ClinicalTrials.gg
CompletedNCT01545076Updated Jul 5, 2018Results posted

Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) and Treatment With Subcutaneous Immunoglobulin (IgPro20)

A Phase 3 interventional study of IgPro20 (low dose) and Placebo in Chronic Inflammatory Demyelinating Polyneuropathy and Polyradiculoneuropathy, sponsored by CSL Behring. Completed at 91 sites in 16 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-07-05.

Sponsored by CSL Behring (part of CSL Limited) · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
208
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a prospective, multicenter, randomized, double-blind, placebo-controlled, parallel-group 3-arm study to investigate 2 different doses of subcutaneous (SC) IgPro20 compared with placebo for maintenance treatment of patients with CIDP.

Patients who received at lease 1 dose of intravenous immunoglobulin (IVIG) within 8 weeks before screening will be assessed during 4 separate study periods. Patients first undergo a Screening Period, followed by an IgG Dependency Test Period of up to 12 weeks to test for ongoing need of IgG. Those patients experiencing CIDP relapse during this test period will be administered a standardized IVIG regimen during an IVIG Re-stabilization Period. Patients with improved and maintained adjusted inflammatory neuropathy cause and treatment scale (INCAT) in the IVIG Re-stabilization Period will continue to the SC Treatment Period of the study. Patients entering the 24 week SC Treatment Period will be randomized to receive weekly infusions of 1 of 2 IgPro20 doses (0.2 or 0.4 g/kg body weight) or placebo.

The overall study duration is up to 52 weeks. Clinical outcomes will be assessed by the Inflammatory Neuropathy Cause and Treatment (INCAT) score, maximum grip strength, the Medical Research Council (MRC) sum score, the Rasch-built Overall Disability Scale (R-ODS), and electrophysiological evaluations.

02

Conditions studied

  • Chronic Inflammatory Demyelinating Polyneuropathy
  • Polyradiculoneuropathy
03

In context

Polyradiculoneuropathy, Chronic Inflammatory Demyelinating

137 studies on the registry are indexed under Polyradiculoneuropathy, Chronic Inflammatory Demyelinating; 51 are open to participants now.

This study's enrollment of 208 is above the median of 37 across 85 interventional studies indexed under Polyradiculoneuropathy, Chronic Inflammatory Demyelinating.

Browse Polyradiculoneuropathy, Chronic Inflammatory Demyelinating studies →

Lead sponsor

CSL Behring is the lead sponsor of 145 studies on the registry; 17 are open to participants now.

Of its 24 completed or terminated interventional studies of FDA-regulated products, 17 (71%) have results posted.

First submitted after CSL Behring became part of CSL Limited.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Definite or probable CIDP according to the European Federation of Neurological Societies/Peripheral Nerve Society (EFNS/PNS) criteria 2010.
  • An IVIG treatment during the last 8 weeks prior to enrollment.
  • Age ≥18 years.
  • Written for study participation obtained before undergoing any study-specific procedures.

Exclusion criteria

Exclusion Criteria:

  • Any polyneuropathy of other causes
  • Any other disease (mainly neurological or chronic orthopedic) that has caused neurological symptoms or may interfere with treatment or outcome assessments
  • Severe diseases and conditions that are likely to interfere with evaluation of the study product or satisfactory conduct of the study
  • History of thrombotic episodes within the 2 years prior to enrolment
  • Known allergic or other severe reactions to blood products including intolerability to previous IVIG
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
208 participants (actual)

Study arms

  • Experimental
    IgPro20 low dose

    Biological: IgPro20 (low dose) · Biological: IgPro10

  • Experimental
    IgPro20 high dose

    Biological: IgPro10 · Biological: IgPro20 (high dose)

  • Placebo comparator
    Placebo

    Biological: Placebo · Biological: IgPro10

Interventions

  • 20% liquid formulation (200 mg/mL) of human normal immunoglobulin for subcutaneous use administered weekly during the SC treatment period of the study according to the randomization: 0.2 g/kg body weight (low dose arm)

    Also known as: Hizentra

  • BiologicalPlacebo

    2% human albumin administered by weekly SC infusions during the SC treatment period of the study.

  • BiologicalIgPro10

    10% Immunoglobulin G (IgG) liquid formulation of human normal immunoglobulin (Privigen®) administered intravenously during Restabilization Period of the study and/or as Rescue Therapy during SC Treatment Period for subjects with a CIDP relapse.

