Antihypertensive efficacy and safety of benidipine and its effects on cardiac structure and function in elderly Chinese patients with mild to moderate hypertension: an open-label, long-term study.

Abstract

Benidipine (CAS 91599-74-5) has been reported as an effective antihypertensive treatment and its cardioprotective effects have been shown in several basic and clinical studies. However, the long-term efficacy and safety of benidipine remain unknown in elderly Chinese patient with hypertension. In this prospective, multicenter, open-label clinical trial, 152 eligible patients aged 60 to 75 years with mild to moderate essential hypertension (sitting systolic blood pressure (BP) > or = 140 mmHg and/or sitting diastolic BP > or = 90 mmHg) entered a 52-week study. All patients initially received benidipine 2-4 mg once a day, followed by titration to benidipine 8 mg/day to achieve the target BP (< 140/90 mmHg in non-diabetics and <130/80 mmHg in diabetics). Add-on hydrochlorothiazide (CAS 58-93-5) and/or metoprolol tartaric acid (CAS 3750-58-6) were permitted during the study. Overall, 132 patients completed the 52-week treatment with benidipine as monotherapy or combination therapy. It showed that the regimen based on benidipine provided an obvious mean trough BP reduction of 13.8 +/- 12.4/8.3 +/- 9.2 mmHg (p < 0.001), and 62.5% of patients reached the target BP. In patients with left ventricular hypertrophy, the left ventricular mass index significantly decreased from 147.1 +/- 27.6 g/m2 at baseline to 136.0 +/- 17.5 g/m2 at 52 weeks (p = 0.036). Clinical adverse events (AEs) were found in 15.1% of all patients, and six patients discontinued the treatment due to drug-related AEs during the entire trial. Patients' compliance was an average of 98.7%. Benidipine, with a favorable tolerability profile, provides a long-term antihypertensive effect and potential benefit for the heart in elderly patients with mild to moderate hypertensive, suggesting that it is suitable for elderly patients with hypertension.

• Authors: Weilin Qi, Weihu Fan, RAPID SH Study investigators
• Journal: Arzneimittel-Forschung (Arzneimittelforschung) Vol. 61 Issue 3 Pg. 160-6 ( 2011) ISSN: 0004-4172 [Print] Germany
• PMID: 21528640 (Publication Type: Clinical Trial, Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't)

Chemical References

• Antihypertensive Agents
• Calcium Channel Blockers
• Dihydropyridines
• benidipine

Topics

• Aged
• Antihypertensive Agents (adverse effects, therapeutic use)
• Blood Pressure (drug effects)
• Calcium Channel Blockers (adverse effects, therapeutic use)
• China
• Dihydropyridines (adverse effects, therapeutic use)
• Echocardiography
• Female
• Heart (physiopathology)
• Heart Function Tests
• Heart Rate (drug effects)
• Humans
• Hypertension (drug therapy, pathology, physiopathology)
• Hypertrophy, Left Ventricular (pathology, prevention & control)
• Kidney Function Tests
• Male
• Middle Aged
• Myocardium (pathology)
• Patient Compliance
• Prospective Studies