Effect of Two Different Doses of Dexamethasone in Patients With ARDS and COVID-19

NCT ID: NCT04663555

Last Updated: 2023-03-22

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE4
• Total Enrollment: 235 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2021-02-02
• Study Completion Date: 2023-02-23

Brief Summary

REMED is a prospective, phase II, open-label, randomised controlled trial testing superiority of dexamethasone 20 mg vs 6 mg. The trial aims to be pragmatic, i.e. designed to evaluate the effectiveness of the intervention in conditions that are close to real-life routine clinical practice. The study is multi-centre and will be conducted in the intensive care units (ICUs) of ten university hospitals in the Czech Republic. This is an open-label trial in which the participants and the study staff will be aware of the allocated intervention. Blinded pre-planned statistical analysis will be performed.

Detailed Description

Since December 2019, Covid-19 virus has infected millions of people worldwide. A significant number of patients develop hyperinflammatory state affecting lungs, which may lead to the need of oxygen therapy. In most severe cases, acute respiratory distress syndrome (ARDS) develops and high flow oxygen therapy or invasive mechanical ventilation is necessary (Wu et al., 2020). Therapeutic options in Covid-19 associated ARDS patients remain limited and mortality is still excessive. Systemic corticosteroids have potential to limit hyperinflammatory response by modulating immune system. This effect is mediated mainly by binding to glucocorticosteroid receptor α (GRα)(Meduri et al., 2020). Their effectiveness was proved in heterogeneous ARDS patients recently (Villar et al., 2020). In patients with Covid-19 pneumonia in need for oxygen therapy or mechanical ventilation, dexamethasone 6 mg per day is currently recommended. This therapy is mandated by the results of RECOVERY trial (Horby et al., 2020). After this trial was published, three randomised trials comparing hydrocortisone (Angus et al., 2020; Dequin et al., 2020) or dexamethasone (Tomazini et al., 2020) against placebo were stopped prematurely. All these studies were included in the subsequent IPD metaanalysis (Sterne et al., 2020). However, dose of 6 mg of dexamethasone is currently being reappraised. The aforementioned study in non Covid-19 ARDS patients (Villar et al., 2020) used 20 mg of dexamethasone per day, which is roughly equivalent to the methylprednisolone regimen (1mg/kg/day) studied in early severe ARDS patients (Meduri et al., 2007). Only these moderate doses (80-100 mg of methylprednisolone, equivalent to 15-19 mg of dexamethasone) have full potential to modulate immune response by saturating GRα receptors (Meduri et al., 2020). Importantly, prematurely stopped CoDEX trial (Tomazini et al., 2020) comparing dexamethasone against placebo in Covid-ARDS patients, used initial daily dose of 20 mg of dexamethasone versus placebo.

In the light of these facts, 6 mg of dexamethasone given to COVID-19 patients with different severity of illness (WHO classification group 5-10) may miss important therapeutic potential or may prevent a potential deleterious effects of a full dose therapeutic corticosteroid. Authors hypothesize that the patients with moderate to severe ARDS undergoing mechanical ventilation may benefit from higher doses of dexamethasone (Villar et al., 2020; Tomazini et al., 2020; Meduri et al., 2007).

The primary objective of this study is to test the hypothesis that administration of dexamethasone 20 mg is superior over 6 mg in adult patients with moderate or severe ARDS due to confirmed COVID-19.

Primary endpoint: Number of ventilator-free days (VFDs) at 28 days after randomisation, defined as being alive and free from mechanical ventilation (more than 48 hours).

Secondary endpoints:

1. Mortality from any cause at 60 days after randomization;

2. Dynamics of inflammatory marker (CRP) change from Day 1 to Day 14;

3. WHO Clinical Progression Scale at Day 14 (range 0-10; 0 = no illness, 1-9 = increasing level of care, and 10 = death);

4. Adverse events related to corticosteroids (new infections, new thrombotic complications) until Day 28 or hospital discharge;

5. Independence at 90 days after randomization assessed by Barthel Index The long-term outcomes of this study are to assess long-term consequences on mortality and quality of life at 180 and 360 days through telephone structured interview using Barthel Index.

Conditions

Covid19; ARDS

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

DEX 20 mg

Patients in the intervention group after randomization will receive dexamethasone 20 mg intravenously once daily on day 1-5, followed by dexamethasone 10 mg intravenously once daily on day 6-10.