  • 20% liquid formulation (200 mg/mL) of human normal immunoglobulin for subcutaneous use administered weekly during the SC treatment period of the study according to the randomization: 0.4 g/kg body weight (high dose arm)

    Also known as: Hizentra

06

What researchers measure

Primary outcomes

  1. Percentage (%) of Subjects With CIDP Relapse or Are Withdrawn for Any Other Reason During the Subcutaneous (SC) Treatment Period

    Relapse is defined as an increase of at least 1 INCAT score point (except for the increase from 0 to 1 in the upper limb score). The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

    Time frame: Up to 25 weeks

Secondary outcomes

  1. Change in Inflammatory Neuropathy Cause and Treatment (INCAT) Scores During the SC Treatment Period

    The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

    Time frame: Baseline and up to 25 weeks

  2. Median Change From Baseline in the Mean Grip Strength Scores of the Dominant Hand During the SC Treatment Period

    The hand-held Vigorimeter is a device that measures the strength of small muscles in the hand; ie, grip strength. Subjects squeezed a rubber bulb lying between the palm of the hand and the thumb and index fingers. The pressure was recorded via a rubber tube on a nanometer and expressed in kilopascal. At each assessment, the subjects squeezed 3 times with each hand. The mean grip strength median score of the dominant hand was determined.

    Time frame: Baseline and up to 25 weeks

  3. Change in the Medical Research Council (MRC) Sum Scores During the SC Treatment Period

    An adapted version of the MRC sum score was used in the study. The MRC sum score is the sum of all 16 muscle scores, and ranges from 0 (paralysis) to 80 (normal strength).

    Time frame: Baseline and up to 25 weeks

  4. Change in Rasch-built Overall Disability Scale (R-ODS) Scores During the SC Treatment Period

    The R-ODS centile score captures activity and social participation in subjects with CIDP. The R-ODS centile score ranges from 0 (most severe activity and social participation limitations) to 100 (no activity and social participation limitations).

    Time frame: Baseline and up to 25 weeks

  5. Time to CIDP Relapse or Withdrawal Due to Any Other Reason During the SC Treatment Period

    Time frame: Up to 25 weeks

  6. Number of Adverse Events Per IgPro20 Infusion During the SC Treatment Period

    Time frame: Up to 28 weeks

  7. Number of Subjects With Adverse Events During the SC Treatment Period

    Time frame: Up to 28 weeks

  8. Percentage of Subjects With Adverse Events During the SC Treatment Period

    Time frame: Up to 28 weeks

  9. Time to Improvement During IgPro10 Re-stabilization Therapy

    Improvement is defined as an INCAT score decrease by 1 point (except for the decrease from 1 to 0 in the upper limb score), R-ODS improvement by at least 4 points, Mean Grip strength improvement by at least 8 kPa in one hand, or MRC Sum score \>=3.

    Time frame: Up to 13 weeks

  10. Change in Mean Grip Strength During IgPro10 Re-stabilization Therapy

    The hand-held Vigorimeter is a device that measures the strength of small muscles in the hand; ie, grip strength. Subjects squeezed a rubber bulb lying between the palm of the hand and the thumb and index fingers. The pressure was recorded via a rubber tube on a nanometer and expressed in kilopascal. At each assessment, the subjects squeezed 3 times with each hand. The mean grip strength median score of the dominant hand was determined.

    Time frame: Reference visit and up to 13 weeks

  11. Change in MRC Sum Score During IgPro10 Re-stabilization Therapy

    An adapted version of the MRC sum score was used in the study. The MRC sum score is the sum of all 16 muscle scores, and ranges from 0 (paralysis) to 80 (normal strength).

    Time frame: Reference visit and up to 13 weeks

  12. Change in R-ODS During IgPro10 Re-stabilization Therapy

    The R-ODS centile score captures activity and social participation in subjects with CIDP. The R-ODS centile score ranges from 0 (most severe activity and social participation limitations) to 100 (no activity and social participation limitations).

    Time frame: Reference visit and up to 13 weeks

  13. Change in INCAT During IgPro10 Re-stabilization Therapy

    The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

    Time frame: Reference visit and up to 13 weeks

  14. Number of Adverse Events Per IgPro10 Infusion During Re-stabilization Therapy

    Time frame: Up to 13 weeks

  15. Number of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy

    Time frame: Up to 13 weeks

  16. Percent of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy

    Time frame: Up to 13 weeks

  17. Time to Improvement After CIDP Relapse During IgPro10 Rescue Therapy

    Improvement is defined as a decrease in INCAT score (except for the decrease from 1 to 0 in the upper limb score) back to or below the baseline score..The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

    Time frame: Up to 13 weeks

  18. Number of Adverse Events Per IgPro10 Infusion During Rescue Therapy

    Time frame: Up to 13 weeks

  19. Number of Subjects With Adverse Events During IgPro10 Rescue Therapy

    Time frame: Up to 13 weeks

  20. Percent of Subjects With Adverse Events During IgPro10 Rescue Therapy

    Time frame: Up to 13 weeks

  21. Change in Mean Grip Strength During IgPro10 Rescue Therapy

    The hand-held Vigorimeter is a device that measures the strength of small muscles in the hand; ie, grip strength. Subjects squeezed a rubber bulb lying between the palm of the hand and the thumb and index fingers. The pressure was recorded via a rubber tube on a nanometer and expressed in kilopascal. At each assessment, the subjects squeezed 3 times with each hand. The mean grip strength median score of the dominant hand was determined.

