SPL Set ID: 463050bd-2b1c-40f5-b3c3-0a04bb433309

Dulaglutide is a human GLP-1 receptor agonist. The molecule is a fusion protein that consists of 2 identical, disulfide-linked chains, each containing an N-terminal GLP-1 analog sequence covalently linked to the Fc portion of a modified human immunoglobulin G4 (IgG4) heavy chain by a small peptide linker and is produced using mammalian cell (Chinese hamster ovary) culture. The GLP-1 analog portion of dulaglutide is 90% homologous to native human GLP-1 (7-37). Structural modifications were introduced in the GLP-1 part of the molecule responsible for interaction with the enzyme dipeptidyl-peptidase-IV (DPP-4). Additional modifications were made in an area with a potential T-cell epitope and in the areas of the IgG4 Fc part of the molecule responsible for binding the high-affinity Fc receptors and half-antibody formation. The overall molecular weight of dulaglutide is approximately 63 kilodaltons. TRULICITY (dulaglutide) injection is a clear, colorless, sterile, preservative-free solution for subcutaneous use. Each single-dose pen contains a 0.5 mL solution of 0.75 mg, 1.5 mg, 3 mg, or 4.5 mg of dulaglutide and the following excipients: citric acid anhydrous (0.07 mg), mannitol (23.2 mg), polysorbate 80 (0.10 mg for 0.75 mg and 1.5 mg; 0.125 mg for 3 mg and 4.5 mg), and trisodium citrate dihydrate (1.37 mg), in water for injection.