Dulaglutide vs Orforglipron
Side-by-side comparison of key properties, dosing, and research.
GLP-1 / Weight Loss Agonists
DulaglutideGLP-1 / Weight Loss Agonists
Orforglipron- Summary
- Dulaglutide (brand name Trulicity) is a once-weekly GLP-1 receptor agonist approved by the FDA for type 2 diabetes management and cardiovascular risk reduction. It consists of two GLP-1 analog chains fused to a modified IgG4 Fc fragment, extending its half-life to approximately 5 days. While primarily a diabetes medication, it produces meaningful weight loss and has established cardiovascular outcomes data from the REWIND trial.
- Orforglipron is an oral, once-daily small-molecule GLP-1 receptor agonist developed by Eli Lilly. Unlike injectable GLP-1 peptides, it is a non-peptide compound absorbed orally without food restrictions, representing a major convenience advancement. Phase 2 trials showed up to 9.4% weight loss at 36 weeks, and Phase 3 trials (ATTAIN program) are ongoing for obesity and type 2 diabetes.
- Half-Life
- ~5 days
- ~12 hours (once-daily oral dosing)
- Admin Route
- SubQ
- Oral
- Research
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- Typical Dose
- 0.75 mg → 1.5 mg
- 12 mg → 24 mg → 36 mg → 45 mg
- Frequency
- Once weekly
- Once daily
- Key Benefits
- FDA-approved for type 2 diabetes
- Once-weekly subcutaneous dosing via auto-injector pen
- Reduces HbA1c by approximately 1.1–1.6%
- Modest weight loss of 1.5–3 kg at approved doses
- Demonstrated cardiovascular risk reduction (REWIND trial)
- Established long-term safety profile
- Renal protective effects in CKD
- Oral pill — no injections required
- Once-daily dosing without food restrictions (unlike oral semaglutide)
- Up to 9.4% body weight reduction in Phase 2 at 36 weeks
- Significant HbA1c reduction in type 2 diabetes trials
- Small-molecule stability — no cold chain requirements
- Broadens access for injection-averse patients
- Potential class-defining convenience advantage over injectable GLP-1s
- Side Effects
- Nausea (most common, typically transient)
- Diarrhea
- Vomiting
- Decreased appetite
- +3 more
- Nausea (most common, dose-dependent)
- Vomiting
- Diarrhea
- Decreased appetite
- +2 more
- Stacks With
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