    Time frame: Before first rescue IgPro10 infusion and up to 13 weeks

  22. Change in MRC Sum Score During IgPro10 Rescue Therapy

    An adapted version of the MRC sum score was used in the study. The MRC sum score is the sum of all 16 muscle scores, and ranges from 0 (paralysis) to 80 (normal strength).

    Time frame: Before first rescue IgPro10 infusion and up to 13 weeks

  23. Change in R-ODS During IgPro10 Rescue Therapy

    The R-ODS centile score captures activity and social participation in subjects with CIDP. The R-ODS centile score ranges from 0 (most severe activity and social participation limitations) to 100 (no activity and social participation limitations).

    Time frame: Before first rescue IgPro10 infusion and up to 13 weeks

  24. Change in INCAT During IgPro10 Rescue Therapy

    The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

    Time frame: Before first rescue IgPro10 infusion and up to 13 weeks

07

Results

Posted Jul 5, 2018

Participant flow

IgPro10 Restabilization Period
Participant flow — IgPro10 Restabilization Period
MilestoneIgPro10 Re-stabilizationIgPro20 (0.4)IgPro20 (0.2)PlaceboIgPro10 Rescue
Started2080000
Completed1720000
Not completed360000
Withdrew: Adverse event40000
Withdrew: Physician decision20000
Withdrew: Protocol violation10000
Withdrew: Failure to meet randomization criteria220000
Withdrew: Withdrawal by subject70000
IgPro20 Subcutaneous Treatment Period
Participant flow — IgPro20 Subcutaneous Treatment Period
MilestoneIgPro10 Re-stabilizationIgPro20 (0.4)IgPro20 (0.2)PlaceboIgPro10 Rescue
Started05857570
Completed03936210
Not completed01921360
Withdrew: Physician decision00010
Withdrew: Lack of efficacy01018320
Withdrew: Adverse event01100
Withdrew: Withdrawal by subject08230
IgPro10 Rescue Period
Participant flow — IgPro10 Rescue Period
MilestoneIgPro10 Re-stabilizationIgPro20 (0.4)IgPro20 (0.2)PlaceboIgPro10 Rescue
Started000060
Completed000060
Not completed00000

Outcome measures

PrimaryPercentage (%) of Subjects With CIDP Relapse or Are Withdrawn for Any Other Reason During the Subcutaneous (SC) Treatment Period

Relapse is defined as an increase of at least 1 INCAT score point (except for the increase from 0 to 1 in the upper limb score). The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

Time frame:
Up to 25 weeks
Reported as:
Number · percentage of subjects
Percentage (%) of Subjects With CIDP Relapse or Are Withdrawn for Any Other Reason During the Subcutaneous (SC) Treatment Period
percentage of subjectsIgPro20 (0.4)IgPro20 (0.2)Placebo
Percentage (%) of Subjects With CIDP Relapse or Are Withdrawn for Any Other Reason During the Subcutaneous (SC) Treatment Period32.838.663.2
Statistical analysis
  • IgPro20 (0.2) vs Placebo · Fisher Exact · p = =0.007 · Difference in percent: -24.6 · 95% CI -40.7 to -6.21
  • IgPro20 (0.4) vs Placebo · Fisher Exact · p = <0.001 · Difference in percent: -30.4 · 95% CI -46.0 to -12.2
SecondaryChange in Inflammatory Neuropathy Cause and Treatment (INCAT) Scores During the SC Treatment Period

The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

Time frame:
Baseline and up to 25 weeks
Reported as:
Median · units on a scale
Change in Inflammatory Neuropathy Cause and Treatment (INCAT) Scores During the SC Treatment Period
units on a scaleIgPro20 (0.4)IgPro20 (0.2)Placebo
Change in Inflammatory Neuropathy Cause and Treatment (INCAT) Scores During the SC Treatment Period0 (-2 to 3)0 (-2 to 5)1 (-1 to 4)
Statistical analysis
  • IgPro20 (0.2) vs Placebo · Wilcoxon rank sum · p = =0.005 · Median difference (net): 0 · 95% CI -1 to 0
  • IgPro20 (0.4) vs Placebo · Wilcoxon rank sum · p = <0.001 · Median difference (net): -1 · 95% CI -1 to 0
SecondaryMedian Change From Baseline in the Mean Grip Strength Scores of the Dominant Hand During the SC Treatment Period

The hand-held Vigorimeter is a device that measures the strength of small muscles in the hand; ie, grip strength. Subjects squeezed a rubber bulb lying between the palm of the hand and the thumb and index fingers. The pressure was recorded via a rubber tube on a nanometer and expressed in kilopascal. At each assessment, the subjects squeezed 3 times with each hand. The mean grip strength median score of the dominant hand was determined.

