|Trial Design||Double blind|
|Trial Length||1-6 months|
|Number of Subjects||64|
|Age Range||18-29, 30-44, 45-64|
Supplementation of 500mg alpha-tocopherol daily for six weeks in nonsmoking asthmatics on a steady dose of corticosteroids failed to improve symptoms relative to placebo; immunoglobulin levels and subjective as well as empirical measurements were unchanged.