Testing Rozanolixizumab against a placebo for ocular myasthenia gravis
Official title: A Study to Evaluate the Efficacy and Safety of Rozanolixizumab in Adult Participants With Ocular Myasthenia Gravis
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Rozanolixizumab in Adult Participants With Ocular Myasthenia Gravis
- Phase 3
- 2 groups
- One site, in Montreal
- Recruiting
Interventions
- Medication
Rozanolixizumab
Rozanolixizumab will be administered by subcutaneous infusion.
- Medication
Placebo
Placebo will be administered by subcutaneous infusion.
Canadian Sites (1)
1 of 1 recruiting
- Recruiting
Mg0038 10201
Montreal
Eligibility Criteria
See who this study is looking for23 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Participant must be a minimum of 18 years of age inclusive at the time of signing the informed consent formInformed consentThe process of being told what taking part involves, then choosing freely.Read more → (ICF)
- +Participant has Myasthenia Gravis Foundation of America (MGFA) Class I with any ocular weakness at ScreeningScreeningThe checks done before joining, to see whether a study fits.Read more → through BaselineBaselineYour starting measurements, taken before treatment begins.Read more →. The participant may have weakness in muscles of eye (ie, extraocular muscles that move the eyeball, including the medial rectus, lateral rectus, superior rectus, inferior rectus, superior oblique, and inferior oblique, orbicularis oculi muscles, and levator palpebrae superioris) but must have normal strength in all other facial, bulbar, and limb muscles.
- +Study participant has been diagnosed with Ocular Myasthenia Gravis (oMG) with consistent ocular clinical features at Screening and supported by:
- +Documented presence of autoantibodies against acetylcholine receptor (AChR) or muscle-specific kinase (MuSK), OR
- +Documented absence of autoantibodies against AChR or MuSK; in this case, documented abnormal repetitive nerve stimulation (RNS) or single fiber electromyography (SFEMG) (as defined in the adjudication manual) and at least 1 of the following should be met:
- +Documented positive ice test (Ptosis recovers with the ice test \[applied 2 minutes (min) to the ptotic lid\] with \>2mm improvement)
- +History of positive edrophonium chloride (Tensilon) test (or equivalent tests used to establish oMG diagnostic as per current practice)
- +Demonstrated objective improvement in oMG signs with acetylcholinesterase inhibitor (AChEIs), plasma exchange (PLEX), intravenous immunoglobulin (IVIg), subcutaneous immunoglobulin (SCIg) or corticosteroids (CSs)
- +Participant has an Myasthenia Gravis Impairment Index (MGII) ocular score (Patient-Reported Outcome (PRO) part) ≥6 with at least 2 ocular items with a score of ≥2 at both Screening and Baseline visits.
- +Participant reported ocular symptom(s) onset \<3 years before Screening or ≥3 years provided they have demonstrated response (ie, improvement in ptosis or diploplia) to treatment (IVIg, PLEX, SCIg, pyridostigmine, and/or CSs) in the past year.
- +Participant has no pupillary abnormality except those resulting from prior localized eye disease or surgical intervention.
- +Participant who:
- +is currently receiving background treatment for oMG symptoms at the time of Screening and has been receiving treatment for oMG with a stable dose for at least 30 days prior to Screening, OR
- +is not receiving any background treatment at the time of Screening
- +Participant has a body weight ≥35kg at Baseline.
Exclusion
- −Participant has a known hypersensitivity to other anti-Fc receptor (FcRn) medications, to any components of the study medication (including the excipient polysorbate 80) or has a known history of hyperprolinemia, since L-proline is a constituent of the rozanolixizumab formulation.
- −Participant has been diagnosed with other diseases that lead to eyelid dropping, peripheral muscle weakness, or diplopia, including other autoimmune diseases that would interfere with an accurate assessment of the oMG clinical symptoms or other neurological diseases, such as congenital myasthenic syndromes, mitochondrial diseases, and muscular dystrophies.
- −Participant has active neoplastic disease or has received treatment for neoplastic disease within 5 years of study entry (except for basal or squamous cell carcinoma of the skin, carcinoma in situ of the uterine cervix, carcinoma in situ of the breast, or incidental histological findings of prostate cancer \[Tumor, Node, Metastasis (TNM) stage T1a or T1b\] that has been definitely treated with standard of careStandard of careThe treatment normally given for a condition outside a study.Read more → approaches).
- −Participant has a clinically relevant active infection (eg, tuberculosis (TB) infection) or a history of serious infection (resulting in hospitalization or requiring intravenous (iv) antibiotic treatment) within 6 weeks before the Baseline VisitBaselineYour starting measurements, taken before treatment begins.Read more →.
- −Participant has renal impairment, defined as glomerular filtration rate less than 30milliliter/min/1.73m2 at ScreeningScreeningThe checks done before joining, to see whether a study fits.Read more →.
- −Participant has been previously treated with FcRn inhibitors.
- −Participant has been treated with any of the immunosuppressive medications, biologics, or other therapies, in the specified prohibitive timeframe.
- −Participant has any clinically significant medical or psychiatric condition (including an alcohol or drug use disorder), recent major surgery (including thymectomy \[within 3 months of Screening\], solid organ, stem cell or marrow transplant), planned major surgery (including thymectomy) during study participation, and/or significant laboratory abnormality that, in the opinion of the investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more →, could jeopardize or would compromise the study participant's ability to participate in this study.
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 3Phase 3A large study comparing a treatment against the current standard.Read more → — a large study comparing this against the current standard, usually across many hospitals.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
Who receives what
There are 2 groups in this study.
Group A receives Rozanolixizumab.
Registry label: A: Rozanolixizumab
Group B, the placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group, receives Placebo.
Registry label: B: Placebo
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].label
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
You, the study team, and the people analysing the results would all be kept unaware of which group you are in until the study ends.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
One group receives a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → — a dummy treatment with no active medicine in it.
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
Who the study is looking for
The study lists a minimum age of 18 years, with no upper limit given.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 120 people.
The study is currently expected to finish around January 2029.
The main measurement is taken over: At Day 43.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Change from BaselineBaselineYour starting measurements, taken before treatment begins.Read more → at Day 43 in (Myasthenia Gravis Impairment Index) MGII ocular score (Patient-Reported Outcome (PRO) part) — measured over At Day 43.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT07463521 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About RozanolixizumabDrug
Rozanolixizumab will be administered by subcutaneous infusion.
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About PlaceboDrug
Placebo will be administered by subcutaneous infusion.
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: a minimum age of 18 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
Yes. This study includes a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group — a dummy treatment with no active medicine in it.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
You, the study team, and the people analysing the results would all be kept unaware of which group you are in until the study ends.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists a minimum age of 18 years, with no upper limit given.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: At Day 43.
The study as a whole is currently expected to finish around 2029-01-22.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 120 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 2 locations, including: Montreal, Canada; Amherst, New York, United States.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
The purpose of the study is to demonstrate the efficacy, safety and tolerability of rozanolixizumab compared with placebo in the treatment of adult study participants with Ocular Myasthenia Gravis.
Other Sites (1)
Mg0038 10106
Amherst, New York, United States
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See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.