Time frame:
Baseline and up to 25 weeks
Reported as:
Median · Kilopascal (kPa)
Median Change From Baseline in the Mean Grip Strength Scores of the Dominant Hand During the SC Treatment Period
Kilopascal (kPa)IgPro20 (0.4)IgPro20 (0.2)Placebo
Median Change From Baseline in the Mean Grip Strength Scores of the Dominant Hand During the SC Treatment Period-2.7 (-80 to 55)-0.6 (-80 to 55)-6.6 (-51 to 22)
Statistical analysis
  • IgPro20 (0.2) vs Placebo · Wilcoxon rank sum · p = =0.004 · Median difference (net): 7.6 · 95% CI 2 to 14
  • IgPro20 (0.4) vs Placebo · Wilcoxon rank sum · p = =0.014 · Median difference (net): 5.7 · 95% CI 0.7 to 11.7
SecondaryChange in the Medical Research Council (MRC) Sum Scores During the SC Treatment Period

An adapted version of the MRC sum score was used in the study. The MRC sum score is the sum of all 16 muscle scores, and ranges from 0 (paralysis) to 80 (normal strength).

Time frame:
Baseline and up to 25 weeks
Reported as:
Median · units on a scale
Change in the Medical Research Council (MRC) Sum Scores During the SC Treatment Period
units on a scaleIgPro20 (0.4)IgPro20 (0.2)Placebo
Change in the Medical Research Council (MRC) Sum Scores During the SC Treatment Period0 (-12 to 7)0 (-16 to 14)-2 (-19 to 6)
Statistical analysis
  • IgPro20 (0.2) vs Placebo · Wilcoxon rank sum · p = =0.003 · Median difference (final values): 2 · 95% CI 1 to 4
  • IgPro20 (0.4) vs Placebo · Wilcoxon rank sum · p = =0.002 · Median difference (final values): 2 · 95% CI 1 to 4
SecondaryChange in Rasch-built Overall Disability Scale (R-ODS) Scores During the SC Treatment Period

The R-ODS centile score captures activity and social participation in subjects with CIDP. The R-ODS centile score ranges from 0 (most severe activity and social participation limitations) to 100 (no activity and social participation limitations).

Time frame:
Baseline and up to 25 weeks
Reported as:
Median · units on a scale
Change in Rasch-built Overall Disability Scale (R-ODS) Scores During the SC Treatment Period
units on a scaleIgPro20 (0.4)IgPro20 (0.2)Placebo
Change in Rasch-built Overall Disability Scale (R-ODS) Scores During the SC Treatment Period0 (-49 to 17)-2 (-41 to 100)-3 (-43 to 13)
Statistical analysis
  • IgPro20 (0.2) vs Placebo · Wilcoxon rank sum · p = =0.03 · Median difference (net): 3 · 95% CI 0 to 9
  • IgPro20 (0.4) vs Placebo · Wilcoxon rank sum · p = <0.001 · Median difference (net): 5 · 95% CI 2 to 9
SecondaryTime to CIDP Relapse or Withdrawal Due to Any Other Reason During the SC Treatment Period
Time frame:
Up to 25 weeks
Reported as:
Median · Days
Time to CIDP Relapse or Withdrawal Due to Any Other Reason During the SC Treatment Period
DaysIgPro20 (0.4)IgPro20 (0.2)Placebo
Time to CIDP Relapse or Withdrawal Due to Any Other Reason During the SC Treatment PeriodNA (NA to NA)NA (113.0 to NA)79.0 (57.0 to 125.0)
SecondaryNumber of Adverse Events Per IgPro20 Infusion During the SC Treatment Period
Time frame:
Up to 28 weeks
Reported as:
Number · Adverse events/Infusion
Number of Adverse Events Per IgPro20 Infusion During the SC Treatment Period
Adverse events/InfusionIgPro20 (0.4)IgPro20 (0.2)Placebo
Number of Adverse Events Per IgPro20 Infusion During the SC Treatment Period0.0510.0790.034
SecondaryNumber of Subjects With Adverse Events During the SC Treatment Period
Time frame:
Up to 28 weeks
Reported as:
Count of participants · Participants
Number of Subjects With Adverse Events During the SC Treatment Period
ParticipantsIgPro20 (0.4)IgPro20 (0.2)Placebo
Number of Subjects With Adverse Events During the SC Treatment Period303321
SecondaryPercentage of Subjects With Adverse Events During the SC Treatment Period
Time frame:
Up to 28 weeks
Reported as:
Number · percentage of subjects
Percentage of Subjects With Adverse Events During the SC Treatment Period
percentage of subjectsIgPro20 (0.4)IgPro20 (0.2)Placebo
Percentage of Subjects With Adverse Events During the SC Treatment Period51.757.936.8
SecondaryTime to Improvement During IgPro10 Re-stabilization Therapy

Improvement is defined as an INCAT score decrease by 1 point (except for the decrease from 1 to 0 in the upper limb score), R-ODS improvement by at least 4 points, Mean Grip strength improvement by at least 8 kPa in one hand, or MRC Sum score \>=3.

