Efficacy and Safety APT-1011 in Adult Subjects With Eosinophilic Esophagitis (EoE) (FLUTE-2)

This is a 2-part randomized, double-blind, placebo-controlled study followed by an open-label extension (OLE) of APT-1011 in adults with EoE. Part A will evaluate the efficacy and safety of APT-1011 3 mg administered hora somni (HS; at bedtime) for the induction of response to treatment (histologic and symptomatic) over 12 weeks. Part B will evaluate histological relapse-free status in patients re-randomized to continue APT-1011 or placebo (active treatment withdrawal) until Week 52. Part C, the OLE, will continue until regulatory approval of APT-1011 or Sponsor termination of the study.