Journal
CANCER CHEMOTHERAPY AND PHARMACOLOGY
Volume 86, Issue 2, Pages 203-210Publisher
SPRINGER
DOI: 10.1007/s00280-020-04110-3
Keywords
Pancreatic cancer; Gemcitabine; Nab-paclitaxel; Neutropenia; Prognostic factor
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Objectives Chemotherapy-induced neutropenia (CIN) is a common adverse event of chemotherapy. Several reports have suggested that CIN could be an important prognostic factor in chemotherapy of various cancers. However, whether CIN is a prognostic factor in unresectable pancreatic cancer (PC) treated with gemcitabine plus nab-paclitaxel (GnP) is unknown. The primary endpoint of this study was to compare overall survival (OS) between patients with severe CIN (grade >= 3) and those with absent/mild CIN (grade <= 2) in unresectable PC cases treated with GnP as first-line chemotherapy. Methods A retrospective, cohort study was conducted using data from a computerized database. A total of 290 patients with pathologically confirmed PC treated with GnP as first-line chemotherapy were analyzed (severe CIN: >= grade 3,n = 174; absent/mild CIN: <= grade 2,n = 116). Results The median OS was longer in the severe CIN group than in the absent/mild CIN group (19.2 months vs 11.3 months, respectively;P < 0.001). After adjustment, severe CIN was an independent predictive factor for OS (hazard ratio [HR], 0.53; 95% confidence interval [CI], 0.38-0.74;P < 0.001). After adjustment by time-varying covariates, severe CIN was still a significant prognostic factor for OS (HR, 0.79; 95% CI 0.69-0.91,P = 0.001). Conclusion The present results show that severe CIN is an independent and useful prognostic factor in PC patients treated with GnP.
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