Time frame:
Up to 13 weeks
Reported as:
Median · Days
Time to Improvement During IgPro10 Re-stabilization Therapy
DaysIgPro10
Time to Improvement During IgPro10 Re-stabilization Therapy23 (22 to 23)
SecondaryChange in Mean Grip Strength During IgPro10 Re-stabilization Therapy

The hand-held Vigorimeter is a device that measures the strength of small muscles in the hand; ie, grip strength. Subjects squeezed a rubber bulb lying between the palm of the hand and the thumb and index fingers. The pressure was recorded via a rubber tube on a nanometer and expressed in kilopascal. At each assessment, the subjects squeezed 3 times with each hand. The mean grip strength median score of the dominant hand was determined.

Time frame:
Reference visit and up to 13 weeks
Reported as:
Mean · kPa
Change in Mean Grip Strength During IgPro10 Re-stabilization Therapy
kPaIgPro10
Change in Mean Grip Strength During IgPro10 Re-stabilization Therapy11.27 ± 16.89
SecondaryChange in MRC Sum Score During IgPro10 Re-stabilization Therapy

An adapted version of the MRC sum score was used in the study. The MRC sum score is the sum of all 16 muscle scores, and ranges from 0 (paralysis) to 80 (normal strength).

Time frame:
Reference visit and up to 13 weeks
Reported as:
Mean · units on a scale
Change in MRC Sum Score During IgPro10 Re-stabilization Therapy
units on a scaleIgPro10
Change in MRC Sum Score During IgPro10 Re-stabilization Therapy3.4 ± 4.9
SecondaryChange in R-ODS During IgPro10 Re-stabilization Therapy

The R-ODS centile score captures activity and social participation in subjects with CIDP. The R-ODS centile score ranges from 0 (most severe activity and social participation limitations) to 100 (no activity and social participation limitations).

Time frame:
Reference visit and up to 13 weeks
Reported as:
Mean · units on a scale
Change in R-ODS During IgPro10 Re-stabilization Therapy
units on a scaleIgPro10
Change in R-ODS During IgPro10 Re-stabilization Therapy4.7 ± 14.14
SecondaryChange in INCAT During IgPro10 Re-stabilization Therapy

The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

Time frame:
Reference visit and up to 13 weeks
Reported as:
Mean · units on a scale
Change in INCAT During IgPro10 Re-stabilization Therapy
units on a scaleIgPro10
Change in INCAT During IgPro10 Re-stabilization Therapy-1.1 ± 1.2
SecondaryNumber of Adverse Events Per IgPro10 Infusion During Re-stabilization Therapy
Time frame:
Up to 13 weeks
Reported as:
Number · Adverse events/Infusion
Number of Adverse Events Per IgPro10 Infusion During Re-stabilization Therapy
Adverse events/InfusionIgPro10
Number of Adverse Events Per IgPro10 Infusion During Re-stabilization Therapy0.175
SecondaryNumber of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy
Time frame:
Up to 13 weeks
Reported as:
Number · participants
Number of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy
participantsIgPro10
Number of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy100
SecondaryPercent of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy
Time frame:
Up to 13 weeks
Reported as:
Number · percentage of subjects
Percent of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy
percentage of subjectsIgPro10
Percent of Subjects With Adverse Events During IgPro10 Re-stabilization Therapy48.3
SecondaryTime to Improvement After CIDP Relapse During IgPro10 Rescue Therapy

Improvement is defined as a decrease in INCAT score (except for the decrease from 1 to 0 in the upper limb score) back to or below the baseline score..The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

Time frame:
Up to 13 weeks
Reported as:
Median · Days
Time to Improvement After CIDP Relapse During IgPro10 Rescue Therapy
DaysIgPro10
Time to Improvement After CIDP Relapse During IgPro10 Rescue Therapy23 (22 to 49)
SecondaryNumber of Adverse Events Per IgPro10 Infusion During Rescue Therapy
Time frame:
Up to 13 weeks
Reported as:
Number · Adverse events/Infusion
Number of Adverse Events Per IgPro10 Infusion During Rescue Therapy
Adverse events/InfusionIgPro10
Number of Adverse Events Per IgPro10 Infusion During Rescue Therapy0.142
SecondaryNumber of Subjects With Adverse Events During IgPro10 Rescue Therapy
Time frame:
Up to 13 weeks
Reported as:
Number · participants
Number of Subjects With Adverse Events During IgPro10 Rescue Therapy
participantsIgPro10
Number of Subjects With Adverse Events During IgPro10 Rescue Therapy17
SecondaryPercent of Subjects With Adverse Events During IgPro10 Rescue Therapy
Time frame:
Up to 13 weeks
Reported as:
Number · percentage of subjects
Percent of Subjects With Adverse Events During IgPro10 Rescue Therapy
percentage of subjectsIgPro10
Percent of Subjects With Adverse Events During IgPro10 Rescue Therapy28.3
SecondaryChange in Mean Grip Strength During IgPro10 Rescue Therapy

