Validating the CART BP ring cuffless blood pressure monitor

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The trial compares the CART BP, a ring-type cuffless monitor that uses photoplethysmography (PPG), against auscultatory cuff measurements following the 2023 European Society of Hypertension (ESH) recommendations. Measurements will be taken across different arm positions and before and after exercise challenges (aerobic and repeated handgrip) to capture variations in blood pressure. Adult participants aged 18–79 with suspected hypertension or hypotension will have paired readings from the CART BP and a dual-head stethoscope reference method. The protocol excludes people with high BMI, atrial fibrillation, recent major heart disease, end-stage renal disease, pregnancy, or inability to perform repeated exercises.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Subjects aged 18 years or older but younger than 80 years
* Individuals who voluntarily decide to participate in this clinical trial and provide written consent to the information and consent form
* Individuals willing to comply with the clinical trial protocol

Exclusion Criteria:

* Subjects who do not consent to the study
* Obese individuals with a Body Mass Index (BMI) of 30 or higher (concerns about measurement errors as the standard 24-hour ambulatory blood pressure monitor cuff may not fit the arm properly)
* Patients or volunteers who are pregnant
* Patients or volunteers with underlying heart diseases: those with a history of hospitalization for heart failure, valvular disease, or myocardial infarction
* Patients or volunteers diagnosed with atrial fibrillation on a 12-lead electrocardiogram (ECG) within the past 6 months
* Patients or volunteers with end-stage renal disease (undergoing dialysis)
* Patients or volunteers unable to perform repeated exercises required for the study
* Patients or volunteers with a systolic blood pressure (SBP) exceeding 160 millimeters of mercury (mmHg)
* Patients or volunteers with a systolic blood pressure (SBP) exceeding 160 millimeters of mercury (mmHg) and/or a diastolic blood pressure (DBP) exceeding 100 millimeters of mercury (mmHg) (for exercise tests)

Where it's running

• Samsung Medical Center
  Seoul, South Korea Recruiting

Study contacts

• Principal investigator: Seung Woo Park — Samsung Medical Center
• Study coordinator: Gerrard Kim
• Email: gerrard.kim@skylabs.io
• Phone: +82-10-5192-8767

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.