NCT04448938

Brief Summary

When patients arrive in the waiting room of the MRI department, patients will be given the briefing note explaining the purpose of the study and how it is going. During the consultation, the radiologist will check the inclusion and non-inclusion criteria, and will take the time to answer all of the patient's questions about the study. If the patient agrees to participate in the research, the investigating doctor will obtain his consent. The MRI examination will be performed on a 3T multi-parametric MRI. Compared to the standard protocol, patients will benefit from an additional sequence of f-mRI, called resting state, and performed before injection of gadolinium contrast agent. A consultation with an ophthalmologist will also be carried out the same day, at the Adolphe de Rothschild Foundation. During this visit, an OCT examination (optical coherence tomography), a visual field as well as the measurement of visual acuity will be carried out, in accordance with the treatment usually practiced at the Adolphe de Rothschild Foundation. The subjects of the control group who agreed to participate will benefit from an MRI examination which will include, in addition to the sequences planned for these patients according to their indications, the two non-injected sequences which will be performed on patients with suspected NO. The possible existence of visual problems in the subjects of the control group will also be asked to them by interrogation. No eye exams or follow-up visits are planned, and control group participation will end after the MRI scan. Patients with NO will be seen in consultation by an ophthalmologist during a follow-up visit approximately 6 months after diagnosis. During this consultation, an OCT, a visual field and the measurement of visual acuity will be performed. This visit and the examinations carried out correspond to the usual care of patients suffering from NO and followed at the Adolphe de Rothschild Foundation Hospital.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
11mo left

Started Dec 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress87%
Dec 2020Jun 2027

First Submitted

Initial submission to the registry

June 23, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 26, 2020

Completed
6 months until next milestone

Study Start

First participant enrolled

December 17, 2020

Completed
6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

January 5, 2026

Status Verified

December 1, 2025

Enrollment Period

6 years

First QC Date

June 23, 2020

Last Update Submit

December 30, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • The ophthalmological functional recovery will be assessed by measuring the low contrast visual acuity on the Early Treatment Diabetic Retinopathy study scale (ETDRS scale).

    ETDRS charts presents a serie of 70 letters. The visual acuity letter score is equal to the total number of letters read correctly at 4.0 m. The score ranged to 20/10 (best visual acuity) to 20/20 000 (worst visual acuity).

    6 months

Study Arms (2)

optic neuritis

Other: MRIOther: visual acuity

control

Other: MRI

Interventions

MRIOTHER

The MRI examination will be performed on a 3T multi-parametric MRI. Compared to the standard protocol, patients will benefit from an additional sequence of f-mRI, called resting state, and performed before injection of gadolinium contrast agent. A consultation with an ophthalmologist will also be carried out the same day, at the Adolphe de Rothschild Foundation. The subjects of the control group who agreed to participate will benefit from an MRI examination which will include, in addition to the sequences planned for these patients according to their indications, the two non-injected sequences which will be performed on patients with suspected NO.

controloptic neuritis

Patients with NO will be seen in consultation by an ophthalmologist during a follow-up visit approximately 6 months after diagnosis. During this consultation, an OCT, a visual field and the measurement of visual acuity will be performed. This visit and the examinations carried out correspond to the usual care of patients suffering from NO and followed at the Adolphe de Rothschild Foundation Hospital

optic neuritis

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with clinical suspicion of NO who must perform an MRI for the diagnosis of NO. A control group will also be set up to compare the visual functional networks of patients with NO with those of a sample of subjects free from NO.

You may qualify if:

  • Patients over 18 years of age
  • Clinical suspicion of optic neuritis
  • Benefiting from an MRI for exploration of optic neuritis
  • Affiliate or beneficiary of a social security scheme
  • Having received informed information about the study and having given their express consent to participate in the study

You may not qualify if:

  • Contraindication to absolute or relative MRI (in particular, pregnant or breastfeeding women)
  • History of amblyopia
  • Any pre-existing pathology leading to a decrease in vision (e.g. retinitis pigmentosa, AMD, etc.)
  • Patient benefiting from a legal protection measure

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fondation A De Rothschild

Paris, PARIS, 75019, France

RECRUITING

MeSH Terms

Conditions

Neuritis

Interventions

Visual Acuity

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

Vision TestsDiagnostic Techniques, OphthalmologicalDiagnostic Techniques and ProceduresDiagnosisOcular Physiological Phenomena

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
NETWORK
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 23, 2020

First Posted

June 26, 2020

Study Start

December 17, 2020

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

June 1, 2027

Last Updated

January 5, 2026

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations