- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06290128
A Study to Test the Effects and Safety of Riliprubart in People With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) for Which the Usual Treatments do Not Work (MOBILIZE)
A Phase 3, Doubleblind, Placebocontrolled Study Evaluating Efficacy and Safety of Riliprubart in Participants With Refractory Chronic Inflammatory Demyelinating Polyneuropathy
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Phase 3
Contacts and Locations
Study Contact
- Name: Trial Transparency email recommended (Toll free for US & Canada)
- Phone Number: option 6 800-633-1610
- Email: Contact-US@sanofi.com
Study Locations
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Alabama
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Birmingham, Alabama, United States, 35209
- Recruiting
- Alabama Neurology Associates Site Number : 8400019
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
Participants are eligible to be included in the study only if all of the following criteria apply:
- Participant must have CIDP or possible CIDP criteria, based on European Academy of Neurology (EAN)/ Peripheral Nerve Society (PNS) Task Force CIDP guidelines, second revision (2021).
- Participant must have either typical CIDP, or one of the following two CIDP variants: motor CIDP, multifocal CIDP (also known as Lewis Sumner Syndrome). Diagnosis must be confirmed by the adjudication committee.
Participant must be refractory to either immunoglobulin therapy or corticosteroid therapy, as defined below.
Immunoglobulinrefractory subgroup: Historic evidence of failure or inadequate response to immunoglobulin therapy prior to screening, defined as no clinically meaningful improvement or persistent INCAT score ≥2 after a minimum of:
- One dose of IVIg of 2 g/kg, followed by a second dose of 2 g/kg or two doses of 1 g/kg, with a separation of approximately 3 weeks between doses (each dose can be divided over 2 to 5 days), as indicated in the EAN/PNS 2021 guidelines OR
- SCIg maintenance therapy with at least 0.2 g/kg weekly for 5 weeks
- Corticosteroidrefractory subgroup:
Historic evidence of failure or inadequate response to corticosteroid therapy prior to screening, defined as no clinically meaningful improvement or persistent INCAT score ≥2 after a minimum of 12 weeks of corticosteroid therapy. Corticosteroid regimen can be daily oral prednisone/prednisolone, at least 60 mg, equivalent to methylprednisolone 48 mg, tapered over 6 to 8 months, or alternative regimens, e.g. pulsed high-dose corticosteroid treatment (40 mg/day oral dexamethasone or 500 mg/day IV methylprednisolone, each daily for 4 days per month for 6 months), as indicated in the EAN/PNS 2021 guidelines A clinically meaningful improvement is defined as one or more of the following:
- A ≥1 point decrease in adjusted INCAT disability score
- An increase in IRODS total score ≥4 points
- An increase in MRC Sum score ≥3 points
- An improvement in hand grip strength of ≥8 kilopascals or
Equivalent improvement based on information from medical records and per the Investigator's judgment
-Participant has an adjusted INCAT score of 2 to 9
(a score of 2 should be exclusively from the leg disability component of INCAT).
- Any allowed immunosuppressant drugs (azathioprine, cyclosporine, or mycophenolate mofetil) have been taken for ≥6 months at a stable dose for ≥3 months prior to Screening
- Participant may be receiving low-dose oral corticosteroids (≤20 mg/day of prednisone [or equivalent dose for other oral corticosteroids]), but only if taken at a stable dose for ≥3 months prior to Screening
- Participant must have active disease, defined by a CIDP disease activity score (CDAS) of ≥ 2 points at Screening
- Participant must have documented vaccinations against encapsulated bacterial pathogens given within 5 years of screening or initiated a minimum of 14 days prior to first dose of study intervention
- All participants must agree to use contraception methods during and after the study as required.
- Contraceptive use by men and women participating in the study should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
- Male participants are eligible to participate if they agree to the following during the study intervention period and for at least 55 weeks after the last dose of study medication:
- Refrain from donating or cryopreserving sperm PLUS
- Be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent OR
Must agree to use contraception/barrier as detailed below:
---- A male condom and an additional highly effective contraceptive method as described in the protocol.
-- A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies:
- Is a woman of nonchildbearing potential (WONCBP) as defined by the protocol OR
- Is a woman of childbearing potential (WOCBP) and agrees to use a contraceptive method that is highly effective (with a failure rate of <1% per year), preferably with low user dependency, as described in Appendix 10.4 Contraception and barrier guidance during the study intervention period (to be effective before starting the intervention) and for at least 55 weeks after the last administration of study intervention and agrees not to donate or cryopreserve eggs (ova, oocytes) for the purpose of reproduction during this period.
