Hypertension,Essential Clinical Trial
Official title:
Improving Hypertension Control in CHina and ARGEntina With a Mobile APP-based Telecare System
The CHARGE-APP project will investigate whether an innovative management strategy of hypertension based on the combination of usual care visits and ESH CARE App compared to standard care, is associated with differences in outcome, including control rate of office, home and ambulatory BP, cardiovascular and renal intermediate end points at one year, and changes in a number of blood pressure-related variables throughout the study.
CHARGE-APP is a proof-of-concept one-year prospective, randomized, open-label, blinded endpoint study (PROBE) including 2 groups of patients randomized to different treatment strategies: 1. a new management strategy, named POST (i.e. "Patient Optimal Strategy for Treatment"), consisting in providing the patients with a system to communicate home blood pressure measurements to a referral centre, and the referral centre with an online platform to organize and easily interpret the information sent by patients and to monitor the patients' status; 2. usual care, consisting in regular visits at the referral centre. Patients will be enrolled over 3 months and will be randomly allocated to one of the study groups. Follow-up phase will last 12 months after randomization and will focus on changes in ambulatory systolic BP (primary endpoint), in diastolic ambulatory BP, in office SBP and DBP, in Home SBP and DBP, in left ventricular mass index (LVMI) and urinary albumin excretion (UAE), all secondary end-points. All patients will perform visits at baseline, three, six and twelve months. Physical examination, history of the patient and clinical blood pressure values will be obtained at every visit. Echocardiogram, ECG, urine samples (UAE, urinary albumin/creatinine and 24-h ambulatory blood pressure monitoring (ABPM) will be performed at baseline, three months, six months and study end. Blood samples (full blood count, creatinine, Na+, K+, fasting glucose, HbA1c, uric acid, lipids) will be performed at baseline; another blood sample will be collected at twelve months for measurement of serum creatinine (and renal function). UAE will be measured at baseline and study end, on morning urine samples. Patients randomized to POST-strategy will measure Home BP two days a week (two measurements in the morning and two measurements in the evening) and communicate these values with the ESH CARE app; furthermore, before each visit they will measure their Home BP for 7 consecutive days (two measurements in the morning and two measurements in the evening), according to current guidelines on hypertension. Patients randomized to usual care will also measure Home BP for 7 consecutive days at baseline and at study end, to provide a comparison. Operators (i.e. investigators dedicated to the follow-up of POST-strategy) will check these data organized by the POST system at least every 15 days, and adjust pharmacological therapy, if needed. In patients randomized to usual care, therapy will be adjusted only at follow-up visits (i.e. at three and six months). Pharmacological therapy will be increased or decreased according to blood pressure values; investigators may follow a therapy algorithm based on ESH/ESC guidelines, but are free to individualize it. ;
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