The American journal of medicine
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Randomized Controlled Trial Clinical Trial
Concomitant insulin and sulfonylurea therapy in patients with type II diabetes. Effects on glucoregulation and lipid metabolism.
Recent evidence suggests concomitant insulin and sulfonylurea therapy has a theoretical potential in the management of type II diabetes mellitus. In a long-term double-blind, randomized placebo-controlled study of combination therapy, serum glucose, C-peptide, total cholesterol, triglyceride, low-density lipoprotein cholesterol, very-low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol concentrations were evaluated in insulin-treated patients with poorly controlled, type II diabetes mellitus after addition of either glyburide (n = 10) or placebo (n = 12). Oral glucose tolerance testing was performed at weeks 0, 4, and 16. ⋯ Despite significantly lower fasting serum glucose and glycosylated hemoglobin levels after 16 weeks, combination treatment did not normalize glycemic control. Glucose tolerance decreased further after 16 weeks despite persistence of increased endogenous insulin secretion. The role of the combination therapy in the long-term care of patients with type II diabetes mellitus needs further investigation.