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1 study found for:    21428765 [PUBMED-IDS]

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Rank Status Study
1 Completed
Has Results 		Tiotropium Once Daily 18 Mcg Versus Salmeterol Twice Daily 50 Mcg on Time to First Exacerbation in COPD Patients.
Condition: Pulmonary Disease, Chronic Obstructive
Interventions: Drug: Tiotropium bromide;   Drug: Salmeterol;   Drug: Placebo Salmeterol;   Drug: Placebo Tiotropium
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† Indicates status has not been verified in more than two years