Impact of Angiotensin Receptor Blocker Use on Overall Survival Among Patients Undergoing Resection for Pancreatic Cancer.
Pancreatic cancer has higher concentrations of angiotensin II compared with other cancers. This study sought to assess the effect of angiotensin II receptor blockers (ARBs) on survival of patients undergoing resection using a large, nationally representative dataset.
Patients undergoing pancreatic cancer resection were identified in the Truven Health MarketScan database. Multivariable Cox proportional hazards regression was used to assess the effect of ARB use on overall survival.
A total of 4299 patients were identified, among whom 479 (11.1%) filled a prescription for an ARB. Mean patient age was 54.5 years (SD = 8.6 years); 2187 (51.1%) were female. Exactly 49.4% (n = 2125) of patients had a Charlson comorbidity index >2 at the time of surgery (n = 2125, 49.4%) and 59.6% (n = 2563) underwent a pancreaticoduodenectomy. Kaplan-Meier estimates of survival at 1, 2, and 4 years were 62.8% (95% CI: 61.3-64.2%), 38.2% (95% CI: 36.6-39.8%), and 19.0% (95% CI: 17.1-21.0%), respectively. On multivariable analysis, ARB use was associated with a 24% decreased risk of death over the 5-year period in which patients were under observation (HR = 0.76, 95% CI: 0.67-0.87, p < 0.001).
ARB use was associated with improved survival in patients undergoing resection of pancreatic cancer. Further research is required into the differential effect of ARBs in the treatment of pancreatic cancer.
Cerullo, M; Gani, F; Chen, SY; Canner, JK; Pawlik, TM
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