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CIDP (Chronic Inflammatory Demyelinating Polyradiculoneuropathy)PIDCNCT03460951

Diffusion Tensor Imaging in Chronic Inflammatory Demyelinating Polyneuropathy (PIDC)

An observational study of CIDP (Chronic Inflammatory Demyelinating Polyradiculoneuropathy) and CMT (Charcot Marie Tooth Disease), run by University Hospital, Clermont-Ferrand at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The main purpose of this study is to assess the clinical feasibility of diffusion tensor imaging (DTI) for the diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
What is being tested?
cervical MRI
How many people
45 participants
Where
1 siteFrance
Study dates
18 Nov 2013to 31 Dec 2015
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: men or women

Who may be able to join

  • - For All patients: at least 18 years-old.
  • For CMT1a group : CMT1 a should be proven by genetic testing
  • For CIDP group: CIDP should satisfied the definite CIDP criteria of the Joint Task Force of the EFNS and PNS 1 (situations A and B according to the French CIDP work group2). They might have received steroids, immunoglobulin or immunosuppressive treatments

Who cannot join

  • For all groups: any neurological comorbidity, other causes of neuropathy or history of exposure to neurotoxic agents (the inclusion and exclusion criteria are detailed in supplemental data) allergies, renal failure, Pregnancy

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU Clermont-Ferrand

    Clermont-Ferrand, 63003

Other trials in France

About this study

Official title: MRI of the Brachial Plexus and Chronic Inflammatory Demyelinating Polyradiculoneuropathy: Assessment of DTI-derived Measurements at 3.0-T

The main purpose of this study is to assess the clinical feasibility of diffusion tensor imaging (DTI) for the diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). For thar purpose, investigator will compare, fractional anisotropy (FA) obtained by diffusion tensor imaging (DTI) MRI 3T on brachial plexus and cervical spinal nerve roots between patients with defined Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP), according to the EFNS 2010 criteria, and healthy controls.

The secondary outcomes will be to compare DTI parameters (FA, ADC or Apparent Diffusion Coefficient) between CIDP patients, healthy volunteers, and patients with Charcot Marie Tooth disease type 1a (CMT1a) and MRI morphological parameters (T1, STIR) between these groups. Moreover, investigator will investigate the possible relationship between MRI parameters, clinical indices, and electrophysiological measure.

Read the detailed description

Investigator will prospectively enroll 15 patients with CIDP followed in the Neurology Department of Clermont Ferrand University Hospital, who satisfy the Joint Task Force of the EFNS and PNS definite CIDP criteria. Two control groups will be studied in parallel, including 15 healthy volunteers on one side, and 15 patients with CMT-1A on the other side (proven by genetic testing). Using a 3-T magnetic resonance imaging scanner, we will obtain DTI scans of brachial plexus of these 3 groups, prepare fractional anisotropy (FA) maps, and compare these values between groups. Investigator will evaluate MRI imaging findings too (coronal STIR, T1-weighted images,and DWIs). MRI studies will be reviewed independently by two neuroradiologists, blinded to clinical informations. In all patients with CIDP, investigator will also performs clinical evaluation and electroneuromyography. Correlation between FA values clinical indices will be examined.

Being tested
cervical MRI
Keywords
Feasibility and reproductibility, DTI parameters (Fractional Anisotropy, Apparent Diffusion Coefficient), MRI morphological parameters (T1, STIR)
Medical subject headings
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating, Charcot-Marie-Tooth Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • cervical MRIDiagnostic test

    Cervical MRI will be performed in all of the patients and controls on a 3.0-T scanner (Discovery MR750, General Electric (GE) Medical Systems, Milwaukee, WI, USA)

Study groups in NCT03460951
Study groupRoleWhat they receive
CIDP patients15 patients with CIDP (Chronic Inflammatory Demyelinating Polyradiculoneuropathy ) who satisfy the definite CIDP criteria of the Joint Task Force of the EFNS and PNS 1 (situations A and B according to the French CIDP work group2), and who agree to undergo cervical MRI.
Receives: Diagnostic Test: cervical MRI
Normal volunteers15 healthy subjects matched for age and gender to CIDP patients
Receives: Diagnostic Test: cervical MRI
Charcot-Marie-Tooth disease type 1A patients (CMT-1A)15 CMT-1A patients (proven by genetic testing), will be included as Charcot-Marie-Tooth disease type 1A patients (CMT-1A) is one of the main differential diagnoses of CIDP characterized by the diffuse demyelination of peripheral nerves.
Receives: Diagnostic Test: cervical MRI

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Fractional Anisotropy in C5 to C8 nerve roots in CIDP patients compared to CMT-1A patients and healthy controls.

    Diffusion Tensor Imaging (DTI) is a modality of Diffusion-Weighted Imaging (DWI). Fractional Anisotropy (FA) and Apparent Diffusion Coefficient (ADC) values, determines the magnitude of directionality of diffusion.

    Measured: At day 1

Secondary outcomes (11)
  1. Apparent Diffusion Coefficient (ADC) values in C5 to C8 nerve roots in CIDP patients compared to CMT-1A patients and healthy controls

    Diffusion Tensor Imaging (DTI) is a modality of Diffusion-Weighted Imaging (DWI). Fractional Anisotropy (FA) and Apparent Diffusion Coefficient (ADC) values, determines the magnitude of directionality of diffusion.

    Measured: At day 1

  2. Cervical nerve roots diameter

    The diameters of cervical nerve roots (C6-C8) will be measured at the outlet of the intervertebral canal, on coronal STIR sequences, using an ADW 4.5 workstation.

    Measured: at day 1

  3. Clinical data analysis

    Disease severity at inclusion (Medical Research Council score (MRC), INCAT sensory sum score (INCAT), Overall Neuropathy Limitation Scale (ONLS)) will be prospectively assessed by the same study investigator. We will also perform nerve conduction studies on all the CIDP patients

    Measured: at day 1

  4. Electrophysiological data analysis : motor conduction

    Amplitude of compound muscle action potential (ACMAP),

    Measured: at day 1

  5. Electrophysiological data analysis motor conduction

    Motor conduction velocity (MCV)

    Measured: at day 1

  6. Electrophysiological data analysis motor conduction

    Motor distal latency (MDL)

    Measured: at day 1

  7. Electrophysiological data analysis motor conduction

    F-wave latency (FL)

    Measured: at day 1

  8. Electrophysiological data analysis :motor conduction

    terminal latency index (TLI))

    Measured: at day 1

  9. Electrophysiological data analysis : sensitive conduction

    Amplitude of sensitive potential (ASP)

    Measured: at day 1

  10. Electrophysiological data analysis : sensitive conduction

    Sensitive conduction velocity (SCV)

    Measured: at day 1

  11. Electrophysiological data analysis : sensitive conduction

    Sensitive distal latency (SDL)

    Measured: at day 1

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Mar 2018
  2. Study start18 Nov 2013
  3. Primary completion31 Dec 2015
  4. Study completion31 Dec 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
45 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03460951
Sponsor's protocol ID
CHU-379
Other IDs
2013-A00808-37
Acronym
PIDC
Status last verified
Mar 2018
First submitted
16 Feb 2018
Last updated
9 Mar 2018
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of CIDP (Chronic Inflammatory Demyelinating Polyradiculoneuropathy) and CMT (Charcot Marie Tooth Disease), run by University Hospital, Clermont-Ferrand at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Mar 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Fractional Anisotropy in C5 to C8 nerve roots in CIDP patients compared to CMT-1A patients and healthy controls. (time frame: At day 1). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Mar 2018.

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