LowSalt4Life: A Mobile Application to Reduce Sodium Intake And Blood Pressure

Launched by UNIVERSITY OF MICHIGAN · May 24, 2022

Keywords

ClinConnect Summary

The LowSalt4Life clinical trial is exploring whether a smartphone app can help people with high blood pressure, also known as hypertension, manage their salt intake and lower their blood pressure. The study will test two versions of the app: one that provides regular support and tips and another that adapts its advice based on individual needs.

To join the trial, participants should be between 65 and 74 years old, have been diagnosed with high blood pressure and have been on stable medication for at least three months. They will need to have a smartphone that can run the app, a valid email, and be comfortable using English. Throughout the study, participants will use the app to track their sodium intake and receive guidance to help improve their health. It’s important to note that individuals with serious health issues, such as very high blood pressure or heart failure, or those who cannot follow a low-sodium diet, will not be eligible to participate.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. Diagnosed with essential hypertension (HTN) by a medical provider and are on stable doses of antihypertensive therapy for at least three months prior to enrollment as documented in the electronic health record (EHR) and confirmed by participant self-report.
• • 2. A smartphone with a compatible Apple or Android operating system installed and able to download and use LowSalt4Life app including accepting all permissions and willing to allow the mobile applications to send push notifications
• • 3. A valid email address
• • 4. Fluent in spoken and written English
• Exclusion Criteria:
• • 1. Unstable symptoms or markedly elevated blood pressure (BP) at enrollment (defined as systolic BP\>180 mmHg, diastolic BP\>120 mmHg)
• • 2. Contraindication to a sodium restriction diet
• • 3. An estimated sodium intake less than 1,500mg per day
• • 4. Known secondary causes of HTN (e.g., adrenal insufficiency, pheochromocytoma)
• • 5. Estimated glomerular filtration rate (EGFR) \<30 or end-stage renal disease on dialysis
• • 6. Heart failure
• • 7. Inability to use Withings devices (blood pressure cuff and scale) due to equipment limitations or contraindications
• • 8. Currently pregnant or intent to become pregnant during the study period