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Acute pancreatitis in patients with type 2 diabetes mellitus treated with dipeptidyl peptidase-4 inhibitors: a population-based nested case-control study

Hsin-Chun Chou, Wen-Wen Chen, Fei-Yuan Hsiao
Drug Safety: An International Journal of Medical Toxicology and Drug Experience 2014, 37 (7): 521-8
24859164

BACKGROUND: Concern about an increasing risk of acute pancreatitis associated with incretin-based drugs, including dipeptidyl peptidase-4 (DPP-4) inhibitors and glucagon-like peptide-1 analogs, has emerged recently.

OBJECTIVE: This nested case-control study examined the association between the use of DPP-4 inhibitors and acute pancreatitis using Taiwan's National Health Insurance Research Database.

METHODS: From a study cohort of patients with type 2 diabetes mellitus, we identified 1,957 acute pancreatitis cases (patients who had been admitted with a diagnosis of acute pancreatitis) and 7,828 age-, sex-, and cohort entry year-matched controls between 2000 and 2011. Multivariate conditional regression models were used to estimate the association between the use of DPP-4 inhibitors and acute pancreatitis. Sensitivity analyses were conducted by varying the definitions of timing of exposure to DPP-4 inhibitors.

RESULTS: The risks of acute pancreatitis among current and past users of DPP-4 inhibitors were comparable with those of non-users (current users: adjusted odds ratio (aOR) 1.04; 95% CI [0.89-1.21]; past users: aOR 1.61 [0.93-2.77]). Similar results were found in sensitivity analyses with various definitions of "current users" of DPP-4 inhibitors. Nevertheless, the adjusted risk of acute pancreatitis was found to be increased significantly in patients with gallstone disease (aOR 5.89 [4.71-7.35]), alcohol-related disease (aOR 5.36 [4.05-7.08]), hypertriglyceridemia (aOR 1.80 [1.26-2.56]), pancreatic disease (aOR 17.29 [10.60-28.19]), and a higher Diabetes Complications Severity Index (DCSI) score (DCSI 3-4: aOR 1.49 [1.21-1.84]; DCSI≥5: aOR 1.32 [1.01-1.73]).

CONCLUSIONS: This population-based study extends previous evidence by exploring the potential association between DPP-4 inhibitor use and the risk of acute pancreatitis in an ethnic Chinese type 2 diabetic cohort. We found that underlying diseases and severity of diabetes but not DPP-4 inhibitor use were associated with acute pancreatitis.

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