Exclusion Criteria: Participants are excluded from the study if any of the following criteria apply:
- Polyneuropathy of other causes, including but not limited to: hereditary demyelinating neuropathies, neuropathies secondary to infection or systemic disease, diabetic neuropathy, drug- or toxin-induced neuropathies, multifocal motor neuropathy, polyneuropathy related to Immunoglobulin M (IgM) monoclonal gammopathy, POEMS syndrome, and lumbosacral radiculoplexus neuropathy.
- Sensory CIDP, Distal CIDP and focal CIDP variants.
- Any other neurological or systemic disease that can cause symptoms and signs interfering with treatment or outcome assessments
- Poorly controlled diabetes (HbA1c >7%)
- Serious infections requiring hospitalization within 30 days prior to Screening and any active infection requiring treatment during screening or presence of a condition that may predispose the participant to increased risk of infection (eg, medical history such as known immunodeficiency or history of recurrent infections)
- Clinical diagnosis of Systemic Lupus Erythematosus (SLE)
- Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the Investigator, contraindicates participation in the study. Specifically, history of any hypersensitivity reaction to riliprubart or its components or of a severe allergic or anaphylactic reaction to any humanized or murine monoclonal antibody.
- Any other clinically meaningful medical history or ongoing medical condition (as determined by the Investigator at Screening) that might impact benefitrisk assessment, jeopardize the safety of the participant, or compromise the quality of the data collected in this study; or history or presence of other significant concomitant illness that would adversely affect participation in this study, per Investigator's judgment.
- Documented history of attempted suicide over the 6 months prior to the Screening visit, presence of suicidal ideation of category 4 or 5 on CSSRS during screening, OR if in the Investigator's judgment, the participant is at risk for a suicide attempt.
- Evidence of CIDP worsening within the 6 weeks following a prior vaccination that, in the opinion of the Investigator, constituted a relapse
- Recent or planned major surgery that could confound the results of the trial or put the participant at undue risk
- Participant has received immunoglobulins (IVIg or SCIg) within 8 weeks prior to Screening
- Treatment with plasma exchange within the 8 weeks prior to Screening
- Prior treatment with riliprubart
- Prior treatment with (any time) with highly immunosuppressive/chemotherapeutic medications with sustained effects, eg, mitoxantrone, alemtuzumab, cladribine
- Prior treatment (any time) with total lymphoid irradiation or bone marrow transplantation
- Prior treatment with Bcelldepleting agents such as rituximab within 6 months prior to riliprubart dosing, or before Bcell counts return to normal levels, whichever is longer
- Use of any specific complement system inhibitor (eg, eculizumab) within 12 weeks or 5 times the halflife of the product, whichever is longer, prior to Screening
- Treatment within 6 months prior to dosing with immunosuppressive/ chemotherapeutic medications, such as cyclophosphamide, methotrexate, tacrolimus, interferon, or tumor necrosis factor (TNF)α inhibitors. Certain immunosuppressants commonly used in CIDP (azathioprine, cyclosporine, or mycophenolate mofetil) are allowed, as indicated under inclusion criterion.
- Any vaccination received within 28 days prior to dosing (with few exceptions to be confirmed at screening)
- Participation in another clinical trial with an investigational drug or receipt of an investigational product within 12 weeks or 5 times the halflife of the product, whichever is longer, prior to Screening
- Any screening laboratory values outside normal limits or abnormal ECG considered in the Investigator's judgment to be clinically significant in the context of this trial.
Positive result of any of the following tests:
- hepatitis B surface antigen (HBsAg)
- antihepatitis B core antibodies (anti-HBc Ab) (unless anti-hepatitis B surface antibodies [antiHBs Ab] are also positive, indicating natural immunity)
- antihepatitis C virus (antiHCV) antibodies
- antihuman immunodeficiency virus 1 and 2 (antiHIV1 and antiHIV2) antibodies
- Pregnancy, defined as a positive result of a highly sensitive urine or serum pregnancy test, or lactation
- Accommodation in an institution because of regulatory or legal order; eg, imprisoned or legally institutionalized
- Participant not suitable for participation, whatever the reason, as judged by the Investigator, including medical or clinical conditions, or potential risk for noncompliance to study procedures
- Participants are employees at the clinical study site or other individuals directly involved in the conduct of the study, or immediate family member of such individuals
- Any country related specific regulation that would prevent the participant from entering the study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Riliprubart Arm
Riliprubart for 24 weeks followed by open-label extension phase with riliprubart for 24 weeks
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Pharmaceutical form:Solution-Route of administration:IV Infusion
Other Names:
Pharmaceutical form:Solution-Route of administration:IV Infusion
Pharmaceutical form:Solution-Route of administration:SC Injection
Other Names:
Pharmaceutical form:Solution-Route of administration:SC Injection
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Placebo Comparator: Placebo Arm
Placebo for 24 weeks followed by open-label extension phase with riliprubart for 24 weeks
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Pharmaceutical form:Solution-Route of administration:IV Infusion
Other Names:
Pharmaceutical form:Solution-Route of administration:IV Infusion
Pharmaceutical form:Solution-Route of administration:SC Injection
Other Names:
Pharmaceutical form:Solution-Route of administration:SC Injection
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of participants refractory to standard of care (SOC) experiencing a response
Time Frame: Baseline to week 24
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A response is defined as a decrease of ≥1 point from baseline in adjusted INCAT disability score at Week 24.
