Cardio-oncology & other

Effect of Thromboprophylaxis on Clinical Outcomes After COVID-19 Hospitalization

Ann Intern MedPublished Randomised controlled trial

  • terminated early
  • Enrollment terminated early because of a lower than anticipated event rate and declining COVID-19 hospitalizations

Authors' conclusion

The incidence of death or thromboembolism was low in this cohort of patients discharged after hospitalization with COVID-19. Because of early enrollment termination, the results were imprecise and the study was inconclusive.

Study context

Population
Adults hospitalized with COVID-19 for ≥48 hours and ready for discharge, without requirement for or contraindication to anticoagulation36 [3.0%] lost to follow-up
Participants
1,217 adults
Comparison
Apixaban 2.5 mg twice daily vs placebo for 30 days after discharge
Primary endpoint
Composite of:
  • Death
  • Arterial thromboembolism
  • VTE
Follow-up
30 days
Methodological detailsdouble-blind, placebo-controlled, prospective, 127 US hospitals, Conducted 2021 to 2022
  • Double-blind
  • Placebo-controlled
  • Prospective
  • 127 US hospitals
  • Conducted 2021 to 2022

Primary result

As reported in the abstract

Further findings

Permanent discontinuation of study drug · day 30

Safety

Major bleeding · 30 days

Clinically relevant nonmajor bleeding · 30 days

Original publication

Effect of Thromboprophylaxis on Clinical Outcomes After COVID-19 Hospitalization. Ann Intern Med. Published 21 March 2023. doi:10.7326/m22-3350

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