DBV Technologies initiates a long-term follow-up study of Viaskin Peanut

DBV Technologies initiates a long-term follow-up study of Viaskin Peanut

OLFUS-VIPES will be the largest clinical study designed to assess efficacy, safety and long-term tolerance of peanut allergy treatment

Bagneux (France), September 4, 2013 - DBV Technologies (Euronext: DBV - ISIN: FR0010417345), creator of Viaskin®, a new standard in the treatment of allergy, announced today that the first patient has been enrolled in the open-label follow-up study (OLFUS) of VIPES phase IIb study to evaluate long-term efficacy and safety of Viaskin® Peanut. OLFUS-VIPES is an extension study for subjects who previously were randomized and have completed the VIPES study. It is planned to include 21 sites in 4 countries. Up to a maximum of 218 subjects can enroll in the OLFUS-VIPES study from the VIPES study.

Subjects enrolled in this follow-up study will receive an additional 24 months of Viaskin® Peanut treatment followed by a 2 months period without treatment in order to assess the level of sustained tolerance. This study will address the crucial question of tolerance post treatment. OLFUS-VIPES is a multicenter study conducted in Europe and in North America.

Charles Ruban, MBA, Chief Development Officer of DBV Technologies said: "We are pleased to report on the inclusion of the first patient in our open label follow-up study. This important milestone marks the beginning of a two-year period that will help us understand the long term benefits of Viaskin, and better characterize the potential induction of sustained tolerance in peanut allergic patients. No other specialty pharmaceutical company has ever achieved what DBV is currently in the process of demonstrating: safely treat peanut allergic patients by modulating the immunological response over time."

Subjects entering the OLFUS-VIPES study who had previously received Viaskin® Peanut at any of the three doses in the VIPES study will continue at the same dose (i.e., 50 microgram or 100 microgram or 250 microgram of peanut protein). Subjects entering the OLFUS-VIPES study who had previously received placebo in the VIPES study will be re-randomized in a 1:1:1 ratio to receive Viaskin® Peanut. The transition from the VIPES to the OLFUS-VIPES study will be blinded to investigators.

Repeated daily application of Viaskin® Peanut will continue as in the VIPES study. A new patch will be applied every 24 hours on the inner side of both upper arms for adults (above 18 years) and adolescents (12-17 years), or on the inter-scapular area of the back for children (7-11 years).

The objectives of this 24-month long-term efficacy and safety of the Viaskin® Peanut are as follows: