COVID-19Helmet-COVIDNCT04477668
Helmet Non-Invasive Ventilation for COVID-19 Patients
A study testing Helmet non-invasive ventilation in people with COVID-19 and Acute Hypoxemic Respiratory Failure, run by King Abdullah International Medical Research Center at 1 site in Saudi Arabia.
Trial summary
Study hypothesis: Non-invasive positive pressure ventilation delivered by helmet will reduce 28-day all-cause mortality in patients with suspected or confirmed severe COVID-19 pneumonia and acute hypoxemic respiratory failure Read more about this study
- Who is it for?
- Ages 14 years and older
- Conditions the study is for
- COVID-19, Acute Hypoxemic Respiratory Failure
- What is being tested?
- Helmet non-invasive ventilation
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 322 participants
- Where
- 1 siteSaudi Arabia
- Study dates
- 8 Feb 2021to 30 Jun 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 14 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Suspected or confirmed COVID-19
- Aged ≥14 years old at the participating ICU. ICUs that use other age cut-off for adult patients will adhere to their local standard (16 or 18 years)
- Acute hypoxemic respiratory failure based on PaO2/FiO2 ratio <200 despite supplemental oxygen with a partial or non-rebreathing mask at a flow rate >10 L/min or above
- Intact airway protective gag reflex
- Able to follow instructions (e.g. squeeze hand on command, eye contact with care provider, stick out tongue on command, etc.)
Who cannot join
- Prior intubation during this hospital admission
- Cardiopulmonary arrest
- Glasgow coma scale <12
- Tracheostomy
- Upper airway obstruction
- Active epistaxis
Show all 15Show fewer
- Requirement for more than one vasopressor to maintain mean arterial pressure > 65 mm Hg
- Pregnancy
- Imminent intubation
- Patients with do not intubate orders or equivalent
- Enrolled in another trial for which co-enrolment is not approved including trials on mechanical ventilation
- Patients already treated with helmet
- Patients with chronic carbon dioxide retention (PaCO2 >45)
- Previous enrolment in this trial
- The primary cause of respiratory failure is not heart failure as judged by the treating team
Trial locations and contacts
1 site in 1 country.
Saudi Arabia1 site
Intensive Care Department, King Abdulaziz Medical City, National Guard Health Affairs
Riyadh, 11426
About this study
Study hypothesis: Non-invasive positive pressure ventilation delivered by helmet will reduce 28-day all-cause mortality in patients with suspected or confirmed severe COVID-19 pneumonia and acute hypoxemic respiratory failure
Read the detailed description
This will be a pragmatic parallel randomized control trial that will compare helmet nonivasive ventilation with standard of care to standard of care alone in 1:1 ratio. The trial will be implemented in multiple centers.
- Conditions
- COVID-19, Acute Hypoxemic Respiratory Failure
- Being tested
- Helmet non-invasive ventilation
- Keywords
- helmet nonivasive ventilation
- Medical subject headings
- COVID-19, Respiratory Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Helmet non-invasive ventilationDevice
Patients will be allocated to helmet non-invasive ventilation
| Study group | Role | What they receive |
|---|---|---|
| Helmet group | Experimental | Patients will be allocated to helmet non-invasive ventilation Receives: Device: Helmet non-invasive ventilation |
| Control group | No intervention | Patients will be allocated to standard of care |
What is being measured
The primary outcome is the main question the study is designed to answer.
28-day all-cause mortality
all cause mortality
Measured: 28 days from randomization
Secondary outcomes (13)
Intubation rate within 28 days
endotracheal intubation
Measured: 28 days from randomization
ICU mortality
ICU death
Measured: 180 days from randomization
Hospital mortality (censored at day 180)
hospital death
Measured: 180 days from randomization
Hospital length of stay
length of stay in the hospital
Measured: 180 days from randomization
ICU free days at day 28
days not in ICU
Measured: 28 days from randomization
Invasive ventilation-free days at day 28
days without ventilator support
Measured: 28 days from randomization
Renal replacement therapy-free days at day 28
days without renal replacement therapy received
Measured: 28 days from randomization
Vasopressor-free days at day 28
days without vasopressor support
Measured: 28 days from randomization
Safety outcome: skin pressure ulcers
presence of pressure ulcers
Measured: 28 days from randomization
Safety outcome: barotrauma
incidence of barotrauma
Measured: 28 days from randomization
Serious adverse events (including cardiovascular events and device complications)
reporting of abovementioned adverse events
Measured: 28 days from randomization
180-day all-cause mortality
all cause mortality
Measured: 180 days from randomization
Follow-up study: 180-day 5-level EQ-5D version
The descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems.
