Skip to main content

Table 1 General characteristics of the included trials

From: Therapeutic role of corticosteroids in COVID-19: a systematic review of registered clinical trials

Trial identifier

Country

Number of sites

Start date

Expected completion date

Stage of COVID-19

Outcome measures

NCT04425863

Argentina

Single

May 2020

July 2020

Severe acute respiratory syndrome

1. Illness development

2. Reduction of ICU admission

3. Mortality rate

NCT04395105

Argentina

Multi

May 2020

January 2021

Respiratory distress syndrome

Ventilator-free days at 28 days

NCT02735707

Australia, Belgium, Canada, Croatia, Germany, Hungary, Ireland, Netherlands, New Zealand, Portugal, Romania, Spain, UK

Multi

April 2020

December 2023

Pneumonia

1. All-cause mortality

2. Days alive and outside of ICU

NCT04343729

Brazil

Single

April 2020

September 2020

Severe acute respiratory syndrome (SARS)

Mortality rate

NCT04327401

Brazil

Multi

April 2020

August 2020

Moderate/severe ARDS

Ventilator-free days

NCT04377503

Brazil

Not available

May 2020

November 2020

Cytokine release syndrome

Patient clinical status 15 days after randomization

NCT04374474

Canada

Single

January 2021

March 2022

Not defined

1. Change from Baseline Snap and Sniff Threshold Test at 3 months

2. Score from the Snap and Sniff Olfactory Test results

3. Change from baseline Smell Identification Test (SIT) at 3 months

4. Score from the Smell Identification test results.

5. Change from Baseline Snap and Sniff Threshold Test at 6 months

6. Score from the Snap and Sniff Olfactory Test results

7. Change from baseline Smell Identification Test (SIT) at 6 months

NCT04263402

China

Not available

February 2020

July 2020

Severe pneumonia

1. Rate of disease remission

2. Rate and time of entering the critical stage

NCT04244591

China

Completed

January 2020

April 2020

Severe acute respiratory failure

Murray lung injury score

NCT04273321

China

Completed

February 2020

April 2020

Pneumonia

The incidence of treatment failure in 14 days

ChiCTR2000029386

China

Single

January 2020

January 2021

Pneumonia

SOFA score

ChiCTR2000029656

China

Single

February 2020

April 2020

Pneumonia

ECG, chest imaging, complications, vital signs, and NEWS2 score

ChiCTR2000030481

China

Multi

January 2020

April 2020

Pneumonia

The time of duration of COVID-19 nucleic acid RT-PCR test results of respiratory specimens (such as throat swabs) or blood specimens change to negative

NCT04348305

Denmark

Multi

April 2020

December 2021

COVID-19 hypoxia

Days alive without life support at day 28

2020-001395-15

Denmark

Multi

April 2020

Not available

Severe hypoxia

1. Days alive without life support (i.e., invasive mechanical ventilation, circulatory support or renal replacement therapy) from randomization to day 28).

NCT04331054

France

Multi

April 2020

July 2020

COVID-19 infection

Time (in days) to clinical improvement within 30 days after randomization

NCT04361474

France

Multi

May 2020

May 2021

Hyposmia

Patient with more than 2 points on the ODORATEST

NCT04359511

France

Not available

June 2020

December 2020

Pneumonia

Clinical improvement defined by the improvement of 2 points on a 7-category ordinal scale, at 14 days

NCT04347980

France

Multi

April 2020

August 2020

Acute respiratory distress syndrome (ARDS)

28-day mortality

NCT04344730

France

Single

April 2020

December 2020

Pneumonia

1. Time-to-death from all causes within the first 60 days after randomization

2. Time to need for mechanical ventilation

NCT04344288

France

Multi

April 2020

November 2020

Pneumonia

Respiratory indication for transfer to intensive care unit evaluated by a SpO2 < 90%

NCT04331470

Iran

Single

April 2020

May 2020

Not defined

Clear chest CT scan and PCR test

IRCT20200204046369N1

Iran

Multi

Not available

Not available

Not defined

PAO2/FiO2 through ABG method

IRCT20151227025726N17

Iran

Single

Not available

Not available

ARDS

1. Daily need for invasive mechanical ventilation

2. Death at the end of the study

IRCT20120225009124N4

Iran

Single

Not available

Not available

Not defined

Improvement in SpO2 measured by pulse oximeter

IRCT20200406046963N1

Iran

Single

Not available

Not available

ARDS( acute respiratory distress syndrome)

