Core Insights - Phathom Pharmaceuticals has initiated the Phase 2 pHalcon-EoE-201 clinical trial for VOQUEZNA (vonoprazan) as a treatment for eosinophilic esophagitis (EoE) in adults, marking a significant step in addressing unmet medical needs in gastrointestinal diseases [1][2][4] Company Overview - Phathom Pharmaceuticals is focused on developing and commercializing novel treatments for gastrointestinal diseases, having in-licensed the rights to vonoprazan for the U.S., Europe, and Canada [30] - VOQUEZNA is currently approved in the U.S. for multiple indications, including the treatment of Erosive Esophagitis and as part of combination therapies for H. pylori infection [29][30] Clinical Trial Details - The pHalcon-EoE-201 study is a two-part, randomized, double-blind, placebo-controlled trial involving approximately 80 adults with endoscopic-confirmed EoE and dysphagia, with the first part lasting 12 weeks [2][4] - Topline primary and secondary results from the trial are expected to be available in 2027 [3] Treatment Context - Eosinophilic esophagitis is a chronic immune condition characterized by eosinophil accumulation in the esophagus, leading to inflammation and swallowing difficulties [5] - Current treatment options for EoE are limited, with only two approved therapies available, highlighting the potential significance of VOQUEZNA's acid suppression profile as a non-steroidal treatment option [2][5]