- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04640194
A Study to Test Whether Different Doses of Alteplase Help People With Severe Breathing Problems Because of COVID-19 (TRISTARDS)
The TRISTARDS Trial - ThRombolysIS Therapy for ARDS A Phase IIb/III Operationally Seamless, Open-label, Randomised, Sequential, Parallel-group Adaptive Study to Evaluate the Efficacy and Safety of Daily Intravenous Alteplase Treatment Given up to 5 Days on Top of Standard of Care (SOC) Compared With SOC Alone, in Patients With Acute Respiratory Distress Syndrome (ARDS) Triggered by COVID-19
This is a study in adults with severe breathing problems because of COVID-19. People who are in hospital on breathing support can participate in the study. The purpose of the study is to find out whether a medicine called alteplase helps people get better faster.
The study has 2 parts. In the first part, participants are put into 3 groups by chance. Participants in 2 of the groups get 2 different doses of alteplase, in addition to standard treatment.
Participants in the third group get standard treatment. In the second part of the study, participants are put into 2 groups by chance. One group gets alteplase and standard treatment. The other group gets only standard treatment. Alteplase is given as an infusion into a vein. In both study parts, treatments are given for 5 days. Doctors monitor patients and check whether their breathing problems improve. They compare results between the groups after 1 month.
Participants are in the study for 3 months.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 3
Contacts and Locations
Study Locations
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Klagenfurt, Austria, 9020
- LKH Klagenfurt am Woerthersee
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Vienna, Austria, 1100
- Wiener Gesundheitsverbund Klinik Favoriten
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Bruxelles, Belgium, 1070
- ULB Hôpital Erasme
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Liège, Belgium, 4000
- Centre Hospitalier Universitaire de Liege
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Ottignies, Belgium, 1340
- Ottignies - HOSP St-Pierre
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Porto Alegre, Brazil, 90470-340
- Hospital Mae de Deus
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Le Kremlin Bicêtre cedex, France, 94275
- HOP Bicêtre
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Lille, France, 59037
- HOP Roger Salengro
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Melun, France, 77000
- HOP Melun-Sénart
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Nantes, France, 44093
- HOP Hôtel-Dieu
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Paris, France, 75014
- HOP Cochin
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Paris cedex 15, France, 75908
- HOP Européen G. Pompidou
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Reims, France, 51092
- HOP Robert Debré
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Strasbourg cedex, France, 67091
- HOP Civil
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Hannover, Germany, 30625
- Medizinische Hochschule Hannover
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Heidelberg, Germany, 69120
- Universitätsklinikum Heidelberg
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Leipzig, Germany, 04109
- Universitatsklinikum Leipzig
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Mannheim, Germany, 68167
- Universitätsklinikum Mannheim GmbH
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München, Germany, 81377
- Klinikum der Universität München - Campus Großhadern
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Wuppertal, Germany, 42283
- Petrus-Krankenhaus
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Visakhapatnam, India, 530002
- King George Hospital
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Milano, Italy, 20132
- IRCCS San Raffaele
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Rozzano (MI), Italy, 20089
- Istituto Clinico Humanitas
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Miri, Malaysia, 98000
- Hospital Miri
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Aguascalientes, Mexico, 20230
- Hospital Cardiologica Aguascalientes
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Apeldoorn, Netherlands, 7334 DZ
- Gelre Ziekenhuizen Apeldoorn
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Arnhem, Netherlands, 6815 AD
- Rijnstate Hospital
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Nijmegen, Netherlands, 6532 SZ
- Canisius-Wilhelmina Ziekenhuis
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Moscow, Russian Federation, 108814
- City Clinical Hospital # 40 of the Moscow Health Department
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Moscow, Russian Federation, 119048
- Moscow 1st State Med.Univ.n.a.I.M.Sechenov
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Ryazan, Russian Federation, 390026
- City Clinical Emergency Hospital
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Saint Petersburg, Russian Federation, 187342
- State Budget Institution of Healthcare Leningradskaya region "Kirovskaya Interdistrict Hospital"
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Barcelona, Spain, 08003
- Hospital del Mar
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Barcelona, Spain, 08035
- Hospital Vall d'Hebron
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Cádiz, Spain, 11009
- Hospital Puerta del Mar
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Sabadell, Spain, 08208
- CS Parc Taulí