1. Mortality rate after 60 days

2. Blood O2 saturation measurement

3. Need for oxygen therapy

IRCT20200404046947N1

Iran

Multi

Not available

Not available

Not defined

1. Findings on the CT scan

2. Mortality rate

3. O2 saturation levels

4. Need an oxygen therapy at day 3 and discharge time

IRCT20081027001411N3

Iran

Multi

Not available

Not available

ARDS

1. Findings on the CT scan

2. Mortality rate

3. O2 saturation levels

4. Need an oxygen therapy at day 3 and discharge time

IRCT20120215009014N354

Iran

Single

Not available

Not available

Mild-to-moderate acute respiratory distress syndrome

1. Need to mechanical ventilation

2. The patient’s clinical status

3. Mortality rate

IRCT20080901001165N52

Iran

Single

Not available

Not available

Moderate to severe pneumonia

Need to receive ICU service

NCT04323592

Italy

Single

March 2020

May 2020

Acute respiratory distress syndrome

1. Admission to ICU and need for Invasive mechanical ventilation

2. In-hospital death within 28 days

3. Endotracheal intubation

KCT0005105

Korea

Multi

April 2020

September 2020

Mild

Rate of SARS-CoV-2 eradication at day 14 from study enrollment

IRCT20200318046812N2

Iran

Multi

Not available

Not available

Not defined

Admission to intensive care unit

NCT04345445

Malaysia

Single

April 2020

October 2020

Pneumonia

1. The proportion of patients requiring mechanical ventilation

2. Mean days in ventilation

NCT04360876

Not available

Single

May 2020

December 2020

ARDS

Ventilator-free days (VFD) at day 28

NCT04366115

Not available

Not available

June 2020

June 2023

Not defined

1. Dose-limiting toxicities

2. 28-day all-cause mortality for phases 1 and 2

NCT04435795

Not available

Not available

June 2020

March 2021

Not defined

Improvement in dyspnea at day 7

NCT04355247

Puerto Rico

Multi

April 2020

April 2021

High-risk COVID-19

1. Clinical complete response criteria

2. Need for ventilatory support

3. O2 Saturation of >/= 93% by day 14 of therapy

4. Mortality at day 28

5. Findings on CT chest on day 28

NCT04438980

Spain

Multi

May 2020

February 2021

Pneumonia

1. Proportion of patients developing treatment failure

2. Need for mechanical ventilation

3. Decrease in SpO2 < 90% (in ambient air) or PaO2 < 60 mmHg (in ambient air) or PaO2FiO2 < 300 mmHg

NCT04394182

Spain

Multi

April 2020

April 2021

Pneumonia

Oxygen saturation at day 2

NCT04380818

Spain

Multi

June 2020

July 2021

Pneumonia

Efficacy of low-dose pulmonary irradiation assessed by change in PAFiO2 by 20%

NCT04355637

Spain

Multi

April 2020

October 2020

Pneumonia

Proportion of patients developing treatment failure

NCT04341038

Spain

Single

April 2020

June 2020

Severe lung injury secondary to COVID-19

Time to reach clinical stability

NCT04329650

Spain

Multi

April 2020

May 2020

Pneumonia

Proportion of patients requiring ICU admission at any time within the study period

NCT04325061

Spain

Multi

April 2020

October 2020

ARDS

60-day mortality

2020-001827-15

Spain

Single

Not available

Not available

Pneumonia

1. Proportion of patients with treatment failure up to 14 days after randomization

2. Mortality rate

3. ICU admission

4. Number of patients requiring mechanical ventilation

5. Clinical deterioration/worsening, defined as decrease in SpO2 below 90% or PaO2 below 60 mmHg in ambient air + radiological progression.

2020-001622-64

Spain

Single

April 2020

Not available

Not defined

1. Measurement of O2 saturation and/or blood gas, findings on chest x-ray, CBC, including inflammatory markers and blood biometrics, and ECG

2. 30-day ICU admission and hospital stay

3. Outbreaks of steroid-related psychosis

2020-001934-37

Spain

Multi

May 2020

Not available

Not defined

1. Mortality rate

2. Number of days of ICU stay

3. Number of patients requiring non-invasive ventilation (NIV)

2020-001413-20

Spain

Single

April 2020

Not available

Pneumonia

Proportion of patients requiring ICU admission at any time within the study period

2020-001445-39

Spain

Single

March 2020

Not available

Pneumonia

Time (days) to clinical stability after initiation of trial treatment for severe pneumonia secondary to COVID-19 and elevated inflammatory parameters

2020-001307-16

Spain

Single

April 2020

Not available

ARDS

Death from any cause in the first 28 days after randomization

NCT04381364

Sweden

Multi

May 2020

December 2020

Pneumonia

Duration of supplemental oxygen therapy

NCT04416399

UK

Not available

June 2020

December 2020

Early infection

Emergency department visit related to COVID-19

NCT04381936

UK

Multi

March 2020

June 2021

SARS

All-cause mortality

NCT04411667

USA

Multi

April 2020

November 2020

Not defined

Number of subjects requiring mechanical ventilation

NCT04377711

USA

Multi

June 2020

December 2020

Symptomatic COVID-19 infection

Percentage hospital admission or death by day 30

NCT04349410

USA

Not available

April 2020

November 2020

Pneumonia

1. Improvement in FMTVDM measurement with nuclear imaging

2. Ventilator status

3. Extubation status

4. Survival status in 30 days

NCT04193878

USA

Multi

June 2020

June 2024

Pneumonia, acute respiratory failure

Number of patients with acute respiratory failure (ARF) within 10 days of randomization

NCT03852537

USA

Single

December 2019

July 2022

Pneumonia

1. Feasibility of the timely initiation of corticosteroids and implementation of biomarker-titrated corticosteroid dosing

2. Percentage of eligible patients adhered to the timely initiation within 30 days

NCT04374071

USA

Completed

March 2020

April 2020

Pneumonia

1. Number of patients transferred to ICU is each of the group

2. Number of patients requiring mechanical ventilation

3. Mortality rate