Serum IL-6 and Soluble IL-6 Receptor in Severe COVID-19 Pneumonia Treated With Tocilizumab (UHID-COVID19)
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ClinicalTrials.gov Identifier: NCT04359667 |
Recruitment Status : Unknown
Verified June 2020 by University Hospital for Infectious Diseases, Croatia.
Recruitment status was: Recruiting
First Posted : April 24, 2020
Last Update Posted : November 12, 2020
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Condition or disease | Intervention/treatment |
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COVID-19 Severe Pneumonia | Drug: Tocilizumab 20 MG/ML Intravenous Solution [ACTEMRA] |
Patients must be at least 18 years of age with severe COVID-19 pneumonia (and/or ARDS) confirmed per World Health Organization (WHO) criteria, and evidence of pulmonary infiltration (by chest X-ray and/or CT scan), including a virological confirmation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection by positive polymerase chain reaction (PCR) of any specimen; e.g., respiratory, blood, urine, stool, other bodily fluid.
At the time of enrollment, patients have to fulfill criteria of the local recommendations for the treatment with tocilizumab (TCZ): hypoxemia (defined as arterial oxygen partial pressure/fraction of inspired oxygen (PaO2/FiO2) ratio ≤300 mmHg and/or peripheral capillary oxygen saturation (SpO2) ≤93%) regardless of the oxygenation method including low-flow oxygen administration on nasal cannula or mask with oxygen flow rate of > 12 liters per minute, high-flow oxygen through nasal cannula, noninvasive ventilation (NIV) whatever the modalities of ventilation, invasive ventilation through tracheal intubation or tracheostomy, and extracorporeal oxygenation, despite being on standard of care (SOC), which may include anti-viral treatment, low dose steroids, antimalarials and supportive treatment and care.
Patients in whom, in the opinion of the treating physician, progression to death is imminent and inevitable within the next 24 hours, will be excluded from the study. Patients with active tuberculosis (TB) or suspected active bacterial, fungal, viral, or other infection (besides COVID-19) will be excluded from the study.
Patients will receive one infusion of TCZ 8 mg/kg i.v., with a maximum dose of 800 mg, and SOC treatment according to local guidelines (hydroxychloroquine or/and lopinavir/ritonavir or/and remdesivir).
If the clinical signs or symptoms worsen or do not improve (reflected by sustained fever or at least a one-category worsening on the 7-category ordinal scale of clinical status), one additional infusion of blinded treatment of TCZ or placebo may be given, after more than 12 hours per local protocol.
The study assessments to be conducted include the following: physical examination, vital signs, oxygen saturation, assessment of consciousness, presence and absence of respiratory support, adverse events, concomitant therapies, clinical laboratory tests, and nasopharyngeal swabs.
Study Type : | Observational |
Estimated Enrollment : | 30 participants |
Observational Model: | Case-Only |
Time Perspective: | Prospective |
Official Title: | Prognostic Value of Serum Interleukin-6 (IL-6) and Soluble Interleukin-6 Receptor (sIL-6R) in Severe Coronavirus Disease (COVID-19) Pneumonia Treated With Tocilizumab - a Prospective Single Center Study (UHID-COVID19) |
Actual Study Start Date : | June 16, 2020 |
Estimated Primary Completion Date : | April 16, 2021 |
Estimated Study Completion Date : | May 15, 2021 |

Group/Cohort | Intervention/treatment |
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tocilizumab
one infusion of TCZ 8 mg/kg i.v., with a maximum dose of 800 mg, and SOC treatment according to local guidelines (hydroxychloroquine or/and lopinavir/ritonavir or/and remdesivir).
