Research

Hormonal

Once-weekly subcutaneous administration of the glucagon/GLP-1 receptor co-agonist NNC9204-1177 produces dose-dependent, clinically significant body weight loss in adults with overweight or obesity, but is associated with unacceptable safety concerns including increased heart rate, hepatic disturbances, and impaired glucose tolerance.

This specific drug (NNC9204-1177) is not available for clinical use because it caused unacceptable side effects like increased heart rate and liver issues, despite causing significant weight loss. However, it highlights that combining GLP-1 and glucagon pathways can lead to substantial weight loss, which is why other approved GLP-1 medications exist. If you are considering GLP-1 therapy, discuss the specific safety profile of the approved options with your healthcare provider.

ModerateQualifiesMEDIUM confidence
Clinically relevant weight loss was achieved (up to 12.6% at week 12; 4,200 ug in the MAD trial), but this was not accompanied by cardiometabolic improvements. ... unacceptable safety concerns precluded further clinical development.
Martin Friedrichsen et al. · medRxiv · 2022

Why this rating

Phase 1 clinical trials (MAD, FHD/SAD, DDI) provide robust safety and PK data but lack long-term efficacy and large-scale comparative efficacy data.

Source

Glucagon/GLP-1 receptor co-agonist NNC9204-1177 reduced body weight in adults with overweight or obesity but was associated with safety issues

Martin Friedrichsen et al. · medRxiv · 2022

DOI 10.1101/2022.06.02.22275920

preprint · n=193Cited 14×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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