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EnteroBiotix Limited (‘EnteroBiotix’), a biopharmaceutical company developing best-in-class microbiome therapies for gut health, today announces the completion of a £19m ($25m) financing to advance its lead candidate, EBX-102-02, a next-generation orally delivered full-spectrum investigational microbiome therapeutic, into Phase 2b development for Irritable Bowel Syndrome with Constipation (IBS-C).
The financing was led by experienced life science investor Thairm Bio and the Scottish National Investment Bank, with participation from new and existing investors. The investment underscores growing confidence in EBX-102-02 as a first-in-class, potentially disease-modifying therapy for IBS-C, a condition with significant unmet medical need.
Dr James McIlroy, CEO, EnteroBiotix, commented: “Following the positive outcome of our Phase 2a TrIuMPH trial, which demonstrated clear efficacy signals of EBX-102-02 over placebo across key endpoints in patients with irritable bowel syndrome with constipation or diarrhoea, we are now commencing the largest ever full-spectrum microbiome therapeutic trial in IBS. The Phase 2b trial named ‘Restoring Intestinal Symbiosis for Efficacy in IBS’ RISE trial is designed to confirm the earlier signal observed and position EBX-102-02 as a potential first disease-modifying therapy for IBS-C, a highly debilitating condition that is estimated to affect over 10 million people in the USA and Europe, and where unmet need has persisted for decades.”
The Phase 2b trial is a randomised, double-blind, placebo-controlled interventional trial enrolling approximately 300 patients with moderate-to-severe IBS-C across sites in the UK. The trial ranks among the largest trials of a full-spectrum microbiome therapeutic ever to be conducted, a testament to both the ambition of the programme and the growing body of evidence supporting the gut microbiome as a tractable target in IBS. First patient dosing is expected in Q2 2026 with topline efficacy data expected in H2 2027.
The RISE trial is the cornerstone of the Company’s broader strategy to build a differentiated pipeline in high-value gastrointestinal indications associated with significant unmet medical need. It follows the positive results from the Phase 2a TrIuMPH trial in 122 patients with IBS with constipation or diarrhoea announced in January 2026.
Further details of the RISE trial can be found on the ISRCTN, the UK’s clinical study registry, here.