Measured: 180 days from randomization
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jul 2020
- Study start8 Feb 2021
- Primary completion16 Nov 2021
- Study completion30 Jun 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for COVID-19Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 322 participants (actual)
Sponsor and investigators
- Lead sponsor
- King Abdullah International Medical Research Center
- Sponsor type
- University, hospital or other
- Collaborators
- King Abdulaziz Medical City, Riyadh, Saudi Arabia, King Fahd Hospital of the University, Al Khobar, Saudi Arabia, Aseer Central Hospital, Abha, Saudi Arabia, King Faisal Specialist Hospital & Research Center, King Fahad Hospital, Madinah, Saudi Arabia, Al Amiri Hospital, Kuwait, King Abdulaziz University, King Saud Medical City
- Responsible party
- Sponsor
- Investigators
- Yaseen Arabi, MD, Principal investigator, King Abdulaziz Medical City - Riyadh
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04477668
- Sponsor's protocol ID
- RC20/306/R
- Acronym
- Helmet-COVID
- Status last verified
- Sep 2022
- First submitted
- 9 Jul 2020
- Last updated
- 9 Sep 2022
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Amer M, Al-Dorzi HM, Aldekhyl S, Al Qahtani S, Lewis K, Abdukahil SA, Altamimi AM, Alanazi SA, AlObaidi M, Alswaidan LM, Al Harbi MK, Al Qasim E, Kharaba A, Albrahim T, Alshahrani MS, Al-Fares AA, Al Bshabshe A, Mady A, Al Duhailib Z, Algethamy H, Jose J, Al Mutairi M, Al Zumai O, Al Haji H, Alaqeily A, Al Aseri Z, Al-Omari A, Al-Dawood A, Tlayjeh H, Arabi YM. Dexmedetomidine for sedation during noninvasive ventilation in COVID-19 patients from the Helmet-COVID randomized clinical trial post-hoc analysis. Sci Rep. 2026 May 9;16(1):21228. doi: 10.1038/s41598-026-49301-9.
PubMed 42103809Arabi YM, Al-Dorzi HM, Aldekhyl S, Al Qahtani S, Abdukahil SA, Al Qasim E, Al Harbi MK, Kharaba A, Albrahim T, Alshahrani MS, Al-Fares AA, Al Bshabshe A, Mady A, Al Duhailib Z, Algethamy H, Jose J, Al Mutairi M, Al Zumai O, Al Haji H, Alaqeily A, Al Wehaibi W, Al Aseri Z, Al-Omari A, Tlayjeh H, Al-Dawood A; Saudi Critical Care Trials Group. Long-term outcomes of patients with COVID-19 treated with helmet noninvasive ventilation or usual respiratory support: follow-up study of the Helmet-COVID randomized clinical trial. Intensive Care Med. 2023 Mar;49(3):302-312. doi: 10.1007/s00134-023-06981-5. Epub 2023 Feb 23.
PubMed 36820878Arabi YM, Aldekhyl S, Al Qahtani S, Al-Dorzi HM, Abdukahil SA, Al Harbi MK, Al Qasim E, Kharaba A, Albrahim T, Alshahrani MS, Al-Fares AA, Al Bshabshe A, Mady A, Al Duhailib Z, Algethamy H, Jose J, Al Mutairi M, Al Zumai O, Al Haji H, Alaqeily A, Al Aseri Z, Al-Omari A, Al-Dawood A, Tlayjeh H; Saudi Critical Care Trials Group. Effect of Helmet Noninvasive Ventilation vs Usual Respiratory Support on Mortality Among Patients With Acute Hypoxemic Respiratory Failure Due to COVID-19: The HELMET-COVID Randomized Clinical Trial. JAMA. 2022 Sep 20;328(11):1063-1072. doi: 10.1001/jama.2022.15599.
PubMed 36125473Arabi Y, Aldekhyl S, Al Qahtani S, Al-Dorzi HM, Abdukahil SA, Jose J, Al Harbi MK, Al Haji H, Al Mutairi M, Al Zumai O, Al Qasim E, Al Wehaibi W, Alshahrani M, Albrahim T, Mady A, Al Bshabshe A, Al Aseri Z, Al Duhailib Z, Kharaba A, Alqahtani R, Algethamy H, Alfaris O, Alnafel O, Al-Fares AA, Tlayjeh H. Helmet noninvasive ventilation for COVID-19 patients (Helmet-COVID): statistical analysis plan for a randomized controlled trial. Trials. 2022 Feb 2;23(1):105. doi: 10.1186/s13063-021-05988-x.
