Retatrutide vs CagriSema
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: Semaglutide + Cagrilintide
A combination of semaglutide and cagrilintide (amylin analog). The most effective weight loss drug candidate, showing 22.7% body weight reduction in Phase 3 trials - superior to any single-agent GLP-1.
Key Comparison Insights
- Both peptides belong to the Weight Loss category, suggesting similar primary applications.
Detailed Comparison
| Attribute | Retatrutide | CagriSema |
|---|---|---|
| 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. | Combines GLP-1 receptor agonism (semaglutide) with amylin receptor agonism (cagrilintide). Amylin adds satiety signaling and slows gastric emptying through different pathways than GLP-1. |
| 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 3 REDEFINE 1 trial showed 22.7% weight loss at 68 weeks, significantly outperforming semaglutide alone (15.8%). NDA submitted to FDA in December 2025. If approved, expected to become the leading obesity treatment. |
Frequently Asked Questions: Retatrutide vs CagriSema
What is the difference between Retatrutide and CagriSema?
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. CagriSema is a weight loss peptide that a combination of semaglutide and cagrilintide (amylin analog). the most effective weight loss drug candidate, showing 22.7% body weight reduction in phase 3 trials - superior to any single-agent glp-1. The main differences lie in their mechanisms of action and clinical applications.
Which is better, Retatrutide or CagriSema?
Neither is universally "better" - the choice depends on your specific goals. Retatrutide is typically used for weight loss purposes, while CagriSema is used for weight loss. Always consult with a healthcare provider to determine which may be appropriate for your situation.
Can Retatrutide and CagriSema be used together?
Some peptide protocols combine multiple compounds for synergistic effects. However, using Retatrutide and CagriSema 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.
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Educational Information Only
This comparison of Retatrutide and CagriSema is for educational purposes only. Neither this comparison nor any information on this site constitutes medical advice. Always consult with qualified healthcare providers before making decisions about peptides or other substances.