Group Type: EXPERIMENTAL

Dexamethasone

Intervention Type: DRUG

Patients in the intervention group after randomization will receive dexamethasone 20 mg intravenously once daily on day 1-5, followed by dexamethasone 10 mg intravenously once daily on day 6-10. If successful extubation occurs before day 10, treatment with dexamethasone is withdrawn.

DEX 6 mg

Patients in the control group after randomization will receive dexamethasone 6 mg day 1-10.

Group Type: ACTIVE_COMPARATOR

Dexamethasone

Intervention Type: DRUG

Patients in the intervention group after randomization will receive dexamethasone 20 mg intravenously once daily on day 1-5, followed by dexamethasone 10 mg intravenously once daily on day 6-10. If successful extubation occurs before day 10, treatment with dexamethasone is withdrawn.

Interventions

Dexamethasone

Patients in the intervention group after randomization will receive dexamethasone 20 mg intravenously once daily on day 1-5, followed by dexamethasone 10 mg intravenously once daily on day 6-10. If successful extubation occurs before day 10, treatment with dexamethasone is withdrawn.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

Subjects will be eligible for the trial if they meet all of the following criteria:

1. Adult (≥ 18 years of age) at time of enrolment;

2. Present COVID-19 (infection confirmed by RT-PCR or antigen testing);

3. Intubation/mechanical ventilation or ongoing high-flow nasal cannula (HFNC) oxygen therapy;

4. Moderate or severe ARDS according to Berlin criteria:

• Moderate - PaO2/FiO2 100-200 mmHg;
• Severe - PaO2/FiO2 < 100 mmHg;

5. Admission to ICU in the last 24 hours.

Exclusion Criteria

Subjects will not be eligible for the trial if they meet any of the following criteria:

1. Known allergy/hypersensitivity to dexamethasone or excipients of the investigational medicinal product (e.g. parabens, benzyl alcohol);

2. Fulfilled criteria for ARDS for ≥ 14 days at enrolment;

3. Pregnancy or breastfeeding;

4. Unwillingness to comply with contraception measurements from the enrolment to at least 1 week after the last dose of dexamethasone (sexual abstinence is considered as the adequate contraception method);

5. End-of-life decision or patient is expected to die within next 24 hours;

6. Decision not to intubate or ceilings of treatment in place;

7. Immunosuppression and/or immunosuppressive drugs in medical history:

1. Systemic immunosuppressive drugs or chemotherapy in the past 30 days;

2. Systemic corticosteroids use before hospitalization;

3. Any dose of dexamethasone during the present hospital stay for COVID-19 for more than (≥) last 5 days before enrolment;

4. Systemic corticosteroids during present hospital stay for other conditions than COVID-19 (e.g. septic shock);

8. Present haematological or generalized solid malignancy;

9. Any of contraindications of corticosteroids, e.g.

• intractable hyperglycaemia;
• active gastrointestinal bleeding;
• adrenal gland disorders;
• a presence of superinfection diagnosed with locally established clinical and laboratory criteria without adequate antimicrobial treatment;

10. Cardiac arrest before ICU admission;

11. Participation in another interventional trial in the last 30 days.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Masaryk University

OTHER

Sponsor Role: collaborator

Vascular surgery, University hospital Královské Vinohrady, Prague

OTHER

Sponsor Role: collaborator

General University Hospital, Prague

OTHER

Sponsor Role: collaborator

University Hospital Ostrava

OTHER

Sponsor Role: collaborator

St. Anne's University Hospital Brno

UNKNOWN

Sponsor Role: collaborator

Motol University Hospital

OTHER

Sponsor Role: collaborator

University Hospital Olomouc

OTHER

Sponsor Role: collaborator

University Hospital Plzeň

UNKNOWN

Sponsor Role: collaborator

Tomáš Baťa Regional Hospital

UNKNOWN

Sponsor Role: collaborator

Military University Hospital Praha

UNKNOWN

Sponsor Role: collaborator

Brno University Hospital

OTHER

Sponsor Role: lead

Responsible Party

Jan Malaska

MD. Ph.D. EDIC

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

University Hospital Brno

Brno, , Czechia

Countries

Czechia

References

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Provided Documents

Document Type: Study Protocol

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Other Identifiers

2020-005887-70

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

CZECRIN No. 2020/47

Identifier Type: -

Identifier Source: org_study_id