Evidence memo / Metabolic & weight

Survodutide

Also: BI 456906 · glucagon/GLP-1 receptor agonist

Survodutide is an investigational dual glucagon and GLP-1 receptor agonist being developed for obesity and for metabolic liver disease (MASH). It is not approved. Phase 2 trials have reported weight and liver-fat effects, with a larger program underway. The Watchlist boundary is keeping it to its investigational obesity and liver program and not generalizing early results.

Controlled human dataPhase 2 / Phase 3InvestigationalSafety / regulatory watch

The verdict

Our read at a glance.

Whether survodutide's dual glucagon and GLP-1 approach delivers durable obesity and liver-disease benefits in larger trials and leads to approval.

The signal
Phase 2 trials have reported weight loss in obesity and improvement in metabolic liver disease (MASH) markers, with later-stage studies in progress. As an investigational drug, its full efficacy and safety remain to be established.
The unknown
Whether its weight and liver benefits hold up against tolerability in larger trials, and how it compares with GLP-1 and triple-agonist drugs.
Our read
An investigational dual agonist for obesity and liver disease, not yet proven or approved. Survodutide's Phase 2 data are early, and until late-stage results and any approval it should be read as investigational.

The mechanism

How it works.

Survodutide is an injectable peptide that activates two receptors at once: the GLP-1 receptor and the glucagon receptor. Through GLP-1 it signals the brain to reduce appetite and helps the pancreas control blood sugar, and through glucagon it raises energy expenditure and pushes the liver to burn stored fat. Activating both is the rationale for testing it in obesity and in fatty liver disease (MASH), but it is investigational, so these effects are still being measured in trials rather than established.

Safety & regulatory boundary

The consequential part.

Survodutide is investigational and not an approved product. Its safety profile, including gastrointestinal effects and the heart-rate and other effects seen with glucagon-containing agonists, is still being characterized. Research-labeled or compounded survodutide is not an approved product, and its development status does not support use outside trials.

What's next

What we're watching.

Phase 3 obesity and MASH results, regulatory filings, and comparisons with other incretin and dual or triple agonists.

Context

Why this is discussed.

Survodutide is one of the dual-agonist obesity drugs in development, of particular interest because adding glucagon activity may help with liver fat as well as weight.

The evidence base

20 cited references.

Registered trials8

Indexed literature (PubMed)12

Emerging pharmacotherapies for obesity: A systematic review

Kokkorakis M et al. · Pharmacol Rev · 2025

Weight management treatment in obesity

Rubio-Herrera MA et al. · Med Clin (Barc) · 2025

Keep reading

Related published memos.