Twenty-four-hour blood pressure monitoring during treatment with extended-release felodipine versus slow-release nifedipine in elderly patients with mild to moderate hypertension: A randomized, double-blind, cross-over study

D. Bonaduce, V. Canonico, M. Petretta, L. Forgione, A. Ianniciello, V. Cavallaro, F. Bertocchi, F. Rengo

Research output: Contribution to journalArticle

Abstract

Objective: This double-blind, placebo-controled randomized study was designed to compare the antihypertensive effect and tolerability of extended-release felodipine and slow-release nifedipine retard in elderly hypertensive patients. Methods: Thirty patients of both sexes (mean age 71 years) with mild to moderate essential hypertension were recruited from our hypertension outpatient clinic. After a 2-week placebo period, felodipine extended-release (felodipine ER), 10 mg once daily, nifedipine slow-release retard (nifedipine SR), 20 mg twice daily or placebo were administered to each patient for 2 weeks according to a 3 x 3 latin-square design. At the end of each treatment period, the patients underwent 24-h noninvasive blood pressure monitoring. Results: All of the patients completed the trial and no serious adverse experience was reported. In comparison with placebo, felodipine and nifedipine decreased mean 24-h diastolic blood pressure by 6.7 and 4.3 mmHg, respectively, with no significant difference between the two drugs. Mean 24-h systolic blood pressure also decreased after felodipine and nifedipine, with no difference between the two drugs. Both drugs reduced blood pressure variability, lowering the 24-h mean standard deviation of mean hourly blood pressure values. The trough:peak ratio for felodipine was 80% for systolic and 75% for diastolic blood pressure. Conclusion: Felodipine ER once daily lowers blood pressure in elderly hypertensives and is as effective as nifedipine SR twice daily. The high trough:peak ratio suggests that the dose and the between-dose interval of felodipine provides adequate therapeutic coverage.

Original languageEnglish
Pages (from-to)95-100
Number of pages6
JournalEuropean Journal of Clinical Pharmacology
Volume53
Issue number2
DOIs
Publication statusPublished - 1997

Keywords

  • Felodipine ER
  • Hypertension

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Pharmacology, Toxicology and Pharmaceutics(all)

Fingerprint Dive into the research topics of 'Twenty-four-hour blood pressure monitoring during treatment with extended-release felodipine versus slow-release nifedipine in elderly patients with mild to moderate hypertension: A randomized, double-blind, cross-over study'. Together they form a unique fingerprint.

  • Cite this