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Extension Study of Maintenance Treatment With Subcutaneous Immunoglobulin (IgPro20) for Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)

This study is ongoing, but not recruiting participants.
Sponsor:
Information provided by (Responsible Party):
CSL Behring
ClinicalTrials.gov Identifier:
NCT02027701
First received: January 3, 2014
Last updated: April 10, 2017
Last verified: April 2017
  Purpose

This study is an extension study to the pivotal study IgPro20_3003 (NCT01545076). The purpose of this extension study is to investigate the long-term treatment of CIDP with IgPro20, with regard to safety and efficacy.

Subjects who have completed subcutaneous (SC) Week 25 or were successfully rescued from a CIDP relapse during the SC Treatment Period of pivotal study IgPro20_3003 (NCT01545076) will have the option to receive open-label low-dose IgPro20 (0.2 g/kg bodyweight [bw]) weekly for up to 48 weeks. Subjects relapsing on low-dose IgPro20 will either return to high-dose IgPro20 (0.4 g/kg) immediately or be discontinued, depending on investigator's judgment. Subjects returning to high-dose IgPro20 will continue on high-dose until they have completed a total of 48 weeks of IgPro20 treatment. If subjects do not successfully recover from CIDP relapse within 4 weeks, they will be withdrawn.

The treatment duration will be up to 48 weeks, followed by a completion visit (week 49).


Condition Intervention Phase
Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Biological: IgPro20
Phase 3

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Treatment
Official Title: Multicenter, Open-label Extension Study to Investigate the Long-term Safety and Efficacy of IgPro20 in Maintenance Treatment of Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) in Subjects Completing Study IgPro20_3003

Resource links provided by NLM:


Further study details as provided by CSL Behring:

Primary Outcome Measures:
  • Overall rate of adverse events (AEs) per infusion [ Time Frame: Up to 49 weeks ]
    Overall rate of AEs per infusion during IgPro20 treatment


Secondary Outcome Measures:
  • Rate of adverse events (AEs) per infusion by severity, causality, and seriousness [ Time Frame: Up to 49 weeks ]
  • Percentage of subjects with AEs, overall and by severity, causality and seriousness [ Time Frame: Up to 49 weeks ]
  • Rate of adverse events (AEs) per infusion by severity, causality, and seriousness by IgPro20 dose level [ Time Frame: Up to 49 weeks ]
  • Percentage of subjects with adverse events (AEs) by severity, causality, and seriousness by IgPro20 dose level [ Time Frame: Up to 49 weeks ]
  • Change from baseline in total adjusted Inflammatory Neuropathy Cause and Treatment (INCAT) score [ Time Frame: Up to 49 weeks (baseline [Week 1], Weeks 2, 9, 25, 33, and at completion visit) ]
  • Time to first CIDP relapse [ Time Frame: Up to 49 weeks ]
    Time to first CIDP relapse based on adjusted INCAT score, using the Kaplan-Meier estimator. 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 only).

  • Change from baseline in Medical Research Council (MRC) score [ Time Frame: Up to 49 weeks (baseline [Week 1], Weeks 2, 9, 25, 33, and at completion visit) ]
  • Change from baseline in Rasch-built Overall Disability Scale (R-ODS) [ Time Frame: Up to 49 weeks (baseline [Week 1], Weeks 2, 9, 25, 33, and at completion visit) ]
  • Change from baseline in mean grip strength [ Time Frame: Up to 49 weeks (baseline [Week 1], Weeks 2, 9, 25, 33, and at completion visit) ]

Enrollment: 82
Study Start Date: July 2014
Estimated Study Completion Date: July 2017
Estimated Primary Completion Date: July 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: IgPro20
20% liquid formulation (200 mg/mL) of human normal immunoglobulin for SC use administered SC weekly: 0.2 g/kg bw (low-dose IgPro20) for up to 48 weeks. Subjects who experience CIDP relapse on 0.2 g/kg IgPro20 will have an increase to 0.4 g/kg IgPro20 immediately and will continue on high-dose until they have completed a total of 48 weeks of IgPro20 treatment.
Biological: IgPro20

  Eligibility

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Subjects having completed the pivotal study IgPro20_3003 (SC Week 25) or successfully rescued from a CIDP relapse during the SC Treatment Period of pivotal study IgPro20_3003 (NCT01545076).
  • Written informed consent for study participation obtained before undergoing any study-specific procedures.

Exclusion Criteria:

  • Subject is unable to directly transition from study IgPro20_3003.
  • New medical condition and/or social behavior (ie, alcohol, drug, or medication abuse) during participation in study IgPro20_3003 that in the judgment of the investigator could increase risk to the subject, interfere with the evaluation of investigational medicinal product, and/or conduct of the study.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT02027701

  Show 33 Study Locations
Sponsors and Collaborators
CSL Behring
Investigators
Principal Investigator: Prof. Dr. Ivo N. van Schaik Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
  More Information

Responsible Party: CSL Behring
ClinicalTrials.gov Identifier: NCT02027701     History of Changes
Other Study ID Numbers: IgPro20_3004
2013-004157-24 ( EudraCT Number )
Study First Received: January 3, 2014
Last Updated: April 10, 2017

Additional relevant MeSH terms:
Polyneuropathies
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Demyelinating Diseases
Polyradiculoneuropathy
Peripheral Nervous System Diseases
Neuromuscular Diseases
Nervous System Diseases
Autoimmune Diseases of the Nervous System
Autoimmune Diseases
Immune System Diseases
Immunoglobulins
Antibodies
Immunologic Factors
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on April 28, 2017