Abstract
Objective: Albiglutide, a glucagon-like peptide-1 receptor agonist (GLP-1RA), reduces glycated hemoglobin with a low risk of hypoglycemia in patients with type 2 diabetes. The relationship between GLP-1RAs and risk of pancreatitis is unresolved. This independent, rigorous, expert review of the albiglutide HARMONY Phase III clinical program examined suspected cases of acute pancreatitis. Methods: An independent pancreatitis adjudication committee (PAC), composed of physicians with expertise in gastroenterology and pancreatic disease, was prospectively established to review cases of suspected acute pancreatitis in the HARMONY studies. Results: Patients treated in Phase III trials with albiglutide (n = 2,365), or active or placebo comparators (n = 2,530), averaged 56 years of age with a mean 8.3-year diabetes duration. Across the 8 studies, the PAC reviewed potential cases of treatment-emergent acute pancreatitis in 43 patients. Definite or probable acute pancreatitis was adjudicated for 11 patients (8 albiglutide; 3 active comparators). Most of these were considered by the PAC to be at least possibly related to study treatment (6 of 8 albiglutide cases and 2 of 3 active comparator cases). Both cases in the active comparator group adjudicated as definite or probable pancreatitis with at least a possible relationship to study treatment were in patients treated with a GLP-1RA. The frequency of pancreatitis was higher among patients treated with albiglutide (6/2,365, 0.3%) than with placebo (0/486, 0%) or active comparators (2/2,062, 0.08%). Conclusion: In the HARMONY Phase III program, adjudicated cases of acute pancreatitis were uncommon. However, within the limitations of available data, the incidence of acute pancreatitis with albiglutide appears to be within the range described for other studies of GLP-1RAs. Abbreviations: AE = adverse event; CI = confidence interval; DPP-4 = dipeptidyl peptidase-4; GLP-1 = glucagon-like peptide-1; GLP-1RA = glucagon-like peptide-1 receptor agonist; MH-OR = Mantel-Haenszel odds ratio; OR = odds ratio; PAC = pancreatitis adjudication committee; SAE = serious adverse event; ULN = upper limit of normal.
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