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Could a ring replace the blood pressure cuff for heart patients?

NCT ID NCT07626879

Diagnosis Sponsor: Keimyung University Dongsan Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 wearable ring that measures blood pressure, comparing it to the standard 24-hour monitor in 100 people with heart failure and reduced pumping ability. The goal is to see if the ring is accurate and easy to use. If successful, it could make blood pressure tracking more convenient for patients.

What this could mean

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

Active substance
CART-BP ring-type wearable blood pressure monitoring device
What this could lead to
If it works, this could offer a simpler, more comfortable way to track blood pressure in heart failure patients, potentially improving home monitoring.
What could go wrong
This is a small, early feasibility study (100 participants) focused on accuracy, not health outcomes. The ring device may not match the standard monitor's precision.

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.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2025

Expected to finish

Oct 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.

Who is studied

Heart Failure with Reduced Ejection Fraction patients

Ages

19 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: 1. Age ≥ 19 years (male or female) 2. Diagnosed with heart failure and currently under treatment 3. Left ventricular ejection fraction (LVEF) ≤ 40% confirmed by echocardiography performed within 1 year prior to enrollment 4. Able to undergo both 24-hour ambulatory blood pressure monitoring and ring-type blood pressure measurement 5. Voluntarily provided written informed consent to participate in this clinical study Exclusion Criteria: 1. Office blood pressure: SBP \< 90 mmHg, or DBP \< 50 mmHg, or SBP \> 180 mmHg, or DBP \> 100 mmHg 2. Unable to perform 24-hour ambulatory blood pressure monitoring 3. Unable to wear or use the ring-type blood pressure device 4. Variability in three consecutive resting cuff blood pressure measurements ≥ 20 mmHg (SBP) or ≥ 10 mmHg (DBP) 5. Insufficient valid ABPM readings: \< 25 daytime or \< 12 nighttime measurements per ESH criteria; or \< 25 daytime or \< 12 nighttime valid readings from the ring-type device 6. Pregnant, suspected pregnancy, or breastfeeding 7. Judged by the investigator to be legally or mentally unfit to participate in the clinical study

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Conditions

The condition(s) this trial relates to.

hypertensive disorder systolic heart failure

As listed by the trial registrant

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

Heart failure with reduced ejection fraction; hypertension

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Keimyung University Dongsan Medical Center

    RECRUITING

    Daegu, 42601, South Korea

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