In a double-blind, placebo-controlled study, 54 girls 10-17 years of age who were at least 1 year post-menarche with heFH were randomized to lovastatin (n=35) or placebo (n=19) for 24 weeks. Inclusion in the study required a baseline LDL-C level of 160-400 mg/dL and a parental history of familial hypercholesterolemia. The mean baseline LDL-C value was 218.3 mg/dL (range: 136.3-363.7 mg/dL) in the MEVACOR group compared to 198.8 mg/dL (range: 151.1-283.1 mg/dL) in the placebo group. The dosage of lovastatin (once daily in the evening) was 20 mg for the first 4 weeks, and 40 mg thereafter.

MEVACOR significantly decreased plasma levels of total-C, LDL-C, and apolipoprotein B (see Table V).

TABLE V : Lipid-lowering Effects of Lovastatin in Post-menarchal Girls with Heterozygous Familial Hypercholesterolemia (Mean Percent Change from Baseline at Week 24 in Intention-to-Treat Population)

The mean achieved LDL-C value was 154.5 mg/dL (range: 82-286 mg/dL) in the MEVACOR group compared to 203.5 mg/dL (range: 135-304 mg/dL) in the placebo group.

The safety and efficacy of doses above 40 mg daily have not been studied in children. The long-term efficacy of lovastatin therapy in childhood to reduce morbidity and mortality in adulthood has not been established.

^** Kantola, T, et al., Clin Pharmacol Ther 1998; 63(4):397-402.

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