Testing Telitacicept against a placebo for generalized myasthenia gravis
Official title: A Study of Telitacicept for the Treatment of Generalized Myasthenia Gravis (UPSTREAM MG)
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study With an Open-label Extension Period to Evaluate the Efficacy and Safety of Telitacicept in Patients With Generalized Myasthenia Gravis
- Phase 3
- 2 groups
- Sites in London and Toronto
- Recruiting
Interventions
- Biological therapy
Telitacicept
Subcutaneous injection
- Medication
Placebo
Subcutaneous injection
Canadian Sites (2)
1 of 2 recruiting
- Recruiting
University Hospital - London Health Sciences Centre
London, Ontario
- Not yet recruiting
Toronto General Hospital
Toronto, Ontario
Eligibility Criteria
See who this study is looking for11 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Male or female patient aged ≥18 years at screeningScreeningThe checks done before joining, to see whether a study fits.Read more →.
- +Patients have prior confirmed diagnosis of gMG with generalized muscle weakness (typical pattern of weakness meeting the clinical criteria for diagnosis of MG as defined by the Myasthenia Gravis Foundation of America (MGFA) clinical classification II-IV.
- +Patients have positive antibodies against AChR or MuSK at screening.
- +MG-ADL score ≥6 points at screening and baselineBaselineYour starting measurements, taken before treatment begins.Read more → with ocular-related score \<50% of the total score.
- +QMG score ≥8 points, and ≥ 4 items score at least 2 points at screening and baseline.
Exclusion
- −Patients having thymoma within 5 years or received thymectomy ≤6 months prior to screeningScreeningThe checks done before joining, to see whether a study fits.Read more →. Patients with thymoma diagnosed 3-5 years prior to screening may be eligible if thymoma was at a localized stage and definitively treated with complete surgical resection.
- −Patients have been diagnosed with any other autoimmune disease which can potentially pose a safety or efficacy confounding risk.
- −Patients having acute or chronic infection.
- −Patients having current or history of primary immunodeficiency.
- −Patients having history of malignancy within the last 5 years.
- −Patient having prior or continuing diagnosis of serious cardiovascular, liver, kidney, respiratory system, endocrine or hematologic disease.
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 Telitacicept.
Registry label: A: Telitacicept
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, the people giving the treatment, 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 180 people.
The study is currently expected to finish around January 2029.
The main measurement is taken over: Week 24.
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 → in Myasthenia Gravis-Activities of Daily Living (MG-ADL) score at Week 24 — measured over Week 24.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT06456580 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 TelitaciceptBiological
Subcutaneous injection
From the trial registry — its own words, unedited.
What a biological is here: A treatment made from or by living systems — such as antibodies, vaccines, or cell-based therapies.
Read the full explanation → · in clinical review
About PlaceboDrug
Subcutaneous injection
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, the people giving the treatment, 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: Week 24.
The study as a whole is currently expected to finish around 2029-01.
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 180 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 6 locations, including: London, Ontario, Canada; Toronto, Ontario, Canada; East Lansing, Michigan, United States; Grand Rapids, Michigan, United States; New York, New York, United States; The Bronx, 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 this study is to evaluate the efficacy and safety of telitacicept in the treatment of generalized myasthenia gravis.
Other Sites (5)
Michigan State University Clinical Center
East Lansing, Michigan, United States
Trinity Health - Grand Rapids Hospital
Grand Rapids, Michigan, United States
Hospital for Special Surgery
New York, New York, United States
Mount Sinai Health System
New York, New York, United States
Montefiore Medical Center
The Bronx, 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.