[Effectiveness and tolerance of long-term acarbose therapy in diabetic patients with threatened secondary failure of sulfonylurea drug treatment].


The efficacy and tolerability of acarbose was studied in 14 type-2-diabetic patients poorly controlled with diet and sulfonylureas. Acarbose was given in addition to sulfonylureas in a single-blind, placebo-controlled study for three times three months (acarbose-placebo-acarbose). At the beginning of the study and every three months body weight, HbA1c and biochemical and hematological safety parameters were measured. The patients controlled their mid morning urine glucose and two to four times daily their blood glucose concentration with a memory glucometer. Diabetic control improved significantly: HbA1c was 8.5 +/- 1.4% at the beginning, 6.5 +/- 1.1% after three months with acarbose (p < 0.001), 7.2 +/- 0.9% after three months placebo (p < 0.01) and 6.7 +/- 1.3% again after three months with acarbose (p < 0.05). Thus, the effect of acarbose alone accounts for 0.7 or 0.5% respectively, whereas the effect of teaching and diet in a special diabetes unit (the difference from the study to placebo) accounts for 1.3% of HbA1c. Home monitored blood and urine glucose values were improved: The postprandial blood glucose concentrations, the postprandial differences, the mean blood glucose concentrations and the glycosuria were decreased during acarbose treatment in comparison with placebo. The preprandial blood glucose concentrations before breakfast and supper were not influenced by acarbose. Hematological and biochemical safety parameters as well as blood pressure and heart rate were unchanged. Meteorism and flatulence as typical side effects decreased during treatment. Acarbose is a safe and effective adjunct treatment for type-2-diabetic patients uncontrolled with diet and sulfonylurea alone.


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