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  • Title: Effects of exenatide on systolic blood pressure in subjects with type 2 diabetes.
    Author: Okerson T, Yan P, Stonehouse A, Brodows R.
    Journal: Am J Hypertens; 2010 Mar; 23(3):334-9. PubMed ID: 20019672.
    Abstract:
    BACKGROUND: The majority of patients with type 2 diabetes mellitus have blood pressure (BP) exceeding the recommended value of <130/80 mm Hg. Optimal control of hyperglycemia and hypertension has been shown to reduce the incidence of macrovascular and microvascular complications due to diabetes. Treatment with the GLP-1 receptor agonist exenatide, previously demonstrated to reduce hemoglobin A(1C) and weight in subjects with type 2 diabetes, was associated with BP reduction in several studies. METHODS: This analysis explored the effects of exenatide vs. placebo or insulin on BP measurements in pooled data from six trials including 2,171 subjects studied for at least 6 months. RESULTS: Overall, 6 months of exenatide treatment was associated with a significantly greater reduction in systolic BP (SBP) compared with placebo (least squares mean (s.e.): difference of -2.8 mm Hg (0.75); P = 0.0002) or insulin (difference of -3.7 mm Hg (0.85); P < 0.0001). No significant intergroup differences in diastolic BP (DBP) were observed. The majority of the intergroup difference was observed in subjects with SBP > or = 130 mm Hg (difference of -3.8 mm Hg (1.08) from placebo: P = 0.0004; difference of -4.0 mm Hg (1.01) from insulin; P < 0.0001). The largest intertreatment differences between exenatide and comparators were observed in subjects with SBP >/=150 mm Hg. Similar responses were observed in African-American subjects. A weak correlation between the amount of weight lost and reduction in SBP was found (r = 0.09, P = 0.002) for exenatide-treated subjects. CONCLUSIONS: These results support the need for a prospective, randomized, controlled study of BP changes during exenatide treatment in patients with hypertension and type 2 diabetes.
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