Pulmonary vascular disease & thromboembolismRandomised controlled trial

Extended Reduced-Dose Apixaban for Cancer-Associated Venous Thromboembolism

N Engl J MedPublished

  • Randomised controlled trial
  • double-blind
  • non-inferiority
  • blinded central outcome adjudication
  • Median treatment duration 11.8 months (IQR 8.3 to 12.1)

Authors' conclusion

Extended anticoagulation with reduced-dose apixaban was noninferior to full-dose apixaban for the prevention of recurrent venous thromboembolism in patients with active cancer. The reduced dose led to a lower incidence of clinically relevant bleeding complications than the full dose.

Study context

Population
Patients with active cancer and proximal DVT or PE who had completed ≥6 months of anticoagulant therapy
Participants
1,766 patients
Comparison
Reduced-dose vs full-dose apixaban
  • Reduced dosen = 866
  • Full dosen = 900reference
Primary endpoint
Centrally adjudicated fatal or nonfatal recurrent VTE (non-inferiority margin 2.00 for upper 95% CI boundary of subhazard ratio)

Primary result

Recurrent VTE

Adjusted subhazard ratio

0.76

95% CI 0.41–1.41

P = 0.001 for non-inferiority

Events by treatment group

As reported in the abstract

Secondary outcomes

OutcomeReduced doseFull doseadjusted HR (95% CI)
Mortality17.7%19.6%0.96 (0.86–1.06)

Safety

Clinically relevant bleeding (key secondary, superiority)

adjusted subhazard ratio 0.75 (0.58–0.97) · P = 0.03

Original publication

Extended Reduced-Dose Apixaban for Cancer-Associated Venous Thromboembolism. N Engl J Med. Published 29 March 2025. doi:10.1056/nejmoa2416112

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