Try the modernized beta website. Learn more about the modernization effort.
Working… Menu

COVIDNOCHE Trial (HFNO Versus CPAP Helmet) in COVID-19 Pneumonia (COVIDNOCHE)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04381923
Recruitment Status : Withdrawn (Unable to obtain IRB approval)
First Posted : May 11, 2020
Last Update Posted : April 5, 2022
Information provided by (Responsible Party):
Timothy Gaulton, M.D., University of Pennsylvania

Brief Summary:
The purpose of the COVIDNOCHE trial (HFNO versus CPAP Helmet Evaluation in COVID-19 Pneumonia) is to evaluate the comparative effectiveness of standard care non-invasive respiratory support (helmet CPAP versus HFNO) for acute hypoxemic respiratory failure from COVID-19 pneumonia on ventilator-free days (primary outcome) and other clinical outcomes measured up to 90 days.

Condition or disease Intervention/treatment Phase
Severe Acute Respiratory Syndrome Coronavirus 2 Hypoxemic Respiratory Failure Pneumonia, Viral COVID Device: Helmet Continuous Positive Airway Pressure (CPAP) Device: High Flow Nasal Oxygen (HFNO) Not Applicable

Detailed Description:
Coronavirus disease 2019 (COVID-19) is a respiratory illness that can cause acute arterial hypoxemia. Treatment with invasive ventilation improves oxygenation yet results in death in over 50% of cases. The high incidence of disease has also reduced resources needed to safely deliver invasive ventilation including mechanical ventilators and intravenous sedation. Non-invasive respiratory support has been shown to be efficacious in acute hypoxemic respiratory failure from other etiologies and has the potential to reduce rates of intubation and the time spent on mechanical ventilation in COVID-19. However, it is unknown which type of support is the most effective, limiting the ability to improve clinical outcomes and appropriately allocate resources. To help guide clinical practice and policy, it is critical to understand the comparative effectiveness of two forms of non-invasive respiratory support used worldwide, continuous positive airway pressure (CPAP) delivered via a helmet interface and high flow nasal oxygen (HFNO).

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 0 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Intervention Model Description: This will be a randomized study with alternating treatment assignment in which all advanced respiratory units will be assigned to use one of two default interventions (helmet CPAP vs HFNO) as the first-line treatment for refractory hypoxemia (defined as an oxygen saturation (Sp02) of 92% or less on on ≥ 6 LPM (liters per minute) nasal cannula (NC) oxygen). The first-line treatment will be alternated in each unit at 14-day intervals. The initial assignment will be determined by a computer randomization scheme. Patients who are still on their assigned intervention during crossover will remain on that assigned intervention. A design with numerous short periods and frequent crossovers was selected to minimize the risk of changes over time in the patient population and usual care confounding trial results. A 14-day period is also felt to be the minimal time needed to ensure device availability and adherence.
Masking: Single (Outcomes Assessor)
Primary Purpose: Supportive Care
Official Title: High Flow Nasal Oxygen Versus Continuous Positive Airway Pressure Helmet Evaluation: A Randomized Crossover Trial in COVID-19 Pneumonia
Estimated Study Start Date : November 15, 2021
Estimated Primary Completion Date : November 15, 2022
Estimated Study Completion Date : December 15, 2022

Arm Intervention/treatment
Active Comparator: Helmet Continuous Positive Airway Pressure (CPAP)
When a patient has an Sp02 < 92% on ≥ 6 LPM NC, helmet CPAP will be applied unless a specific contraindication is present.
Device: Helmet Continuous Positive Airway Pressure (CPAP)
Helmet CPAP will be initiated at a pressure of 5 cmH20 and fraction of inspired oxygen (Fi02) of < 60%. If oxygen saturation (Sp02) remains < 92%, pressure will be increased to 10 cmH20. FiO2 will then be tapered to target a SpO2 ≥ 92%. Breaks with intervening HFNO use will be provided as needed for meals and during hours of sleep.

Active Comparator: High Flow Nasal Oxygen (HFNO)
When a patient has an Sp02 < 92% on ≥ 6 LPM NC , HFNO (≥ 40 LPM) will be applied unless a specific contraindication is present
Device: High Flow Nasal Oxygen (HFNO)
HFNO will be initiated at a flow rate of 40 LPM and a fraction of inspired oxygen (Fi02) of < 60%. If oxygen saturation (SpO2) remains < 92%, the flow rate will be increased to 60 LPM. FiO2 will then be adjusted to target a SpO2 ≥ 92%. Patients with discomfort due to HFNO may have their flow rate decreased until the discomfort resolves.
Other Name: High Flow Nasal Cannula (HFNC)

Primary Outcome Measures :
  1. Ventilator-Free Days (VFD) [ Time Frame: 28 days ]
    VFD is the number of days alive and free of mechanical ventilation in the first 28 days after study enrollment. Death before 28 days will be assigned a VFD equal to 0 to penalize non-survival. In cases of repeated intubation and extubation, periods free from invasive ventilation and lasting at least 24 consecutive hours will be calculated and summed. Timing of intubation and extubation will be captured in hours, and the number of hours a patient received invasive ventilation will be used to calculate duration of ventilation.

Secondary Outcome Measures :
  1. ICU and Hospital Length of Stay [ Time Frame: 28 days ]
    Days spent in the ICU and hospital after time of enrollment

  2. Intubation [ Time Frame: 28 days ]
    Incidence and time to intubation in days after the time of enrollment

  3. Renal Replacement Therapy (RRT) [ Time Frame: 28 days ]
    Incidence of RRT after the time of enrollment

  4. Mortality [ Time Frame: 28 days, 90 days ]
    Death from any cause during after the time of enrollment

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adult patients with confirmed COVID-19 with an Sp02 < 92% on ≥ 6 liters NC admitted to a Penn Medicine advanced respiratory unit. An advanced respiratory unit is a unit capable of non-invasive respiratory support such as an ICU or intermediate care unit.

Exclusion Criteria:

Patients will be excluded if they meet ≥ 1 of the following criteria based on current Penn Medicine respiratory guidelines and prior trials of non-invasive respiratory support:

  • Respiratory failure related to other etiology (e.g. exacerbation of chronic obstructive pulmonary disease, acute pulmonary edema)
  • Baseline oxygen requirement
  • Diagnosis of acute or chronic hypoventilation
  • Tracheostomy
  • Claustrophobia
  • Prior intubation during hospitalization
  • Urgent need for endotracheal intubation
  • Other contraindications to non-invasive respiratory support (glasgow coma scale lower than 8, absence of airway protective gag reflex, elevated intracranial pressure, upper airway obstruction)
  • Patient dose not wave to receive the assigned intervention.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04381923

Layout table for location information
United States, Pennsylvania
University of Pennsylvania
Philadelphia, Pennsylvania, United States, 19104
Sponsors and Collaborators
University of Pennsylvania
Layout table for additonal information
Responsible Party: Timothy Gaulton, M.D., Assistant Professor of Anesthesiology and Critical Care, University of Pennsylvania Identifier: NCT04381923    
Other Study ID Numbers: 843124
First Posted: May 11, 2020    Key Record Dates
Last Update Posted: April 5, 2022
Last Verified: March 2022

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Product Manufactured in and Exported from the U.S.: No
Additional relevant MeSH terms:
Layout table for MeSH terms
Severe Acute Respiratory Syndrome
Pneumonia, Viral
Respiratory Insufficiency
Respiratory Tract Infections
Lung Diseases
Respiratory Tract Diseases
Coronavirus Infections
Coronaviridae Infections
Nidovirales Infections
RNA Virus Infections
Virus Diseases
Respiration Disorders