Remote Blood Pressure Monitoring With the Wearable SENBIOSYS Photoplethysmographic Device

October 14, 2021 updated by: Stéphane Cook, Prof
During the last couple of years, a growing number of wearable devices evolved to provide accurate, cheap and non-invasive monitoring of vitals parameters.This connected care technology could be helpful for treatment and care during a pandemic such as COVID-19. The use of these non-invasive remote monitoring devices can help health care providers to assess patient's vital signs and symptom progression, reducing reducing patient and healthcare provider contact and exposure to COVID-19 during this pandemic.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Several cuff-less blood pressure monitoring devices have emerged in patient care using photoplethysmography. PPG utilizes an infrared or visible light to measure peripheral volumetric variations of blood circulation and its waveform has been proven to have a good correlation with BP waveform.Nonetheless, the accuracy of these instruments is of fundamental importance.

Several validation procedures for assessing the precision of BP monitoring devices have been developed, including protocols by the Association for the Advancement of Medical Instrumentation, International Organization for Standardization and European Society of Hypertension. Adherence to these guidelines are essential to ensure the effectiveness of BP measurement of the wearable devices.

Therefore, the investigators propose to test wearable low-noise, low-power SENBIOSYS photoplethysmography signals for estimation of BP.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
35

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Switzerland
      • Fribourg, Switzerland, 1700
        • University and Hospital Fribourg

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Participants fulfilling the following inclusion criteria are eligible for the study:

  • Age ≥ 18 years
  • Patients referred for coronarography
  • Patient in the intensive care unit requiring invasive blood pressure monitoring and with an arterial catheter in place at the time of inclusion to the study

The presence of any of the following exclusion criteria will lead to exclusion of the participant:

  • Unable or unwilling to provide written informed consent
  • Coronarography in patients with myocardial infarction
  • Patient with suspected or certified COVID-infection
  • Patients with atrial fibrillation

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: OTHER
  • Allocation: NON_RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: Standardized measures in the cardiac catheterization laborator
Immediately after coronary angiography, intra-arterial BP waveforms will be recorded using a fluid-filled catheter via right femoral or radial access. The catheter will be flushed before any waveform recordings is made. At first, the catheter will be positioned in the aorta for 3 minutes of stable BP waveforms recording. Intracoronary nitroglycerin will be administered at a dose of 300 µg, newly preceding 3 minute of recording. At the end of the coronary angiography, additional 3 minutes of recording will be performed in the aorta.
Device: Senbiosys
The patients will undergo blood pressure estimation as per clinical routine and will simultaneously wear the device.
EXPERIMENTAL: Standardized measures in the intensive care unit
Invasive BP monitoring is a commonly used technique in the ICU and is used to guide many intensive care unit therapies. Enrolled patients must have had an arterial catheter in place at the time of inclusion to the study. Arterial catheterization will be performed by the intensive care team according to current medical guidelines. No arterial catheters were placed for the sole purpose of this study. The Senbiosys device will be placed on the opposite arm of the arterial catheter for simultaneous measurements.
Device: Senbiosys
The patients will undergo blood pressure estimation as per clinical routine and will simultaneously wear the device.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Feasibility of non-invasive BP monitors: blood pressure
Time Frame: 10 to 15 minutes per patient (once)
The primary outcome is the assessment of mean bias (± 95% CI or precision of bias) for systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean blood pressure (MBP) between invasive and non-invasive BP measurements. The standard deviation of the bias (±95% limits of agreement), will be assessed for SBP, DBP, and MBP measurements.
10 to 15 minutes per patient (once)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of signal with artefact,
Time Frame: 10 to 15 minutes per patient (once)
Secondary outcomes include reliability index (Qualification Index QI) for blood pressure epochs and count of qualified epochs.
10 to 15 minutes per patient (once)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Stéphane Cook, Prof

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Stéphane Cook, MD, University of Freiburg

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2020

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 31, 2020

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 31, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 22, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 4, 2020

First Posted (ACTUAL)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 8, 2020

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 20, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 14, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2020

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SENBIOSYS trial

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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