The hand-held Vigorimeter is a device that measures the strength of small muscles in the hand; ie, grip strength. Subjects squeezed a rubber bulb lying between the palm of the hand and the thumb and index fingers. The pressure was recorded via a rubber tube on a nanometer and expressed in kilopascal. At each assessment, the subjects squeezed 3 times with each hand. The mean grip strength median score of the dominant hand was determined.

Time frame:
Before first rescue IgPro10 infusion and up to 13 weeks
Reported as:
Mean · kPa
Change in Mean Grip Strength During IgPro10 Rescue Therapy
kPaIgPro10
Change in Mean Grip Strength During IgPro10 Rescue Therapy16.3 ± 17.58
SecondaryChange in MRC Sum Score During IgPro10 Rescue Therapy

An adapted version of the MRC sum score was used in the study. The MRC sum score is the sum of all 16 muscle scores, and ranges from 0 (paralysis) to 80 (normal strength).

Time frame:
Before first rescue IgPro10 infusion and up to 13 weeks
Reported as:
Mean · units on a scale
Change in MRC Sum Score During IgPro10 Rescue Therapy
units on a scaleIgPro10
Change in MRC Sum Score During IgPro10 Rescue Therapy6.8 ± 5.28
SecondaryChange in R-ODS During IgPro10 Rescue Therapy

The R-ODS centile score captures activity and social participation in subjects with CIDP. The R-ODS centile score ranges from 0 (most severe activity and social participation limitations) to 100 (no activity and social participation limitations).

Time frame:
Before first rescue IgPro10 infusion and up to 13 weeks
Reported as:
Mean · units on a scale
Change in R-ODS During IgPro10 Rescue Therapy
units on a scaleIgPro10
Change in R-ODS During IgPro10 Rescue Therapy14.0 ± 14.69
SecondaryChange in INCAT During IgPro10 Rescue Therapy

The INCAT score is a 10-point scale that covers the functionality of legs and arms, and has been successfully used to measure treatment effects in various CIDP studies. Scores for arm disability range from 0 ("No upper limb problems") to 5 ("Inability to use either arm for any purposeful movement"), and scores for leg disability range from 0 ("Walking not affected") to 5 ("Restricted to wheelchair, unable to stand and walk a few steps with help"). The INCAT (total) score is the sum of these 2 scores and ranges from 0 to 10. For the "adjusted" INCAT score, changes in the function of the upper limbs from 0 (normal) to 1 (minor symptoms) or from 1 to 0 were not recorded as deterioration or improvement because these changes are not considered clinically significant.

Time frame:
Before first rescue IgPro10 infusion and up to 13 weeks
Reported as:
Mean · units on a scale
Change in INCAT During IgPro10 Rescue Therapy
units on a scaleIgPro10
Change in INCAT During IgPro10 Rescue Therapy-1.3 ± 1.31

Adverse events

Collected over 4.5 years. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
IgPro10 Restabilization0/207 (0%)11/207 (5.3%)50/207 (24.2%)
IgPro20 (0.4)0/58 (0%)2/58 (3.4%)20/58 (34.5%)
IgPro20 (0.2)0/57 (0%)3/57 (5.3%)22/57 (38.6%)
Placebo0/57 (0%)1/57 (1.8%)15/57 (26.3%)
IgPro10 Rescue0/60 (0%)2/60 (3.3%)7/60 (11.7%)
Most frequent serious events
Showing 10 of 24
Most frequent serious events
EventIgPro10 RestabilizationIgPro20 (0.4)IgPro20 (0.2)PlaceboIgPro10 Rescue
Inguinal herniaGastrointestinal disorders0/2070/580/571/570/60
Dermatitis allergicSkin and subcutaneous tissue disorders0/2070/581/570/570/60
ArthralgiaMusculoskeletal and connective tissue disorders0/2070/581/570/570/60
Fracture nonunionMusculoskeletal and connective tissue disorders0/2070/581/570/570/60
Bacterial infectionInfections and infestations0/2070/581/570/570/60
Device related infectionInfections and infestations0/2070/581/570/570/60
AnemiaBlood and lymphatic system disorders0/2071/580/570/570/60
Cholecystitis acuteHepatobiliary disorders0/2071/580/570/570/60
ArthropathyMusculoskeletal and connective tissue disorders0/2071/580/570/570/60
SepsisInfections and infestations0/2071/580/570/570/60
Most frequent other events
Showing 10 of 15
Most frequent other events
EventIgPro10 RestabilizationIgPro20 (0.4)IgPro20 (0.2)PlaceboIgPro10 Rescue
Infusion site erythemaGeneral disorders0/20710/585/570/570/60
HeadacheNervous system disorders34/2074/584/572/574/60
Infusion site swellingGeneral disorders0/2076/585/572/570/60
FatigueGeneral disorders5/2070/585/571/570/60
NasopharyngitisInfections and infestations12/2072/584/571/571/60
NauseaGastrointestinal disorders10/2071/580/572/574/60
FallInjury, poisoning and procedural complications5/2071/583/570/570/60
Infusion site painGeneral disorders0/2072/583/572/570/60
ArthralgiaMusculoskeletal and connective tissue disorders3/2071/583/571/570/60
Back painMusculoskeletal and connective tissue disorders5/2071/583/571/571/60

