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Annexin A5 in Patients With Severe COVID-19 Disease: A Single-Center, Randomized, Double-Blind, Placebo-Controlled
Claudio M Martin1,2, Marat Slessarev1,2, Eileen Campbell2
1Division of Critical Care Medicine, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
Objectives:
To evaluate the study design and feasibility of drug administration and safety in a randomized clinical trial of recombinant human annexin A5 (SY-005), a constitutively expressed protein with anti-inflammatory, antiapoptotic, and anticoagulant properties, in patients with severe coronavirus disease 2019 (COVID-19).
Design:
Double-blind, randomized clinical trial.
Setting:
Two ICUs at an academic medical center.
Patients/Subjects:
Adults admitted to the ICU with a confirmed diagnosis of COVID-19 and requiring ventilatory or vasopressor support.
Interventions:
SY-005, a recombinant human annexin A5, at 50 or 100 µg/kg IV every 12 hours for 7 days.
Measurements And Main Results:
We enrolled 18 of the 55 eligible patients (33%) between April 21, 2021, and February 3, 2022. We administered 82% (196/238) of the anticipated doses of study medication and 86% (169/196) were given within 1 hour of the scheduled time. There were no drug-related serious adverse events. We captured 100% of the data that would be required for measuring clinical outcomes in a phase 2 or 3 trial.
Limitations:
The small sample size was a result of decreasing admissions of patients with COVID-19, which triggered a stopping rule for the trial.
Conclusions:
Although enrollment was low, administration of SY-005 to critically ill patients with COVID-19 every 12 hours for up to 7 days was feasible and safe. Further clinical trials of annexin A5 for the treatment of COVID-19 are warranted. Given reduction of severe COVID-19 disease, future studies should explore the safety and effectiveness of SY-005 use in non-COVID-related sepsis.
Insights
Recombinant human annexin A5 (SY-005) administration was feasible and safe in critically ill COVID-19 patients. Further trials are warranted for annexin A5 in COVID-19 and sepsis.
Area of Science:
- Critical care medicine
- Pharmacology
- Immunology
Background:
- Severe coronavirus disease 2019 (COVID-19) presents significant challenges in critical care.
- Recombinant human annexin A5 (SY-005) exhibits anti-inflammatory, antiapoptotic, and anticoagulant properties.
- Investigating novel therapeutic agents for severe COVID-19 is crucial.
Purpose of the Study:
- To assess the study design and feasibility of administering recombinant human annexin A5 (SY-005).
- To evaluate the safety of SY-005 in patients with severe COVID-19.
- To determine the drug administration and safety profile in a randomized clinical trial setting.
Main Methods:
- A double-blind, randomized clinical trial was conducted in two intensive care units (ICUs).
- Adult patients with confirmed COVID-19 requiring ventilatory or vasopressor support were enrolled.
- SY-005 was administered intravenously at 50 or 100 µg/kg every 12 hours for 7 days.
Main Results:
- Enrollment included 18 of 55 eligible patients (33%) due to decreasing COVID-19 admissions.
- 82% of planned SY-005 doses were administered, with 86% given within the scheduled hour.
- No drug-related serious adverse events were reported, and 100% of outcome data were captured.
Conclusions:
- Despite low enrollment, SY-005 administration every 12 hours for up to 7 days was feasible and safe in critically ill COVID-19 patients.
- Further clinical trials of annexin A5 for COVID-19 treatment are recommended.
- Future studies should explore SY-005 safety and effectiveness in non-COVID-19 sepsis.
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