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J Pediatr. 2007 Feb;150(2):134-9, 139.e1.

Efficacy and safety of extended release metoprolol succinate in hypertensive children 6 to 16 years of age: a clinical trial experience.

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  • 1Department of Pediatrics, Section of Nephrology, Columbus Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio 43205, USA. donb@pediatrics.ohio-state.edu

Abstract

OBJECTIVE:

To evaluate the efficacy, tolerability, and blood pressure (BP) lowering effect of extended release metoprolol succinate (ER metoprolol) in children 6 to 16 years of age with established hypertension.

STUDY DESIGN:

Patients were randomized to one of four treatment arms: placebo or ER metoprolol (0.2 mg/kg, 1.0 mg/kg, or 2.0 mg/kg). Data were analyzed on 140 intent-to-treat patients.

RESULTS:

Mean age (+/-SD) was 12.5 +/- 2.8 years and mean baseline BP was 132/78 +/- 9/9 mmHg. Following 4 weeks of treatment, mean changes in sitting BP were: placebo = -1.9/-2.1 mmHg; ER metoprolol 0.2 mg/kg = -5.2/-3.1 mmHg; 1.0 mg/kg = -7.7/-4.9 mmHg; 2.0 mg/kg = -6.3/-7.5 mmHg. Compared with placebo, ER metoprolol significantly reduced systolic blood pressure (SBP) at the 1.0 and 2.0 mg/kg dose (P = .027 and P = .049, respectively), reduced diastolic blood pressure (DBP) at the 2.0 mg/kg dose (P = .017), and showed a statistically significant dose response relationship for the placebo-corrected change in DBP from baseline. There were no serious adverse events or adverse events requiring study drug discontinuation among patients receiving active therapy.

CONCLUSION:

These data indicate that ER metoprolol is an effective and well-tolerated treatment for hypertension in children.

TRIAL REGISTRATION:

ClinicalTrials.gov NCT00255502 NCT00255528.

PMID:
17236889
[PubMed - indexed for MEDLINE]
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