The outcomes of this 1-year , randomized , placebo-controlled , double-blind , double-dummy study were symptom and medication scores , visual analog scores ( VAS ) , titrated skin prick tests , nasal and bronchial allergen provocation doses , serum house dust mite-specific immunglobulin E ( HDM-sIgE ) , sIgG4 , IL-10 and IFN - levels .
