Double blind, multicenter, parallel, placebo controlled study. It includes 150 subjects sensitised to cupressaceae and grass pollen, from 14 to 65 years of age. Medication treatment during 1 year. The main outcome: CSMS
A Randomized, Double-Blinded, Placebo-Controlled, Prospective, Multicenter Clinical Trial to Evaluate the Efficacy and Safety of Subcutaneous Immunotherapy in Patients With Rhinitis With or Without Mild to Moderate Asthma Sensitized to cupressaceae and grasses.