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Sponsor: Lorenzo delSorbo
Conditions: Acute Hypoxemic Respiratory Failure
Interventions: Tocilizumab (Actemra®), Dexamethasone
Countries: Canada
Acute hypoxemic respiratory failure (AHRF) happens when the lungs are unable to absorb enough oxygen. The bloodstream is deprived of oxygen which can eventually lead to more severe conditions like multi-organ failure (MOF) and death. AHRF accounts for over 30% of patients to critical care units, thus novel treatments are sorely needed. Research has shown that blood levels of the inflammatory biomarker Interleukin-6 (IL-6) may be a reliable marker for predicting which patients with AHRF will progress into requiring intensive care unit (ICU) admission, MOF, and eventually death. IL-6 levels were shown to reliably peak several days before MOF, ICU admission, and death. Thus, the investigators believe that by identifying patients before the peak of their IL-6 levels, they will be able to administer early treatment to prevent the patient's condition from worsening. The aim of this study is to test the feasibility of a treatment strategy for AHRF based on IL-6 measurement in patients who are admitted to hospital care with AHRF. Patients who are eligible for the study will have their plasma IL-6 levels measured over 2 days. Patients with elevated IL-6 levels will be randomized into 1 of 3 treatment groups: standard of care only, standard of care plus a single IV infusion of Tocilizumab, or standard of care plus treatment with oral Dexamethasone for 10 days. Patients will then be observed till discharge or up to 28 days, and a follow-up phone interview will be conducted 6 months of the end of the observation period.
Sex: ALL
Age: 18 Years to —
Healthy volunteers: No
Study type: INTERVENTIONAL
Inclusion Criteria: 1. Age ≥18 years 2. Presence of new onset of respiratory symptoms in the previous 14 days upon presentation at the emergency department. Respiratory symptoms are characterized by at least one of the following: cough, dyspnea, or requirement of oxygen supplementation 3. Requirement of inpatient hospital management Exclusion Criteria: 1. Inability to provide informed consent 2. Patients with known contraindications to dexamethasone or tocilizumab, or any of their components 3. Allergic reaction to tocilizumab or other monoclonal antibodies 4. Patients who are using azathioprine or cyclophosphamide 5. Active tuberculosis infection 6. Patients who have active hepatic disease or hepatic impairment 7. ALT or AST \>3x upper limit of normal 8. Neutrophil count \<1000/mcl 9. Platelet count \<50,000/mm3 10. Hemoglobin (Hb) below 8.5 g/dL, 11. White blood cell count (WBC) below 3000/mm3 12. Absolute Neutrophil Count (ANC) below 2.0 x 109/L 13. absolute lymphocyte count below 500/mm3 14. total bilirubin above ULN 15. Triglycerides (TG) above 10 mmol/L (above 900 mg/dL) 16. Serum creatinine above 1.4 mg/dL in female patients and above 1.6 mg/dL in male patients 17. Patients already receiving systemic steroids, monoclonal antibodies or other immunosuppressive medications at the time of presentation 18. Inability to comply with the regulations to avoid conception within 28 days after enrollment 19. Admission to ICU prior to randomization 20. Immediate need for intubation 21. Imminent death 22. Clinical team refusal 23. Participation in other drug clinical trials (this criterion will be discussed with the PI) 24. Reaching \>72h since hospital admission 25. Pregnancy (positive pregnancy test) or breastfeeding (which is a contraindication to tocilizumab)
- Toronto, Ontario, Canada