N-of-1 Trials vs. Usual Care in Children With Hypertension: A Pilot Randomized Clinical Trial

Area of Science:

• Pediatric Cardiology
• Clinical Hypertension Management
• Personalized Medicine

Background:

• Inadequate blood pressure (BP) control is common in pediatric hypertension.
• Personalized (n-of-1) trials offer a promising approach for tailoring treatment strategies.
• This study evaluated the efficacy of n-of-1 trials in improving BP control in young patients.

Purpose of the Study:

• To assess if n-of-1 trials improve blood pressure control in pediatric hypertension patients.
• To compare the effectiveness of n-of-1 trial-guided treatment versus usual care.
• To determine the impact of personalized treatment strategies on BP management in adolescents and young adults.

Main Methods:

• A randomized clinical trial involving hypertensive adolescents and young adults (10-22 years) was conducted.
• Participants were randomized 1:1 to either n-of-1 trials using ambulatory BP monitoring or usual care.
• The primary outcome was ambulatory BP control at 6 months, analyzed using Bayesian methods.

Main Results:

• Among 49 participants, n-of-1 trials showed a 69%-74% probability of increasing BP control at 6 months.
• Systolic BP reduction was likely greater in the n-of-1 trial group (mean difference -3.6 mm Hg).
• No significant differences were observed in side effects or caregiver satisfaction between groups.

Conclusions:

• N-of-1 trials guided by ambulatory BP monitoring likely enhance BP control probability in hypertensive adolescents and young adults.
• A larger clinical trial is recommended to validate the use of n-of-1 trials in routine clinical practice.
• Personalized treatment approaches show potential for optimizing hypertension management in pediatric populations.