Actimetry Protocol in COPD Patients
Validation by Three-dimensional Actimetry Measurements of a Predictive Algorithm for Excessive Inactivity in Chronic Obstructive Pulmonary Disease (COPD) Patients
1 other identifier
observational
104
1 country
1
Brief Summary
Recently, the principal investigator published an EI predictive Machine Learning algorithm based solely on clinical data, without any physical activity measures, collected from 1 409 patients. The GOLD standard of EI was defined on the basis of interrogation criteria. Patients considered as EI reported walking less than 10 minutes per day on average, and the pulmonologist judged that the patient had mainly "domestic activities". Despite the subjective nature of the GOLD standard, the algorithm validated on a test sample had an error rate of only 13.7% (AUROC: 0.84, CI95% \[0.75-0.92\]). In the total study population (n=1409), 34% of patients were ultimately classified as EIs by the algorithm, in agreement with the results of studies using actimetry as the GOLD standard. The principal investigator now wish to verify and improve the validity of the MLA on a new smaller population of 104 patients, using a physiological GOLD standard such as three-dimensional actimetry.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jan 2023
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2023
CompletedFirst Submitted
Initial submission to the registry
June 13, 2023
CompletedFirst Posted
Study publicly available on registry
June 26, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 30, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2023
CompletedJune 26, 2023
June 1, 2023
9 months
June 13, 2023
June 22, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
AUC-ROC as the primary endpoint to judge the performance of the algorithm
A contingency table recording the algorithm's performance metrics will be constructed in parallel from the actimetry data. The AUC-ROC will be used as the primary endpoint to judge the performance of the algorithm.
December 2023
Eligibility Criteria
Any patient with a diagnosis of COPD, all GOLD stages combined, who receives a properly informed Colibri-COPD digital consultation and who gives his or her informed consent to participate in this study.
You may qualify if:
- Any patient with a diagnosis of COPD, all GOLD stages combined, who receives a properly informed Colibri-COPD digital consultation.
You may not qualify if:
- Patients with other unstable conditions with treatment,
- Unstable patients:
- Who had an exacerbation in the previous 2 months,
- Patients who have had surgery, a heart attack, a fall, or an accident limiting usual movements in the previous 3 months.
- Protected patients within the meaning of the French Public Health Code
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Private Practice
Grenoble, France
Related Publications (6)
Watz H, Pitta F, Rochester CL, Garcia-Aymerich J, ZuWallack R, Troosters T, Vaes AW, Puhan MA, Jehn M, Polkey MI, Vogiatzis I, Clini EM, Toth M, Gimeno-Santos E, Waschki B, Esteban C, Hayot M, Casaburi R, Porszasz J, McAuley E, Singh SJ, Langer D, Wouters EF, Magnussen H, Spruit MA. An official European Respiratory Society statement on physical activity in COPD. Eur Respir J. 2014 Dec;44(6):1521-37. doi: 10.1183/09031936.00046814. Epub 2014 Oct 30.
PMID: 25359358BACKGROUNDFurlanetto KC, Donaria L, Schneider LP, Lopes JR, Ribeiro M, Fernandes KB, Hernandes NA, Pitta F. Sedentary Behavior Is an Independent Predictor of Mortality in Subjects With COPD. Respir Care. 2017 May;62(5):579-587. doi: 10.4187/respcare.05306. Epub 2017 Mar 7.
PMID: 28270544BACKGROUNDRabinovich RA, Louvaris Z, Raste Y, Langer D, Van Remoortel H, Giavedoni S, Burtin C, Regueiro EM, Vogiatzis I, Hopkinson NS, Polkey MI, Wilson FJ, Macnee W, Westerterp KR, Troosters T; PROactive Consortium. Validity of physical activity monitors during daily life in patients with COPD. Eur Respir J. 2013 Nov;42(5):1205-15. doi: 10.1183/09031936.00134312. Epub 2013 Feb 8.
PMID: 23397303BACKGROUNDSchneider LP, Furlanetto KC, Rodrigues A, Lopes JR, Hernandes NA, Pitta F. Sedentary Behaviour and Physical Inactivity in Patients with Chronic Obstructive Pulmonary Disease: Two Sides of the Same Coin? COPD. 2018 Oct;15(5):432-438. doi: 10.1080/15412555.2018.1548587.
PMID: 30822241BACKGROUNDvan Gestel AJ, Clarenbach CF, Stowhas AC, Rossi VA, Sievi NA, Camen G, Russi EW, Kohler M. Predicting daily physical activity in patients with chronic obstructive pulmonary disease. PLoS One. 2012;7(11):e48081. doi: 10.1371/journal.pone.0048081. Epub 2012 Nov 2.
PMID: 23133612BACKGROUNDWeng SF, Reps J, Kai J, Garibaldi JM, Qureshi N. Can machine-learning improve cardiovascular risk prediction using routine clinical data? PLoS One. 2017 Apr 4;12(4):e0174944. doi: 10.1371/journal.pone.0174944. eCollection 2017.
PMID: 28376093BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Bernard Aguilaniu, M.D. PhD
Association pour la Complementarite des Connaissances et des Pratiques de la Pneumologie
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 1 Year
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 13, 2023
First Posted
June 26, 2023
Study Start
January 1, 2023
Primary Completion
September 30, 2023
Study Completion
December 31, 2023
Last Updated
June 26, 2023
Record last verified: 2023-06