Retatrutide vs Survodutide
Comprehensive side-by-side comparison of mechanisms, dosing, side effects, and research
Also: LY3437943, Triple G
A triple agonist targeting GLP-1, GIP, and glucagon receptors. Phase 3 trials show up to 28.7% weight loss (71 lbs average), the highest of any obesity drug. Expected FDA approval late 2026 to early 2027.
Also: BI 456906
A dual GLP-1/glucagon receptor agonist in development for obesity and MASH. Has FDA Breakthrough Therapy Designation for MASH with fibrosis.
Key Comparison Insights
- Both peptides belong to the Weight Loss category, suggesting similar primary applications.
Detailed Comparison
| Attribute | Retatrutide | Survodutide |
|---|---|---|
| Category | Weight Loss | Weight Loss |
| FDA Status | Not FDA Approved | Not FDA Approved |
| Clinical Status | Pre I II III IV FDA | Pre I II III IV FDA |
| Mechanism of Action | Retatrutide activates three receptors: GLP-1 for appetite suppression and glucose control, GIP for enhanced insulin response and metabolic effects, and glucagon for increased energy expenditure and fat oxidation. The triple mechanism provides synergistic effects. | Survodutide activates both GLP-1 receptors (appetite suppression, glucose control) and glucagon receptors (increased energy expenditure, reduced liver fat). The glucagon component adds metabolic benefits beyond pure GLP-1 agonists. |
| Common Dosing | 4-12 mg weekly Once weekly, same day each week | Limited community data available See research protocols |
| Administration | Subcutaneous injection weekly | Subcutaneous injection weekly |
| Typical Duration | Long-term use expected | Long-term use expected |
| Best Time to Take | Morning, same day each week | Before bed or morning (fasted) |
Possible Side Effects May vary by individual |
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| Research Summary | Phase 3 TRIUMPH-4 trial (Dec 2025) showed 28.7% weight loss at 68 weeks, with average loss of 71 lbs. Also showed significant osteoarthritis pain relief, reduced cardiovascular risk markers, and 14 mmHg blood pressure reduction. Seven more Phase 3 readouts expected in 2026. NDA submission expected late 2025/early 2026. | Phase 2 showed 83% of patients had MASH resolution vs 18% placebo. Phase 3 SYNCHRONIZE trials for obesity expected to complete early 2026. LIVERAGE trials for MASH enrolling 3,000+ participants. |
Frequently Asked Questions: Retatrutide vs Survodutide
What is the difference between Retatrutide and Survodutide?
Retatrutide is a weight loss peptide that a triple agonist targeting glp-1, gip, and glucagon receptors. phase 3 trials show up to 28.7% weight loss (71 lbs average), the highest of any obesity drug. expected fda approval late 2026 to early 2027. Survodutide is a weight loss peptide that a dual glp-1/glucagon receptor agonist in development for obesity and mash. has fda breakthrough therapy designation for mash with fibrosis. The main differences lie in their mechanisms of action and clinical applications.
Which is better, Retatrutide or Survodutide?
Neither is universally "better" - the choice depends on your specific goals. Retatrutide is typically used for weight loss purposes, while Survodutide is used for weight loss. Always consult with a healthcare provider to determine which may be appropriate for your situation.
Can Retatrutide and Survodutide be used together?
Some peptide protocols combine multiple compounds for synergistic effects. However, using Retatrutide and Survodutide together should only be considered under medical supervision, as both compounds have their own side effect profiles and potential interactions. Research on their combined use may be limited.