Testing Nipocalimab against a placebo for chronic inflammatory demyelinating polyradiculoneuropathy
Official title: Efficacy and Safety Study of Nipocalimab for Adults With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
Phase 2/3, Multistage, Multicenter, Randomized, Double-Blind, Placebo-Controlled Parallel Group Withdrawal Study to Evaluate the Efficacy and Safety of Nipocalimab Administered to Adults With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
- Phase 2
- 2 groups
- One site, in Ottawa
- Recruiting
Interventions
- Medication
Nipocalimab
Nipocalimab will be administered intravenously.
- Medication
Placebo
Placebo will be administered intravenously.
Canadian Sites (1)
1 of 1 recruiting
- Recruiting
The Ottawa Hospital Ottawa NeuroMuscular Centre
Ottawa
Eligibility Criteria
See who this study is looking for12 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Inflammatory Neuropathy Cause and Treatment (INCAT) disability score between 2 and 9 at the Run-In Baseline visitBaselineYour starting measurements, taken before treatment begins.Read more → for participants entering Run-In, or Stage A Baseline visit for participants directly entering Stage A. Participants with an INCAT score of 2 at trial entry must have this score exclusively from the leg disability score
- +Adults greater than or equal to (\>=) 18 years of age at the time of consentInformed consentThe process of being told what taking part involves, then choosing freely.Read more → and as applicable, must also meet the legal age of consent in the jurisdiction in which the study is taking place
- +Diagnosed with Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) according to criteria of the European Academy of Neurology/Peripheral Nerve Society (EAN/PNS) 2021, progressing or relapsing forms. CIDP diagnosis to be adjudicated by independent committee during screening periodScreeningThe checks done before joining, to see whether a study fits.Read more →
- +Fulfilling any of the following treatment conditions: a) Currently treated with oral corticosteroids (CS) less than or equal to (\<=) 20 milligrams (mg)/day; or b) Currently treated with pulsed CS, and/or intravenous immunoglobulin (IVIg) or subcutaneous immunoglobulin (SCIg) and the participant is willing to discontinue no later than the run-in baseline visit; or c) Currently treated with oral CS greater than (\>) 20 mg/day and the participant is willing to taper to \<=20 mg/day during the run-in periodRun-in periodA short trial period before the study proper begins.Read more →; or d) Without previous treatment (treatment naive); or treatment with CS and/or IVIg or SCIg discontinued at least 3 months prior to screening (untreated)
- +Active disease as determined by CIDP Disease Activity Status (CDAS) score \>= 3
- +Other protocolProtocolThe detailed plan a study must follow.Read more →-defined inclusion criteriaInclusion criteriaThe things you must have or be for a study to consider you.Read more → will apply
Exclusion
- −Has known allergies, hypersensitivity, or intolerance to nipocalimab or its excipients
- −Has a history of severe and/or uncontrolled hepatic (example, viral/alcoholic/autoimmune hepatitis/cirrhosis and/or metabolic liver disease), gastrointestinal, renal, pulmonary, cardiovascular, psychiatric, neurological or musculoskeletal disorder, hypertension and/or any other medical or uncontrolled autoimmune disorder(s) (example, diabetes mellitus) or clinically significant abnormalities in screeningScreeningThe checks done before joining, to see whether a study fits.Read more → laboratory that, might interfere with the participants full participation in the study, or might jeopardize the safety of the participant or the validity of the study results
- −Pure sensory CIDP or chronic immune sensory polyradiculopathy (CISP) (EAN/PNS definition)
- −Any other disease that could better explain the participant's signs and symptoms, such as significant persisting neurological deficits from stroke or central nervous system (CNS) trauma or peripheral neuropathy from another cause such as connective tissue disease or systemic lupus erythematosus
- −Polyneuropathy of other causes, including the following: Multifocal motor neuropathy (MMN); Monoclonal gammopathy of uncertain significance with antimyelin associated glycoprotein (anti-MAG) immunoglobulin M (IgM) antibodies; Hereditary motor neuropathy; Hereditary neuropathy with liability to pressure palsies (HNPP); Polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin change syndromes; Lumbosacral radiculoplexus neuropathy; Polyneuropathy most likely due to diabetes mellitus; Polyneuropathy most likely due to systemic illnesses; Drug- or toxin-induced polyneuropathy Note: A concomitant polyneuropathy of other causes (example, a mild, stable diabetic polyneuropathy) is not necessarily exclusionary if chronic inflammatory demyelinating polyneuropathy (CIDP) is confirmed as the main diagnosis, as determined by the investigatorPrincipal investigatorThe doctor or researcher responsible for running the study at a site.Read more → and confirmed by the adjudication committee
- −Other protocolProtocolThe detailed plan a study must follow.Read more →-defined exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → will apply
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 2Phase 2A middle-stage study looking at what a treatment does and watching for side effects.Read more →/3 — a combined study that runs the middle stage and the large comparison stage together.
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 Nipocalimab.
Registry label: A: Nipocalimab
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.
Neither you nor the study team would know 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 201 people.
The study is currently expected to finish around July 2028.
The main measurement is taken over: Up to 52 weeks.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Stage B: Time to First Occurrence of a Relapse Event — measured over Up to 52 weeks.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT05327114 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 NipocalimabDrug
Nipocalimab will be administered intravenously.
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 intravenously.
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?
Neither you nor the study team would know 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: Up to 52 weeks.
The study as a whole is currently expected to finish around 2028-07-11.
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 201 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 4 locations, including: Ottawa, Canada; Royal Oak, Michigan, United States; New York, New York, United States; Patchogue, 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 main purpose of this study is to evaluate the safety and efficacy of nipocalimab compared to placebo in delaying relapse in adults with chronic inflammatory demyelinating polyneuropathy (CIDP) who initially respond to nipocalimab in Stage A.
Other Sites (3)
Beaumont Hospital Royal Oak
Royal Oak, Michigan, United States
The Neurological Institute of New York
New York, New York, United States
South Shore Neurologic Associates - Patchogue
Patchogue, 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.