EsoCap announces publication of comprehensive Phase II results demonstrating ESO-101’s effectiveness in eosinophilic esophagitis

  • Detailed results of the ACESO Phase II study published in the peer-reviewed medical journal Alimentary Pharma-cology & Therapeutics
  • ESO-101 leverages EsoCap’s unique drug delivery technology to achieve localized treatment of the esophageal lining with the anti-inflammatory corticosteroid mometasone furoate

EsoCap AG, the Swiss biotech company dedicated to improving the lives of patients with serious diseases of the upper gastrointestinal tract, announced today that the complete results of the ACESO Phase II study evaluating ESO-101 for the treatment of eosinophilic esophagitis have been published in Alimentary Pharmacology & Therapeutics[i]. The data demonstrate that ESO-101 was safe and well tolerated and improved both histologic and endoscopic outcomes in adults with active eosinophilic esophagitis (EoE). EoE is a chronic, local, immune-mediated esophageal disease characterized clinically by symptoms associated with esophageal dysfunction, including dysphagia (i.e., swallowing difficulties), food impaction, heartburn and vomiting, and histologically by eosinophil-dominated inflammation.

The ACESO study was a randomized, placebo-controlled, double-blind Phase II study to evaluate the safety, tolerability, and efficacy of ESO-101 in adult patients with active EoE. ESO-101, EsoCap’s lead product candidate, consists of a capsule with a rolled-up, thin mucoadhesive film with the anti-inflammatory corticosteroid mometasone furoate. The study was conducted at 14 medical centers in five European countries and enrolled 43 participants with EoE and a peak eosinophil count of ≥15 eosinophils per high-power field (hpf). Patients were randomized in a 2:1 ratio and treated with ESO-101 or placebo once daily for 28 days.

[i] Lucendo AJ, el al. Clinical trial: Safety and efficacy of a novel oesophageal delivery system for topical corticosteroids versus placebo in the treatment of eosinophilic oesophagitis. Aliment Pharmacol Ther 2025; https://doi.org/10.1111/apt.18443

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