Cardio-oncology & otherCohort study

Anthracycline-induced cardiovascular toxicity: validation of the Heart Failure Association and International Cardio-Oncology Society risk score

Eur Heart JPublished

  • Registry-based cohort study (risk score validation)

Authors' conclusion

The HFA-ICOS score effectively categorizes patients by cardiovascular toxicity risk and demonstrates strong predictive ability for high-risk anthracycline-related cardiovascular toxicity and all-cause mortality.

Study context

Population
Anthracycline-treated patients in the CARDIOTOX registry
Participants
1,066 patients
Exposure
HFA-ICOS risk categories
  • Low riskn = 571reference
  • Moderate riskn = 333
  • High riskn = 152
  • Very high riskn = 10
Outcome
Symptomatic or moderate to severe asymptomatic CTRCD

Main finding

As reported in the abstract

median follow-up 54.8 months (IQR 24.6-81.8)

Hazard ratio

28.74

95% CI 9.33–88.5

P < 0.001

Very high risk vs Low risk
HR 28.74 (95% CI 9.33–88.5); P < 0.001
Cancer therapy-related cardiac dysfunction (CTRCD) overall (incl. mild asymptomatic)
718 (67.3%)
Symptomatic CTRCD
45
Moderate to severe asymptomatic CTRCD
24
Mild asymptomatic CTRCD
649

Observational data: associations, not effects.

Secondary outcomes

OutcomeHR (95% CI)P value
All-cause mortality7.43 (3.21–17.2)P < 0.001
All-cause mortality — Deaths
197 (18.4%)

Model performance for symptomatic or moderate/severe asymptomatic CTRCD · 12 months

Brier score (calibration)
0.04, 95% CI 0.03-0.05
AUC
0.78, 95% CI 0.70-0.82
Uno's C-statistic
0.78, 95% CI 0.71-0.84

Original publication

Anthracycline-induced cardiovascular toxicity: validation of the Heart Failure Association and International Cardio-Oncology Society risk score. Eur Heart J. Published 6 August 2024. doi:10.1093/eurheartj/ehae496

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