A Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Crovalimab in Participants With Guillain-Barré Syndrome (GBS)
Primary Purpose
Guillain-Barré Syndrome
Status
Withdrawn
Phase
Phase 3
Locations
Study Type
Interventional
Intervention
Crovalimab
Placebo
Intravenous immunoglobulin therapy
Sponsored by
About this trial
This is an interventional treatment trial for Guillain-Barré Syndrome
Eligibility Criteria
Inclusion Criteria:
- Body weight >= 40 kg at screening
- Confirmed diagnosis of GBS according to National Institute of Neurological Disorders and Stroke (NINDS) classification system
- Onset of weakness due to GBS within 2 weeks before randomization
- Able to start the first dose of blinded study drug within 2 weeks of onset of weakness
- Able to climb a flight of stairs prior to GBS
- Unable to walk independently for >=10 meters (FG >=3) with deteriorating weakness as per investigator judgment, or FG 4 or FG 5 on the GBS-DS. These criteria must be satisfied during screening.
- Undergoing or starting IVIg treatment (400 mg/kg QD for 5 days) prior to first blinded study drug administration. Participants must be able to receive the first dose of blinded study drug before the final dose of IVIg during the 5-day period of IVIg treatment.
- A record of vaccination (<=3 years) against Neisseria meningitidis, Haemophilus influenzae type B, and Streptococcus pneumonia prior to initiation of blinded study drug, in accordance with most current local guidelines as applicable for patients with complement deficiency.
- Adequate hepatic and renal function
- For female participants of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception during the treatment period and for up to 11 months after the final dose of study treatment.
Exclusion Criteria:
- Clear clinical and historical evidence of significant or disabling acute or chronic peripheral neuropathy of alternative etiology, chronic inflammatory demyelinating polyneuropathy, severe vitamin deficiency, porphyria, or diagnosis of Charcot Marie Tooth disease or other genetic neuropathy
- History of requiring a permanent aid to walk prior to GBS
- Treatment with plasmapheresis or PLEX after GBS diagnosis, or a plan to receive this treatment
- Receipt of systemic immunosuppressive treatment within 4 weeks prior to randomization
- Known or suspected hereditary complement deficiency
- Known or suspected immune deficiency
- Recent use (up to five half-lives) of treatment with complement inhibitors (e.g., 10 weeks for eculizumab, 41 weeks for ravulizumab)
- History of Neisseria meningitidis infection within 12 months prior to screening and up to first blinded study drug administration (Day 1)
- Contraindication that would prevent use of any class of antibiotics as Neisseria meningitides prophylaxis
- Immunization with a live attenuated vaccine within 1 month before first blinded study drug administration (Day 1)
- Participants who have been partially or fully vaccinated against SARS-CoV-2 with a locally approved vaccine are eligible to be enrolled in the study, 3 days or longer after inoculation.
- Recent SARS-CoV-2 infection (defined by a positive PCR test within the 2-week period prior to screening), or ongoing symptoms of active COVID-19
- Any systemic bacterial, viral, or fungal infection ongoing at screening and up to the first blinded study drug administration (Day 1) which, in the investigators' judgment, is active and could potentially be worsened by immunosuppression
- Current hepatitis B, hepatitis C, or HIV infection
- History of malignancy within 5 years prior to screening and up to the first blinded study drug administration (Day 1)
- History of hypersensitivity, allergic, or anaphylactic reactions to crovalimab or IVIg, including hypersensitivity to human, humanized, or murine monoclonal antibodies, or known hypersensitivity to any constituent of the products
- For participants with prior exposure to anti-CD20 agents, most recent anti-CD20 treatment within 6 months prior to screening
- Substance abuse within 12 months prior to screening, in the investigator's judgment
- Active suicidal ideation within 6 months prior to screening or history of suicide attempt within 3 years prior to screening
- Concurrent disease, treatment, procedure or surgery, or abnormality in clinical laboratory tests that could interfere with the conduct of the study, may pose any additional risk for the patient, or would, in the opinion of the investigator, preclude the patient's safe participation in and completion of the study
- Participation in another interventional treatment study with an investigational agent or use of any experimental therapy within 28 days of screening or within five half-lives of that investigational product, whichever is longer
- Splenectomy <= 6 months prior to screening
- Selective IgA deficiency with development of antibodies to IgA
- Only applicable for participants receiving proline-containing IVIg products: History or ongoing hyperprolinaemia type I or II at screening
- Only applicable for participants receiving sucrose/glucose/maltose-containing IVIg products: History of or ongoing diabetes mellitus or use of concomitant nephrotoxic medications
- Pregnancy or breastfeeding, or intention of becoming pregnant during the study or within 11 months after the final dose of crovalimab.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Placebo Comparator
Arm Label
Crovalimab
Placebo
Arm Description
Participants will receive a single intravenous (IV) infusion of crovalimab on Day 1 based on body weight, followed by crovalimab subcutaneous (SC) injection on Days 2, 8, 15, and 22 for a total of 4 weeks. Additionally, intravenous immunoglobulin (IVIg) background therapy will be administered once a day (QD) for 5 days.
