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J Allergy Clin Immunol. 1983 Jan;71(1 Pt 1):71-6.

Local intranasal immunotherapy for grass-allergic rhinitis.


In a double-blind controlled study, local intranasal immunotherapy was evaluated for the treatment of grass pollenosis. On the basis of serum grass-specific IgE levels, 50 grass-allergic patients were randomly divided into three groups and treated with either an aqueous solution of mixed-grass extract, a formaldehyde-modified mixed-grass extract (allergoid), or a histamine solution (placebo). Intranasal solutions were administered in gradually increasing doses over a preseasonal 10 wk period, adverse local reactions from the aqueous grass extract were frequent during treatment. Few adverse reactions occurred from the allergoid or histamine solutions. During the pollen season, patients receiving both grass extracts had much lower symptom/medication scores than patients receiving placebo. The severity of eye symptoms was the same in all groups. After treatment, serum grass-specific IgE rose in patients receiving aqueous and allergoid extract; no change was noted in patients receiving placebo therapy. Grass nasal secretory-specific IgA titers in each group did not change during the study. The results of this study suggest that local intranasal immunotherapy with either aqueous or allergoid grass extracts is clinically effective for the treatment of grass pollenosis. Adverse reactions associated with the aqueous extract may limit its usefulness. No correlation was present between the secretory immune response and clinical benefit.

[PubMed - indexed for MEDLINE]
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