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Aggressive coseasonal immunotherapy in mountain cedar pollen allergy
Archives of Otolaryngology (Chicago, Ill. : 1960)
|December 1, 1982
Summary
Aggressive coseasonal immunotherapy using serial dilution end point titration (SDET) in mountain cedar pollen allergy patients significantly reduced IgE responses. This approach showed promising immunologic effects within the first few months of treatment.
Area of Science:
- Allergy and Immunology
- Immunotherapy Research
- Clinical Trials
Background:
- Coseasonal immunotherapy for mountain cedar pollen allergy aims to reduce allergic reactions.
- Optimizing antigen dosing is crucial for immunotherapy efficacy.
Purpose of the Study:
- To evaluate the immunologic effects of aggressive coseasonal immunotherapy using serial dilution end point titration (SDET) in adults with mountain cedar pollen allergy.
- To compare SDET with traditional dosing and placebo control.
Main Methods:
- Ninety adults with mountain cedar pollen allergy were assigned to three groups: SDET, traditional immunotherapy, and double-blind placebo control.
- Patients received twice-weekly injections, with aggressive titration towards maintenance doses.
- Antigen doses were determined by SDET (1:2,500 or 1:12,500 w/v), traditional dosing (1:62,500 w/v), or placebo.
Main Results:
- The SDET group received 11 times more antigen than the traditional group.
- Both immunotherapy groups showed a trend towards fewer symptoms compared to the placebo group.
- SDET subjects exhibited blunted total and specific IgE responses during the season, lower end-of-season specific IgE, and less shift in skin test reactivity.
Conclusions:
- Aggressive coseasonal immunotherapy, particularly with SDET, can achieve substantial immunologic effects within months.
- SDET demonstrates a potential for enhanced efficacy in managing mountain cedar pollen allergy.
- Early and aggressive immunotherapy may significantly modulate allergic immune responses.