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Low Blood PressureNCT06491433

Clinical Trial of H2-BP Electronic Sphygmomanometer

A study testing H2-BP in people with Low Blood Pressure and Normal Blood Pressure, run by Gangnam Severance Hospital at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study compares H2-BP, a wristband blood pressure monitor, with an auscultatory sphygmomanometer. Both devices are used on the same arm. After confirming wrist and upper arm circumference, H2-BP is operated by one measurer, while the auscultatory sphygmomanometer is simultaneously operated by two other measurers. Read more about this study

Who is it for?
Ages 19 years and olderHealthy volunteers can take part
What is being tested?
H2-BP
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
141 participants
Where
1 siteSouth Korea
Study dates
27 Apr 2023to 15 Oct 2024
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Outpatients and inpatients aged 19 years or older showing hypotension, normal blood pressure, prehypertension, and hypertension
  • Individuals who meet the criteria for wrist circumference, age, gender, and upper arm circumference as specified in the target number of participants.
  • Those who have listened to a detailed explanation of the clinical trial, fully understand it, voluntarily decide to participate, and provide written consent to comply with precautions.

Who cannot join

  • Patients who do not consent to participate in the study.
  • Individuals who may not maintain stable blood pressure for approximately 30 minutes due to conditions resembling hypovolemia or similar conditions.
  • Those who may not maintain stable blood pressure for approximately 30 minutes due to short-acting vasodilators or similar medications.
  • Individuals with arrhythmia.
  • Those who have eaten within 30 minutes before blood pressure measurement.
  • Individuals who have consumed caffeine-containing beverages within 1 hour or smoked within 15 minutes before measurement.
  • Participants who have exercised immediately before blood pressure measurement.
  • Other patients deemed unsuitable for the study at the discretion of the researchers.

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Gangnam Severance Hospital,

    Seoul

Other trials in South Korea

About this study

Official title: A Prospective, Single Arm, Single Center, Non-randomized, Open Label Study to Evaluate the Accuracy of the Wrist Blood Pressure Monitor (H2-BP) Comparing With Aneroid Sphygmomanometer

The study compares H2-BP, a wristband blood pressure monitor, with an auscultatory sphygmomanometer. Both devices are used on the same arm. After confirming wrist and upper arm circumference, H2-BP is operated by one measurer, while the auscultatory sphygmomanometer is simultaneously operated by two other measurers. Each subject undergoes alternating measurements of H2-BP on one wrist and the auscultatory sphygmomanometer on the same arm until three valid measurement pairs are obtained per subject, with a maximum of eight repetitions allowed. The two auscultatory sphygmomanometer measurers operate independently and cannot see each other's measurements during the test. Measurements are repeated for 10 to 30 minutes until three valid blood pressure values are obtained and recorded. Validity assessment variables are derived from the recorded values to evaluate the accuracy of H2-BP.

Being tested
H2-BP
Medical subject headings
Hypotension, Prehypertension, Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • H2-BPDevice

    Also called Sphygmomanometer, Blood Pressure Measurement

    The patient will have the test device applied to one wrist to measure blood pressure and the control device applied to the upper arm of the same arm to measure blood pressure.

    1. H2-BP: The test device is placed on the wrist and presses a button to start pressurising. When the measurement is complete, the systolic and diastolic blood pressure is displayed on the screen.
    2. big ben® Sphygmomanometer: The cuff is placed on the upper arm and the pump is pressed manually to inflate. 2 measurers will measure systolic and diastolic blood pressure by connecting 2 stethoscopes separately to one cuff.

    Due to the external nature of the study medical device, it is not possible to blind subjects and investigators, so that subjects and measurers are aware of the allocation. Therefore, blinding of subjects and measurers will not be used in this study.

Study groups in NCT06491433
Study groupRoleWhat they receive
Test subjects using H2-BP and big ben® SphygmomanometerExperimentalBlood Pressure Measurement with the H2-BP Electronic Sphygmomanometer (H2-BP) and with aneroid Sphygmomanometer(big ben® Sphygmomanometer).
Receives: Device: H2-BP

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean and Standard Deviation of Differences Between H2-BP Device and Aneroid Sphygmomanometer Measurements.

    Average difference between blood pressure measurements obtained with the test medical device and the comparator.

    Standard deviation of the difference between blood pressure measurements obtained with the test medical device and the comparator (based on the number of measurements).

    Measured: serial assessment during 1 day

Secondary outcomes (1)
  1. Standard Deviation of Differences Between H2-BP Device and Aneroid Sphygmomanometer Measurements.

    Standard deviation of the difference in blood pressure measurements between the test device and the comparator (based on the number of participants)

    Measured: secondary outcome will be out in 1 day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jul 2024
  2. Study start27 Apr 2023
  3. Primary completion15 Oct 2024
  4. Study completion15 Oct 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
141 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06491433
Sponsor's protocol ID
3-2022-0427
Status last verified
Feb 2025
First submitted
30 Jun 2024
Last updated
3 Mar 2025
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing H2-BP in people with Low Blood Pressure and Normal Blood Pressure, run by Gangnam Severance Hospital at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 Mar 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean and Standard Deviation of Differences Between H2-BP Device and Aneroid Sphygmomanometer Measurements. (time frame: serial assessment during 1 day). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Mar 2025.

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