Safety and Efficacy of Hyperbaric Oxygen for ARDS in Patients With COVID-19 (COVID-19-HBO)

Karolinska Institute

Status and phase: Terminated; Phase 3; Phase 2

Conditions: Sars-CoV2; COVID-19; SARS (Severe Acute Respiratory Syndrome); Cytokine Storm; ARDS, Human; Acute Respiratory Failure

Treatments: Drug: Hyperbaric oxygen

Study type: Interventional

Funder types: Other; Industry

Identifiers

NCT04327505

K-1199/2020 (Registry Identifier)

2020-001349-37 (EudraCT Number)

COVID-19-HBO

Details and patient eligibility

About

COVID-19 may cause severe pneumonitis that require ventilatory support in some patients, the ICU mortality is as high as 62%. Hospitals do not have enough ICU beds to handle the demand and to date there is no effective cure.

We explore a treatment administered in a randomized clinical trial that could prevent ICU admission and reduce mortality.

The overall hypothesis to be evaluated is that HBO reduce mortality, increase hypoxia tolerance and prevent organ failure in patients with COVID19 pneumonitis by attenuating the inflammatory response.

Full description

Main objective: To evaluate if HBO reduce the number of ICU admissions compared to Best practice for COVID-19

Secondary objectives:

Main secondary objectives:

To evaluate if HBO:

• reduces mortality in severe cases of COVID-19.
• reduces morbidity associated with COVID-19.
• reduce the load on ICU resources in COVID-19.
• mitigate the inflammatory reaction in COVID-19.

Other secondary objectives (in selection):

To evaluate if HBO is safe for SARS-CoV-2 positive patients and staff.

Study design: Randomized, controlled, phase II, open label, multicentre

Study population: Adult patients with SARS-CoV-2 infection, with at least two risk factor for increased mortality, likely to develop ARDS criteria and need intubation within 7 days of admission to hospital.

Number of subjects: 200 (20+180)

Investigational product: Hyperbaric oxygen (HBO) compared with best practice treatment HBO: HBO 1.6-2.4 ATA for 30-60 min, maximum 5 treatments first 7 days Control: Best practice treatment for COVID-19

Enrollment: 34 patients

Sex: All

Ages: 18 to 90 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Aged 18-90 years

2. PaO2/FiO2 (PFI) below 200 mmHg (26.7 kPa)

3. Suspected or verified SARS-CoV-2 infection

4. At least two risk factors for increased morbidity/mortality

   • Age above 50 years
   • Hypertension
   • Cardiovascular disease
   • Diabetes or pre-diabetes
   • Active or cured cancer
   • Asthma/COPD
   • Smoking
   • D-Dimer > 1.0 mg/L
   • Auto-immune disease

5. Documented informed consent according to ICH-GCP and national regulations

Exclusion criteria

1. ARDS/pneumonia caused by other viral infections (positive for other virus)
2. ARDS/pneumonia caused by other non-viral infections or trauma
3. Known pregnancy or positive pregnancy test in women of childbearing age
4. Patients with previous lung fibrosis more than 10%
5. CT- or Spirometry-verified severe COPD with Emphysema
6. Contraindication for HBO according to local guidelines
7. Not likely to need ICU admission < 7 days of screening (Subjective criteria that may exclude any patients that fulfil the other inclusion criteria but where the treating physician suspect a spontaneous recovery)
8. Mental inability, reluctance or language difficulties that result in difficulty understanding the meaning of study participation
9. Prisoner (Exclusion criteria according to IRB at UCSD)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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34 participants in 2 patient groups

Hyperbaric oxygen

Experimental group

Description:

Hyperbaric oxygen 1,6-2.4 Bar for 30-60 minutes (compression/decompression time, according to local routines) in addition to best practice

Treatment:

Drug: Hyperbaric oxygen

Control

No Intervention group

Description:

Best practice