Participants will receive a single IV infusion of placebo on Day 1 based on body weight, followed by placebo SC injections on Days 2, 8, 15, and 22 for a total of 4 weeks. Additionally, IVIg background therapy will be administered QD for 5 days.
Outcomes
Primary Outcome Measures
Percentage of Participants who Reach Hughes Functional Grade (FG) Score ≤ 1 on the Guillain-Barré Syndrome Disability Scale (GBS-DS) at Week 24
The Guillain-Barré Syndrome disability score (GBS DS) is used to assess the degree of functional disability of study participants. The scale consists of seven grades of functional disability ranging from 0 (healthy with no symptoms attributable to GBS) to 6 (death).
Secondary Outcome Measures
Time to Recover Independent Walking Assessed Using the 10-Meter Walk Test (10-MW)
Defined as time from randomization to the first time point at which the participant is able to walk independently, assessed using the 10-MWT.
Functional Outcome on GBS-DS at Week 8
The Guillain-Barré Syndrome disability score (GBS DS) is used to assess the degree of functional disability of study participants. The scale consists of seven grades of functional disability ranging from 0 (healthy with no symptoms attributable to GBS) to 6 (death).
Percentage of Inflammatory Rasch-Built Overall Disability Scale (I-RODS) Responders at Week 24
Defined as a participant who is able to perform all activities assessed by the I-RODS with or without some difficulties (graded 1 or 2). I-RODs is a 24-item scale to rate a participant's general ability to function and complete activities of daily living. The items range in difficulty from very easy ("reading a newspaper/book" and "eating") to very difficult ("standing for hours" and "running"). The participant assigns a score between 0 and 3 (0: not possible, 1: possible with difficulty, 2: possible without any difficulty, 3: unable to perform before GBS [option 3 only available at the baseline visit]) to each item.
Mean Post-Recovery Time
Defined as the time from reaching FG ≤ 1 for the first time after randomization to Week 24
Duration of Ventilator Support
Percentage of Participants with Treatment Emergent Adverse Events
Adverse events severity was determined according to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE v5.0) grading
Percentage of Participants with Treatment Emergent Adverse Events Leading to Study Drug Discontinuation
Percentage of Participants with Anti-Drug Antibodies to Crovalimab
Serum Concentrations of Crovalimab
Full Information
NCT ID
NCT05494619
First Posted
August 8, 2022
Last Updated
December 14, 2022
Sponsor
Hoffmann-La Roche
Collaborators
Chugai Pharmaceutical Co., Ltd. (Sponsor in Taiwan and Japan)
1. Study Identification
Unique Protocol Identification Number
NCT05494619
Brief Title
A Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Crovalimab in Participants With Guillain-Barré Syndrome (GBS)
Official Title
A Phase III Randomized, Double-Blind, Placebo-Controlled, Multi-Center Study to Evaluate the Efficacy, Safety, Pharmacokinetics and Pharmacodynamics of Crovalimab in Patients With Guillain-Barré Syndrome
Study Type
Interventional
2. Study Status
Record Verification Date
December 2022
Overall Recruitment Status
Withdrawn
Why Stopped
This study has been withdrawn due to an internal decision. The decision was not due to any safety concerns with study drug.
Study Start Date
November 30, 2022 (Anticipated)
Primary Completion Date
March 19, 2026 (Anticipated)
Study Completion Date
September 30, 2026 (Anticipated)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Hoffmann-La Roche
Collaborators
Chugai Pharmaceutical Co., Ltd. (Sponsor in Taiwan and Japan)
4. Oversight
Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
5. Study Description
Brief Summary
The purpose of this study is to evaluate the efficacy, safety, pharmacokinetics, and pharmacodynamics of crovalimab compared with placebo as an add-on therapy to intravenous immunoglobulin (IVIg) in participants with severe GBS.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Guillain-Barré Syndrome
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
0 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Crovalimab
Arm Type
Experimental
Arm Description
Participants will receive a single intravenous (IV) infusion of crovalimab on Day 1 based on body weight, followed by crovalimab subcutaneous (SC) injection on Days 2, 8, 15, and 22 for a total of 4 weeks. Additionally, intravenous immunoglobulin (IVIg) background therapy will be administered once a day (QD) for 5 days.
