Heart failure & cardiomyopathies

Efficacy and Safety of Aficamten in Children and Adolescents With Obstructive Hypertrophic Cardiomyopathy: Study Design and Rationale of CEDAR-HCM

Circ Heart FailPublished Randomised controlled trial

Authors' conclusion

Results of CEDAR-HCM will provide insight into the safety and efficacy of aficamten in adolescents and in children as young as 6 years of age.

Study context

Population
Adolescents (12 to <18 years) and children (6 to <12 years) with nonsyndromic symptomatic obstructive hypertrophic cardiomyopathy (HCM), LVEF ≥60%, Valsalva LV outflow tract gradient ≥50 mm Hg, NYHA class ≥IIplanned ≈55 adolescents + ≥10 children
Comparison
Aficamten vs placebo
Primary endpoint
Change in Valsalva LV outflow tract gradient from baseline
Follow-up
Week 12
Methodological detailsdesign and rationale, international, multicentre, double-blind, placebo-controlled, 2:1 randomisation, open-label extension
  • Design and rationale
  • International
  • Multicentre
  • Double-blind
  • Placebo-controlled
  • 2:1 randomisation
  • Open-label extension

Primary result

As reported in the abstract

  • Trial currently enrolling; no results

Original publication

Efficacy and Safety of Aficamten in Children and Adolescents With Obstructive Hypertrophic Cardiomyopathy: Study Design and Rationale of CEDAR-HCM. Circ Heart Fail. Published 5 December 2025. doi:10.1161/circheartfailure.125.013418

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