Phase 2 Transverse Myelitis Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- You are 18 years of age or older
- You have been diagnosed with your first-ever episode of optic neuritis, confirmed by an MRI scan
- Your vision changes (such as blurred vision or reduced sharpness) began within the last 10 days before joining the study — if both eyes are affected, this counts from when the first eye was affected
- Your vision in the more affected eye is 20/60 or worse, even with glasses or contacts
- You are willing and able to follow all study procedures for the full duration of the trial
- You have signed and dated a consent form agreeing to take part
- If you can become pregnant: you have had a negative pregnancy test and agree to use effective birth control during the study and for 8 weeks after the last treatment dose
- If you can father a child: you agree to use condoms or other effective contraception during the study
Who may not be able to join:
- You are currently pregnant or breastfeeding
- You have a known allergy or bad reaction to any of the study medications (efgartigimod, methylprednisolone, prednisone, or gadolinium, which is used in MRI scans)
- You had a pre-existing eye nerve condition (optic neuropathy) before this current episode
- Your optic neuritis appears to be caused by a condition other than MS, NMOSD, or MOGAD
- You are currently taking, or plan to take within 3 weeks, medications that suppress or modify your immune system
- You have already been diagnosed with MS, NMOSD, or MOGAD before this current episode
- You have another significant eye condition (such as glaucoma, cataracts, or retinal problems) that was already affecting your vision before this episode — note that being born with colour blindness does not exclude you
- There is another explanation found for your vision changes during an eye examination
- You have taken part in another clinical trial involving an experimental treatment within the past 2 months
- You cannot have an MRI scan or plasma exchange (a blood-filtering procedure used in the study)
- You have already received more than 3 days of high-dose steroids for this current episode of optic neuritis before being assigned to a treatment group in the study
- You have HIV or a condition called common variable immunodeficiency (a disorder affecting the immune system)
- You have a history of cancer, unless it has been fully treated with no signs of return for at least 1 year — some skin cancers and certain early-stage cancers may still be eligible (confirm with trial site)
- You have a significant ongoing bacterial, viral, or fungal infection that is not well controlled
- You have had major surgery within the past month, or are planning surgery during the study
- You have any other condition or circumstance that the study doctor believes could put you at risk or affect the study results (confirm with trial site)
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Recruitment Rate; Study Adherence Rate; Change in high contrast visual acuity for effect size and standard deviation estimation; Change in low contrast visual acuity for effect size and standard deviation estimation
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.