PMID: 812895Dec 1, 1975

The effect of cromolyn sodium powder as a treatment for ragweed pollinosis

The Journal of Allergy and Clinical Immunology
K M LeifermanG J Gleich


The effect of treating ragweed pollinosis with intranasal cromolyn sodium powder was evaluated in 26 patients in a double-blind clinical study. Thirteen matched patient pairs were treated by either nasal insufflation of cromolyn sodium powder, 20 mg three times daily, or by a placebo powder. Patients were monitored for severity of symptoms by means of daily symptom diaries collected weekly throughout the pollen season. Serum samples were obtained in July prior to the ragweed season and following the ragweed season during the first and fourth weeks of October for the determination of ragweed-specific IgE antibody levels by the radioallergosorbent test. A significant reduction in symptom severity was observed in the treated patients with high preseasonal levels of IgE antibody to ragweed. Initially the levels of IgE antibody to ragweed did not differ between the two groups. IgE antibody levels increased in both groups after pollen exposure, but the treated group showed a significantly greater rise in IgE antibody levels. The results suggest that treatment with cromolyn sodium enhanced IgE antibody response to pollen exposure and significantly reduced the severity of hay fever symptoms in patients with high preseasonal levels of I...Continue Reading


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Related Concepts

Radioallergosorbent Test
Immunoglobulin E
Hay Fever
Cromolyn Sodium
Clinical Trials
Administration, Intranasal
Bee pollen

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