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| Group | Subjects n | Regular therapy | Exacerbation therapy |
| 1 | 71 | BDP 50 μg twice a day | BDP 100 μg/β2-rescue |
| 2 | 72 | Placebo | BDP 100 μg/β2-rescue |
| 3 | 71 | BDP 50 μg twice a day | Placebo/β2-rescue |
| 4 | 74 | Placebo | Placebo/β2-rescue |
TREXA: TReating Children to Prevent Exacerbations of Asthma; BDP: beclomethasone diproprionate.
