MACH 1, 2000 | mibefradil titrated up to100mg daily (n=1295) vs. placebo (n=1295) | Patients with moderate to severe congestive heart failure (NYHA class II to IV and left ventricular fraction ,35%).pj | Double aveugle Parallel groups Sample size: 1295/1295 Primary endpoint: all-cause mortality FU duration: 1.6 years |