Critical Care Explorations (Oct 2023)

Annexin A5 in Patients With Severe COVID-19 Disease: A Single-Center, Randomized, Double-Blind, Placebo-Controlled Feasibility Trial

  • Claudio M. Martin, MD,
  • Marat Slessarev, MD, PhD,
  • Eileen Campbell,
  • John Basmaji, MD,
  • Ian Ball, MD,
  • Douglas D. Fraser, MD, PhD,
  • Aleksandra Leligdowicz, MD, PhD,
  • Tina Mele, MD, PhD,
  • Fran Priestap, MSc,
  • Brent J. Tschirhart, MSc,
  • Tracey Bentall, RN,
  • Xiangru Lu, MD,
  • Qingping Feng, MD, PhD

DOI
https://doi.org/10.1097/CCE.0000000000000986
Journal volume & issue
Vol. 5, no. 10
p. e0986

Abstract

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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.