Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Head-to-head comparison of Cagrilintide and Tirzepatide — mechanism, side effects, legal status, and pricing.
Cagrilintide is a long-acting acylated amylin analog developed by Novo Nordisk. It is investigational and not FDA-approved; Novo Nordisk's lead development path is the CagriSema co-formulation with semaglutide for weight management. Monotherapy cagrilintide was evaluated in Phase 2 but was deprioritized in favor of the combination.
Tirzepatide is a unimolecular dual GIP and GLP-1 receptor agonist FDA-approved as Mounjaro for type 2 diabetes (2022), Zepbound for chronic weight management in adults with obesity or overweight with a weight-related comorbidity (2023), and Zepbound for moderate-to-severe obstructive sleep apnea in adults with obesity (2024). It has a half-life of approximately 5 days, allowing once-weekly subcutaneous dosing.
Cagrilintide
Tirzepatide
Category
Legal Status
Mechanism
Half-life
Side Effects
COA-verified vendors · trust score ≥70 required · single-vial price — bulk/bundle deals may be lower
Cagrilintide
Tirzepatide
COA corpus from Disclosed Labs — independently tested batches only.
Cagrilintide
79
COAs
99.7%
Avg purity
13
Labs
Tirzepatide
306
COAs
99.7%
Avg purity
15
Labs
A Phase 2 dose-finding trial of cagrilintide monotherapy demonstrated dose-dependent weight loss of up to 10.8% over 26 weeks versus 3.0% for placebo (Lau et al., The Lancet, 2021). Novo Nordisk pivoted development to the CagriSema co-formulation with semaglutide 2.4 mg. The Phase 3 REDEFINE 1 trial (n=3,417, 68 weeks) in obesity reported ~22.7% mean body weight reduction on the treatment-policy estimand, with 91.9% achieving ≥5% weight loss versus 31.5% for placebo. Novo Nordisk submitted a CagriSema NDA to the FDA in December 2025; the application is under review in 2026. Cagrilintide is not FDA-approved as a standalone therapy, and CagriSema is not yet approved as of April 2026.
Key references
The SURPASS program established efficacy in type 2 diabetes, including SURPASS-2 (Frias et al., NEJM 2021), in which tirzepatide was superior to semaglutide 1 mg for A1C reduction and body weight. The SURMOUNT-1 obesity trial (Jastreboff et al., NEJM 2022) demonstrated up to approximately 20.9% mean body-weight reduction at 15 mg over 72 weeks. SURMOUNT-OSA (Malhotra et al., NEJM 2024) showed large reductions in apnea-hypopnea index in obstructive sleep apnea with obesity, supporting the 2024 FDA indication (Zepbound for moderate-to-severe OSA in adults with obesity). The SUMMIT trial (Packer et al., NEJM 2025) demonstrated a lower risk of cardiovascular death or worsening heart failure in HFpEF with obesity.
Cagrilintide and Tirzepatide are both in the Metabolic category and may have overlapping mechanisms. Researchers should review both profiles carefully, understand the mechanisms of action, and monitor the relevant biomarkers when combining compounds in the same class. As always, consult a licensed healthcare provider before making any decisions about combining research compounds.
This platform provides informational tools only, not medical advice. This comparison is for educational purposes only. Consult a licensed provider.
Contraindications
Lab Testing
Disclosed Labs