• Am. J. Clin. Oncol. · Apr 2021

    Outcomes of Ramucirumab Plus Paclitaxel Among Patients With Previously Treated Metastatic Gastric/Lower Esophageal Cancer: A Real-world Study.

    • Omar Abdel-Rahman, Karen Mulder, and Jacob Easaw.
    • Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, AB, Canada.
    • Am. J. Clin. Oncol. 2021 Apr 1; 44 (4): 158-161.

    ObjectiveThe objective of this study was to review real-world patterns of chemotherapy utilization among patients with metastatic gastric/lower esophageal adenocarcinoma with particular focus on the use of ramucirumab plus paclitaxel in previously treated patients.MethodsThis is a retrospective, registry-based study using datasets from Alberta Cancer Registry and other provincial databases in Alberta, Canada. Multivariable logistic regression analysis was used to identify factors associated with palliative chemotherapy use. Among patients who received >1 line of chemotherapy, Kaplan-Meier survival estimates were used to compare outcomes according to ramucirumab plus paclitaxel use. Multivariable Cox regression analysis was then used to identify factors associated with overall survival (OS) in this cohort.ResultsA total of 1590 patients were included (including 1070 gastric patients and 520 lower esophageal patients). The following factors were associated with use of palliative chemotherapy: younger age (odds ratio with increasing age: 0.95; 95% confidence interval [CI]: 0.94-0.95), and lower Charlson Comorbidity Index (odds ratio with increasing index: 0.82; 95% CI: 0.74-0.91). Within the subcohort of patients who received >1 line of chemotherapy, use of ramucirumab/paclitaxel was associated with better OS (P=0.033). Multivariable Cox regression analysis suggested that the following factors are associated with better OS: use of ramucirumab/paclitaxel (hazard ratio [HR]: 1.56; 95% CI: 1.07-2.29) and living within urban zones including Calgary or Edmonton zones (vs. Northern zone) (HR for Calgary zone vs. Northern zone: 0.44; 95% CI: 0.23-0.85; HR for Edmonton zone vs. Northern zone: 0.41; 95% CI: 0.22-0.77).ConclusionsUse of paclitaxel/ramucirumab combination beyond first-line treatment is associated with improved OS among patients with metastatic gastric/lower esophageal adenocarcinoma in this real-world study. Further work is needed to reduce disparity in our health care system between individuals living in rural versus urban areas.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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