Niacin revisited. A randomized, controlled trial of wax-matrix sustained-release niacin in hypercholesterolemia.
Two hundred one male and female subjects, aged 20 to 70 years, with elevated low-density lipoprotein cholesterol values (in the 75th to 95th percentiles), participated in a randomized, controlled, double-blind study using a new form of niacin (Enduracin), which employs a wax-matrix vehicle for sustained release. Four niacin treatment groups (daily doses of 2000, 1500, 1250, and 1000 mg) were compared with placebo- and diet-treated controls to determine side-effect profile and optimal range of efficacy. The groups given 2000 and 1500 mg demonstrated significant reductions in values of low-density lipoprotein cholesterol (-26% and -19.3%, respectively), total cholesterol (-18.4% and -13.3%), and total cholesterol-high-density lipoprotein cholesterol ratio (-20.4% and -19.4%) when compared with diet- and placebo-treated controls. Smaller improvements were seen in high-density lipoprotein cholesterol and triglyceride levels. Blood chemistry monitoring indicated that reduction in low-density lipoprotein cholesterol level strongly correlated with an increase in baseline levels of some enzymes for niacin-treated subjects. The improved side-effect profile of the wax-matrix form of niacin was particularly notable. The dropout rate due to side effects was only 3.4% and was coupled with good medication compliance.[1]References
- Niacin revisited. A randomized, controlled trial of wax-matrix sustained-release niacin in hypercholesterolemia. Keenan, J.M., Fontaine, P.L., Wenz, J.B., Myers, S., Huang, Z.Q., Ripsin, C.M. Arch. Intern. Med. (1991) [Pubmed]
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