PubMed 35109898Arabi YM, Tlayjeh H, Aldekhyl S, Al-Dorzi HM, Abdukahil SA, Al Harbi MK, Al Haji H, Al Mutairi M, Al Zumai O, Al Qasim E, Al Wehaibi W, Al Qahtani S, Al-Hameed F, Chalabi J, Alshahrani M, Albrahim T, Alharthy A, Mady A, Bin Eshaq A, Al Bshabshe AA, Al Aseri Z, Al Duhailib Z, Kharaba A, Alqahtani R, Al Ghamdi A, Altalag A, Alghamdi K, Almaani M, Algethamy H, Al Aqeily A, Al Baseet F, Al Samannoudi H, Al Obaidi M, Ismaiel YT, Al-Fares AA. Helmet Non-Invasive Ventilation for COVID-19 Patients (Helmet-COVID): study protocol for a multicentre randomised controlled trial. BMJ Open. 2021 Aug 26;11(8):e052169. doi: 10.1136/bmjopen-2021-052169.
PubMed 34446500
Study at a glance
From the registry record, last updated by the sponsor on 9 Sep 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Helmet Non-Invasive Ventilation for COVID-19 Patients
- ClinicalTrials.gov ID
- NCT04477668
- Acronym / sponsor ID
- Helmet-COVID / RC20/306/R
- Conditions
- COVID-19, Acute Hypoxemic Respiratory Failure
- Keywords
- helmet nonivasive ventilation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 322 participants (actual)
- Lead sponsor
- King Abdullah International Medical Research CenterUniversity, hospital or other
- Collaborators
- King Abdulaziz Medical City, Riyadh, Saudi Arabia, King Fahd Hospital of the University, Al Khobar, Saudi Arabia, Aseer Central Hospital, Abha, Saudi Arabia, King Faisal Specialist Hospital & Research Center, King Fahad Hospital, Madinah, Saudi Arabia, Al Amiri Hospital, Kuwait, King Abdulaziz University, King Saud Medical City
- Study start
- 8 Feb 2021 (actual)
- Primary completion
- 16 Nov 2021 (actual)
- Study completion
- 30 Jun 2022 (actual)
- First posted
- 20 Jul 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Study hypothesis: Non-invasive positive pressure ventilation delivered by helmet will reduce 28-day all-cause mortality in patients with suspected or confirmed severe COVID-19 pneumonia and acute hypoxemic respiratory failure
Detailed description
This will be a pragmatic parallel randomized control trial that will compare helmet nonivasive ventilation with standard of care to standard of care alone in 1:1 ratio. The trial will be implemented in multiple centers.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Helmet group | Experimental | Device: Helmet non-invasive ventilationPatients will be allocated to helmet non-invasive ventilation |
| Control group | No intervention | –Patients will be allocated to standard of care |
Who may qualify
- Ages
- 14 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (5 listed)
- Suspected or confirmed COVID-19
- Aged ≥14 years old at the participating ICU. ICUs that use other age cut-off for adult patients will adhere to their local standard (16 or 18 years)
- Acute hypoxemic respiratory failure based on PaO2/FiO2 ratio <200 despite supplemental oxygen with a partial or non-rebreathing mask at a flow rate >10 L/min or above
- Intact airway protective gag reflex
- Able to follow instructions (e.g. squeeze hand on command, eye contact with care provider, stick out tongue on command, etc.)
Key exclusion criteria (15 listed)
- Prior intubation during this hospital admission
- Cardiopulmonary arrest
- Glasgow coma scale <12
- Tracheostomy
- Upper airway obstruction
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Helmet non-invasive ventilationPatients will be allocated to helmet non-invasive ventilation | Device | Helmet group |
Primary outcome
28-day all-cause mortality
Time frame: 28 days from randomization
all cause mortality
13 secondary outcomes
Intubation rate within 28 days
Time frame: 28 days from randomization
ICU mortality
Time frame: 180 days from randomization
Hospital mortality (censored at day 180)
Time frame: 180 days from randomization
Hospital length of stay
Time frame: 180 days from randomization
ICU free days at day 28
Time frame: 28 days from randomization
Invasive ventilation-free days at day 28
Time frame: 28 days from randomization
Renal replacement therapy-free days at day 28
Time frame: 28 days from randomization
Vasopressor-free days at day 28
Time frame: 28 days from randomization
Safety outcome: skin pressure ulcers
Time frame: 28 days from randomization
Safety outcome: barotrauma
Time frame: 28 days from randomization
Serious adverse events (including cardiovascular events and device complications)
Time frame: 28 days from randomization
180-day all-cause mortality
Time frame: 180 days from randomization
Follow-up study: 180-day 5-level EQ-5D version
Time frame: 180 days from randomization
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Sep 2022.
