Evaluation of the Reproducibility of the Measurement of the QSM Signal (Quantitative Susceptibility Mapping) (ERESI)

December 12, 2023 updated by: Fondation Ophtalmologique Adolphe de Rothschild

Many central nervous system pathologies have an inflammatory component, often associated with an accumulation of disability and more severe tissue damage.

In multiple sclerosis, the inflammatory process is in part characterized by the activation of microglia, an entity of the innate inflammatory system, as well as a breakdown of the blood-brain barrier. During inflammation, activated microglia may contain high levels of iron, characterizing its activated state.

Study Overview

Status

Status

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

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

Several MRI imaging tools are known to be highly sensitive to tissue iron content and have become the method of choice to study brain iron, including in a pathological context such as multiple sclerosis.

Quantitative magnetic susceptibility mapping (QSM) is an emerging technique to access non-invasively the iron content in brain tissue. For some years this technique has been used in MS to characterize white matter lesions. Changes in the QSM value of the lesions have made it possible to describe lesions surrounded by an iron ring. Susceptibility MRI has also been proposed to highlight lesions according to their chronology.

The study of reproducibility is of particular importance when using QSM in longitudinal studies or in therapeutic trials. A better understanding of intra- and inter-subject variation in QSM measurements may also allow a more accurate estimate of the number of subjects needed to detect changes in studies. In order to be widely applied to various pathologies, it is therefore necessary to evaluate its reproducibility by estimating the intra- and inter-subject variability for future dissemination in clinical and pharmaceutical studies.

In this project, the invstigators propose to study the reproducibility of QSM acquisition.

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 (Actual)

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.
18

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

  • France
      • Paris, France, 75019
        • Hhopital fondation adolphe de rothschild

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

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

Participation in the study will be offered to patients with MS (the primary indication for which QSM is studied) as well as to healthy volunteers among staff.

Description

Inclusion Criteria:

  • Subject over 18 years old
  • Consent to participate in the study
  • Beneficiary of a social protection scheme
  • Healthy volunteers: Consent to be informed if an unexpected anomaly is revealed by the imagery.
  • Patients: With MS defined according to McDonald's revised criteria for spatial dissemination and temporal or clinical or radiological temporal dissemination and who should benefit from MRI in the imaging department

Exclusion Criteria:

  • Absolute contraindication to 3T MRI
  • Realization of an injected MRI (gadolinium) in the previous year
  • Patient benefiting from a legal protection measure
  • Pregnant or breastfeeding woman
  • For healthy volunteers: History of neurological pathology or neurological pathology in progress

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-Control
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
healthy volunteers
Other: MRI
Those included will perform an MRI without injection to obtain the QSM then they will exit the machine and reinstall themselves there to perform the second measurement. They will then change the MRI machine to perform a third measurement
group case
Other: MRI
Those included will perform an MRI without injection to obtain the QSM then they will exit the machine and reinstall themselves there to perform the second measurement. They will then change the MRI machine to perform a third measurement

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
Time Frame
QSM signal difference at two acquisition times in white matter, on an individual scale
Time Frame: baseline
baseline

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.
Fondation Ophtalmologique Adolphe de Rothschild

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.
December 17, 2020

Primary Completion (Actual)

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.
June 16, 2022

Study Completion (Actual)

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.
June 16, 2022

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 7, 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 7, 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 10, 2020

Study Record Updates

Last Update Posted (Estimated)

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.
December 18, 2023

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.
December 12, 2023

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.
December 1, 2022

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.
  • JSY_2020_25

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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