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Clinical Trial Summary

National and international guidelines that guide evidence-based clinical practice advocate an effort to improve blood pressure control based on changing lifestyle and use of blood pressure lowering medication. However, the effectiveness of the approach usually depends on patient adherence to both types of interventions - pharmacological and behavioral. Lack of success on blood pressure control has increased the scope of interventions to improve adherence and to reduce cardiovascular risk factors without overburdening the public health system. The use of technologies - mobile or smart phones, games, blogs, internet and video conferencing - to implement interventions can reduce costs and increase coverage.

Interactive interventions have been associated with a reduction in systolic blood pressure of 3-8 mmHg in patients with hypertension. These interventions were individually tailored to patient specificities and involved self-monitoring of blood pressure and lifestyle changes, including regular physical activity, DASH diet, restriction of dietary salt intake, and weight control. However, the effectiviness of these interventions may have short half-lives without periodic reinforcement, either to adhere to pharmacological treatment or behavioral changes. Innovative technologies can be used to achieve lasting effect and even greater blood pressure reduction.

Therefore, the purpose of this study is to compare effectiveness of four strategies to reduce blood pressure and improve lifestyle.

Clinical Trial Description

This is a factorial randomized controlled trial of comparative effectiveness and precision medicine. Participants will be randomly assigned in a ratio of 1:1:2:1 to one of four arms: telemonitoring of blood pressure by smart phone, text message for lifestyle changes, both interventions (telemonitoring and messages) or usual clinical care. At randomization, all participants will receive a printed booklet with lifestyle modification guidelines. The standardized recommendation to adhere to the pharmacological treatment prescribed by the attending physician will also be implemented. These types of interventions do not allow the research assistant responsible for monitoring to be blinded, but the researcher resposible for the assessment of the outcome will be blinded to the allocated arm and the results will be evaluated through objective measurements. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03005470
Study type Interventional
Source Hospital de Clinicas de Porto Alegre
Status Active, not recruiting
Phase Phase 3
Start date January 2017
Completion date February 2019

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