Baseline characteristics

Pre-randomization Safety Data Set (PSDS): The PSDS was based on all subjects enrolled into the study who received at least 1 dose of IgPro10 (in the re-stabilization period) before randomization into the subcutaneous period. One subject withdrew from the re-stabilization period prior to receiving IgPro10, therefore n=207 for the PSDS.

Age, Categorical
Age, Categorical(Participants)Pre-randomization Safety Data Set (PSDS)
<=18 years0
Between 18 and 65 years150
>=65 years57
Age, Continuous
Age, Continuous(years)Pre-randomization Safety Data Set (PSDS)
Mean56.5 ± 12.76
Sex: Female, Male
Sex: Female, Male(Participants)Pre-randomization Safety Data Set (PSDS)
Female76
Male131
Region of Enrollment
Region of Enrollment(Participants)Pre-randomization Safety Data Set (PSDS)
United States25
Czechia6
Japan15
United Kingdom6
Spain16
Canada19
Netherlands7
Belgium2
Finland1
Poland8
Italy32
Israel2
Australia6
France9
Germany51
Estonia2
08

Study locations

91 sites
  • Site reference 8400181
    Birmingham, Alabama 35233, United States
  • Site reference 8400173
    Phoenix, Arizona 85013, United States
  • Site reference 8400172
    Phoenix, Arizona 85018, United States
  • Site reference 8400167
    Los Angeles, California 90033, United States
  • Site reference 8400077
    Centennial, Colorado 80112, United States
  • Site Reference 8400352
    Washington, District of Columbia 20037, United States
  • Site reference 8400214
    Miami, Florida 33136, United States
  • Site reference 8400162
    Chicago, Illinois 60611, United States
  • Site Reference 8400247
    Chicago, Illinois 60611, United States
  • Site Reference 8400215
    Indianapolis, Indiana 46202, United States
  • Site reference 8400166
    Kansas City, Kansas 66160, United States
  • Site Reference 8400347
    New Brunswick, New Jersey 08901, United States
  • Site reference 8400169
    New York, New York 10021, United States
  • Site reference 8400179
    New York, New York 10021, United States
  • Site reference 8400182
    Charlotte, North Carolina 28204, United States
  • Site Reference 8400346
    Durham, North Carolina 27710, United States
  • Site reference 8400178
    Columbus, Ohio 43210, United States
  • Site reference 8400217
    Oklahoma City, Oklahoma 73104, United States
  • Site Reference 8400177
    Nashville, Tennessee 37232, United States
  • Site reference 8400164
    Houston, Texas 77030, United States
  • Site Reference 8400268
    Charlottesville, Virginia 22908, United States
  • Site Reference 8400340
    Seattle, Washington 98195, United States
  • Site Reference 0360017
    Herston, Queensland 4029, Australia
  • Site reference 0360011
    Fitzroy, Victoria, Australia
  • Site reference 0360008
    Southport, Australia
  • Site reference 0560003
    Leuven, Belgium
  • Site Reference 1240048
    Vancouver, British Columbia V5Z 1M9, Canada
  • Site Reference 1240051
    Montreal, Quebec H3A 2B4, Canada
  • Site reference 1240006
    Edmonton, Canada
  • Site reference 1240007
    Quebec, Canada
  • Site reference 1240009
    Toronto, Canada
  • Site reference 2030002
    Hradec Kralove, Czechia
  • Site reference 2030009
    Hradec Kralove, Czechia
  • Site reference 2030003
    Prague, Czechia
  • Site Reference 2330002
    Tallinn, 10138, Estonia
  • Site Reference 2330003
    Tallinn, 10617, Estonia
  • Site reference 2460002
    Helsinki, Finland
  • Site reference 2500024
    Clermont-Ferrand, France
  • Site reference 2500013
    Marseille, France
  • Site reference 2500022
    Nice, France
  • Site reference 2500019
    Pessac, France
  • Site reference 2760048
    Berlin, Germany
  • Site reference 2760069
    Berlin, Germany
  • Site reference 2760072
    Berlin, Germany
  • Site reference 2760049
    Bochum, Germany
  • Site reference 2760075
    Duesseldorf, Germany
  • Site Reference 2760094
    Essen, 45122, Germany
  • Site reference 2760052
    Essen, Germany
  • Site reference 2760036
    Göttingen, Germany
  • Site reference 2760053
    Göttingen, Germany
  • Site reference 2760054
    Hannover, Germany
  • Site Reference 2760113
    Ibbenbueren, 49477, Germany
  • Site reference 2760080
    Koeln, Germany
  • Site reference 2760055
    Leipzig, Germany
  • Site reference 2760047
    Potsdam, Germany
  • Site reference 2760039
    Wuerzburg, Germany
  • Site reference 3760005
    Haifa, Israel
  • Site reference 3760002
    Tel Aviv, Israel
  • Site reference 3800026
    Chieti, Italy
  • Site reference 3800027
    Firenze, Italy
  • Site reference 3800028
    Genova, Italy
  • Site reference 3800031
    Milano, Italy
  • Site reference 3800035
    Roma, Italy
  • Site reference 3800036
    Roma, Italy
  • Site reference 3800030
    Rozzano, Italy
  • Site reference 3800037
    Torino, Italy
  • Site Reference 3920040
    Aomori, 030-8553, Japan
  • Site Reference 3920042
    Aomori, 030-8553, Japan
  • Site reference 3920038
    Chiba, Japan
  • Site reference 3920061
    Kanagawa, Japan
  • Site reference 3920045
    Matsumoto, Japan
  • Site reference 3920058
    Osaka, Japan
  • Site reference 3920037
    Saitama, Japan
  • Site reference 3920034
    Tokushima, Japan
  • Site Reference 3920065
    Tokyo, 113-8431, Japan
  • Site Reference 3920062
    Tokyo, 187-8551, Japan
  • Site reference 3920032
    Tokyo, Japan
  • Site reference 3920035
    Yamaguchi, Japan
  • Site reference 5280001
    Amsterdam, Netherlands
  • Site reference 5280005
    Maastricht, Netherlands
  • Site reference 5280004
    Utrecht, Netherlands
  • Site Reference 6160058
    Gdansk, 80-803, Poland
  • Site Reference 6160060
    Lodz, 90-324, Poland
  • Site Reference 6160055
    Lublin, 20-954, Poland
  • Site reference 7240010
    Barcelona, Spain
  • Site reference 7240011
    Barcelona, Spain
  • Site reference 7240013
    Madrid, Spain
  • Site reference 7240014
    Madrid, Spain
  • Site reference 7240016
    Sevilla, Spain
  • Site reference 8260019
    London, United Kingdom
  • Site Reference 8260032
    Manchester, M6 8HD, United Kingdom
09

