Effectiveness and Safety of High Dose Enalapril Versus Combined Low Dose Enalapril and Manidipine among Patients with Type 2 Diabetic, Hypertension and Albuminuria: An Open-Label Randomized Controlled Trial
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Abstract
Objective: To study the efficacy and safety of high-dose enalapril compared to low-dose enalapril combined with manidipine in type 2 diabetic patients with uncontrolled hypertension and albuminuria. Methods: An open label randomized controlled trial was conducted at Pa Sang Hospital, Lamphun Province. Patients were divided into two groups. The control group received high-dose enalapril (30-40 mg/day). The experimental group received low-dose enalapril (5-20 mg/day) combined with manidipine (10-20 mg/day). Data were collected over 24 weeks, with three assessments of treatment outcomes at day 0, week 12 ± 2, and week 24 ± 2. A modified intention-to-treat analysis was performed on patients who received at least one dose of the study medication. Differences in variables between groups were tested using t-tests or Fisher’s exact test. Treatment outcomes were compared using Generalized Estimating Equation (GEE). Results: Both high-dose enalapril and low-dose enalapril combined with manidipine effectively reduced blood pressure levels in patients with albuminuria with no significant differences between them. High-dose enalapril demonstrated a better and significant efficacy in reducing UACR (urine albumin to creatinine ratio) levels in patients with macroalbuminuria compared to low-dose enalapril combined with manidipine. However, the overall treatment efficacy did not differ significantly between the two regimens in patients with microalbuminuria. In terms of safety, patients in the high-dose enalapril group experienced a statistically significant higher incidence of cough compared to the low-dose enalapril combined with manidipine group. No significant differences were observed in other side effects. Conclusion: In type 2 diabetic patients with uncontrolled hypertension and microalbuminuria, high-dose enalapril is recommended. For patients with microalbuminuria, both low-dose enalapril combined with manidipine and high-dose enalapril are viable treatment options.
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ผลการวิจัยและความคิดเห็นที่ปรากฏในบทความถือเป็นความคิดเห็นและอยู่ในความรับผิดชอบของผู้นิพนธ์ มิใช่ความเห็นหรือความรับผิดชอบของกองบรรณาธิการ หรือคณะเภสัชศาสตร์ มหาวิทยาลัยสงขลานครินทร์ ทั้งนี้ไม่รวมความผิดพลาดอันเกิดจากการพิมพ์ บทความที่ได้รับการเผยแพร่โดยวารสารเภสัชกรรมไทยถือเป็นสิทธิ์ของวารสารฯ
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