rct
    2026
    High Quality

    Effect of pasteurized Akkermansia muciniphila MucT on insulin sensitivity, body composition, and GLP-1 production in subjects with metabolic syndrome: impact of low baseline gut Akkermansia levels

    Suenaert P, Segers A, Rymenans L, Devroye H, Moll JM, Cani PD, de Vos WM

    Published in Gut Microbes

    Methodology

    Four-month double-blind, placebo-controlled multicenter trial (Ireland and Germany) of 30 billion cells/day pasteurized A. muciniphila MucT capsules in adults with metabolic syndrome (NCT05114018), with deep metagenomic microbiota analysis.

    Key Findings

    The primary endpoint of whole-body insulin sensitivity (Matsuda index) did not differ from placebo in the intention-to-treat population. Exploratory analyses showed improved HOMA-based hepatic insulin sensitivity in prediabetic and older subgroups and greater post-OGTT GLP-1 excursion; participants with low baseline Akkermansia gene counts improved insulin sensitivity, GLP-1 excursion and trunk fat.

    Conclusions

    Pasteurized A. muciniphila MucT may improve metabolic markers mainly in people with low baseline intestinal Akkermansia; the overall trial did not meet its primary endpoint.

    Limitations

    Primary endpoint null; subgroup benefits are exploratory. The trial was run by The Akkermansia Company, the product manufacturer.

    Supplements Studied

    Akkermansia
    Probiotic

    The primary endpoint of whole-body insulin sensitivity (Matsuda index) did not differ after 4-months of daily administration of capsules containing 30 billion cells of pasteurized A. muciniphila MucT compared to placebo in the intention-to-treat subjects.

    Outcomes Measured

    Pasteurized Akkermansia muciniphila MucT was found to improve barrier function in preclinical models and a proof-of-concept study in obese and prediabetic adults.

    Study Details

    Year:2026
    Sample Size:142
    Duration:17 weeks
    Quality Score:8/10

    Disclosures

    Funding

    Industry (The Akkermansia Company) with academic collaborators

    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.