Efficacy and Safety/Tolerability of Grass MATA MPL

Grass MATA MPL has been developed by Allergy Therapeutics (UK) Ltd. to provide pre-seasonal specific immunotherapy for patients with proven type I hypersensitivity to cross reacting grass pollens causing rhinitis and/or conjunctivitis with or without mild to moderate asthma bronchiale. The purpose of this study is to compare the efficacy of Grass MATA MPL versus placebo in grass-allergic subjects following 4 subcutaneous injections of study medication administered before the start of the 2007 grass pollen season.