Study of Physiological Signals During and After COPD Exacerbations (DACRE)
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ClinicalTrials.gov Identifier: NCT04034901 |
Recruitment Status :
Recruiting
First Posted : July 26, 2019
Last Update Posted : July 20, 2022
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Background : Acute exacerbations of COPD (Chronic Obstructive Pulmonary Disease) are frequent events in the course of the disease and they can deteriorate the respiratory function of the patients, impact their quality of life and even potentially threaten their life. It is therefore crucial to prevent these exacerbations from occurring.
Aim of the study : Investigate how cardiorespiratory parameters of COPD patients differ between exacerbation phases and their nominal state in order to identify predictors of COPD exacerbations.
Study design : Patients admitted at one of the investigation centers on a suspicion of COPD exacerbation will be enrolled on a voluntary basis. Enrolled patients' cardiorespiratory parameters will be monitored with a connected wrist-worn pulse oximeter (BORA Band) during the hospitalisation phase and one month after they have been discharged.
Setting : 4 investigative centers across Brittany
Patients : 50 patients will be enrolled in the study
Condition or disease | Intervention/treatment | Phase |
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COPD COPD Exacerbation | Device: Monitoring of cardiorespiratory parameters with BORA Band | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 50 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | Collecte de données Physiologiques en Continu Chez Des Patients en Insuffisance Respiratoire Pendant et après un épisode d'Exacerbation de BPCO |
Actual Study Start Date : | January 15, 2021 |
Estimated Primary Completion Date : | January 15, 2023 |
Estimated Study Completion Date : | January 15, 2023 |

Arm | Intervention/treatment |
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Experimental: Monitoring of cardiorespiratory parameters
Monitoring of cardiorespiratory parameters with BORA Band
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Device: Monitoring of cardiorespiratory parameters with BORA Band
The subjects will continuously wear a connected wrist-worn pulse oximeter which will remotely collect the following measurements :
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- Variation of heart rate during and after a COPD acute exacerbation [ Time Frame: 2 months ]Average heart rate in beats per minute during and after COPD exacerbation will be assessed thanks to a wrist-worn connected pulse oximeter
- Variation of respiratory rate during and after a COPD acute exacerbation [ Time Frame: 2 months ]Average respiratory rate in cycles per minute during and after COPD exacerbation will be assessed thanks to a wrist-worn connected pulse oximeter
- Variation of SpO2 during and after a COPD acute exacerbation [ Time Frame: 2 months ]Average SpO2 in percent during and after COPD exacerbation will be assessed thanks to a wrist-worn connected pulse oximeter
- Variation of skin temperature during and after a COPD acute exacerbation [ Time Frame: 2 months ]Average skin temperature in celcius during and after COPD exacerbation will be assessed thanks to a wrist-worn connected pulse oximeter
- Variation of patient activity during and after a COPD acute exacerbation [ Time Frame: 2 months ]Average patient activity measured in activity duration per day during and after COPD exacerbation will be assessed thanks to a wrist-worn connected pulse oximeter
- Connected wrist-worn pulse oximeter adherence [ Time Frame: 2 months ]The mean duration of bora band utilization will be measured (mean number of days and mean number of hours per day)
- Patient satisfaction [ Time Frame: 2 months ]the patient satisfaction with the connected wrist-worn pulse oximeter will be assessed using a series of yes or no questions about the comfort, the acceptability, the ease of use and the size of the device.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- patient known or suspected to suffer from COPD
- patient admitted in pulmonology unit for COPD exacerbation
- patient accepting to use BORA Band during and after hospitalization
- patient accepting to be followed by the partner health care provider for this study (Air de Bretagne)
- patient able to understand French and express their informed consent
- patient affiliated to social security
Exclusion Criteria:
- patient is intubated
- patient already followed by a health care provider other than Air de Bretagne
- investigator assesses that the patient will have difficulties following the protocol
- patient already enrolled in another interventional study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04034901
Contact: Quentin Bodinier, Ph.D. | 973248810 ext +33 | quentin.bodinier@biosency.com | |
Contact: Anne-Laure Serandour, Pharm.D. | 299121962 ext +33 | al.serandour@slbpharma.com |
France | |
Chru Pontchaillou | Recruiting |
Rennes, France, 35000 | |
Contact: Graziella Brinchault, MD 0299282478 |
Principal Investigator: | Graziella Brinchault, M.D. | CHU Rennes |
Responsible Party: | Biosency |
ClinicalTrials.gov Identifier: | NCT04034901 |
Other Study ID Numbers: |
2019-A00642-55 |
First Posted: | July 26, 2019 Key Record Dates |
Last Update Posted: | July 20, 2022 |
Last Verified: | July 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Pulmonary Disease, Chronic Obstructive Lung Diseases, Obstructive Lung Diseases Respiratory Tract Diseases |