- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02938910
Study of Myocardial Interstitial Fibrosis in Hyperaldosteronism (COEURALDO)
October 17, 2016 updated by: Assistance Publique - Hôpitaux de Paris
Study of Myocardial Interstitial Fibrosis in Hyperaldosteronism Noninvasive Comparative Study in Humans of the Respective Cardiovascular Effects of Hyperaldosteronism and Hypertension by Magnetic Resonance Imaging
Animal models have demonstrated the role of aldosterone in left ventricular remodeling involving fibrosis, apoptosis and hypertrophy.
Myocardial fibrosis is a risk factor for serious arrhythmia and sudden death in ischemic and idiopathic hypertrophic heart disease.
It is accepted that patients with primary aldosteronism have a higher prevalence of LV hypertrophy , arterial involvement and increased cardiovascular risk.
In humans, a link has been demonstrated between aldosterone and heart failure as well as the benefit of the administration of an anti -aldosterone drug to lower mortality in this population , regardless of blood pressure level .
The administration of spironolactone ( aldosterone ) in hypertensive rats has prevented the occurrence of aortic fibrosis .
Plasma aldosteronism in humans has been associated with inflammation, fibrosis and aortic stiffness .
However, primary aldosteronism is generally associated with so-called secondary hypertension .
Chronic hypertension alone is a recognized etiological factor of myocardial hypertrophy ( myocardial fibrosis very advanced ) .
The purpose of this study is to investigate the effects of MRI hyperaldosteronism on the heart.
Study Overview
Status
Completed
Intervention / Treatment
Detailed Description
Cross-sectional study with double analysis (A and B) with 2 x 2 sub-groups (ratio control/case 1/1)
- clinical situation: subjects are hypertensive. 20 subjects with primary aldosteronism will be compared to 20 patients with essential arterial hypertension
- clinical situation are normotensive subjects, 20 subjects with secondary aldosteronism loss in congenital salt (Bartter's syndrome / Gitelman) will be compared to 20 healthy volunteers. Controls (essential hypertension and healthy volunteers) are matched for age, sex and body size in two experimental groups (HAP and Gitelman). All subjects were recruited by the CIC of the European Georges Pompidou Hospital (Paris).
Study Type
Observational
Enrollment (Actual)
80
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Paris, France, 75015
- Centre d\'investigation Clinique, hopital Europeen George Pompidou
-
-
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
18 years to 75 years (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Patients with primary or secondary hyperaldosteronism compared to hypertensive or normotensive controls
Description
Patients with primary hyperaldosteronism:
- Aldosterone / renin plasma ratio SUP 64 pmol / mU
- aldosterone in a semi-sitting position SUP 500pmol / l or an aldosteronuria> 63nmol/24h,
- Both under neutral treatment for at least 15 days (alpha-blocker, calcium channel blockers, central inhibitors). BMI = 35 kg / m².
For patients with secondary hyperaldosteronism :
- Documented diagnosis by the detection of mutation (s) homozygous or compound heterozygous for the gene SLC12A3 encoding CLCNKB chloride channel, or the gene encoding the HTSC Na-Cl cotransport thiazide sensitive.
- Normal blood pressure (mean of three consecutive measurements of SBP INF 140 mmHg and DBP INF 90 mmHg measured in a semi-sitting position after 5 minutes of rest).
For hypertensive patients :
- Hypertension diagnosed on an average of three consecutive BP measurements = 140 and / or = 90 mmHg in the supine position after 5 minutes of rest or average daytime PA SUP 135/85 mmHg in ambulatory blood pressure monitoring (ABPM) in self-measurement , the presence of one or more antihypertensive medications regardless of the BP level.
- No argument for secondary hypertension (renal artery stenosis, hypermineralocorticoidism, pheochromocytoma, iatrogenic ...) or negative balance of secondary hypertension.
- BMI < 35 kg/m2.
For healthy subjects :
- Normal blood pressure (mean of three consecutive measurements of SBP INF 140 mmHg and DBP INF 90 mmHg measured in a semi-sitting position after 5 minutes of rest).