References and documents

Publications

  • van Schaik IN, Bril V, van Geloven N, Hartung HP, Lewis RA, Sobue G, Lawo JP, Praus M, Mielke O, Durn BL, Cornblath DR, Merkies ISJ; PATH study group. Subcutaneous immunoglobulin for maintenance treatment in chronic inflammatory demyelinating polyneuropathy (PATH): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Neurol. 2018 Jan;17(1):35-46. doi: 10.1016/S1474-4422(17)30378-2. Epub 2017 Nov 6. Erratum In: Lancet Neurol. 2018 Jan;17(1):26. doi: 10.1016/S1474-4422(17)30427-1. Lancet Neurol. 2018 Aug;17(8):661. doi: 10.1016/S1474-4422(18)30260-6. PubMed 29122523 ↗
  • van Schaik IN, van Geloven N, Bril V, Hartung HP, Lewis RA, Sobue G, Lawo JP, Mielke O, Cornblath DR, Merkies IS; PATH study group. Subcutaneous immunoglobulin for maintenance treatment in chronic inflammatory demyelinating polyneuropathy (The PATH Study): study protocol for a randomized controlled trial. Trials. 2016 Jul 25;17(1):345. doi: 10.1186/s13063-016-1466-2. PubMed 27455854 ↗
10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Mar 2012, a primary completion of Sep 2016 and a completion of Sep 2016. It does not say whether these dates are actual or estimated.

Results were first posted in Jul 2018, 1 year 10 months after primary completion. A results delay was requested in Sep 2017.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 1, 2012
First posted
Mar 6, 2012
Start
Mar 2012
Primary completionActual
Sep 2016
CompletionActual
Sep 2016
Results delay requested
Sep 20, 2017
Results first posted
Jul 5, 2018
Last update
Jul 5, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 5, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01545076
Lead sponsor
CSL Behring
Collaborators
ICON Clinical Research
Responsible party
Sponsor
First posted
Mar 6, 2012
Start date
Mar 2012
Primary completion
Sep 2016
Completion
Sep 2016
Results posted
Jul 5, 2018
Last update
Jul 5, 2018

Study contacts

Prof. Dr. Ivo N. van Schaik
principal investigator · Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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