- Individuals suffering symptoms of allergic rhinoconjunctivitis or rhinitis during at least the preceding year, with or without allergic seasonal asthma caused by a clinically relevant sensitization to pollens (grasses AND P. judaica or O. europaea). Asthmatic patients can be included in the trial only if seasonal asthma is controlled with a medium daily dose minor or equal to 800 μg/day of budesonide or an equivalent or minor or equal to 400 μg/day of budesonide or an equivalent plus a long-acting- β2 agonist.