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A daily dose of 1.5 to 2.0 gm of clofibrate lowers serum triglyceride (TG) levels in patients with normal renal function but causes muscle toxicity and elevated creatine phosphokinase (CPK) levels in patients with long-term renal failure. Plasma clofibrate disappearance is prolonged as much as seven times normal in severely uremic patients. A marked reduction in the standard 14 gm/wk clofibrate dose to a total dose of 1.0 to 1.5 gm/wk effectively lowered serum TG levels (--28%, p less than 0.02) in hypertriglyceridemic hemodialysis patients without toxicity. The serum clofibrate level at this dose was comparable to that in hypertriglyceridemic nonuremic patients receiving 14 gm/wk of clofibrate. The dose of clofibrate administered to hemodialysis patients can be adjusted to avoid toxicity and provide the desired therapeutic effect by monitoring serum CPK and TG levels.
Goldberg et al. (Tue,) studied this question.