Overview
Mazdutide is a dual GLP-1 and glucagon receptor agonist modelled on oxyntomodulin, a naturally occurring gut hormone with activity at both receptors. Originally discovered by Eli Lilly, it has been developed in China by Innovent Biologics, with a fatty-acid modification that extends its half-life for once-weekly use in clinical trials.
Phase 3 trials in Chinese adults — GLORY in obesity and DREAMS in type 2 diabetes — reported clinically meaningful reductions in body weight and glucose measures, along with reductions in liver fat. Based on these data, Chinese regulators approved mazdutide in 2025. It has not been approved by the FDA, EMA or ANVISA. Research interest focuses on how adding glucagon-receptor activity alters energy expenditure and hepatic metabolism compared with GLP-1 agonism alone. Our product is the research-grade reference compound for laboratory study.
Mechanism studied
- Mazdutide
- GLP-1R + GCGR
- Satiety & energy expenditure
- Weight & glucose endpoints
Mazdutide activates the GLP-1 receptor, enhancing glucose-dependent insulin secretion, slowing gastric emptying and reducing appetite via central pathways. Concurrent glucagon-receptor activation in the liver increases fatty-acid oxidation and may raise energy expenditure, contributing to reductions in liver fat and body weight. The GLP-1 component counterbalances the hyperglycaemic tendency of glucagon signalling. This design mirrors the dual pharmacology of endogenous oxyntomodulin while providing the stability needed for sustained receptor exposure in long-term studies.
Research highlights
- 01Oxyntomodulin-inspired dual GLP-1/glucagon receptor agonist
- 02GLORY and DREAMS phase 3 trials conducted in Chinese adults
- 03Approved in China in 2025; not approved by FDA, EMA or ANVISA
- 04Reductions in liver fat reported alongside weight and glucose effects
- 05Representative of the GLP-1/glucagon co-agonist class
Latest published research
58 papers on PubMed →The pharmacotherapy for pediatric obesity: insights and challenges from adult weight-loss medications
Chen Z et al. · Journal of diabetes and metabolic disorders · 2026 Dec · PMID 42871568
Efficacy and safety of mazdutide in adults with obesity or overweight: a US-based, multicentre, phase 2, randomised, placebo-controlled clinical trial
Hsia SH et al. · The lancet. Diabetes & endocrinology · 2026 Nov · PMID 42628555
Effectiveness of the Dual GLP-1R/GCGR Agonist Mazdutide in GSD IXc: A Case Report
Chen Y et al. · Journal of clinical medicine · 2026 Oct 20 · PMID 42941641
The GLP-1R/GCGR Dual Agonist Mazdutide Attenuates Liver Steatosis and Decreases Circulating Cholesterol Levels in Mice With Metabolic Dysfunction-Associated Steatotic Liver Disease
Yu L et al. · Diabetes, obesity & metabolism · 2026 Oct 14 · PMID 42875732
The Power of Two: Harnessing Dual Glucagon and Incretin Signaling for Treatment of Obesity and Metabolic Dysfunction-Associated Steatohepatitis-A Narrative Review with a Translational Focus
Ard JD et al. · Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026 Oct 11 · PMID 42860310
Development and validation of a multiplexed LC-HRMS method for nine GLP-1 receptor agonists and its pharmaceutical application
Tong LH et al. · Journal of chromatography. A · 2026 Oct 11 · PMID 42603384
Efficacy and Safety of the Dual Glucagon-Like Peptide-1 and Glucagon Receptor Agonist Mazdutide in Predominantly Chinese Adults With Obesity and/or Type 2 Diabetes: A Systematic Review and Meta-Analysis
Kamrul-Hasan ABM et al. · Diabetes, obesity & metabolism · 2026 Oct · PMID 42410325
Efficacy and Safety of Dual GLP-1/Glucagon Receptor Agonism in Overweight and Obesity: A Class-Specific Systematic Review and Meta-Analysis
Amjad MM et al. · Diabetes, obesity & metabolism · 2026 Sep 29 · PMID 42811393
Live feed from PubMed (NCBI) for “Mazdutide”, updated 2026-10-30. Listing a paper is not an endorsement of its findings.
Registered studies
44 on ClinicalTrials.gov →- Not yet recruiting
Mazdutide for Reducing Atrial Fibrillation Recurrence After Catheter Ablation in Obese Patients
NCT07897305 · Beijing Anzhen Hospital · 2026-10-25
- Recruiting
ASCEND-1: Lifestyle Intervention Plus Mazdutide for Weight Management
NCT07517042 · Shanghai Zhongshan Hospital · 2026-06-10
- Active not recruitingPhase 2
A Study of IBI362 in Participants With Metabolic Dysfunction-Associated Steatohepatitis (MASH)
NCT06937749 · Innovent Biologics (Suzhou) Co. Ltd. · 2025-06-20
- RecruitingPhase 4
Effect of Mazdutide on Coronary Plaque in Patients With Coronary Atherosclerosis and Overweight or Obesity
NCT07657676 · China National Center for Cardiovascular Diseases · 2026-09-14
- RecruitingPhase 2
A Master Protocol Study (LY900038) of Multiple Intervention-Specific-Appendices (ISAs) in Adult Participants With Obesity or Overweight
NCT06143956 · Eli Lilly and Company · 2023-11-17
- Not yet recruitingPhase 2
A Study of HRS-4729 Injection in Participants With Type 2 Diabetes
NCT07843862 · Fujian Shengdi Pharmaceutical Co., Ltd. · 2026-10
- RecruitingPhase 4
Pre-hepatectomy Rehabilitation in Obese MASLD-Complicated Living Liver Donors With Mazdutide (PRIME)
NCT07718126 · West China Hospital · 2026-09-01
- Active not recruitingPhase 2
A Study of IBI362 in Subjects With HFpEF or HFmrEF Combined With Obesity
NCT06862908 · Innovent Biologics (Suzhou) Co. Ltd. · 2025-03-26
From the public ClinicalTrials.gov registry for “Mazdutide”, updated 2026-10-30. Shown for research context only; Purity Peptides products are not for human use.
Key references
- [1]Phase 3 trials published (GLORY / DREAMS)
- [2]PubMed — reviews on mazdutide and obesity
FAQ
Mazdutide received regulatory approval in China in 2025 following the GLORY and DREAMS phase 3 programmes. It remains investigational in the United States, Europe and Brazil. Our product is a research-grade reference peptide for laboratory studies only.
Lyophilized Mazdutide is normally kept sealed at −20 °C, protected from light and moisture. Once reconstituted for laboratory work, aliquots are held at 2–8 °C for short-term use or frozen, avoiding repeated freeze–thaw. Follow the lot-specific guidance on the certificate of analysis.
Every lot of Mazdutide ships with a certificate of analysis reporting HPLC purity, mass-spectrometry identity against the expected molecular weight, appearance and lot number. Match the COA lot to the vial label and keep it with your experimental records.
FOR RESEARCH USE ONLY.Not for human or veterinary use. Not intended to diagnose, treat, cure, or prevent any disease.



