Cardiac Amyloidosis : Diagnostic Using Red Flag Signals (TEAM Red Flags)

November 16, 2020 updated by: University Hospital Center of Martinique

Early Echographic Screening of Cardiac Amyloidosis Using Red Flag Signals

Cardiac amyloidosis is an increasingly contributor of degenerative cardiac diseases. However, its frequency remains underestimated, and diagnosis is often realized at late stages of the disease. A larger use of clinical and echographic Red Flag signals during routine echocardiographic examination may enhance the identification of early stage of the disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The objective is to evaluate the clinical and epidemiological aspects of cardiac amyloidosis using a systematic screening of even moderate left ventricular hypertrophy, taking into account the presence of Red Flag signals. Red Flag Signals will include history or symptoms of carpal tunnel syndrome, hearing loss, chronic gastrointestinal disorders, heart failure, cervical or lumbar stenosis, or echographic abnormalities such as apical sparring, increased left ventricular filling pressure, atrio-ventricular block.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
424

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Guadeloupe
      • Basse-Terre, Guadeloupe, 97100
        • Not yet recruiting
        • Centre Hospitalier de Basse-Terre
        • Contact:
        • Principal Investigator:
          • ATALLAH André, MD
  • Martinique
      • Fort-de-France, Martinique, 97261
      • La Trinité, Martinique, 97220

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

41 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Caribbeans who the large share of populations from African origin may be associated with a high prevalence of Transthyretin amyloidosis.

In this population, diagnosis procedure will be perform to any patient with Left Ventricular Hypertrophy (LVH) with wall thickness ≥ 12 mm associated with clinical manifestations (or Red Flag signals

Description

Inclusion Criteria:

  1. Diagnosis of left ventricular hypertrophy defined by a parietal thickness (interventricular septum or posterior wall) ≥ 12 mm on the echocardiogram
  2. Age equal or greater than 45 years
  3. Current residency in Martinique, Guadeloupe or French Guyana
  4. Ability to receive and understand research information
  5. Ability to freely deliver informed written consent

Exclusion Criteria:

  1. Pregnant or breastfeeding woman
  2. Severe uncontrolled hypertension
  3. Chronic hemodialysis
  4. Person under legal protection measures (guardianship, curatorship, safeguard of justice), and person deprived of liberty

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

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Frequency of cardiac amyloidosis diagnosed according to Gillmore's algorithm
Time Frame: 3 months
frequency of cardiac amyloidosis diagnosed according to Gillmore's algorithm at the end of the diagnosis procedures, using biological (presence of cell dyscrasia), imaging (myocardial staining of bone tracers), and tissue examination (Congo Red staining) variables
3 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Frequency genotype of Transthyretin cardiac amyloidosis according to Gillmore's algorithm
Time Frame: 5 months
Evaluate the frequency of Transthyretin cardiac amyloidosis among subjects with even moderate left ventricular enlargement (wall thickness ≥ 12 mm), taking into account the presence or not of Red Flag signals
5 months
Distribution of Red Flag signals according to Transthyretin genotype
Time Frame: 5 months
To Compare the distribution of Red Flag signals between wild type TTR cardiac amyloidosis and hereditary TTR cardiac amyloidosis
5 months
Diagnosis value of any Red Flag signal.
Time Frame: 5 months
To evaluate the diagnostic performance of each of the Red Flag signals for the diagnosis of TTR cardiac amyloidosis
5 months
Elaboration of a pre-test probability score
Time Frame: 5 months
To elaborate a pre-test probability score including the Red Flag signals, adapted to the Echo Lab settings.
5 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital Center of Martinique

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Pfizer

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Doctor INAMO Jocelyn, CHU de Martinique

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.

General Publications

Helpful Links

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 30, 2020

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 30, 2021

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 1, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 1, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 7, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 17, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 16, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 18_RIPH2-22

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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