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Participants will receive a single IV infusion of placebo on Day 1 based on body weight, followed by placebo SC injections on Days 2, 8, 15, and 22 for a total of 4 weeks. Additionally, IVIg background therapy will be administered QD for 5 days.
Intervention Type
Drug
Intervention Name(s)
Crovalimab
Intervention Description
Crovalimab will be administered at a dose of 1000 milligrams (mg) IV (for participants with body weight ≥ 40 kilograms (kg) and <100 kg) or 1500 mg IV (for participants with body weight ≥ 100 kg) on Day 1, followed by crovalimab 340 mg SC injections on Days 2, 8, 15 and 22 in all participants.
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Placebo will be administered IV on Day 1 at a dose of 1000 mg for participants with body weight ≥ 40 kg to < 100 kg, or 1500 mg for participants with body weight ≥ 100 kg. It will be administered SC on Days 2, 8, 15, and 22 at a dose 340 mg in all participants.
Intervention Type
Drug
Intervention Name(s)
Intravenous immunoglobulin therapy
Intervention Description
All participants will receive background therapy of IVIg at a dose of 400 milligrams/kilograms (mg/kg) QD for 5 days.
Primary Outcome Measure Information:
Title
Percentage of Participants who Reach Hughes Functional Grade (FG) Score ≤ 1 on the Guillain-Barré Syndrome Disability Scale (GBS-DS) at Week 24
Description
The Guillain-Barré Syndrome disability score (GBS DS) is used to assess the degree of functional disability of study participants. The scale consists of seven grades of functional disability ranging from 0 (healthy with no symptoms attributable to GBS) to 6 (death).
Time Frame
Week 24
Secondary Outcome Measure Information:
Title
Time to Recover Independent Walking Assessed Using the 10-Meter Walk Test (10-MW)
Description
Defined as time from randomization to the first time point at which the participant is able to walk independently, assessed using the 10-MWT.
Time Frame
Up to approximately 52 weeks
Title
Functional Outcome on GBS-DS at Week 8
Description
The Guillain-Barré Syndrome disability score (GBS DS) is used to assess the degree of functional disability of study participants. The scale consists of seven grades of functional disability ranging from 0 (healthy with no symptoms attributable to GBS) to 6 (death).
Time Frame
Week 8
Title
Percentage of Inflammatory Rasch-Built Overall Disability Scale (I-RODS) Responders at Week 24
Description
Defined as a participant who is able to perform all activities assessed by the I-RODS with or without some difficulties (graded 1 or 2). I-RODs is a 24-item scale to rate a participant's general ability to function and complete activities of daily living. The items range in difficulty from very easy ("reading a newspaper/book" and "eating") to very difficult ("standing for hours" and "running"). The participant assigns a score between 0 and 3 (0: not possible, 1: possible with difficulty, 2: possible without any difficulty, 3: unable to perform before GBS [option 3 only available at the baseline visit]) to each item.
Time Frame
Week 24
Title
Mean Post-Recovery Time
Description
Defined as the time from reaching FG ≤ 1 for the first time after randomization to Week 24
Time Frame
Randomization to Week 24
Title
Duration of Ventilator Support
Time Frame
Randomization to Week 24
Title
Percentage of Participants with Treatment Emergent Adverse Events
Description
Adverse events severity was determined according to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE v5.0) grading
Time Frame
Up to approximately 52 weeks
Title
Percentage of Participants with Treatment Emergent Adverse Events Leading to Study Drug Discontinuation
Time Frame
Up to approximately 52 weeks
Title
Percentage of Participants with Anti-Drug Antibodies to Crovalimab
Time Frame
Up to approximately 52 weeks
Title
Serum Concentrations of Crovalimab
Time Frame
From Day 1 up to Week 52
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Body weight >= 40 kg at screening
Confirmed diagnosis of GBS according to National Institute of Neurological Disorders and Stroke (NINDS) classification system
Onset of weakness due to GBS within 2 weeks before randomization
Able to start the first dose of blinded study drug within 2 weeks of onset of weakness
Able to climb a flight of stairs prior to GBS
Unable to walk independently for >=10 meters (FG >=3) with deteriorating weakness as per investigator judgment, or FG 4 or FG 5 on the GBS-DS. These criteria must be satisfied during screening.
