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Human evidence record · Maridebart cafraglutide

Phase 1 AMG 133 (maridebart cafraglutide) single- and multiple-ascending-dose study in obesity

The publication reported acceptable safety/tolerability and dose-dependent weight loss; in multiple-ascending-dose cohorts, weight loss was maintained for up to 150 days after the last dose.

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Human evidence record

What this study tells us

Participants were assigned to comparison groups by chance, usually with placebo and/or blinding to reduce bias. This is a strong design for testing cause and effect, but the population, duration and endpoints still limit what can be concluded.

Who was studied?

Adults with obesity; the registry enrolled 110 participants and the publication reports the principal single- and multiple-ascending-dose cohorts

How many?

n=110 enrolled in registry; 75 in published principal SAD/MAD cohorts

What happened?

The publication reported acceptable safety/tolerability and dose-dependent weight loss; in multiple-ascending-dose cohorts, weight loss was maintained for up to 150 days after the last dose.

What stops us overclaiming?

Early Phase 1 study with small cohorts and exploratory weight outcomes; not designed as a definitive efficacy trial.

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Key result

The publication reported acceptable safety/tolerability and dose-dependent weight loss; in multiple-ascending-dose cohorts, weight loss was maintained for up to 150 days after the last dose.

Study details

Study designPhase 1 randomized, double-blind, placebo-controlled single- and multiple-ascending-dose study
PhasePhase 1
PopulationAdults with obesity; the registry enrolled 110 participants and the publication reports the principal single- and multiple-ascending-dose cohorts
Sample size110 enrolled in registry; 75 in published principal SAD/MAD cohorts
RouteSubcutaneous
Regimen / exposureSingle ascending doses and three once-monthly doses in multiple-ascending-dose cohorts
DurationFollow-up up to 150 days after single dose and day 207 in multiple-dose cohorts
ComparatorPlacebo
Primary endpoint / questionSafety and tolerability; pharmacokinetics and pharmacodynamics including exploratory body-weight change
Safety resultThe study was primarily designed to assess safety and tolerability; later-stage trials are required to define the full benefit-risk profile.
Key limitationsEarly Phase 1 study with small cohorts and exploratory weight outcomes; not designed as a definitive efficacy trial.
Registry / identifierPMID 38316982 / NCT04478708