Product Overview
CagriSema is a once-weekly subcutaneous fixed-dose combination developed by Novo Nordisk, consisting of the long-acting amylin analogue cagrilintide (2.4 mg) and the GLP-1 receptor agonist semaglutide (2.4 mg). The two pathways are complementary: the amylin pathway and the GLP-1 pathway act on different satiety and feeding-regulation processes, jointly reducing hunger and increasing satiety, thereby helping patients reduce caloric intake. If approved, CagriSema would become the first combination injectable therapy of a GLP-1 receptor agonist and an amylin analogue.
Cagrilintide (development code NNC0174-0833): a 37-amino-acid long-acting acylated amylin analogue; the α-amino group of Lys1 is acylated with a C20 fatty diacid (19-carboxynonadecanoyl) via a γ-glutamate linker; a disulfide bond is formed between Cys3 and Cys8 (denoted 3→8 in INN numbering); the C-terminus is a prolinamide. Substitutions relative to human amylin are N14E, V17R, A25P, S28P, S29P, Y37P. It is a non-selective agonist of amylin receptors (AMYR) and the calcitonin receptor (CTR).
Semaglutide: a long-acting analogue built on the GLP-1(7-37) backbone, with a substitution at position 8 (Aib) to resist DPP-4 degradation, an Arg substitution at position 34, and the lysine at position 26 coupled to a C18 fatty diacid side chain via a γGlu-2×AEEA linker; albumin binding extends its half-life, supporting once-weekly dosing.
Technical Specifications
- Standards: CHP/USP/EP
- Specification: 0.99 (purity of each component ≥99.0%, HPLC); dosage form is injection, administered subcutaneously once weekly
- CAS No.: cagrilintide 1415456-99-3; semaglutide 910463-68-2
- Molecular formula:
- Cagrilintide: C₁₉₄H₃₁₂N₅₄O₅₉S₂ (the estimated formula registered in PubChem and FDA GSRS has one fewer oxygen, recorded as C₁₉₄H₃₁₂O₅₈N₅₄S₂)
- Semaglutide: C₁₈₇H₂₉₁N₄₅O₅₉
- Molecular weight:
- Cagrilintide: 4409.01 g/mol (average mass; PubChem records 4409; monoisotopic mass 4406.2515 Da)
- Semaglutide: 4113.58 g/mol (KEGG, Cayman; monoisotopic mass 4111.1154 Da)
- Appearance: white to off-white lyophilized powder (both components share this description)
- Purity (HPLC): ≥ 99.0%
- Melting point: no official melting point has been found in CHP/USP/EP or in public FDA/EMA documentation; both are polypeptides that typically undergo stepwise denaturation and decomposition upon heating rather than melting, so melting point is not used as a quality control parameter
- Sequence / structural features:
- Cagrilintide: KCNTATCATQ RLAEFLRHSS NNFGPILPPT NVGSNTP-NH₂ (disulfide bond Cys3–Cys8, C-terminal prolinamide, Lys1 acylated with C20 diacid-γGlu)
- Semaglutide: H-Aib-EGTFTSDVS SYLEGQAA-K(γGlu-2×AEEA-C18 diacid)-EFIAWLVRGRG (Aib8 substitution, Arg34 substitution, Lys26 acylation)
- Solubility: semaglutide is soluble in DMSO (approx. 3 mg/mL), DMF, methanol, and in water/dilute acetic acid; cagrilintide is an acylated long peptide — select the solvent per the COA and use sonication to aid dissolution
- Storage conditions: store frozen at −20 °C (±5 °C), dry, sealed, and protected from light; avoid repeated freeze-thaw cycles; cold-chain transport with temperature monitoring is recommended
Applications
- Long-term weight management (obesity/overweight): in REDEFINE 1 (68 weeks, 3,417 adults with obesity/overweight and comorbidities, without diabetes), assuming all patients remained on treatment, the CagriSema group achieved a mean weight reduction of 22.7% at week 68 — significantly superior to cagrilintide monotherapy (11.8%), semaglutide monotherapy (16.1%), and placebo (2.3%); 40.4% of patients achieved ≥25% weight loss. REDEFINE 2 likewise demonstrated superiority in 1,206 adults with obesity/overweight and type 2 diabetes. Novo Nordisk submitted a New Drug Application (NDA) to the FDA for the weight management indication in December 2025
- Type 2 diabetes mellitus (T2DM): the REIMAGINE program evaluates the glucose-lowering efficacy of CagriSema; in REIMAGINE 5, CagriSema 1 mg/1 mg was non-inferior to tirzepatide 5 mg in HbA1c reduction (1.71% vs 1.67%), with superior weight loss (12.4% vs 9.1%)
- Latest head-to-head results: in REDEFINE 4 (open-label, 84 weeks, 809 patients), announced February 2026, CagriSema 2.4/2.4 mg achieved 23.0% weight loss (20.2% under the treatment-regimen estimand) versus 25.5% (23.6%) for tirzepatide 15 mg — the primary endpoint of non-inferiority to tirzepatide was not met; the safety and tolerability profile was consistent with the GLP-1 receptor agonist class, with gastrointestinal events as the most common adverse events, mostly mild to moderate and diminishing over time
- Mechanism and combination research: used for in vitro and in vivo pharmacodynamic evaluation of amylin receptor/calcitonin receptor agonism, GLP-1 receptor agonism, and their synergy, as well as research on feeding behavior and energy metabolism
- CMO contract manufacturing: as a dual-peptide combination API, used in formulation development of combination injections/pre-filled injection pens, compatibility and stability studies, analytical method development and validation, and GMP scale-up and CMO/CDMO contract manufacturing
Note: CagriSema is an investigational product that has not yet been approved in the United States or the European Union; an FDA review decision is expected in 2026, and final approval status is subject to the latest official announcements. This product is an active pharmaceutical ingredient (API) intended only for legitimate industrial, research, and pharmaceutical manufacturing use; it is not for end-user clinical use or self-medication guidance.
Product information: please contact us. This information is for reference only.
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