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Izmir, Turkey, 35110
- Izmir Dr. Suat Seren Gogus Hastaliklari ve Cerrahisi Egitim ve Arastirma Hastanesi
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Age ≥ 18 years (or above legal age, e.g. UK ≥16 years)
ARDS with PaO2*/FiO2 ratio >100 and ≤300, either on non-invasive ventilator support, OR on mechanical ventilation (<48 hours since intubation),
- with bilateral opacities in chest X-ray or CT scan (not fully explained by effusions, lobar/lung collapse, or nodules)
- with respiratory failure (not fully explained by cardiac failure/fluid overload) (*or estimation of PaO2/FiO2 from pulse oximetry (SpO2/FiO2))
- SARS-CoV-2 positive (laboratory-confirmed reverse transcription polymerase chain reaction (RT PCR) test)
- Fibrinogen level ≥ lower limit of normal (according to local laboratory)
- D-Dimer ≥ upper limit of normal (ULN) according to local laboratory
- Signed and dated written informed consent in accordance with ICH Good Clinical Practice (GCP) and local legislation prior to admission to the Trial
Exclusion Criteria:
- Massive confirmed pulmonary embolism (PE) with haemodynamic instability at trial entry, or any (suspected or confirmed) PE that is expected to require therapeutic dosages of anticoagulants during the treatment period
- Indication for therapeutic dosages of anticoagulants at trial entry
- Patients on mechanical ventilation for longer than 48 hours
- Chronic pulmonary disease i.e. with known forced expiratory volume in 1 second (FEV1) <50%, requiring home oxygen, or oral steroid therapy or hospitalisation for exacerbation within 12 months, or significant chronic pulmonary disease in the Investigator's opinion, or primary pulmonary arterial hypertension
- Has a Do-Not-Intubate (DNI) or Do-Not-Resuscitate (DNR) order
- In the opinion of the investigator not expected to survive for > 48 hours after admission
- Planned interventions during the first 5 days after randomisation, such as surgery, insertion of central catheter or arterial line, drains, etc.
- Patients with known hypersensitivity to the active substance alteplase, gentamicin (a trace residue from the manufacturing process) or to any of the excipients
- Significant bleeding disorder at present or within the past 3 months, known haemorrhagic diathesis
- Patients receiving effective oral anticoagulant treatment, e.g. vitamin K antagonists with International normalised ratio (INR) >1.3, or any direct oral anticoagulant within the past 48 hours Further exclusion criteria apply.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Part 1: Alteplase low dose
0.3 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.02 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5), plus Standard of Care (SOC).
One optional additional infusion of 0.3 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
Part 1 subjects were randomized equally (1:1:1) across the three Part 1 arms.
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
0.3 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.02 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5).
One optional additional infusion of 0.3 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
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Experimental: Part 1: Alteplase high dose
0.6 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.04 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5), plus Standard of Care (SOC).
One optional additional infusion of 0.6 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
Part 1 subjects were randomized equally (1:1:1) across the three Part 1 arms.
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
0.6 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.04 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5).
One optional additional infusion of 0.6 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
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Other: Part 1: Standard of Care
Standard of Care included best possible treatment regimen established locally and was in line with current guidelines for Acute respiratory distress syndrome treatment.
Part 1 subjects were randomized equally (1:1:1) across the three Part 1 arms.
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
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Experimental: Part 2: Alteplase high dose - non-invasive mechanical ventilation (NIV) patients
0.6 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.04 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5), plus Standard of Care (SOC).
One optional additional infusion of 0.6 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
Non-invasive mechanical ventilation (NIV) patients are those with a baseline World Health Organization (WHO) Clinical Progression Scale value of 6.
Part 2 subjects were randomized 2 (Alteplase) to 1 (SOC).
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
0.6 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.04 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5).
One optional additional infusion of 0.6 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
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Other: Part 2: Standard of Care - non-invasive mechanical ventilation (NIV) patients
Standard of Care included best possible treatment regimen established locally and was in line with current guidelines for Acute respiratory distress syndrome treatment.
Non-invasive mechanical ventilation (NIV) patients are those with a baseline World Health Organization (WHO) Clinical Progression Scale value of 6.
Part 2 subjects were randomized 2 (Alteplase) to 1 (SOC).
