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Smartphone app and local health workers team up to fight heart disease

NCT ID NCT05511701

Disease control Sponsor: Harvard School of Public Health (HSPH) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a program that combines a mobile health app, community health workers, and text message reminders to help people lower their risk of heart disease. About 968 adults in Argentina who are at high risk will take part. The goal is to see if this approach can improve blood pressure, cholesterol, and overall heart health over 12 months.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
mHealth app, community health worker visits, electronic decision support, SMS reminders, and point-of-care cholesterol testing
What this could lead to
If successful, this could provide a practical, low-cost way to reduce heart disease risk in underserved communities using mobile technology and local health workers.
What could go wrong
This is a behavioral intervention trial, not a drug study, so results may vary by setting. The 12-month follow-up is relatively short, and long-term benefits are uncertain.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

968 people

The number who actually took part.

Started

Oct 2022

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 to 74 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * aged 40-74 * depend exclusively on public health insurance * have access to a cell phone for personal use * can open and read SMS messages on cell phone * receive primary care at the local PCC * have a 10-year CVD risk \>= 10% and mean SBP \>= 140 mmHg OR * have a 10-year CVD risk \>= 10% and LDL-C \>= 70 mg/dL for persons with diabetes OR * have a 10-year CVD risk \>= 10% and LDL-C \>= 100 mg/dL for persons without diabetes Exclusion Criteria: * Persons who plan to move from the neighborhood within the next 2 years * pregnant at the time of screening * Bed bound * Weight \> 180 kg - this exceeds the upper limit that can be measured on portable scales. * Total cholesterol \< 100 mg/dL or \> 500 mg/dL. * LDL-C \> 300 mg/dL * Triglycerides \< 45 mg/dL or \> 400 mg/dL. * HDL \< 15 mg/dL. * Systolic blood pressure (SBP) \>=180 mmHg or Diastolic blood pressure (DBP) \>= 120 mmHg, and experiencing chest pain, palpitations, or shortness of breath. * currently on dialysis or has a history of chronic kidney disease. * self-reported history of CVD (stroke, AMI). * self-reported history of a liver abnormality. * have a mid-upper arm circumference \> 42 cm - this is the maximum cuff size available for use with blood pressure monitors in Argentina * do not consent to participate.

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder myocardial ischemia prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cardiovascular diseases (CVD)

Contacts and locations

Locations

  • Iecs Instituto de Efectividad Clinica Y Sanitaria

    Buenos Aires, Argentina

More trials for these conditions

Other studies related to the condition(s) this trial covers.