Hypertrophic Cardiomyopathy Clinical Trial
Official title:
Pilot Study of Hypertrophic Cardiomyopathy & Implantable Cardioverter Defibrillator Assessment: (Subcutaneous vs Transvenous)
Pilot randomised trial to assess recruitment for a larger trial to compare the efficacy and adverse effects of the subcutaneous and transvenous ICD in patients with hypertrophic cardiomyopathy (HCM) and indication for ICD therapy, with no requirement for pacing
This study aims to test the feasibility of conducting a trial to investigate the use of subcutaneous implantable defibrillator (SICD) in patients with hypertrophic cardiomyopathy (HCM) and to determine whether SICD produces more complications than conventional, transvenous implantable defibrillator (TV ICD). The primary analysis for the main trial is designed to test whether the S-ICD is non-inferior to the TV-ICD with respect to the primary endpoint of inappropriate shock treatment and complications. For the incidence of the primary endpoint statistical significance and 99% confidence intervals are calculated using Cox' proportional hazards model. Non-inferiority is considered to be established if the upper boundary of the one-sided 99% confidence interval did not exceed 1.92 (absolute difference < 12%). Participant duration is expected to be 14 months. (12 months follow up post device implant) Recruitment duration expected to be 6-10 months. ;
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