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Acute Optic Neuritis Network: an International Study That Invesitages Subjects With a First-ever Episode of Acute Inflammation of the Optic Nerve

Study Purpose

The goal of this observational study is to longitudinally investigating subjects with inaugural acute optic neuritis (ON). The main questions it aims to answer are:

- Does the time to corticosteroid treatment affect the visual outcome at 6 months in subjects with acute multiple sclerosis (MS)-, aquaporin 4-IgG positive (AQP4-IgG+) and myelin-oligodendrocyte-glycoprotein-IgG positive (MOG-IgG+) ON? - How differ clinical, structural, and laboratory biomarkers in subjects with acute ON, including clinical isolated syndrome (CIS), MS-ON, AQP4-IgG+ON, MOG-IgG+ON and seronegative non-MS-ON? Participants will undergo.

- clinical examination, including clinical history, neurovisual and neurological tests.

- serum and cerebrospinal fluid examination.

- optical coherence tomography (OCT) - magnetic resonance imaging (MRI) - assessment of depression, pain, quality of life through validated questionnaires Researchers will compare subjects with MS-ON, AQP4-IgG+ON, MOG-IgG+ON and other ON (CIS, seronegative non-MS-ON) to detect diagnostic and predictive markers for the disease course.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Observational
Eligible Ages	18 Years and Over
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

- First-ever acute ON.

- Onset of visual symptoms within maximum of 30 days.

- Age ≥ 18 years.

- Ability to give written informed consent.

- Presence of written consent.

Exclusion Criteria:

- MRI contraindication.

- Prior demyelinating diagnosis.

- Diagnosis of other forms of optic neuropathy (hereditary, granulomatous, infectious, infiltrative, toxic) - Pregnancy at inclusion.

- Relevant other diseases that conflict with study participation according to protocol.

- Inability to cooperate

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT05605951
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Experimental and Clinical Research Center, a cooperation between the Max Delbrück Center for Molecul
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	Susanna AsseyerHadas Stiebel-Kalish
Principal Investigator Affiliation	Charite University, Berlin, GermanyRabin Medical Center, Tel Aviv
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Other
Overall Status	Recruiting
Countries	Argentina, Australia, Botswana, Brazil, Colombia, Denmark, France, Germany, India, Israel, Italy, Japan, Korea, Republic of, Spain, United Kingdom, United States, Zambia
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Demyelinating Diseases, Multiple Sclerosis, Neuromyelitis Optica Spectrum Disorder Attack, Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease, Optic Neuritis

Additional Details

The Acute Optic Neuritis Network (ACON) is a global cooperation of currently 26 academic centers longitudinally investigating subjects with inaugural acute optic neuritis (ON). ON often occurs at presentation of multiple sclerosis (MS), neuromyelitis optica spectrum disorders (NMOSD) and myelin-oligodendrocyte-glycoprotein (MOG) antibody-associated disease (MOGAD). The recommended treatment of high-dose corticosteroids for ON is based on a North-American study population, which did not address treatment timing, or antibody serostatus. The ACON study is primarily designed to investigate the effect of time to high-dose corticosteroid treatment on 6-month visual outcomes in ON. All patients presenting within 30 days of inaugural ON will be enrolled. For primary analysis, patients will subsequently be assigned either into the MS-ON, aquaporin-4-IgG positive ON (AQP4-IgG+ON) or MOG-IgG positive ON (MOG-IgG+ON) group and then further sub-stratified according to the number of days from onset of visual loss to high-dose corticosteroids. The primary outcome measure will be high-contrast best-corrected visual acuity (HC-BCVA) at 6 months. Additionally, multimodal data will be collected in subjects with any ON (CIS-ON, MS-ON, AQP4-IgG+ON or MOG-IgG+ON and seronegative non-MS-ON), excluding infectious and granulomatous ON. Secondary outcomes include: optical coherence tomography (OCT) and magnetic resonance imaging (MRI) measurements, serum and cerebrospinal fluid (CSF) biomarkers (AQP4- and MOG-IgG levels; neurofilament; glial fibrillary protein), questionnaires (headache, visual function in daily routine, depression, and quality of life) at presentation, at 6- and 12-months follow-up. Data will be collected from 22 academic hospitals from Africa, Asia, the Middle East, Europe, North America, South America, Australia and Europe. Planned recruitment consists of 100 MS-ON, 50 AQP4-IgG+ON and 50 MOG-IgG+ON. This prospective, multimodal data collection will assess the potential value of early high-dose corticosteroid treatment, investigate the interrelations between functional impairments and structural changes, and evaluate the diagnostic yield of laboratory biomarkers. This analysis has the ability to substantially improve treatment strategies and accuracy of diagnostic stratification in acute demyelinating ON.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Aurora, Colorado

Status

Not yet recruiting

Address

University of Colorado School of Medicine

Aurora, Colorado, 80045

Site Contact

Jeffrey Bennett, Prof.

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