To evaluate whether remdesivir is associated with cardiac adverse events (CAEs), addressing concerns raised by basic experiments, clinical case reports and observational studies.

Systematic review and meta-analysis.

MEDLINE and Embase, searched from January 2020 to December 2023.

Randomised controlled trials (RCTs) comparing remdesivir with placebo or standard care in patients with COVID-19, with a primary focus on cardiac safety.

We included RCTs that evaluated the safety of remdesivir in patients with COVID-19 . Eligible studies were those that compared remdesivir with placebo or standard care in adult patientsCOVID-19 . Inclusion criteria emphasised safety outcomes, particularly CAEs, as primary endpoints.

Two reviewers independently extracted data. Reporting followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-Harms guidelines. Risk of bias (RoB) was assessed using the Cochrane Collaboration tool. A random-effects model was used for data synthesis. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach was applied to assess the certainty of evidence. The primary outcome was the incidence of any CAEs, defined as a composite of all reported cardiac-related harms. Secondary outcomes included specific CAEs such as arrhythmias, heart failure and myocardial disorders.

We identified 1698 studies, of which seven RCTs met the inclusion criteria, comprising a total of 4566 participants. The RoB was assessed across multiple domains, with four RCTs showing low risk and three showing moderate risk in specific areas. Pooled analysis revealed no significant association between remdesivir use and CAEs (RR=0.84, 95% CI: 0.68 to 1.04, p=0.118). Subgroup analyses showed consistent findings across different patient demographics and comorbidities. GRADE assessment indicated moderate certainty for overall CAEs, low certainty for arrhythmias and heart failure (due to imprecision and study-level bias), and very low certainty for myocardial disorders (due to small sample size and indirectness).

Contrary to preliminary concerns and case reports, our meta-analysis found no evidence of a statistically significant association between remdesivir and CAEs among patients with COVID-19 . These findings provide reassurance to clinicians regarding the safety profile of remdesivir in this patient population, supporting its use as an antiviral therapy in the treatment of COVID-19. Further research is warranted to validate these findings and to clarify whether remdesivir may have a neutral or potentially protective effect on cardiac outcomes.

CRD42022383647.