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All Comparisons

Retatrutide vs Cagrilintide

Research material comparison: purity standards, available formats, molecular data, batch COA documentation, and regulatory status. For in vitro research use only.

Retatrutide: BCagrilintide: B
AttributeRetatrutideCagrilintide
CategoryMetabolic / Triple AgonistMetabolic / Amylin Analog
Evidence RatingBPhase III / NDA FiledBPhase III / NDA Filed
Clinical StatusPhase 3 clinical trials (Eli Lilly TRIUMPH program)Phase 3 (REDEFINE program). NDA filed with FDA in 2026 for CagriSema.
MechanismRetatrutide simultaneously activates three receptors: GLP-1 (reduces appetite, slows gastric emptying, improves insulin secretion), GIP (enhances insulin sensitivity, glucose control), and glucagon (increases energy expenditure, fat oxidation, thermogenesis). This triple synergy combines reduced cal...Cagrilintide activates amylin receptors (calcitonin receptor + RAMP complexes) in the area postrema and other hindbrain regions, promoting meal-related satiety through distinct pathways from GLP-1 agonism. It slows gastric emptying, suppresses inappropriate glucagon release, and activates central ap...
Half-Life~6 days (allows once-weekly dosing)~7 days (allows once-weekly dosing)
BioavailabilitySC injectionSC injection
Molecular Weight
WADA StatusNot ProhibitedNot Listed
Research Half-Life~6 days (allows once-weekly dosing)~7 days (allows once-weekly dosing)
Key Use Cases
  • Weight Management
  • Metabolic Health
  • Weight Management
  • Metabolic Health
Safety Concerns
  • GI side effects (dose-related, 13-63% across dose groups): nausea, vomiting, diarrhea, constipation; mostly mild to moderate
  • GI events partially mitigated with lower starting dose (2 mg vs 4 mg initial dose)
  • Dose-dependent heart rate increases peaking at 24 weeks, declining thereafter
  • GI adverse events: 79.6% in CagriSema group vs 39.9% placebo (nausea, vomiting, diarrhea, constipation)
  • GI events mainly transient and mild-to-moderate
  • Similar safety profile to GLP-1 class: pancreatitis risk, gallbladder events, thyroid C-cell tumors in rodents
Contraindications
  • Not yet established -- product is investigational
  • Likely similar to GLP-1 class: personal/family history of medullary thyroid carcinoma, MEN2 (precautionary)
  • Pregnancy (based on GLP-1 class)
  • Monitoring recommended for muscle mass, bone density, GI motility per GLP-1 class concerns
  • Not yet established (investigational)
  • Likely similar to GLP-1 class: personal/family history of MTC, MEN2
  • Pregnancy
  • History of pancreatitis
Regulatory (US)Not FDA-approved. Phase 3 TRIUMPH program ongoing (Eli Lilly). TRIUMPH-4 reported 28.7% body weight loss at 12 mg over 68 weeks. Seven Phase 3 readouts expected in 2026. Regulatory submission expected 2026; approval anticipated 2027-2028.Not yet FDA-approved. NDA filed by Novo Nordisk in 2026 for CagriSema (cagrilintide + semaglutide) for chronic weight management. FDA review expected 2026-2027.

Research Material Specifications

Catalog specifications for the corresponding research materials, including batch documentation coverage.

SpecificationRetatrutideCagrilintide
Purity Standard≥98%≥98%
CAS Number2381089-83-2N/A
Molecular FormulaC₂₂₅H₃₄₈N₆₀O₆₈S₂N/A
Available Formats20mg, 10mg, 5mg, 30mg10mg
Batch COAs Published
Stock StatusIn stockOut of stock

Research Disclaimer: This comparison is provided for educational purposes only. All products are sold exclusively for in vitro research use. The information presented is based on published preclinical and clinical research and does not constitute medical advice. Consult a qualified healthcare professional before making any decisions regarding peptide use.

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