Cardio-oncology & otherMeta-analysis

Timing, Translation, and Preparedness

J Am Coll CardiolPublished

  • Systematic review and individual participant data meta-analysis of randomised trials
  • exploratory counterfactual sequential individual participant data meta-analysis (IPDMA)
  • mixed-effects logistic regression

Authors' conclusion

Therapeutic-dose anticoagulation was associated with reduced odds of organ support or death and, in this context, serves as a case study of how evidence emerges and is acted upon under conditions of uncertainty.

Study context

Population
Noncritically ill patients hospitalized for COVID-19
Participants
6,362 patients · 7 randomized controlled trials (RCTs)
Comparison
Therapeutic-dose vs nontherapeutic-dose anticoagulation
Outcome
Organ support or death

Pooled result

As reported in the abstract

Adjusted odds ratio

0.81

95% CI 0.67–0.97

By group

Therapeutic-dose vs Nontherapeutic-dose
adjusted OR 0.81 (95% CI 0.67–0.97)

Further pooled results

Organ support or death, exploratory counterfactual sequential IPDMA · May 2021, ≈13 months after first patient enrollment

Pooled treatment effect became statistically significant
adjusted OR 0.73 (0.58-0.91) (95% CI; 6 RCTs, n = 3,944)
  • exploratory

Safety

Major bleeding

Major bleeding was rare
0.8% vs 0.5%

Original publication

Timing, Translation, and Preparedness. J Am Coll Cardiol. Published 28 July 2026. doi:10.1016/j.jacc.2026.05.028

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