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Can a phone app help kidney patients keep healthy habits? small study tests feasibility

NCT ID NCT04858295

Knowledge-focused Sponsor: University of Pennsylvania 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 pilot study tested a smartphone-based tool called SMART-HABITS in 47 adults with chronic kidney disease and high blood pressure. The tool provided reminders, feedback, and educational resources through text messages or an app, and linked to wearable devices like Fitbits and blood pressure monitors. The main goal was to see if people would actually use the tool and find it acceptable, not to measure health outcomes. The study used a cross-over design to compare preferences for text versus app communication.

What this could mean

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

Active substance
mobile health app and text messaging
What this could lead to
If successful, this approach could point toward a practical, low-cost way to help people with chronic kidney disease stick to healthy habits and manage their blood pressure.
What could go wrong
This is a very small pilot study (47 people) focused on feasibility, not on proving health benefits. The results may not apply to everyone, and the app may not work for those less comfortable with technology.

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

47 people

The number who actually took part.

Started

Jul 2021

Finished

May 2023

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

18 years and older

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: * adult patients with hypertension (treated with three or less anti-hypertensive medications) and chronic kidney disease stage 3 or 4 managed in participating nephrology practices * have a smartphone that they are willing to carry with them the majority of the time while enrolled in the study * able to comprehend English, * have ability to walk. * mean blood pressure of \<=180/100 mmHg from historical blood pressure readings in the electronic medical record * able and willing to provide informed consent Exclusion Criteria: * inability to provide consent or read or speak English * had MI or stroke within the previous six months, * diagnosis of dementia or cognitive impairment * inability to walk * already participating in another physical activity study * belong to vulnerable population * likely to receive a kidney transplant within 1 month of enrollment into the trial * living in a long-term care or rehabilitation institution * likely to have their care transferred to another facility outside participating clinic areas during the course of the study * planning to travel or live consecutively out of the country for more than one month * participating in another intervention trial, * hypertension not managed by the nephrologist in the clinic * prescribed more than three anti-hypertensive medications (i.e. resistant hypertension), * any other reason they do not expect to be able to complete the study.

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Conditions

The condition(s) this trial relates to.

chronic kidney disease chronic renal failure syndrome hypertensive disorder

As listed by the trial registrant

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

Hypertension Renal insufficiency, chronic

Contacts and locations

Locations

  • Penn Presbyterian Medical Center

    Philadelphia, Pennsylvania, 19104, United States

More trials for these conditions

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