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Drug: Tocilizumab 20 MG/ML Intravenous Solution [ACTEMRA]
1 - 8 mg per kg of body weight once, maximal 800 mg per dose (can be repeated once more after 12 hours, per clinician's assessment)
Other Name: RoActemra, Anatomical Therapeutic Chemical (ATC) Code L04AC07 |
- serum interleukin-6 and soluble interleukin-6 receptor as biomarkers of clinical outcomes in patients with severe coronavirus disease (COVID-19) pneumonia treated with tocilizumab [ Time Frame: baseline ]to evaluate the role of laboratory markers as predictors of survival in severe COVID-19 pneumonia patients treated with tocilizumab
- serum interleukin-6 and soluble interleukin-6 receptor as biomarkers of clinical outcomes in patients with severe coronavirus disease (COVID-19) pneumonia treated with tocilizumab [ Time Frame: 24 hours post treatment ]to evaluate the role of laboratory markers as predictors of survival in severe COVID-19 pneumonia patients treated with tocilizumab
- serum interleukin-6 and soluble interleukin-6 receptor as biomarkers of clinical outcomes in patients with severe coronavirus disease (COVID-19) pneumonia treated with tocilizumab [ Time Frame: 48 hours post treatment ]to evaluate the role of laboratory markers as predictors of survival in severe COVID-19 pneumonia patients treated with tocilizumab
- serum interleukin-6 and soluble interleukin-6 receptor as biomarkers of clinical outcomes in patients with severe coronavirus disease (COVID-19) pneumonia treated with tocilizumab [ Time Frame: on Day 7 ]to evaluate the role of laboratory markers as predictors of survival in severe COVID-19 pneumonia patients treated with tocilizumab
- serum interleukin-6 and soluble interleukin-6 receptor as biomarkers of clinical outcomes in patients with severe coronavirus disease (COVID-19) pneumonia treated with tocilizumab [ Time Frame: on Day 28 ]to evaluate the role of laboratory markers as predictors of survival in severe COVID-19 pneumonia patients treated with tocilizumab

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Probability Sample |
Inclusion Criteria:
- Signed Informed Consent Form by any patient capable of giving consent, or, when the patient is not capable of giving consent, by his or her legal/authorized representative
- Age ≥18years at time of signing Informed Consent Form
- Ability to comply with the study protocol, in the investigator's judgment
- Hospitalized due to severe COVID-19 pneumonia (and/or ARDS) confirmed per World Health Organization criteria, and evidence of pulmonary infiltration (by chest X-ray and/or CT scan), including a virological confirmation of SARS-CoV-2 infection by positive PCR of any specimen; e.g., respiratory, blood, urine, stool, other bodily fluid
- Hypoxemia (defined as a PaO2/FiO2 ratio ≤300 mmHg and/or SpO2≤93%) regardless of their oxygenation device (including low-flow oxygen administration on nasal cannula or mask with oxygen flow rate of > 12 liters per minute), high-flow oxygen through nasal cannula, noninvasive ventilation (NIV) whatever the modalities of ventilation, invasive ventilation through tracheal intubation or tracheostomy, and extracorporeal oxygenation, despite being on SOC, which may include anti-viral treatment, low dose steroids, and supportive care
Exclusion Criteria:
- Known severe allergic reactions to TCZ or other monoclonal antibodies
- Active TB infection
- Suspected active bacterial, fungal, viral, or other infection (besides COVID-19)
- In the opinion of the investigator, progression to death is imminent and inevitable within the next 24 hours, irrespective of the provision of treatments
- Have received oral anti-rejection or immunomodulatory drugs (including TCZ) within the past 6 months
- alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >10 times the upper limit of the normality detected within 24 hours at screening or at baseline
- absolute neutrophil count (ANC) <1000/µL at screening and baseline
- Platelet count <50,000/µL at screening and baseline
- Pregnant or breastfeeding, or positive pregnancy test in a pre-dose examination
- Any serious medical condition or abnormality of clinical laboratory tests that, in the investigator's judgment, precludes the patient's safe participation in the study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04359667
Contact: Rok Civljak, MD, PhD | ++385914012547 | rcivljak@bfm.hr | |
Contact: Arijana Pavelic, BA | ++385914012584 | apavelic@bfm.hr |
Croatia | |
University Hospital for Infectious Diseases "Dr Fran Mihaljevic" | Recruiting |
Zagreb, Croatia, 10000 | |
Contact: Rok Civljak, MD, PhD ++385914012547 rcivljak@bfm.hr | |
Contact: Arijana Pavelic, BA ++385914012584 apavelic@bfm.hr | |
Principal Investigator: Rok Civljak, MD, PhD | |
Principal Investigator: Miroslav Mayer, MD, PhD |
Principal Investigator: | Rok Civljak, MD, PhD | University Hospital for Infectious Diseases "Dr Fran Mihaljevic" |
Responsible Party: | University Hospital for Infectious Diseases, Croatia |
ClinicalTrials.gov Identifier: | NCT04359667 |
Other Study ID Numbers: |
UHID-04 |
First Posted: | April 24, 2020 Key Record Dates |
Last Update Posted: | November 12, 2020 |
Last Verified: | June 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
COVID-19 severe pneumonia Interleukin-6 tocilizumab |
COVID-19 Pneumonia Respiratory Tract Infections Infections Pneumonia, Viral Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |