- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06003205
Contributing Factors to Local Bioimpedance Spectroscopy (COBI)
March 8, 2024 updated by: Mode Sensors AS
Assessment of Contributing Factors to Local Bioimpedance Spectroscopy Using a Wearable Sensor: An Intervention Study
This is an exploratory interventional study.
The aim of the investigation is to identify and quantify contributing factors to local bioimpedance spectroscopy (BIS) measured by a wearable sensor patch, particularly the effect of fluid shifts caused by postural changes and lower body negative pressure (LBNP).
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
The investigational devices (patches) will perform near-continuous measurements of multifrequency bioimpedance (BIS), temperature, and body orientation (accelerometer) during the entire period of wear (2 days).
Patches will be mounted at the upper body (back and thorax) and calf.
The primary objective is to assess the effect of prolonged lower body negative pressure (LBNP) on the BIS of the calf.
The target population is healthy volunteers between 18-50 years old.
Study Type
Interventional
Enrollment (Actual)
11
Phase
- 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 Contact
- Name: Sigve N Aas, PhD
- Phone Number: 004741499074
- Email: sigve.aas@modesensors.com
Study Contact Backup
- Name: Frida Bremnes, M.Sc.
- Email: frida.bremnes@modesensors.com
Study Locations
-
-
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Oslo, Norway, 0586
- Physiology lab. Aker hospital, Oslo University Hospital
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Contact:
- Lars Ø Høiseth, PhD
- Email: LHOIS@ous-hf.no
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Principal Investigator:
- Lars Ø Høiseth, PhD
-
-
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
Ages Eligible for Study
- Adult
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- 18 to 50 years of age, at the time of signing the informed consent
- Overtly healthy as determined by medical evaluation including medical history, physical examination and focused cardiac ultrasound.
- Use of adequate birth control for women of childbearing potential. Inclusion is possible when an acceptable effective contraceptive measure is used (combined (estrogen and progestogen containing) hormonal contraception, progestogen-only hormonal contraception associated with inhibition of ovulation, intrauterine device, intrauterine hormone-releasing system, bilateral tubal occlusion, vasectomised partner or sexual abstinence).
- Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
Exclusion Criteria:
- Known allergies or skin sensitivities to electrode hydrogel and/or acrylic adhesives
- Breached skin at patch mounting area.
- Implantable pulse generators such as pacemakers and defibrillators, and/or use of other electrical medical equipment for which an interaction effect with the investigational device cannot be ruled out.
- Planned magnetic resonance (MR) imaging during the investigation period
- Any medical condition limiting physical exertional capacity or requiring regular medication (allergy and contraceptives excepted).
- Pregnancy
- Breastfeeding
- History of syncope (syncope of presumed vasovagal nature with known precipitating factor excepted).
- Any known cardiac disease that, at the investigator's discretion, warrants exclusion from the study, including but not limited to cardiac arrhythmia, esophageal varices, and aneurysms.
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: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Wearable bioimpedance sensor
All subjects will use the investigational device and undergo several interventions: lower body negative pressure (3-40 minutes at 30 mmHg), posture intervention, and pressure intervention.
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The investigational device is an electronic bioimpedance-based, body-worn, battery-powered sensor intended to monitor changes in fluid volume.
It is designed as an adhesive patch with four integrated electrodes.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Relative change in extracellular resistance of the calf from t0 to t1 (immediately before and after 40 minutes of LBNP at 30 mmHg), measured by the investigational bioimpedance device
Time Frame: 40 minutes
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Relative change in extracellular resistance at the calf from before to after 40 minutes of lower body negative pressure, to assess the effect of prolonged LBNP.
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40 minutes
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in extracellular resistance at the upper back following postural changes, measured by the investigational bioimpedance device.
Time Frame: 6 hours
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Relative change in extracellular resistance at the upper back following changes in posture
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6 hours
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Changes in extracellular resistance at the upper back following application of three different external pressures.
Time Frame: 2 hours
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Mean differences in extracellular resistance of the upper back, when the subject lays in a supine position on three different surfaces.
Extracellular resistance is measured by the investigational bioimpedance device.
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2 hours
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Frequency and severity of adverse device effects
Time Frame: 3 days
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To assess the safety of the investigational device in healthy volunteers
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3 days
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Study Director: Sigve N Aas, PhD, Mode Sensors AS
- Principal Investigator: Lars Ø Høiseth, PhD, Oslo University Hospital
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)
September 4, 2023
Primary Completion (Actual)
September 14, 2023
Study Completion (Actual)
September 14, 2023
Study Registration Dates
First Submitted
August 2, 2023
First Submitted That Met QC Criteria
August 17, 2023
First Posted (Actual)
August 21, 2023
Study Record Updates
Last Update Posted (Actual)
March 12, 2024
Last Update Submitted That Met QC Criteria
March 8, 2024
Last Verified
March 1, 2024
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- DOC1040A COBI
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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