First patient dosed, with topline results expected in 2027pHalcon-EoE-201 is the first large, well-controlled clinical trial of an acid secretory treatment in EoE FLORHAM PARK, N.J., Nov. 04, 2025 (GLOBE NEWSWIRE) -- Phathom Pharmaceuticals, Inc. (Nasdaq: PHAT), a biopharmaceutical company focused on developing and commercializing novel treatments for gastrointestinal (GI) diseases, today announced the first patient has been dosed in its Phase 2 pHalcon-EoE-201 clinical trial evaluating VOQUEZNA® (vonopraza ...