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  • Title: Safety and efficacy of specific immunotherapy with standardized allergenic extracts adsorbed on aluminium hydroxide.
    Author: Wüthrich B, Gumowski PL, Fäh J, Hürlimann A, Deluze C, André C, Fadel R, Carat F.
    Journal: J Investig Allergol Clin Immunol; 2001; 11(3):149-56. PubMed ID: 11831445.
    Abstract:
    Specific immunotherapy (SIT) with standardized allergenic extracts is the only specific treatment of allergic patients. In order to evaluate the safety, side effects, and efficacy of SIT with standardized extracts adsorbed to aluminium hydroxide manufactured by Stallergènes S.A., a prospective multicenter open study was performed in Switzerland. Fifteen patients suffering from seasonal or perennial rhinoconjunctivitis with or without asthma were included in the trial and received a total of 442 injections with standardized mix of grass pollens (n = 8) or house dust mites (n = 7) over one year. Low incidence of local reactions was noted (7%). Subcutaneous nodules (granuloma) following injections were not recorded. Only a few systemic reactions (one mild rhinitis, one mild asthma attack, one worsening of eczema) were recorded. No anaphylactic reactions requiring adrenaline were recorded. No admission to the hospital was required. Global appreciation of the physicians and the patients after the first year of treatment showed a good efficacy of SIT: Only two patients (13%) did not improve. A worsening of the symptoms was not observed. In order to assess the efficacy, skin reactivity and conjunctival reactivity to allergen challenge were compared before and after one year of treatment as well as immunologic parameters (such as specific IgE, specific IgG4) in blood samples. A significant decrease in skin reactivity (p = .001) and in conjunctival reactivity (p = .01) was observed. Specific IgE level decreased for both types of allergens but to a significantly greater extent for grass pollen allergen (p = .03). Specific IgG4 level increased significantly for grass (p = 0.01) and for mites (p = 0.04). Specific immunotherapy appears to be a valuable tool in the efficient management of the allergic respiratory diseases.
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