Erschienen in:
Open Access
02.11.2020 | Original Article
Effect of early tumor response on the health-related quality of life among patients on second-line chemotherapy for advanced gastric cancer in the ABSOLUTE trial
verfasst von:
Kazumasa Fujitani, Kohei Shitara, Atsuo Takashima, Keisuke Koeda, Hiroki Hara, Norisuke Nakayama, Shuichi Hironaka, Kazuhiro Nishikawa, Yutaka Kimura, Kenji Amagai, Hisashi Hosaka, Yoshito Komatsu, Ken Shimada, Ryohei Kawabata, Hideki Ohdan, Yasuhiro Kodera, Masato Nakamura, Takako Eguchi Nakajima, Yoshinori Miyata, Toshikazu Moriwaki, Tetsuya Kusumoto, Kazuo Nishikawa, Kazuhiro Ogata, Masashi Shimura, Satoshi Morita, Wasaburo Koizumi
Erschienen in:
Gastric Cancer
|
Ausgabe 2/2021
Einloggen, um Zugang zu erhalten
Abstract
Background
This study evaluated the association between early tumor response at 8 weeks, previously reported as a positive outcome prognosticator, and health-related quality of life (HRQOL) in advanced gastric cancer (AGC) patients enrolled in the ABSOLUTE trial.
Methods
HRQOL was assessed using the EuroQol-5 Dimension (EQ-5D) utility index score in patients with complete response (CR) + partial response (PR) and progressive disease (PD) at 8 weeks, and time-to-deterioration (TtD) of the EQ-5D score, with the preset minimally important difference (MID) of 0.05, was compared between these populations. Among the enrolled patients, 143 and 160 patients were assessable in weekly solvent-based paclitaxel (Sb-PTX) arm and weekly nanoparticle albumin-bound paclitaxel (nab-PTX) arm, respectively.
Results
Changes of the EQ-5D score from baseline to 8 weeks in the nab-PTX arm were 0.0009 and − 0.1229 in CR + PR and PD patients, respectively; the corresponding values for the Sb-PTX arm were − 0.0019 and − 0.1549. For both treatments, changes of the EQ-5D score from baseline at 8 weeks were significantly larger in patients with PD than in those with CR + PR. The median TtD was 3.9 and 2.2 months in patients with CR + PR and PD, respectively, for nab-PTX [hazard ratio (HR) = 0.595, 95% confidence interval (CI) 0.358–0.989]. For Sb-PTX, the corresponding values were 4.7 and 2.0 months (HR = 0.494, 95% CI 0.291–0.841).
Conclusions
Early tumor shrinkage was associated with maintained HRQOL in AGC patients on the second-line chemotherapy with taxanes.