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For research and educational purposes only. Not intended for human consumption.

Cagrilintide

Well Researched
Updated Dec 2025

Long-Acting Amylin Receptor Agonist | Weight Loss & Diabetes

Injectable
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2.4mg weekly
Once weekly
Injectable
Subcutaneous: abdomen
Continuous
Typical duration
-20°C
Storage

Overview

What is Cagrilintide?

Cagrilintide (AM833) is a novel long-acting lipidated amylin analog that acts as a dual amylin and calcitonin receptor agonist. Developed for weight management and type 2 diabetes treatment, it shows superior weight loss potential when combined with glp1-s (CagriSema), with Phase 3 trials demonstrating up to 22.7% weight reduction.

Key Benefits

FDA development candidate, extensive Phase 3 data, superior weight loss in combination with glp1-s, once-weekly convenience.

Mechanism of Action

Subcutaneous injection provides optimal bioavailability of lipidated amylin analog, targeting dual amylin and calcitonin receptors for satiety and metabolic effects.

Molecular Information

4,409.01 Da
Weight
37
amino acids
Amylin receptor agonist
Type
Amino Acid Sequence:
Lys-Cys-Asn-Thr-Ala-Thr-Cys-Ala-Thr-Gln-Arg-Leu-Ala-Asn-Phe-Leu-Val-His-Ser-Ser-Asn-Asn-Phe-Gly-Pro-Ile-Leu-Pro-Pro-Thr-Asn-Val-Gly-Ser-Asn-Thr-Tyr-NH₂
* N-terminal lipidation with γ-glutamic acid spacer and C20 fatty diacid for extended half-life

Pharmacokinetics

Peak
2 days
Half-life
7.5 days
Cleared
~37.5 days
100%50%0%0h6h12h18h24h
Peak
Half-life
Cleared
Lau et al. J Med Chem 2021

Research Indications

Superior Obesity Treatment

Phase 3 trials demonstrate 22.7% weight loss with CagriSema combination, outperforming existing therapies.

Type 2 Diabetes Weight Management

15.7% weight loss in diabetic patients with concurrent glycemic improvements.

Sustained Weight Maintenance

Long-acting formulation supports sustained weight loss throughout treatment period.

Research Protocols

Disclaimer: Cagrilintide is in Phase 3 trials and not yet FDA approved. FDA approval expected Q1 2026. These protocols are based on clinical trial data.

GoalDoseFrequencyRoute
Weight Loss (Monotherapy)2.4mg weeklyOnce weeklySubcutaneous injection
Weight Loss (CagriSema)2.4mg + glp1-s 2.4mgOnce weeklySubcutaneous injection
Type 2 Diabetes Management2.4mg weeklyOnce weeklySubcutaneous injection with metformin
Dose Escalation Protocol0.25mg → 0.5mg → 1.0mg → 1.7mg → 2.4mgWeekly increases over 16 weeksSubcutaneous injection

Timing: Administer same day each week. Evening injection may reduce morning nausea. Can be given with or without food.

Peptide Interactions

How to Reconstitute

Important: Always use bacteriostatic water (BAC). Sterile technique is essential.

1

pH CRITICAL: Cagrilintide requires acidic pH (3.5-4.5) to prevent fibril formation

2

Reconstitute slowly down side of vial, swirl gently (don't shake)

3

Verify solution is clear - any cloudiness indicates fibril formation, discard immediately

4

Store refrigerated (2-8°C), inspect for clarity before each injection

5

Allow to reach room temperature 15-30 minutes before injection

6

Inject subcutaneously in abdomen, thigh, or upper arm, rotating sites weekly

Dosing Calculator

Calculate your injection volume with visual dosing guide

FINAL CONCENTRATION
2.50mg/mL
Each milliliter contains 2.50 mg of peptide
VISUAL REFERENCE (RESEARCH USE ONLY)

To obtain 250 mcg from this solution:

Draw 0.10 mL=10 units

(1 mL = 100 units on any insulin syringe)

0102030405060708090100
00.10.20.30.40.50.60.70.80.91.0
0.10 mL
10 units

Draw to this mark for 250 mcg

This calculator is for research purposes only. Always verify calculations and consult protocols.

Quality Indicators

Pre-filled pen design

When approved, will likely be available as convenient pre-filled pen.

Pharmaceutical grade purity

Clinical trial material demonstrates >98% purity.

Frozen storage stability

Proper frozen storage at -20°C maintains stability.

Not yet commercially available

Currently only available in clinical trials - FDA approval expected Q1 2026.

Fibril formation at improper pH

Amylin analogs form fibrils at neutral/alkaline pH - solution must remain clear.

Temperature excursions

Repeated freeze-thaw cycles denature the peptide.

What to Expect

  • Week 1-2: Gastrointestinal adaptation period, mild nausea possible during dose escalation
  • Week 4-8: Early weight loss becomes apparent (2-5%), appetite reduction noticeable
  • Week 12-26: Significant weight loss acceleration (10-15%), improved satiety signals
  • Week 26+: Peak efficacy achieved (15-23% weight loss), sustained weight loss maintenance

Side Effects & Safety

Side Effects

  • Most common side effects are gastrointestinal (nausea, vomiting, diarrhea)
  • Anti-cagrilintide antibodies develop in 46-73% of patients but do not affect efficacy
  • No clinically significant QT prolongation observed
  • Only 57.3% of patients achieved maximum 2.4mg dose in REDEFINE 1 trial
  • Formulation must be maintained at acidic pH (3.5-4.5)

When to Stop

  • Severe GI symptoms
  • Signs of allergic reaction
  • Fibril formation in solution
  • As directed by healthcare provider

References

3 Studies

REDEFINE 1 Trial (2025)

Human | 2.4mg weekly | 68 weeks | 22.7% weight loss vs 2.4% placebo

Landmark Phase 3 trial in NEJM demonstrating superior weight loss with CagriSema in 3,417 adults.

REDEFINE 2 Trial (2025)

Human | 2.4mg weekly | 68 weeks | 15.7% weight loss, 73.5% achieved HbA1c ≤6.5%

Phase 3 trial in 1,206 adults with type 2 diabetes showing significant weight loss and glycemic improvements.

Thorough QT Study (2024)

Human | 4.5mg single dose | 5 days | No clinically relevant QTc prolongation

Dedicated cardiac safety study confirming no significant QT interval prolongation.

Quick Start Guide

Typical Dose
2.4mg weekly (after 16-week dose escalation)
How Often
Once weekly, same day each week
Where to Inject
Subcutaneous: abdomen
Timing
Same day weekly, preferably evening, with or without food
Effects Timeline
Initial: 1-2 weeks; Significant weight loss: 4-12 weeks; Peak: 26+ weeks
Storage
Store frozen at -20°C, protect from light
Cycle Length
Continuous treatment recommended
Break Between
Not applicable - continuous therapy for optimal efficacy

Research Disclaimer

Cagrilintide is sold for laboratory research purposes only and is not intended for human or animal consumption. The information provided on this page is compiled from published research, veterinary studies, and anecdotal reports for educational purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations. Any research involving Cagrilintide must comply with all applicable local, state, and federal regulations. BioInfinity Lab makes no claims regarding the safety or efficacy of Cagrilintide for any purpose. Consult qualified professionals for any research applications.