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
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Experimental: Part 2: Alteplase high dose - invasive mechanical ventilation (IMV) patients
0.6 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.04 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5), plus Standard of Care (SOC).
One optional additional infusion of 0.6 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
Invasive mechanical ventilation (IMV) patients are those with a baseline World Health Organization (WHO) Clinical Progression Scale value of 7, 8 or 9. Part 2 subjects were randomized 2 (Alteplase) to 1 (SOC).
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
0.6 milligram/kilogram (mg/kg) over 2 hours (Day 1) immediately followed by daily infusion of 0.04 mg/kg/hour over 12 hours (starting on Day 1 and up to Day 5).
One optional additional infusion of 0.6 mg/kg over 2 hours could be given once on Days 2 to 5 in case of clinical worsening, per investigator judgement.
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Other: Part 2: Standard of Care - invasive mechanical ventilation (IMV) patients
Standard of Care included best possible treatment regimen established locally and was in line with current guidelines for Acute respiratory distress syndrome treatment.
Invasive mechanical ventilation (IMV) patients are those with a baseline World Health Organization (WHO) Clinical Progression Scale value of 7, 8 or 9. Part 2 subjects were randomized 2 (Alteplase) to 1 (SOC).
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Standard of Care (SOC) includes any supportive measures applied in hospital, specifically on an intensive care unit (ICU), such as for example the use of non-invasive or invasive ventilation, oxygen masks, haemodynamic support, if needed, sedation, as well as medical therapies commonly used in patients suffering from acute respiratory distress syndrome (ARDS) or its complications.
SOC should include best possible treatment regimen established locally and should be in line with current guidelines for ARDS treatment.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Time to Clinical Improvement or Hospital Discharge up to Day 28
Time Frame: Up to 28 days.
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From randomisation to either an improvement of 2 points on the 11-point World Health Organization (WHO) Clinical Progression Scale (from 0 to 10, a low score indicates a better outcome) or discharge from the hospital, whichever comes first. Full scale: 0=Uninfected; no viral RNA detected
Patients that have not met the endpoint were censored at Day 28 if they died prior to Day 28. Patients receiving bail out therapy without having first met the endpoint, were censored on the day of bail-out (hypothetical estimand). |
Up to 28 days.
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Number of Subjects With Major Bleeding Events (MBE) at Day 6
Time Frame: From start of treatment (Alteplase) or randomisation (SOC) (day 1) till Day 6, up to 6 days.
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Number of subjects with major bleeding events (MBE). Major bleeding events (MBE) according to International Society on Thrombosis and Haemostasis [ISTH] definition until Day 6. Definition of a major bleed: •Symptomatic bleeding in a critical area or organ, such as intracranial, intraspinal, intraocular, retroperitoneal, intra-articular or pericardial, or intramuscular with compartment syndrome, and/or •Bleeding associated with a reduction in hemoglobin of at least 2 gram/deciliter (1.24 millimole/Liter), or leading to transfusion of two or more units of blood or packed cells and/or •Fatal bleed |
From start of treatment (Alteplase) or randomisation (SOC) (day 1) till Day 6, up to 6 days.
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All Cause Mortality at Day 28
Time Frame: Up to 28 days.
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All cause mortality at Day 28. If it is unknown whether the patient was dead at end of Day 28, then it will be assumed that the patient did not die up to Day 28, regardless of the reason. This unfavorable endpoint is met if:
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Up to 28 days.
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Number of Ventilator-free Days at Day 28
Time Frame: Up to 28 days.
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Number of ventilator-free days (VFDs) from start of treatment to Day 28.
'Ventilator' is defined as 'assisted breathing' but it refers to mechanical invasive ventilation.
The number of VFDs starts from when the patient has a 'lasting' value on the WHO clinical progression scale of ≤ 6, and ends on Day 28.
A lasting value of ≤ 6 means that the value cannot exceed 6 at a later timepoint.
If the patient is liberated from the ventilator on Day x, then the number of VFDs is 28-x.
If a patient has withdrawn consent prior to day 28 then he will have a missing value for VFD.
In any case, if the status of the patient at Day 28 is death, as determined from the vital status page then the VFD=0.
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Up to 28 days.
