGC)后的四线治疗选择。然而,三线纳武利尤单抗后四线应用伊利替康和 FTD/TPI 的疗效和安全性尚不清楚。本研究旨在评估三线纳武利尤单抗后四线应用伊利替康和 FTD/TPI 的疗效和安全性。
我们在 2017 年 10 月至 2021 年 7 月期间确定了在我院接受纳武利尤单抗作为三线治疗的 137 例 AGC 患者。其中,我们招募了 19 例在四线应用伊利替康和 23 例在四线应用 FTD/TPI 的 AGC 患者。
伊利替康的中位总生存期为 5.83 个月,FTD/TPI 的中位总生存期为 6.31 个月。伊利替康的中位治疗失败时间为 2.07 个月,FTD/TPI 的中位治疗失败时间为 1.64 个月。虽然伊利替康的全级别腹泻发生率更高(36%比 17%),但 FTD/TPI 的≥3 级中性粒细胞减少症发生率较高(21%比 35%)。
伊利替康和 FTD/TPI 可能是纳武利尤单抗后四线治疗的有效药物。