CORIMUNO-19 - Tocilizumab Trial - TOCI (CORIMUNO-TOCI) (CORIMUNO-TOC)

Cohort Multiple Randomized Controlled Trials Open-label of Immune Modulatory Drugs and Other Treatments in COVID-19 Patients - Tocilizumab Trial - CORIMUNO-19 - TOCI (CORIMUNO-TOCI)

The overall objective of the study is to determine the therapeutic effect and tolerance of Tocizilumab in patients with moderate, severe pneumonia or critical pneumonia associated with Coronavirus disease 2019 (COVID-19). Tocilizumab (TCZ) is an anti-human IL-6 receptor monoclonal antibody that inhibits signal transduction by binding sIL-6R and mIL-6R. The study has a cohort multiple Randomized Controlled Trials (cmRCT) design. Randomization will occur prior to offering Tocilizumab administration to patients enrolled in the COVIMUNO-19 cohort. Tocilizumab will be administered to consenting adult patients hospitalized with CORVID-19 either diagnosed with moderate or severe pneumonia requiring no mechanical ventilation or critical pneumonia requiring mechanical ventilation. Patients who will chose not to receive Tocilizumab will receive standard of cares. Outcomes of Tocilizumab-treated patients will be compared with outcomes of standard of care treated patients as well as outcomes of patients treated with other immune modulators.

Tocilizumab 8mg/kg D1 and if no response (no decrease of oxygen requirement) a second injection at D3.

Tocilizumab 8mg/kg D1 and if no response (no decrease of oxygen requirement) a second injection at D3.

Group 1. Survival without needs of ventilator utilization (including non invasive ventilation and high flow) at day 14. Thus, events considered are needing ventilator utilization (including Non Invasive Ventilation, NIV or high flow), or death. New DNR order (if given after the inclusion of the patient) will be considered as an event at the date of the DNR.

Group 1. Proportion of patients alive without non-invasive ventilation of high low at day 4 (WHO progression scale ≤ 5). A patient with new DNR order at day 4 will be considered as with a score > 5. WHO progression scale: Uninfected; non viral RNA detected: 0 Asymptomatic; viral RNA detected: 1 Symptomatic; Independent: 2 Symptomatic; Assistance needed: 3 Hospitalized; No oxygen therapy: 4 Hospitalized; oxygen by mask or nasal prongs: 5 Hospitalized; oxygen by NIV or High flow: 6 Intubation and Mechanical ventilation, pO2/FIO2>=150 OR SpO2/FIO2>=200: 7 Mechanical ventilation, (pO2/FIO2<150 OR SpO2/FIO2<200) OR vasopressors (norepinephrine >0.3 microg/kg/min): 8 Mechanical ventilation, pO2/FIO2<150 AND vasopressors (norepinephrine >0.3 microg/kg/min), OR Dialysis OR ECMO: 9 Dead: 10

Cumulative incidence of successful tracheal extubation (defined as duration extubation > 48h) at day 14. Group 2.

Group 2. Cumulative incidence of successful tracheal extubation (defined as duration extubation > 48h) at day 14 if patients have been intubated before day 14 ; or removal of NIV or high flow (for > 48h) if they were included under oxygen by NIV or High flow (score 6) and remained without intubation. Death or new DNR order (if given after the inclusion of the patient) will be considered as a competing event.

Group 2 Early end point : proportion of patients with a decrease of WHO score of at least 1 point at day 4. WHO progression scale: Uninfected; non viral RNA detected: 0 Asymptomatic; viral RNA detected: 1 Symptomatic; Independent: 2 Symptomatic; Assistance needed: 3 Hospitalized; No oxygen therapy: 4 Hospitalized; oxygen by mask or nasal prongs: 5 Hospitalized; oxygen by NIV or High flow: 6 Intubation and Mechanical ventilation, pO2/FIO2>=150 OR SpO2/FIO2>=200: 7 Mechanical ventilation, (pO2/FIO2<150 OR SpO2/FIO2<200) OR vasopressors (norepinephrine >0.3 microg/kg/min): 8 Mechanical ventilation, pO2/FIO2<150 AND vasopressors (norepinephrine >0.3 microg/kg/min), OR Dialysis OR ECMO: 9 Dead: 10

WHO progression scale: Uninfected; non viral RNA detected: 0 Asymptomatic; viral RNA detected: 1 Symptomatic; Independent: 2 Symptomatic; Assistance needed: 3 Hospitalized; No oxygen therapy: 4 Hospitalized; oxygen by mask or nasal prongs: 5 Hospitalized; oxygen by NIV or High flow: 6 Intubation and Mechanical ventilation, pO2/FIO2>=150 OR SpO2/FIO2>=200: 7 Mechanical ventilation, (pO2/FIO2<150 OR SpO2/FIO2<200) OR vasopressors (norepinephrine >0.3 microg/kg/min): 8 Mechanical ventilation, pO2/FIO2<150 AND vasopressors (norepinephrine >0.3 microg/kg/min), OR Dialysis OR ECMO: 9 Dead: 10

arterial blood pH of <7.25 with a partial pressure of arterial carbon dioxide [Paco2] of ≥60 mm Hg for >6 hours

Inclusion Criteria: Patients included in the CORIMUNO-19 cohort Patients belonging to one of the 2 following groups: Group 1: Cases meeting all of the following criteria Requiring more than 3L/min of oxygen OMS/WHO progression scale = 5 No NIV or High flow Group 2: Cases meeting all of the following criteria Respiratory failure AND (requiring mechanical ventilation OR NIV OR High flow) WHO progression scale >=6 No do-not-resuscitate order (DNR order) Exclusion Criteria: Patients with exclusion criteria to the CORIMUNO-19 cohort. Known hypersensitivity to Tocilizumab or to any of their excipients. Pregnancy Current documented bacterial infection Patient with any of following laboratory results out of the ranges detailed below at screening should be discussed depending of the medication: Absolute neutrophil count (ANC) ≤ 1.0 x 109/L Haemoglobin level: no limitation Platelets (PLT) < 50 G /L SGOT or SGPT > 5N

Tleyjeh IM. The Misleading "Pooled Effect Estimate" of Crude Data from Observational Studies at Critical Risk of Bias: The Case of Tocilizumab in Coronavirus Disease 2019 (COVID-19). Clin Infect Dis. 2021 Jun 15;72(12):e1154-e1155. doi: 10.1093/cid/ciaa1735. No abstract available.

Hermine O, Mariette X, Tharaux PL, Resche-Rigon M, Porcher R, Ravaud P; CORIMUNO-19 Collaborative Group. Effect of Tocilizumab vs Usual Care in Adults Hospitalized With COVID-19 and Moderate or Severe Pneumonia: A Randomized Clinical Trial. JAMA Intern Med. 2021 Jan 1;181(1):32-40. doi: 10.1001/jamainternmed.2020.6820. Erratum In: JAMA Intern Med. 2021 Jan 1;181(1):144. JAMA Intern Med. 2021 Jul 1;181(7):1021.