An Efficacy Study of Umeclidinium/Vilanterol With Tiotropium/Olodaterol in COPD Patients
Clinical trial NCT02799784 · COMPLETED
Trial details
- NCT number
- NCT02799784
- Sponsor
- GlaxoSmithKline
- Status
- COMPLETED
- Phase
- Phase 4
- Study type
- INTERVENTIONAL
- Start date
- 2016-07-14
- Primary completion
- 2017-04-27
- Enrollment
- 236
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