Efficacy and Tolerability of Symbicort as an add-on Treatment to Spiriva Compare With Spiriva Alone in Patients With Severe Chronic Obstructive Pulmonary Disease (COPD)
Clinical trial NCT01397890 · COMPLETED
Trial details
- NCT number
- NCT01397890
- Sponsor
- AstraZeneca
- Status
- COMPLETED
- Phase
- Phase 4
- Study type
- INTERVENTIONAL
- Start date
- 2011-07-01
- Primary completion
- 2013-06-01
- Enrollment
- 793
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