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Evaluating the Utility of Continuous Positive Airway Pressure in the Treatment of High Altitude Pulmonary Edema

Continuous Positive Airway Pressure Clinical Trial

Official title:
Multicenter Randomized Double-Blind Control Trial Evaluating the Utility of Continuous Positive Airway Pressure (CPAP) in the Treatment of High Altitude Pulmonary Edema (HAPE)

Clinical Trial Summary

The primary objective is to evaluate the efficacy of continuous positive pressure on resolution of high-altitude pulmonary edema vs high flow oxygen. The secondary objective is to derive an incidence of high-altitude pulmonary edema based on the elevation and timing from which the subject arrives. Additionally, in a convenience sample of the base study population, an ultrasound evaluation for the presence of B lines in the lungs will be conducted after 2 hours.

Clinical Trial Description

Multicenter, double-blinded, randomized control trial. Enrollment is based on presentation to one of the treating facilities with clinical signs and symptoms of high-altitude pulmonary edema with a recent arrival at high altitude, an oxygen saturation below 85%, and radiographic evidence of noncardiogenic pulmonary edema. A total of 264 patients will be randomized 1:1 across 2 study arms: a CPAP mask set to 15cm H2O and an altered CPAP mask in which the pressure valve has been modified to deliver no positive pressure. All patients will be treated with 30mg nifedipine XR. Except for the application of positive pressure, all other interventions are performed in the context of everyday clinical practice, and thus will be equivalent for participants in both arms. Patients will be evaluated every 30 minutes for their ability to maintain an oxygen saturation of 92% with a normal respiratory rate and no signs of increased work of breathing on 2 liters of nasal cannula oxygen for a total of up to a maximum treatment length of 2 hours. The primary efficacy endpoint will be assessed every 30 minutes for 2 hours. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04186598
Study type Interventional
Source Centura Health
Contact
Status Completed
Phase N/A
Start date January 20, 2020
Completion date September 13, 2023
View Details
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