Encyclopedia · Metabolic & Weight Loss

Cagrilintide

Evidence review

Evidence grade B

Controlled human trials exist, but the compound remains investigational and has no approved consumer product.

Reviewed Aug 10, 2026 5 linked authoritative sources

Cagrilintide is a long-acting amylin analogue being developed for chronic weight management, both alone and with semaglutide as CagriSema. It has a genuine late-stage clinical program, but an investigational ingredient is not interchangeable with an online “research” vial.

What cagrilintide is

Cagrilintide is a long-acting amylin analogue being developed for chronic weight management, both alone and with semaglutide as CagriSema. It has a genuine late-stage clinical program, but an investigational ingredient is not interchangeable with an online “research” vial.

Controlled trials show clinically meaningful weight loss

In a 706-participant phase 2 trial, cagrilintide alone produced greater mean weight reduction than placebo at 26 weeks; gastrointestinal events and injection-site reactions were common.[1] In the 3,417-participant REDEFINE 1 phase 3 trial, cagrilintide 2.4 mg plus semaglutide 2.4 mg produced an estimated 20.4% mean weight reduction at 68 weeks versus 3.0% with placebo.[2] A separate phase 3 trial reported benefit in adults with overweight or obesity and type 2 diabetes.[3]

Combination results cannot be attributed entirely to cagrilintide, and trial products, titration, eligibility criteria, monitoring, and follow-up do not validate independently sold material.

Safety and evidence limits

Gastrointestinal adverse events were frequent in REDEFINE 1, affecting 79.6% of the combination group and 39.9% of the placebo group; nausea, vomiting, diarrhea, constipation, and abdominal pain were generally described as transient and mild to moderate.[2] Long-term cagrilintide-specific safety, pregnancy use, interactions, rare events, and outcomes beyond the trial periods remain less certain than for an established approved medicine.

Current U.S. regulatory status

FDA's March 2026 warning letter treated an online cagrilintide product marketed for human use as an unapproved new drug.[4] An FDA substance-registration entry explicitly states that UNII availability does not imply regulatory review or approval.[5] Teloryx therefore presents cagrilintide as investigational trial context and does not publish a consumer dose, titration schedule, or reconstitution recipe. Current status should be rechecked whenever FDA takes a future application action.

Evidence review

Sources and evidence

Citation numbers in the article link to the exact regulator records, trial registrations, and publications reviewed.

  1. The LancetOnce-weekly cagrilintide for weight management: phase 2 trial (2021)
  2. New England Journal of MedicineCoadministered cagrilintide and semaglutide in adults with overweight or obesity (2025)
  3. New England Journal of MedicineCagrilintide-semaglutide in adults with overweight or obesity and type 2 diabetes (2025)
  4. U.S. FDAPrime Sciences warning letter (2026)
  5. U.S. FDACagrilintide substance registration record (2026)