Mobile Cued Adherence Therapy (mCAT) for Blood Pressure Medication

This study is testing a new mobile health program called Mobile Cued Adherence Therapy (mCAT) to help people with high blood pressure (hypertension) remember to take their medication. The study will look at whether daily incentives through the Wellth app, either alone or combined with "action planning" (like deciding to take your pill after your morning coffee), can help you take your blood pressure medication regularly. Researchers want to see if these methods can improve medication taking, control blood pressure, and potentially lower healthcare costs. You might be able to join if you are 18 or older, have been diagnosed with hypertension, can use a smartphone, and have been prescribed blood pressure medication for at least 6 months but have had trouble taking it consistently. The study plans to enroll 600 people, but its current recruitment status is unclear.

Study design
This is an interventional study planning to enroll 600 participants. It will compare different behavioral interventions: the Wellth App, Action Planning, and a combination of Wellth + Cue.
What's involved
Participants will use the Wellth app to submit daily photos of their pill-taking for four months. Medication adherence will be measured for 24 months before and during the 24-month study period, and cardiovascular health will be measured at several points over 24 months.
Compensation
Participants may receive $30 at the end of four consecutive 30-day periods ($120 total) if they show complete medication adherence through the Wellth app.
Follow-up
Participants will be followed for cardiovascular health at 4 months (after intervention), 8 months, 12 months, and 24 months after baseline.

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NCT06876233

Mobile Cued Adherence Therapy (mCAT) for Blood Pressure Medication

Recruiting
NAAges 18+InterventionalTreatment
Chad [email protected]
~600 participants
Updated 2026-03-16 on ClinicalTrials.gov
What's tested:Wellth AppAction PlanningWellth + Cue

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Medication Adherence
Measured over 24 months prior to the study through the 24-month study period
+1 more outcome measured
Medication Adherence
Hypertension
Habits
1 sites across 1 states
California1

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  • Medication Adherence24 months prior to the study through the 24-month study period

    The investigators will use Medicaid's prescription data to construct the Primary Outcome of AH medication adherence using the date and supply of pills for each new prescription or refill to determine the number of days in a month a client had pills available. Since refills are often made before an existing prescription ends, the supply of new medications will be counted on days following the last available dose of the prior prescription. The number of days with available AH medication(s) will be divided by the total number of days in the same month to calculate the proportion of days covered (PDC), which will range from 0 and 1.

  • Cardiovascular HealthBaseline, after the 4-month intervention, 8-month follow-up, 12-month follow-up, and 24-month follow-up

    All participants will be asked to submit blood pressure readings for seven consecutive days after baseline activities, and be reminded via SMS and email to submit readings after the 4-month intervention and again after the month 8, 12, and 24 assessments. The investigators will calculate the Primary Outcome measure of blood pressure as participants' mean and coefficient of variation in systolic and diastolic blood pressure over the seven-day interval.