Undergoing or starting IVIg treatment (400 mg/kg QD for 5 days) prior to first blinded study drug administration. Participants must be able to receive the first dose of blinded study drug before the final dose of IVIg during the 5-day period of IVIg treatment.
A record of vaccination (<=3 years) against Neisseria meningitidis, Haemophilus influenzae type B, and Streptococcus pneumonia prior to initiation of blinded study drug, in accordance with most current local guidelines as applicable for patients with complement deficiency.
Adequate hepatic and renal function
For female participants of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception during the treatment period and for up to 11 months after the final dose of study treatment.
Exclusion Criteria:
Clear clinical and historical evidence of significant or disabling acute or chronic peripheral neuropathy of alternative etiology, chronic inflammatory demyelinating polyneuropathy, severe vitamin deficiency, porphyria, or diagnosis of Charcot Marie Tooth disease or other genetic neuropathy
History of requiring a permanent aid to walk prior to GBS
Treatment with plasmapheresis or PLEX after GBS diagnosis, or a plan to receive this treatment
Receipt of systemic immunosuppressive treatment within 4 weeks prior to randomization
Known or suspected hereditary complement deficiency
Known or suspected immune deficiency
Recent use (up to five half-lives) of treatment with complement inhibitors (e.g., 10 weeks for eculizumab, 41 weeks for ravulizumab)
History of Neisseria meningitidis infection within 12 months prior to screening and up to first blinded study drug administration (Day 1)
Contraindication that would prevent use of any class of antibiotics as Neisseria meningitides prophylaxis
Immunization with a live attenuated vaccine within 1 month before first blinded study drug administration (Day 1)
Participants who have been partially or fully vaccinated against SARS-CoV-2 with a locally approved vaccine are eligible to be enrolled in the study, 3 days or longer after inoculation.
Recent SARS-CoV-2 infection (defined by a positive PCR test within the 2-week period prior to screening), or ongoing symptoms of active COVID-19
Any systemic bacterial, viral, or fungal infection ongoing at screening and up to the first blinded study drug administration (Day 1) which, in the investigators' judgment, is active and could potentially be worsened by immunosuppression
Current hepatitis B, hepatitis C, or HIV infection
History of malignancy within 5 years prior to screening and up to the first blinded study drug administration (Day 1)
History of hypersensitivity, allergic, or anaphylactic reactions to crovalimab or IVIg, including hypersensitivity to human, humanized, or murine monoclonal antibodies, or known hypersensitivity to any constituent of the products
For participants with prior exposure to anti-CD20 agents, most recent anti-CD20 treatment within 6 months prior to screening
Substance abuse within 12 months prior to screening, in the investigator's judgment
Active suicidal ideation within 6 months prior to screening or history of suicide attempt within 3 years prior to screening
Concurrent disease, treatment, procedure or surgery, or abnormality in clinical laboratory tests that could interfere with the conduct of the study, may pose any additional risk for the patient, or would, in the opinion of the investigator, preclude the patient's safe participation in and completion of the study
Participation in another interventional treatment study with an investigational agent or use of any experimental therapy within 28 days of screening or within five half-lives of that investigational product, whichever is longer
Splenectomy <= 6 months prior to screening
Selective IgA deficiency with development of antibodies to IgA
Only applicable for participants receiving proline-containing IVIg products: History or ongoing hyperprolinaemia type I or II at screening
Only applicable for participants receiving sucrose/glucose/maltose-containing IVIg products: History of or ongoing diabetes mellitus or use of concomitant nephrotoxic medications
Pregnancy or breastfeeding, or intention of becoming pregnant during the study or within 11 months after the final dose of crovalimab.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Clinical Trials
Organizational Affiliation
Hoffmann-La Roche
Official's Role
Study Director
12. IPD Sharing Statement
Plan to Share IPD
Yes
IPD Sharing Plan Description
Qualified researchers may request access to individual patient level data through the clinical study data request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/ourmember/roche/). For further details on Roche's Global Policy on the Sharing of Clinical Information and how to request access to related clinical study documents, see here (https://www.roche.com/research_and_development/who_we_are_how_we_work/clinical_trials/our_commitment_to_data_sharing.htm)
Learn more about this trial
A Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Crovalimab in Participants With Guillain-Barré Syndrome (GBS)
We'll reach out to this number within 24 hrs