Peptides Codex
Home
GLP-1 receptor agonist (Fc-fusion protein)

Dulaglutide

Dulaglutide is a GLP-1 receptor agonist in which two modified GLP-1 peptide chains are fused to a human immunoglobulin (IgG4) Fc fragment. The large fusion greatly extends half-life, allowing once-weekly dosing. It is an approved prescription drug, and this page is educational only.

By The Peptides Codex Editorial TeamReviewed July 10, 2026
Length
n/a
Class
GLP-1 receptor agonist (Fc-fusion protein)
Function
Incretin-mimetic signaling at the GLP-1 receptor
Context
Prescription medicine approved in Canada, the US and EU

A once-weekly GLP-1 agonist built as an antibody-fragment fusion.

Also known as: Trulicity

Part of the Metabolic & GLP-1 peptides cluster

Overview

Dulaglutide is a GLP-1 receptor agonist in which two modified GLP-1 peptide chains are fused to a human immunoglobulin (IgG4) Fc fragment. The large fusion greatly extends half-life, allowing once-weekly dosing. It is an approved prescription drug, and this page is educational only.

Source & context

Biological / chemical source: Recombinant GLP-1 analog fused to a human IgG4 Fc fragment

Primary research or clinical context: Prescription medicine approved in Canada, the US and EU

Fusion-protein design

Rather than acylation, dulaglutide links a DPP-4-resistant GLP-1 analog to an antibody Fc region. The Fc scaffold raises molecular size and recycles through the neonatal Fc receptor, extending circulation to roughly a week. It is not a single small peptide, so no compact residue count describes the whole molecule.

Approval and status

Marketed as Trulicity, dulaglutide is an approved prescription medicine in Canada, the US and EU. As a regulated therapeutic it is used only under a prescriber's direction. This summary covers the molecular engineering behind the peptide for educational purposes and makes no therapeutic claims.

FAQ about Dulaglutide

What is Dulaglutide?+

Dulaglutide is a GLP-1 receptor agonist in which two modified GLP-1 peptide chains are fused to a human immunoglobulin (IgG4) Fc fragment. The large fusion greatly extends half-life, allowing once-weekly dosing. It is an approved prescription drug, and this page is educational only.

Is Dulaglutide an approved medicine?+

Dulaglutide: Prescription medicine approved in Canada, the US and EU. Always follow licensed medical guidance for approved products.

What is the typical length of Dulaglutide?+

Dulaglutide is not a classic amino-acid chain peptide in the same sense; see the profile for classification details.

Related peptides

References & further reading

  1. 1.Wikipedia — Dulaglutide
  2. 2.DrugBank — Dulaglutide (DB09045)
Disclaimer: Educational content only. Not medical advice. Not instructions for human use. Research peptides and unapproved products may be restricted or illegal to market for human consumption in your jurisdiction. Consult qualified professionals and applicable law.
You might also like: All peptides · Atlas · Research · Tools
Cite this: Peptides Codex — Dulaglutide educational profile.
Tip: Use browser print (Ctrl/Cmd + P) for a clean PDF of this page.