Efficacy of immunotherapy on asthma and allergic rhinitis (AR)
Clinical efficacy of SLIT
The evaluation of clinical efficacy of SLIT relies on the assessment of symptom severity and rescue medication (Table 1).
Most clinical trials used the assessment of traditional symptom scores (graded from 0 to 3) plus recording of doses of rescue medications. In some trials, other evaluation parameters were applied, including visual analogue scale (VAS), combined score, symptom-free days and medication-free days. Most trials showed positive results for one or more parametrs (Table 2); one study presented negative results and two studies reported partial or clinical efficacy.