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Baseline to week 24
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Percentage of participants randomized to riliprubart with lasting response
Time Frame: Week 24 to week 48
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Lasting response is defined as no increase in adjusted INCAT disability score after experiencing a response in the first 24 weeks.
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Week 24 to week 48
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Percentage of participants randomized to placebo who experience a response
Time Frame: Week 24 to week 48
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A response is defined as a decrease of ≥1 point in adjusted INCAT disability score from Week 24 to Week 48.
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Week 24 to week 48
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Percentage of participants randomized to riliprubart who experience a response
Time Frame: Week 24 to week 48
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A response is defined as a decrease of ≥1 point in adjusted INCAT disability score without prior response in first 24 weeks, from Week 24 to Week 48.
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Week 24 to week 48
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in Inflammatory Raschbuilt Overall Disability Scale (IRODS) score
Time Frame: Baseline to week 24
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Baseline to week 24
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Change from baseline in adjusted inflammatory neuropathy cause and treatment (INCAT) disability score
Time Frame: Baseline to week 24
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Baseline to week 24
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Change from baseline in grip strength (kilopascals; dominant hand)
Time Frame: Baseline to week 24
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Baseline to week 24
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Change from baseline in Medical Research Council Sum Score (MRCSS)
Time Frame: Baseline to week 24
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Baseline to week 24
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Percentage of participants refractory to immunoglobulins experiencing a response
Time Frame: Baseline to week 24
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A response is defined as a decrease of ≥1 point from baseline in adjusted INCAT disability score at Week 24
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Baseline to week 24
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Change from baseline in the EuroQol 5 Dimension, 5Level Health Scale (EQ5D5L)
Time Frame: Baseline to week 24
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Baseline to week 24
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Change from baseline in the Rasch-built modified fatigue severity scale (RT-FSS)
Time Frame: Baseline to week 24
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Baseline to week 24
|
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Number of participants with treatmentemergent adverse events (TEAEs), including serious adverse events (SAEs) and adverse events of special interest (AESIs)
Time Frame: Baseline to week 24
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Baseline to week 24
|
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Incidence and titer of anti-riliprubart antibodies (ADA)
Time Frame: Baseline to week 24
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Baseline to week 24
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Number of participants with TEAEs, including Serious Adverse Events (SAEs) and Adverse Events of Special Interest (AESIs)
Time Frame: Week 24 to week 109
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Week 24 to week 109
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Incidence and titer of anti-riliprubart antibodies
Time Frame: Week 24 to week 109
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Week 24 to week 109
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Change from baseline in I RODS score
Time Frame: Baseline to week 48
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Baseline to week 48
|
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Change from baseline in adjusted INCAT score
Time Frame: Baseline to week 48
|
Baseline to week 48
|
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Change from baseline in grip strength (kilopascals; dominant hand)
Time Frame: Baseline to week 48
|
Baseline to week 48
|
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Change from baseline in MRC-SS
Time Frame: Baseline to week 48
|
Baseline to week 48
|
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Change from baseline in EQ-5D-5L score
Time Frame: Baseline to week 48
|
Baseline to week 48
|
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Change from baseline in RT-FSS
Time Frame: Baseline to week 48
|
Baseline to week 48
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Pathologic Processes
- Nervous System Diseases
- Immune System Diseases
- Autoimmune Diseases of the Nervous System
- Demyelinating Diseases
- Autoimmune Diseases
- Disease Attributes
- Neuromuscular Diseases
- Peripheral Nervous System Diseases
- Chronic Disease
- Polyneuropathies
- Polyradiculoneuropathy
- Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Other Study ID Numbers
- EFC17236
- U1111-1295-5755 (Registry Identifier: ICTRP)
- 2023-506503-26 (Registry Identifier: CTIS)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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Clinical Trials on Riliprubart
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SanofiNot yet recruiting