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Ramucirumab for the treatment of patients with gastric or gastroesophageal junction cancer

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Published:1st Sep 2018
Author: Paulson AS, Hess LM, Liepa AM, Cui ZL, Aguilar KM, Clark J et al.
Source: Gastric Cancer
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Ref.:Gastric Cancer. 2018 Sep;21(5):831-844.

Background: Limited real-world research has investigated ramucirumab for the treatment of patients with gastric or gastroesophageal junction (GEJ) cancer. This study was designed to describe ramucirumab monotherapy or combination therapy use in a community oncology practice setting.

Methods: This was a retrospective observational cohort study to describe the treatment of adult patients with gastric or GEJ cancer who initiated ramucirumab treatment between 4/21/14 and 6/30/16 within the US Oncology Network. Kaplan-Meier method and Cox proportional hazards regression analyses were used to assess clinical outcomes. Multivariable logistic regression models were used to assess patient-level predictors of ramucirumab monotherapy or combination therapy.

Results: A total of 505 patients (mean age 64.4 years; 75.1% male) were included in the analysis; subgroups included: monotherapy (22.8%; n = 115), combination therapy (77.2%; n = 390). Monotherapy patients were significantly older (67.7 vs. 63.4 years; P = 0.0006), received ramucirumab approximately 3 months later after diagnosis (16.9 vs. 14.1 months; P = 0.0318) and more frequently initiated ramucirumab in the third or later lines of treatment (38.3 vs. 8.2%; P<0.0001) than patients receiving combination therapy. Median overall survival (OS) for monotherapy and combination therapy from the start of second-line therapy was 5.5 months (confidence interval [CI] 4.3, 7.8) and 7.4 months (CI 6.6, 8.8), respectively.

Conclusions: The results showed that patients who received ramucirumab monotherapy started ramucirumab therapy later after diagnosis and were older than those who received ramucirumab in combination. Additionally, survival data suggest that outcomes observed in community oncology practices are similar to data from phase 3 clinical trials.


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