ZU-SkinSIT-001 Single Center Phase I/IIa, Placebo Controlled, Randomized, Double Blind Study to Assess the Clinical Efficacy and Safety of a Novel Method of Specific Allergen Immunotherapy in Grass Pollen Allergic Subjects by Epicutanous Allergen Administration

Primary Objective Comparison of the inhibition of the allergic response assessed by nasal provocation test after epicutanous pollen allergen administration and placebo epicutaneous administration.

Secondary Objectives Comparison of the efficacy of the placebo with that of the epicutanous pollen allergen administration evaluated by visual analog symptom scales (nasal itching, sneezing, rhinorrhea, conjunctival redness, and lacrimation, lung symptoms ), Comparison of the inhibition of the allergic response assessed by skin prick test after epicutanous pollen allergen administration and placebo epicutaneous administration.

• Trial with medicinal product