NCT05396001

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

A Just-In-Time Adaptive Mobile Application Intervention To Reduce Sodium Intake And Blood Pressure In Hypertensive Patients: LowSalt4Life

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 410 (actual)
• Sponsor: University of Michigan · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This research is being done to learn if a smartphone app with and without a just in time adaptive intervention (JITAI) can help patients with hypertension manage their sodium intake and improve their blood pressure.

Detailed description

The primary and secondary outcomes will be determined in months 1 \& 2. Participants will continue for another 4 months and during that time data for exploratory measures will be collected. During the first 2 months of the study, a micro-randomized trial (MRT) will be performed within the App+JITAI group (N=200). This MRT is designed to learn which push notification messages effectively prompt the user to interact with the appropriate content within the mobile application.

Conditions

• Hypertension
• Blood Pressure

Interventions

Type	Name	Description
BEHAVIORAL	LowSalt4Life Application	LowSalt4Life is a dietary sodium intervention mobile application that promotes lower sodium intake.
BEHAVIORAL	Just-In-time Adaptive Intervention (JITAI)	LowSalt4Life is a dietary sodium application with a just-in-time adaptive intervention (JITAI) component enabled.

Timeline

• Start date: 2022-08-15
• Primary completion: 2025-10-31
• Completion: 2025-10-31
• First posted: 2022-05-27
• Last updated: 2025-11-18

Locations

1 site across 1 country: United States