• Curr Med Res Opin · Jun 2012

    Review Comparative Study

    Treatment of seasonal allergic rhinoconjunctivitis with a once-daily SQ-standardized grass allergy immunotherapy tablet.

    • Harold Nelson, Lucine Lehmann, and Michael S Blaiss.
    • Department of Medicine, Division of Allergy and Immunology, National Jewish Health Center, Denver, CO 80206, USA. nelsonh@njhealth.org
    • Curr Med Res Opin. 2012 Jun 1; 28 (6): 1043-51.

    ObjectivesSpecific immunotherapy with the grass allergy immunotherapy tablet (AIT) has been developed as an effective, well tolerated, and convenient treatment for grass pollen induced seasonal allergic rhinoconjunctivitis (ARC). Six phase II/III randomized, placebo-controlled trials with the duration of a single grass pollen season of treatment using the SQ-standardized grass AIT, Grazax (Phleum pratense, 75,000 SQ-T/2,800 BAU, ALK, Denmark), have been published previously. This review compares results from these trials.MethodsAs outcome measures and methods of assessing them were similar across the trials, we have summarized the main efficacy findings (Total Combined Score [TCS], average daily rhinoconjunctivitis symptom and medication scores, percentage of well days, quality of life scores) during a single season of treatment with grass AIT in adults and children with seasonal ARC.ResultsThe results of the European and North American trials were similar. Compared with the placebo group, who received symptomatic medications only, treatment with grass AIT resulted in fewer rhinoconjunctivitis symptoms, a lower intake of symptomatic medication, better patient self-rated quality of life and a greater percentage of well days during the entire grass pollen season. The data indicate that grass AIT treatment is equally effective in adults and children; the measured effect varies with pollen exposure, but is comparable across regions and continents, with a consistent difference compared with placebo in TCS that was above 20% for all trials. Local adverse events were experienced by the majority of patients. These reactions were generally mild to moderate in severity and transient in duration. Systemic adverse events were rare.ConclusionsThis review confirms SQ-standardized grass AIT as a suitable therapeutic option for seasonal use in patients aged 5 years or older with grass pollen induced ARC.

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