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ClinicalGLP-1 & IncretinSubQWeeklyPartial data

Mazdutide

ER-MZ · IBI362 · LY3305677

Dual GLP-1 / glucagon receptor agonist showing strong weight loss and metabolic effects in late-stage trials, particularly in Asian populations.

§ 01   Overview

Overview

Dual GLP-1 / glucagon receptor agonist showing strong weight loss and metabolic effects in late-stage trials, particularly in Asian populations.

Approved in China in 2025 for obesity and T2D. Ongoing trials in Western markets.

§ 02   Mechanism

Mechanism of action

Mazdutide activates both GLP-1 and glucagon receptors. The glucagon arm is hypothesized to increase energy expenditure and improve hepatic lipid handling, while GLP-1 drives appetite suppression and glycemic control.

  • 01Substantial weight loss in Phase III (GLORY-1)
  • 02Improvements in hepatic fat and liver enzymes
  • 03Glycemic improvements in T2D

§ 03   Dosing

Dosing protocol

Standard Protocol

Vial
10 mg
BAC Water
1 ml BAC water
Dose Range
3 – 9 mg weekly
Starting Dose
3 mg weekly
Route
SubQ
Frequency
Weekly
Cycle
Titrate every 4 weeks.

§ 04   Evidence

Evidence & research

Clinical

Approved in China in 2025 for obesity and T2D. Ongoing trials in Western markets.

FDA Status

Not FDA-approved. Approved in China (2025).

§ 06   News

In the news

8 articles from the last 12 months · updates hourly

§ 07   Sourcing

Sourcing & supply

Regulatory status

Investigational, no compounding path

Currently in active clinical trials. No compounding pathway. No brand product. The only US channels are RUO vendors that the FDA has targeted with warning letters. Assume any sourcing carries significant regulatory and quality risk.

Research-use-only · 2

Research-use-only

Swiss Chems

Established SARMs/peptide vendor. FDA warning letter Dec 2024 for GLP-1s. Weaker peptide QC than SARMs QC.

Third-Party Testing1 flag on record
Visit
Research-use-only

Summit Research

FDA warning letter December 2024 across multiple GLP-1s.

1 flag on record

Listings are informational, not endorsement. Verify credentials and flags against FDA and PCAB databases before purchasing. Full directory & how to verify →

§ 09   Safety

Safety & side effects

Side effects

  • 01Nausea
  • 02GI effects typical of incretin class

Contraindications

None specified.

This site is for educational and research purposes only. It does not constitute medical advice. Always consult a qualified healthcare provider before using any peptide or supplement.