- Absence of HA known or detected on determinations carried out during the study (see criteria for PAHs).
- BMI <35 kg / m²
- Laboratory tests (hematological and biochemical blood tests, urinalysis, serology and Research toxic) within normal limits or clinically acceptable for age and sex.
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
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Healthy Volunteers
Healthy volunteers with normal blood pressure
|
Non invasive imaging study without interventional procedures
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Primary Hyperaldosteronism
Subjects with hypertension and high levels of seric aldosterone.
|
Non invasive imaging study without interventional procedures
|
Secondary Hyperaldosteronism
Patient with Gitelman syndrome, with normal blood pressure and high level of aldosterone
|
Non invasive imaging study without interventional procedures
|
Essential Hypertension
Patient with hypertension without secondary cause of hypertension
|
Non invasive imaging study without interventional procedures
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Interstitial fibrosis assessed by MRI
Time Frame: One visit
|
Quantitative interstitial fibrosis indices (intra- and extra-cellular LV mass) derived from myocardial relaxation time T1 MRI will be estimated in 4 populations with and without hypertension (patients with essential hypertension or with primary hyperaldosteronism versus healthy volunteers or patients with Gitelman syndrome), and with and without high level of aldosterone (patients with primary hyperaldosteronism or Gitelman syndrome versus patients with essential hypertension or healthy volunteers)
|
One visit
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Evaluation of myocardial remodeling by MRI
Time Frame: One visit
|
Quantitative left ventricular remodeling (LV Mass and LV mass/end diastolic volume) will be estimated in 4 populations with and without hypertension (patients with essential hypertension or with primary hyperaldosteronism versus healthy volunteers or patients with Gitelman syndrome), and with and without high level of aldosterone (patients with primary hyperaldosteronism or Gitelman syndrome versus patients with essential hypertension or healthy volunteers)
|
One visit
|
Effect of hypertension on myocardial fibrosis assessed by MRI
Time Frame: One visit
|
Analyze the relationship in each of the two clinical situations (HTA or absence of hypertension) between the degree of myocardial fibrosis
|
One visit
|
Effect of aldosteronism on myocardial fibrosis assessed by MRI
Time Frame: One visit
|
Analyze the relationship in each of the two clinical situations (HTA or absence of hypertension) between the degree of myocardial fibrosis
|
One visit
|
Effect of hypertension on LV diastolic dysfunction
Time Frame: One visit
|
Analyze the relationship in each of the two clinical situations (HTA or absence of hypertension) between the degree of LV diastolic dysfunction
|
One visit
|
Effect of aldosteronism on LV diastolic dysfunction
Time Frame: One visit
|
Analyze the relationship in each of the two clinical situations (HTA or absence of hypertension) between the degree of LV diastolic dysfunction
|
One visit
|
Effect of hypertension on the relationship between circulating biomarkers of fibrosis
Time Frame: One visit
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Analyze the relationship in each of the two clinical situations (HTA or absence of hypertension) between circulating biomarkers of fibrosis
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One visit
|
Effect of aldosteronism on the relationship between circulating biomarkers of fibrosis
Time Frame: One visit
|
Analyze the relationship in each of the two clinical situations (HTA or absence of hypertension) between circulating biomarkers of fibrosis
|
One visit
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Study Director: Elie MOUSSEAUX, MD, PhD, Assistance Publique des Hopitaux de Paris
- Study Director: Alban REDHEUIL, MD,PhD, Assistance Publique des Hopitaux de Paris
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
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
November 1, 2012
Primary Completion (ACTUAL)
October 1, 2014
Study Completion (ACTUAL)
October 1, 2014
Study Registration Dates
First Submitted
December 15, 2015
First Submitted That Met QC Criteria
October 17, 2016
First Posted (ESTIMATE)
October 19, 2016
Study Record Updates
Last Update Posted (ESTIMATE)
October 19, 2016
Last Update Submitted That Met QC Criteria
October 17, 2016
Last Verified
October 1, 2016
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- P110912
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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