- Derived from this study: PubMed 42103809Amer M, Al-Dorzi HM, Aldekhyl S, Al Qahtani S, Lewis K, Abdukahil SA, Altamimi AM, Alanazi SA, AlObaidi M, Alswaidan LM, Al Harbi MK, Al Qasim E, Kharaba A, Albrahim T, Alshahrani MS, Al-Fares AA, Al Bshabshe A, Mady A, Al Duhailib Z, Algethamy H, Jose J, Al Mutairi M, Al Zumai O, Al Haji H, Alaqeily A, Al Aseri Z, Al-Omari A, Al-Dawood A, Tlayjeh H, Arabi YM. Dexmedetomidine for sedation during noninvasive ventilation in COVID-19 patients from the Helmet-COVID randomized clinical trial post-hoc analysis. Sci Rep. 2026 May 9;16(1):21228. doi: 10.1038/s41598-026-49301-9.
- Derived from this study: PubMed 36820878Arabi YM, Al-Dorzi HM, Aldekhyl S, Al Qahtani S, Abdukahil SA, Al Qasim E, Al Harbi MK, Kharaba A, Albrahim T, Alshahrani MS, Al-Fares AA, Al Bshabshe A, Mady A, Al Duhailib Z, Algethamy H, Jose J, Al Mutairi M, Al Zumai O, Al Haji H, Alaqeily A, Al Wehaibi W, Al Aseri Z, Al-Omari A, Tlayjeh H, Al-Dawood A; Saudi Critical Care Trials Group. Long-term outcomes of patients with COVID-19 treated with helmet noninvasive ventilation or usual respiratory support: follow-up study of the Helmet-COVID randomized clinical trial. Intensive Care Med. 2023 Mar;49(3):302-312. doi: 10.1007/s00134-023-06981-5. Epub 2023 Feb 23.
- Derived from this study: PubMed 36125473Arabi YM, Aldekhyl S, Al Qahtani S, Al-Dorzi HM, Abdukahil SA, Al Harbi MK, Al Qasim E, Kharaba A, Albrahim T, Alshahrani MS, Al-Fares AA, Al Bshabshe A, Mady A, Al Duhailib Z, Algethamy H, Jose J, Al Mutairi M, Al Zumai O, Al Haji H, Alaqeily A, Al Aseri Z, Al-Omari A, Al-Dawood A, Tlayjeh H; Saudi Critical Care Trials Group. Effect of Helmet Noninvasive Ventilation vs Usual Respiratory Support on Mortality Among Patients With Acute Hypoxemic Respiratory Failure Due to COVID-19: The HELMET-COVID Randomized Clinical Trial. JAMA. 2022 Sep 20;328(11):1063-1072. doi: 10.1001/jama.2022.15599.
- Derived from this study: PubMed 35109898Arabi Y, Aldekhyl S, Al Qahtani S, Al-Dorzi HM, Abdukahil SA, Jose J, Al Harbi MK, Al Haji H, Al Mutairi M, Al Zumai O, Al Qasim E, Al Wehaibi W, Alshahrani M, Albrahim T, Mady A, Al Bshabshe A, Al Aseri Z, Al Duhailib Z, Kharaba A, Alqahtani R, Algethamy H, Alfaris O, Alnafel O, Al-Fares AA, Tlayjeh H. Helmet noninvasive ventilation for COVID-19 patients (Helmet-COVID): statistical analysis plan for a randomized controlled trial. Trials. 2022 Feb 2;23(1):105. doi: 10.1186/s13063-021-05988-x.
- Derived from this study: PubMed 34446500Arabi YM, Tlayjeh H, Aldekhyl S, Al-Dorzi HM, Abdukahil SA, Al Harbi MK, Al Haji H, Al Mutairi M, Al Zumai O, Al Qasim E, Al Wehaibi W, Al Qahtani S, Al-Hameed F, Chalabi J, Alshahrani M, Albrahim T, Alharthy A, Mady A, Bin Eshaq A, Al Bshabshe AA, Al Aseri Z, Al Duhailib Z, Kharaba A, Alqahtani R, Al Ghamdi A, Altalag A, Alghamdi K, Almaani M, Algethamy H, Al Aqeily A, Al Baseet F, Al Samannoudi H, Al Obaidi M, Ismaiel YT, Al-Fares AA. Helmet Non-Invasive Ventilation for COVID-19 Patients (Helmet-COVID): study protocol for a multicentre randomised controlled trial. BMJ Open. 2021 Aug 26;11(8):e052169. doi: 10.1136/bmjopen-2021-052169.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Yaseen Arabi, MD principal investigator
King Abdulaziz Medical City - Riyadh
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Helmet non-invasive ventilation in people with COVID-19 and Acute Hypoxemic Respiratory Failure, run by King Abdullah International Medical Research Center at 1 site in Saudi Arabia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 9 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Saudi Arabia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
28-day all-cause mortality (time frame: 28 days from randomization). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04477668, which also lists 5 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Sep 2022.