- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04328376
Measurement of the Electromechanical Window to Improve the Diagnosis of Congenital Long QT Syndrome (FEMQT)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Josselin DUCHATEAU, MD
- Phone Number: +33 (0)5 57 65 64 01
- Email: josselin.duchateau@chu-bordeaux.fr
Study Locations
-
-
-
Nantes, France, 44093
- Not yet recruiting
- Nantes University Hospital
-
Contact:
- Vincent PROBST, MD PhD
- Phone Number: +33 (0)2 40 16 52 79
- Email: vincent.probst@chu-nantes.fr
-
Principal Investigator:
- Vincent PROBST, MD PhD
-
Pessac, France, 33604
- Recruiting
- Bordeaux University Hospital
-
Sub-Investigator:
- Romain TIXIER, MD
-
Contact:
- Josselin DUCHATEAU, MD
- Phone Number: +33 (0)5 57 65 64 01
- Email: josselin.duchateau@chu-bordeaux.fr
-
Principal Investigator:
- Josselin DUCHATEAU, MD
-
Sub-Investigator:
- Frédéric SACHER, MD, PhD
-
Saint-Pierre, France, 97410
- Recruiting
- La réunion university hospital
-
Contact:
- Maxime CHURET, MD
- Phone Number: +33 02 62 35 91 53
- Email: maxime.churet@chu-reunion.fr
-
Principal Investigator:
- Maxime CHURET, MD
-
Sub-Investigator:
- Olivier GEOFFROY, MD
-
Toulouse, France, 31400
- Recruiting
- Toulouse University Hospital
-
Contact:
- Jean-Philippe MAURY, MD PhD
- Phone Number: +33 (0)5 61 32 34 70
- Email: maury.p@chu-toulouse.fr
-
Principal Investigator:
- jean-Philippe MAURY, MD PhD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Propositus patients with genetically proven LQTS and their relatives,
- Patients of both sexes aged 12 and over,
- Free, informed and written consent of the patient and the two holders of parental authority for minors.
Exclusion Criteria:
- Inability to consent,
- Person deprived of liberty by judicial or administrative decision,
- Majors subject to a legal protection measure,
- Person participating in another research including an exclusion period still in progress,
- Severely impaired physical and / or psychological health, which, according to the investigator, may affect the participant's compliance with the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Prospective FEMQT Group
Propositus patients with genetically proven LQTS and their relatives
|
A standard ECG is recorded along with a phonocardiographic recording. The phonocardiographic recording is obtained by using a specific electronic stethoscope plugged into the auxiliary port of the ECG machine. The recording takes less than 30 seconds. The two recording methods are concomitant. QT interval is measured on the ECG recording, EMW is measured with ECG coupled to phonocardiography. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Negative predictive value (NPV) obtained by the two methods of diagnosis
Time Frame: Day 1
|
The NPV is measured in percentage.
The NPV of LQTS diagnosis obtained by phonocardiographic method (measurement of the EMW) and the NPV obtained by standard ECG method (QT measurement prolongation) will be compared.
|
Day 1
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Values of sensitivity obtained by the two methods of diagnosis
Time Frame: Day 1
|
Value of sensitivity is measured in percentage.
The values of sensitivity of EMW and standard ECG will be compared.
|
Day 1
|
Values of specificity obtained by the two methods of diagnosis
Time Frame: Day 1
|
Value of specificity is measured in percentage.
The values of specificity of EMW and standard ECG will be compared.
|
Day 1
|
Positive predictive values obtained by the two methods of diagnosis
Time Frame: Day 1
|
Positive predictive value is measured in percentage.
Positive predictive values of EMW and standard ECG will be compared.
|
Day 1
|
Area Under the Curves (AUC) obtained by the two methods of diagnosis
Time Frame: Day 1
|
The AUC obtained by Receiver Operating Characteristic (ROC) analyses is measured by a value between 0 and 1. The AUC obtained by ROC of EMW and standard ECG will be compared. |
Day 1
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Josselin DUCHATEAU, MD, University Hospital, Bordeaux
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CHUBX 2019/35
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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