NCT00278629

Brief Summary

Chronic inflammatory demyelinating polyneuropathy is disease believed to be due to immune cells, cells which normally protect the body, but are now attacking the nerves in the body. As a result, the affected nerves fail to respond, or respond only weakly, to stimuli causing numbing, tingling, pain, and progressive muscle weakness.The likelihood of progression of the disease is high. This study is designed to examine whether treating patients with high dose cyclophosphamide (a drug which reduces the function of the immune system) and ATG (a protein that kills the immune cells that are thought to be causing disease), followed by return of the previously collected blood stem cells will stop the progression of CIDP. Stem cells are undeveloped cells that have the capacity to grow into mature blood cells, which normally circulate in the blood stream. The purpose of the high dose cyclophosphamide and ATG is to destroy the cells in the immune system. The purpose of the stem cell infusion is to evaluate whether this treatment will produce a normal immune system that will no longer attack the body.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Feb 2005

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 21, 2005

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

January 16, 2006

Completed
2 days until next milestone

First Posted

Study publicly available on registry

January 18, 2006

Completed
11 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 14, 2017

Completed
2.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

November 4, 2019

Completed
9 months until next milestone

Results Posted

Study results publicly available

July 23, 2020

Completed
Last Updated

July 23, 2020

Status Verified

June 1, 2020

Enrollment Period

11.9 years

First QC Date

January 16, 2006

Results QC Date

June 29, 2020

Last Update Submit

July 15, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With Survival

    Survival of participants who survived the treatment and up to 5 years post treatment.

    up to 5 years

Secondary Outcomes (3)

  • Disease Improvement - Medication Free Remission

    6 months, 1, 2, 3, 4 and 5 years post transplant

  • Disease Improvement - Ambulatory Assistance

    pre transplant, 6 months, 1, 2, 3, 4 and 5 years post transplant

  • Change in Disability and Strength Functional Scales

    Pre Transplant, 6 months, 1, 2, 3, 4 and 5 years post transplant

Study Arms (1)

Hematopoietic Stem Cell Transplantation in CIDP

EXPERIMENTAL

Autologous hematopoietic stem cell transplantation will be performed after conditioning regimen of cyclophosphamide 200 mg/kg/intravenously(IV), rATG(thymoglobulin) 5.5 mg/kg/IV and rituximab 1000mg/IV.

Biological: hematopoietic stem cell transplantation

Interventions

Autologous hematopoietic stem cell transplantation

Hematopoietic Stem Cell Transplantation in CIDP

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Definite CIDP according to the European Federation of Neurological Societies/Peripheral Nerve Society (EFNS/PNS) criteria
  • AND
  • Clinically typical or atypical CIDP
  • AND
  • Failure to tolerate or respond to, or an incomplete response to, or relapse after at least 3 months of conventional treatment consisting of corticosteroids (equivalent dosage of prednisone 1.0/mg/day to 0.75mg/kg/day to start with adequate tapering trials of no less than 0.5mg/kg/day), and/or either intravenous immunoglobulin (IVIg) or plasmapheresis or cytoxan or rituxan
  • Failure to respond to therapy is defined by:
  • Persistent muscle weakness Grade 3/5 or worse (MRC) in at least one muscle or grade 4/5 in at least two muscle groups OR
  • Persistent dysphagia documented by either aspiration or insufficient clearing on videofluoroscopic examination.
  • Persistent incapacitating sensory loss (e.g. gait ataxia, falls \> 1/month)
  • AND
  • If patients are on IVIG or plasmapheresis, neurologic condition is documented to deteriorate (for example, new or increase finger tip paresthesias or increased leg heaviness) upon stopping IVIG (or plasmapheresis)@
  • Monoclonal gammopathy of undetermined significance (MUGS) (in which the pathogenesis of are thought to be the same as CIDP) will be allowed provided bone marrow aspirate and biopsy rules out multiple myeloma.
  • Other immune mediated or suspected immune mediated neuropathies such as multifocal motor neuropathy or anti-myelin-associated glycoprotein (anti-MAG) neuropathy may be treated but will be analyzed and reported separately.

You may not qualify if:

  • Any evidence of hereditary cause for neuropathy that is known or likely hereditary demyelination neuropathy because of family history, foot deformity, mutilation of hands or feet, retinitis pigmentosa, ichthyosis, or liability to pressure palsies.
  • Diphtheria, drug, or toxin exposure likely to be cause of neuropathy
  • Conditions in which the pathogenesis of the neuropathy may be different from CIDP such as: Lyme disease (Borrelia burgdorferi infection), POEMS syndrome, Osteosclerotic myeloma, malignancies such as Waldenstrom macroglobulinemia, and Castleman's)
  • Multiple myeloma
  • HIV positive
  • Insulin dependent Diabetes mellitus
  • Chronic active hepatitis
  • Age \> 65 years old or \< 18 years old
  • Significant end organ damage such as (not caused by CIDP):
  • Left ventricular ejection fraction (LVEF) \<40% or deterioration of LVEF during exercise test on multigated acquisition scan (MUGA) or echocardiogram.
  • Untreated life-threatening arrhythmia.
  • Active ischemic heart disease or heart failure or myocardial infarction within the last 6 months
  • Diffusing capacity of lung for carbon monoxide (DLCO) \<40% or forced expiratory volume at one second (FEV1) / forced expiratory volume (FEV) \< 50%
  • Serum creatinine \>2.0.
  • Liver cirrhosis, transaminases \> 2 x of normal limits or bilirubin \>2.0 unless due to Gilbert disease.
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northwestern University, Feinberg School of Medicine

Chicago, Illinois, 60611, United States

Location

Related Publications (1)

  • Burt RK, Balabanov R, Tavee J, Han X, Sufit R, Ajroud-Driss S, Jovanovic B, Quigley K, Arnautovic I, Helenowski I, Sharrack B. Hematopoietic stem cell transplantation for chronic inflammatory demyelinating polyradiculoneuropathy. J Neurol. 2020 Nov;267(11):3378-3391. doi: 10.1007/s00415-020-10010-6. Epub 2020 Jun 27.

Related Links

MeSH Terms

Conditions

Polyradiculoneuropathy, Chronic Inflammatory Demyelinating

Interventions

Hematopoietic Stem Cell Transplantation

Condition Hierarchy (Ancestors)

PolyradiculoneuropathyAutoimmune Diseases of the Nervous SystemNervous System DiseasesDemyelinating DiseasesPolyneuropathiesPeripheral Nervous System DiseasesNeuromuscular DiseasesAutoimmune DiseasesImmune System DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Stem Cell TransplantationCell TransplantationCell- and Tissue-Based TherapyBiological TherapyTherapeuticsTransplantationSurgical Procedures, Operative

Results Point of Contact

Title
Kathleen Quigley
Organization
Northwestern University

Study Officials

  • Richard Burt, MD

    Northwestern University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

January 16, 2006

First Posted

January 18, 2006

Study Start

February 21, 2005

Primary Completion

January 14, 2017

Study Completion

November 4, 2019

Last Updated

July 23, 2020

Results First Posted

July 23, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share

Locations