NCIt definition : A glucagon-like peptide-1 (GLP-1) receptor agonist that is 90% homologous to native
human GLP-1 (7-37) and is composed of a dipeptidyl peptidase-IV-protected GLP-1 analog
covalently linked to a human immunoglobulin G4 (IgG4)-Fc heavy chain, with antihyperglycemic
activity. Upon administration, dulaglutide binds to and activates GLP-1 receptors,
thereby increasing intracellular cyclic AMP (cAMP) in pancreatic beta cells. This
increases glucose-dependent insulin release. Dulaglutide also reduces the elevated
glucagon secretion by inhibiting alpha cells of the pancreas and slows gastric emptying.
Altogether this lowers the postprandial glucose level. GLP-1 is normally secreted
by L cells of the gastrointestinal (GI) mucosa in response to a meal to normalize
blood glucose levels.;