The anti-IgE antibody omalizumab reduces exacerbations and steroid requirement in allergic asthmatics
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- 1 August 2001
- journal article
- clinical trial
- Published by European Respiratory Society (ERS) in European Respiratory Journal
- Vol. 18 (2), 254-261
- https://doi.org/10.1183/09031936.01.00092101
Abstract
The clinical benefit and steroid-sparing effect of treatment with the anti-immunoglobulin-E (IgE) antibody, omalizumab, was assessed in patients with moderate-to-severe allergic asthma.After a run-in period, 546 allergic asthmatics (aged 12–76 yrs), symptomatic despite inhaled corticosteroids (500–1,200 µg daily of beclomethasone dipropionate), were randomized to receive double-blind either placebo or omalizumab every 2 or 4 weeks (depending on body weight and serum total IgE) subcutaneously for 7 months. A constant beclomethasone dose was maintained during a 16-week stable-steroid phase and progressively reduced to the lowest dose required for asthma control over the following 8 weeks. The latter dose was maintained for the next 4 weeks. Asthma exacerbations represented the primary variable.Compared to the placebo group, the omalizumab group showed 58% fewer exacerbations per patient during the stable-steroid phase (pversusthe placebo group (p<0.001) despite the greater reduction of the beclomethasone dosage on omalizumab (p<0.001). Treatment with omalizumab was well tolerated. The incidence of adverse events was similar in both groups.These results indicate that omalizumab therapy safely improves asthma control in allergic asthmatics who remain symptomatic despite regular use of inhaled corticosteroids and simultaneous reduction in corticosteroid requirement.Keywords
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