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Phathom Pharmaceuticals Completes Patient Enrollment Ahead of Schedule in Phase 2 pHalcon-EoE-201 Study of VOQUEZNA® (vonoprazan) in Eosinophilic Esophagitis (EoE)

$PHATPress releaseJun 23, 2026, 7:59 AM ETRead the release

Phathom completed enrollment in its Phase 2 pHalcon-EoE-201 study evaluating VOQUEZNA for eosinophilic esophagitis (EoE), dosing 95 patients across 41 U.S. sites ahead of schedule. This trial is the first large, placebo-controlled study of an acid suppression treatment in EoE, a condition with few approved therapies where PPIs are commonly used off-label.

Key figures

Drug Name
VOQUEZNA (vonoprazan)
Phase Of Trial
Phase 2
Site count
41
Patient count
95
Topline results timing
Q4 2026

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