Congenital heart diseaseRandomised controlled trial

Apixaban for Prevention of Thromboembolism in Pediatric Heart Disease

J Am Coll CardiolPublished

  • Randomised controlled trial
  • phase 2
  • open-label
  • 2:1 randomisation
  • multinational

Authors' conclusion

In this pediatric multinational, randomized trial, bleeding and thromboembolism were infrequent on apixaban and SOC.

Study context

Population
Children (28 days to <18 years) with congenital or acquired heart disease requiring thromboprophylaxis
Participants
192 children
Comparison
Apixaban vs standard of care
  • Apixabann = 129
  • Standard of care (SOC)n = 63reference
Primary endpoint
Composite of:
  • Adjudicated major
  • Clinically relevant nonmajor bleeding
Follow-up
1 year

Primary result

Major or clinically relevant nonmajor bleeding

% difference

−4.0

95% CI −12.8 to 0.8

Events by treatment group

Apixaban vs SOC
% difference −4.0 (95% CI −12.8 to 0.8)

As reported in the abstract

Secondary outcomes

events

OutcomeApixabanSOC
Thromboembolic events and deaths00

Pharmacokinetics

Apixaban pediatric pharmacokinetics (PK) steady-state exposures consistent with adult levels

Safety

All bleeding events

  • All bleeding events: driven by 12 apixaban participants with ≥4 minor bleeding events

Original publication

Apixaban for Prevention of Thromboembolism in Pediatric Heart Disease. J Am Coll Cardiol. Published 12 December 2023. doi:10.1016/j.jacc.2023.10.010

Summarised from the published abstract; every number is checked against it