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MB310
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MB310

Microbiotica's ulcerative colitis treatment candidate.

MB310 is Microbiotica’s investigational oral treatment for ulcerative colitis. Its capsule combines eight selected gut bacterial strains intended to support the intestinal barrier and influence inflammation.

Last refreshed: 22 October 2026 · Appears in 1 active topic

Timeline for MB310

#16 16 Oct

Funded into Phase 2

UK Startups and Innovation: British Business Bank leads Microbiotica's £36m Series C
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Background

MB310 is a live biotherapeutic product being developed by Microbiotica for ulcerative colitis. It contains a defined combination of eight live bacterial strains normally associated with the gut. Microbiotica formulated MB310 as an oral capsule for daily administration. Its design focuses on the intestinal epithelial barrier and the immune processes involved in the disease. [Developer description](https://Microbiotica.com/Microbiotica-raises-36-million-48-million-in-series-c-financing-to-advance-pipeline-into-phase-2-clinical-development/)

The strains were selected through analysis of clinical and microbiome data from a faecal microbiota transplant study. Microbiotica identified bacteria associated with clinical response and used them to develop a defined product. Laboratory studies have examined several ways its strains may support barrier Integrity. Those proposed mechanisms explain the treatment approach; they do not establish how well the investigational medicine will work in patients. [Research background](https://Microbiotica.com/Microbiotica-unveils-multiple-mechanisms-by-which-MB310-in-clinical-development-for-the-treatment-of-ulcerative-colitis-protects-the-intestinal-barrier/)

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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 22 October 2026. Editorial standards.