Systemic Lupus Erythematous and Heart Conduction Disorders
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ClinicalTrials.gov Identifier: NCT02162992 |
Recruitment Status :
Completed
First Posted : June 13, 2014
Results First Posted : October 28, 2019
Last Update Posted : October 28, 2019
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Tracking Information | ||||
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First Submitted Date | April 24, 2014 | |||
First Posted Date | June 13, 2014 | |||
Results First Submitted Date | September 4, 2019 | |||
Results First Posted Date | October 28, 2019 | |||
Last Update Posted Date | October 28, 2019 | |||
Study Start Date | April 2014 | |||
Actual Primary Completion Date | November 2017 (Final data collection date for primary outcome measure) | |||
Current Primary Outcome Measures |
Presence of Conduction Disorders in Patients With SLE Regarding to Its Serologic Profile [ Time Frame: 24 hours ] Conduction disorders will be evaluated by 12-lead ECG recordings an 24-hour Holter recordings. Measurements will include PR intervals (in msec), QRS duration (in msec) .
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Original Primary Outcome Measures |
Incidence of conduction disorders in patients with SLE regarding to its serologic profile [ Time Frame: One year ] Conduction disorders will be evaluated by 12-lead ECG recordings an 24-hour Holter recordings. Measurements will include PR intervals (in msec), QRS duration (in msec) and the presence of second or third degree atrioventricular blockade.
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Change History | ||||
Current Secondary Outcome Measures |
QT and Corrected QT Intervals [ Time Frame: 24 hours ] Ventricular repolarization will be evaluated by 12-lead ECG recordings an 24-hour Holter recordings. Measurements will include QT and corrected QT intervals, and the presence of ventricular arrhythmia. Corrected QT (QTc) intervals will be obtained by measuring the QT interval (QTm) and the previous RR interval, following the Bazett formula (QTc=QTm divided by the square root of previous RR interval in seconds). A comparison will be made between the anti-Ro60 antibody positive patients and the anti-Ro60 antibody negative patients.
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Original Secondary Outcome Measures |
Association between anti-Ro60 antibody and conduction disturbances such as QT interval prolongation. [ Time Frame: 24 hours ] Ventricular repolarization will be evaluated by 12-lead ECG recordings an 24-hour Holter recordings. Measurements will include QT and corrected QT intervals, and the presence of ventricular arrhythmia. A comparison will be made between the anti-Ro60 antibody positive patients and the anti-Ro60 antibody negative patients.
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Current Other Pre-specified Outcome Measures | Not Provided | |||
Original Other Pre-specified Outcome Measures | Not Provided | |||
Descriptive Information | ||||
Brief Title | Systemic Lupus Erythematous and Heart Conduction Disorders | |||
Official Title | Repolarization Disorders and Heart Conduction Disorders in Patients With Systemic Lupus Erythematous | |||
Brief Summary | Connective tissue diseases have been related to heart conduction disorders. The anti-Ro/SSA antibodies are thought to have a pathogenic role, and they most prevalent in systemic lupus erythematous (SLE). The aim of this study is to evaluate the relationship between SLE, arrhythmias and its serologic profile. | |||
Detailed Description | We designed a cross-sectional study for an observational analysis. The target population will be the group of SLE patients visited the service of Rheumatology hospitals in Catalonia (Spain). The criteria for subjects selection to participate in our project are: 1 . Inclusion criteria: patients with SLE according to established diagnostic criteria in 1997 2. Exclusion criteria:
The selection of patients and controls are done through a sampling of consecutive patients seen in our outpatient rheumatology center to achieve the sample size. This has been fixed in two subgroups: 100 patients with SLE and positive for anti-Ro (with positivity for anti-Ro only 52 or positivity for anti-Ro and anti-Ro 52 60) and 50 patients (controls ) with SLE and negative for anti-Ro (anti-Ro52 and anti-Ro 60). As defined as primary variables, the study of cardiac conduction disorders will be done through the analysis of resting electrocardiogram (ECG) and a 24-hour Holter. Other descriptive variables are listed below:
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Study Type | Observational | |||
Study Design | Observational Model: Case-Control Time Perspective: Prospective |
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Target Follow-Up Duration | Not Provided | |||
Biospecimen | Not Provided | |||
Sampling Method | Non-Probability Sample | |||
Study Population | Patients with SLE visited in the rheumatology outpatient's area. | |||
Condition |
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Intervention | Other: No intervention
Observational
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Study Groups/Cohorts |
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Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | ||||
Recruitment Status | Completed | |||
Actual Enrollment |
151 | |||
Original Estimated Enrollment |
86 | |||
Actual Study Completion Date | April 2018 | |||
Actual Primary Completion Date | November 2017 (Final data collection date for primary outcome measure) | |||
Eligibility Criteria | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender |
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Ages | 18 Years and older (Adult, Older Adult) | |||
Accepts Healthy Volunteers | No | |||
Contacts | Contact information is only displayed when the study is recruiting subjects | |||
Listed Location Countries | Spain | |||
Removed Location Countries | ||||
Administrative Information | ||||
NCT Number | NCT02162992 | |||
Other Study ID Numbers | ICOR-2014-01 | |||
Has Data Monitoring Committee | No | |||
U.S. FDA-regulated Product | Not Provided | |||
IPD Sharing Statement | Not Provided | |||
Responsible Party | Roger Villuendas Sabaté, Germans Trias i Pujol Hospital | |||
Study Sponsor | Germans Trias i Pujol Hospital | |||
Collaborators | Not Provided | |||
Investigators |
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PRS Account | Germans Trias i Pujol Hospital | |||
Verification Date | October 2019 |