DBV Technologies Announces Completion of Enrollment of Phase IIA Study of Viaskin Milk for the Treatment of Pediatric Eosinophilic Esophagitis

Press Release
Montrouge, France, February 3, 2017

DBV Technologies Announces Completion of Enrollment of Phase IIA Study of Viaskin Milk for the Treatment of Pediatric Eosinophilic Esophagitis

SMILEE will evaluate the efficacy and safety of Viaskin Milk for the treatment of milk-induced EoE in children ages 4-17

DBV Technologies (Euronext: DBV - ISIN: FR0010417345 - Nasdaq Stock Market: DBVT), today announced that enrollment in SMILEE (Study of Efficacy and Safety of the Viaskin MILk in Milk-Induced Eosinophilic Esophagitis in Children), a Phase IIA investigator-initiated clinical trial assessing the safety and efficacy of Viaskin Milk for the treatment of milk-induced Eosinophilic Esophagitis (EoE) in children ages 4-17 has been completed. In this study, 20 children with milk-induced EoE have been randomized 3:1 to receive Viaskin Milk 500 µg or placebo for up to 11 months. Results for the SMILEE study are expected in the first half of 2018.

"EoE is a progressive and chronic inflammatory disease that can be debilitating and painful for patients. Over the last decade, EoE has increased in incidence in the United States, but no FDA approved therapies are available for patients today. If left untreated, EoE may cause permanent and significant damage to the esophagus and gastrointestinal track," said Dr. Antonella Cianferoni, Assistant Professor of Pediatrics at Children`s Hospital of Philadelphia (CHOP) and Principal Investigator of SMILEE. "In some instances, food-induced EoE can be caused by milk allergy, and we are eager to explore the safety and efficacy of Viaskin in treating these patients. We look forward to seeing if the encouraging preclinical results observed with Viaskin Milk in EoE can be replicated in this proof of concept Phase IIA trial."

The SMILEE trial is being conducted under an Investigational New Drug (IND) application held by Dr. Jonathan Spergel at Children`s Hospital of Philadelphia (CHOP).

About the SMILEE Study
SMILEE is a double-blind, placebo-controlled, randomized 3:1 trial designed to evaluate the safety and efficacy of Viaskin Milk 500 mcg for treating milk-induced EoE in children. Subjects with a documented medical history of EoE after ingestion of milk who currently adhere to a strict milk-free diet will be considered for participation in the trial. In this study, 20 subjects, 15 in the active treatment group and five in the placebo group, were randomized and will be treated for nine months while remaining on a milk-free diet. The subjects will then continue their assigned treatment during a milk reintroduction period (1 week to 2 months), for a total of up to 11 months of treatment. The primary efficacy endpoint will evaluate the maximum esophageal eosinophil count in the active treatment group compared to placebo at the end of treatment. Secondary efficacy endpoints will include the change in symptoms score at the end of treatment compared to baseline and mean esophageal eosinophil count at the end of treatment.