The Validation Study of Bioelectronics

Not Applicable

Recruiting

• Conditions: Healthy; Health Behavior
• Interventions: Device: Multi-modality Noninvasive Biosensor; Device: Oximeter; Device: Portable Blood Pressure Monitor; Device: Vicorder Pulse Wave Velocity Monitor

• Registration Number: NCT05397951
• Lead Sponsor: University of North Carolina, Chapel Hill

Brief Summary

The purpose of this study is to investigate the safe wearability and basic functions of the multi-modality sensors fabricated in the PI lab.

Detailed Description

Members of this research team have developed innovative, wearable devices capable of being comfortably and continuously worn while recording diverse physiologic measurements. The purpose of this study is to validate the safe wearability and basic functions of the novel biocompatible electronic sensor that will allow continuous, non-invasive physiological measurements. This study aims to obtain preliminary data on the safety and functional aspects of the developed devices and compare it to approved medical equipments (including Abbott Medquip Oximeter, Omron blood pressure monitor, and Vicorder device for pulse wave velocity), which will pave the way for future study that focuses certain disease model. Participants will be randomly assigned to Condition A, and wear the devices before and after exercise for 15 minutes each time, or Condition B and wear the devices for 2 hours continuously. During their 1-hour or 2.5-hour lab visit, study participants will wear the biocompatible electronic sensors and three approved medical devices during a slow deep breath, before and after a 6-minute brisk walk, or for an extended period of time (2 hours). Participants will return to the lab for two brief visits, 48 and 96 hours after the device wearing, to determine if any suspected adverse events related to study procedures or devices emerged after they left the research site. For the future study, we will plan to 1) optimize the devices for use in patients needing FiO2 weaning, 2) demonstrate the reliability, and accuracy of these devices for continuous physiological measurements, including but not limited to blood pressure, heart rate (HR), cerebral blood flow, temperature, glucose concentration, and respiratory rate, and 3) demonstrate these devices are preferred by patients to current measurement tools. Once validated, such sensors could fundamentally change the way blood flow, blood pressure, or related parameters are monitored for patients, eliminating risks associated with invasive monitoring, allowing continuous, real-time detection of clinically meaningful changes in the patients, advancing knowledge of hormonal signatures and physiological signals preceding clinically meaningful events.

Study Timeline

• Study First Submitted: 2022-05-19
• Study First Submitted QC: 2022-05-25
• Study First Posted: 2022-05-31
• Status Verified: 2023-09
• Study Start: 2024-01-09
• Last Update Submitted: 2024-01-31
• Last Update Posted: 2024-02-01
• Primary Completion: 2024-03
• Study Completion: 2024-03

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 22

Inclusion Criteria

• Individuals with ages between 18 and 99.
• Healthy individuals (not known to suffer any significant illness relevant to the proposed study).

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Exclusion Criteria

• Pregnant or lactating.
• History of active (clinically significant) skin disorders that make skin vulnerable to contact conventional electronic devices.
• History of allergic response to silicones or adhesives (such as 3M Tegaderm).
• Broken, damaged or irritated skin or rashes near the sensor application sites (finger, wrist, temple, subclavian, arm, neck, and thigh).
• Subjects who are physically or cognitively unable to normally perform activities of daily living, assessed at the discretion of the investigator to ensure safe completion of study tasks.
• Subjects who are unable to participate in moderate exercise for 6 minutes.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Wearing Biosensor Before & After Exercise	Oximeter	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices for 15 minutes before and after a brisk 6-minute walk.
Wearing Biosensor Before & After Exercise	Vicorder Pulse Wave Velocity Monitor	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices for 15 minutes before and after a brisk 6-minute walk.
Wearing Biosensor Before & After Exercise	Multi-modality Noninvasive Biosensor	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices for 15 minutes before and after a brisk 6-minute walk.
Wearing Biosensor for an Extended Period	Multi-modality Noninvasive Biosensor	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices continuously for 2 hours.
Wearing Biosensor for an Extended Period	Oximeter	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices continuously for 2 hours.
Wearing Biosensor for an Extended Period	Vicorder Pulse Wave Velocity Monitor	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices continuously for 2 hours.
Wearing Biosensor Before & After Exercise	Portable Blood Pressure Monitor	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices for 15 minutes before and after a brisk 6-minute walk.
Wearing Biosensor for an Extended Period	Portable Blood Pressure Monitor	Each study participant will wear the bioelectronic sensors during a slow deep breath. Participants will wear the sensors and devices continuously for 2 hours.

Primary Outcome Measures

Name	Time	Method
Mean Comfort Level of Wearable Sensors	Questionnaire completed within 96 hours after device application.	A questionnaire about the comfort of the wearable sensors will be measured using the Likert scale, which ranges from 1 to 5 and is used to measure attitudes and perception changes about the our sensor. The minimum value 1 represents "strongly disagree" and the maximum value 5 represents "strongly agree", thus higher scores represent a better outcome.
Mean Safety Level of Wearable Sensors	Questionnaire completed within 96 hours after device application.	A questionnaire about the safety and reactions to the wearable sensors will be measured using the Likert scale, which ranges from 1 to 5 and is used to measure attitudes and perception changes about the safety of our sensor. The minimum value 1 represents "strongly disagree" and the maximum value 5 represents "strongly agree", thus higher scores represent a better outcome.
Mean Agreement Over Time of Physiological Parameters between Newly-Fabricated Wearable Sensors and Approved Devices	Through study completion, an average of 15 minutes.	Signals from the approved medical devices will measure tissue mechanics, heart rate, respiration rate, blood flow, and pulse oxygenation measurements and these data will be compared to the signals from our sensors. The difference over time will be measured on a scale from a minimum of 0 and a maximum of 1, with 0 being the best outcome and representing the lowest difference between the sensing data from the different devices.

Trial Locations

Locations (1)

Kenan Laboratories at the University of North Carolina at Chapel Hill; 🇺🇸 Chapel Hill, North Carolina, United States