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Number of Subjects With Improvement of Sequential (Sepsis-related) Organ Failure Assessment (SOFA) Score by ≥2 Points at Day 6
Time Frame: Baseline (Day 0) and Day 6 of treatment
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Number of subjects with improvement of Sequential (sepsis-related) Organ Failure Assessment (SOFA) score by ≥2 points from baseline to end of Day 6.
The Sequential Organ Failure Assessment (SOFA) scores six variables: respiratory, coagulation, liver, Cardiovascular, central nervous system and renal.
Each variable is score from 0 (best outcome) to 4 (worst outcome) with a total score calculated as the sum of all six variables ranging from 0 (best outcome) to 24 (worst outcome).
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Baseline (Day 0) and Day 6 of treatment
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Daily Average PaO2/FiO2 Ratio Change From Baseline to Day 6
Time Frame: Up to 6 days.
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Daily average PaO2/FiO2 ratio (or inferred PaO2/FiO2 ratio from SpO2) change from baseline to Day 6.
This assessment was measured approximately 3-times daily.
All available values on each of these days, regardless of the position of the patient when being measured, were averaged in order to determine the daily average PaO2/FiO2 ratio for that patient.
The higher the value the better the health status of the patient.
If the patient was still in hospital during day 6 then the day 6 daily average value was used, if available.
If the patient was discharged from hospital prior to day 6 then the daily average at the time of hospital discharge was used as a surrogate for day 6, if available.
If the patient died prior to day 6 then there was no imputation but the death handled as failure in the determination of the difference in medians and 95% CI.
Based upon this, the change from baseline for each patient was calculated.
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Up to 6 days.
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Number of Oxygen-free Days up to Day 28
Time Frame: Up to 28 days.
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Number of oxygen-free days (OFD) up to Day 28.
Oxygen-free is defined as free from assistance from oxygen support.
The number of oxygen-free days starts from when the patient has a 'lasting' value on the WHO clinical progression scale of ≤ 4 and ends on Day 28.
A lasting value of ≤ 4 means that the value cannot exceed 4 at a later timepoint.
If the patient is liberated from oxygen on Day x, then the number of OFDs is 28-x.
If a patient has withdrawn consent prior to day 28 then he will have a missing value for OFD.
In any case, if the status of the patient at Day 28 is death, as determined from the vital status page then the OFD=0.
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Up to 28 days.
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Length of Hospital Stay up to Day 28
Time Frame: Up to 28 days.
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Length of hospital stay up to day 28 was determined based upon the first hospital discharge date, or discharge to another care facility.
If the patient died within the first 28 day period, then length of hospital stay was 28.
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Up to 28 days.
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Worst PaO2/FiO2 Ratio Change From Baseline to Day 6
Time Frame: Up to 7 days.
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Worst PaO2/FiO2 ratio (or inferred PaO2/FiO2 ratio from SpO2) change from baseline to day 6. This assessment was planned to be measured on each of days 0 to 6. but only whilst the patients was still in hospital. The worst (lowest) daily measurement will be used and the higher the value the better the health status of the patient.
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Up to 7 days.
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Number of Subjects With Treatment Failure at Day 28
Time Frame: Up to 28 days.
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Treatment failure defined as all cause mortality or mechanical ventilation at Day 28.
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Up to 28 days.
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Collaborators and Investigators
Sponsor
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Respiratory Tract Diseases
- Respiration Disorders
- Lung Diseases
- Disease
- Infant, Newborn, Diseases
- Lung Injury
- Infant, Premature, Diseases
- Syndrome
- Respiratory Distress Syndrome
- Respiratory Distress Syndrome, Newborn
- Acute Lung Injury
- Molecular Mechanisms of Pharmacological Action
- Fibrinolytic Agents
- Fibrin Modulating Agents
- Tissue Plasminogen Activator
Other Study ID Numbers
- 0135-0347
- 2020-002913-16 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
After the study is completed and the primary manuscript is accepted for publishing, researchers can use this following link https://www.mystudywindow.com/msw/datasharing to request access to the clinical study documents regarding this study, and upon a signed "Document Sharing Agreement".
Also, Researchers can use the following link https://www.mystudywindow.com/msw/datasharing to find information in order to request access to the clinical study data, for this and other listed studies, after the submission of a research proposal and according to the terms outlined in the website.
The data shared are the raw clinical study data sets.
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- CSR
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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