Double-Blind Multicenter Randomized Clinical Trial Comparing Glucagon vs Placebo in the Resolution of Alimentary Esophageal Impaction

INTRODUCTION:The aim of this study was to compare the effectiveness of glucagon vs placebo in resolving esophageal foreign body impaction (EFBI), as well as the length of the procedure and adverse events. METHODS:This was a multicenter, randomized, double-blind trial involving consecutive patients diagnosed with alimentary EFBI. Participants were randomized to receive either 1 mg of intravenous glucagon or placebo. All patients underwent upper endoscopy, and adverse events were assessed through a protocolized telephonic interview 7 days later. RESULTS:The study included 72 subjects in the glucagon group and 68 in the placebo group. The foreign body was not identified in 23.6% of subjects in the glucagon group and 20.6% of subjects in the placebo group (difference 3%, 95% confidence interval -10.7% to 16.8%, P = 0.67). The median time required to remove the foreign body was similar in both groups 4 minutes (range 2-10) in the glucagon group and 3.5 minutes (range 2-7) in the placebo group (difference 0.5 minutes, 95% confidence interval -1.3 to 2.3; P = 0.59). The most common adverse event reported in both groups was mild pharyngeal pain. DISCUSSION:Glucagon is no more effective than placebo in resolving EFBI or shortening the time required to remove the foreign body (EUDRA-CT number 2019-004920-40).