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Key Record Dates Identifier: NCT02985918
Brief Title: High-intensity Versus Conventional-intensity Noninvasive Positive Pressure Ventilation in Acute Exacerbation of Chronic Obstructive Pulmonary Disease: the HAPPEN Study (HAPPEN)

First Submitted : December 2, 2016
First Submitted that Met QC Criteria : December 5, 2016
First Posted : December 7, 2016 (Estimate)

Last Update Submitted that Met QC Criteria : May 16, 2019
Last Update Posted : May 20, 2019