Mazdutide

Mazdutide (IBI362 / Emaglutide)

In simple words

Mazdutide is a Chinese drug that, like survodutide, acts as both a satiety hormone and glucagon. In a Chinese study, people lost up to 17.6% of their weight in a year.

What this molecule is

29 amino acids, a dual GLP-1/glucagon agonist based on oxyntomodulin with an optimized fatty acid. Structurally similar to survodutide.

Why it is studied

Chinese Phase III GLORY-1 (JAMA, n=610): −14.4% (6 mg) and −17.6% (9 mg) over 48 weeks. The first dual incretin agonist to complete Phase III. A registration application has been filed in China.

How it works

GLP-1R + glucagon R — similar to survodutide: ↓appetite + ↑β-oxidation of liver fat + ↑thermogenesis.

Doses used in studies

Studies used titration 3 → 4.5 → 6 → 9 mg/week SC. Optimum: 6–9 mg. Course: 48 weeks.

Combined with in studies

  • Metformin

Level of evidence

Level A Human clinical trials. There are randomized controlled trials (RCTs), or the compound has been approved by a regulatory agency. The most reliable level. Phase III (JAMA). Registration in China expected in 2026.

Important to know

Honest caveat: Not approved outside China. All data are from the Chinese population. There are no comparative RCTs with semaglutide. In studies it was not combined with other GLP-1 agonists.

Studies in PubMed

  1. A new class of glucose-lowering therapy for type 2 diabetes: the latest development in the incretin arena. (Lancet, 2023)
  2. Once-Weekly Mazdutide in Chinese Adults with Obesity or Overweight. (N Engl J Med, 2025)
  3. A phase 2 randomised controlled trial of mazdutide in Chinese overweight adults or adults with obesity. (Nat Commun, 2023)
  4. Safety and efficacy of a GLP-1 and glucagon receptor dual agonist mazdutide (IBI362) 9 mg and 10 mg in Chinese adults with overweight or obesity: A randomised, placebo-controlled, multiple-ascending-dose phase 1b trial. (EClinicalMedicine, 2022)
  5. Mazdutide: First Approval. (Drugs, 2025)
  6. Mazdutide versus Semaglutide for the treatment of type 2 diabetes and obesity: Rationale, design and baseline data of DREAMS-3 phase 3 trial. (Contemp Clin Trials, 2026)

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