NCT04871035

Brief Summary

This is an observations study evaluating safety and efficacy of immunoadsorption compared to plasma exchange in Guillain-Barré Syndrome.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
16mo left

Started Apr 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress79%
Apr 2021Sep 2027

First Submitted

Initial submission to the registry

April 28, 2021

Completed
Same day until next milestone

Study Start

First participant enrolled

April 28, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 4, 2021

Completed
6.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2027

Last Updated

May 1, 2026

Status Verified

April 1, 2026

Enrollment Period

6.3 years

First QC Date

April 28, 2021

Last Update Submit

April 30, 2026

Conditions

Outcome Measures

Primary Outcomes (4)

  • Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) Score

    Combined score consisting of Inflammatory Neuropathy Cause and Treatment (INCAT) disability score, Oxford muscle strength score, and vibration score, equally weighted

    2 weeks

  • Inflammatory Neuropathy Cause and Treatment (INCAT) disability score

    Standard clinical score for inflammatory neuropathies.

    2 weeks

  • Oxford Muscle Strength Score (Medical Research Council, MRC)

    Standard clinical score for evaluating muscle strength / paresis. Muscle strength will be measured on a scale between 0 (no movement) and 5 (full strength) on 8 pre-defined muscles (one proximal and one distal muscle at each extremity).

    2 weeks

  • Vibration Score

    Standard clinical score for evaluation of vibration sensitivity on a scale between 0 and 8, using a 256 tuning fork at 4 predefined spots (processus styloideus radii and malleolus lateralis on both sides).

    2 weeks

Secondary Outcomes (24)

  • Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) Score

    1, 3, and 5 weeks

  • Inflammatory Neuropathy Cause and Treatment (INCAT) disability score

    1, 3, and 5 weeks

  • Oxford Muscle Strength Score (Medical Research Council, MRC)

    1, 3, and 5 weeks

  • Vibration Score

    1, 3, and 5 weeks

  • Hughes Score

    1, 2, 3, and 5 weeks

  • +19 more secondary outcomes

Study Arms (2)

Immunoadsorption

Device: Immunoadsorption

Plasma Exchange

Device: Plasma Exchange

Interventions

1 cycle, consisting of 5 sessions on 5 consecutive days with processing of the 0.7-fold individual plasma volume (maximum 2.5 l) each days with tryptophan adsorbers.

Immunoadsorption

1 cycle, consisting of 5 sessions on 5 consecutive days with exchange of 0.7-fold plasma volume (maximum 2.5 l) each day with albumin solution as volume replacement solution.

Plasma Exchange

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population consists of patients diagnosed with Guillain-Barré syndrome (GBS) who are treated with either plasma exchange or immunoadsorption in the Department of Neurology, University of Ulm.

You may qualify if:

  • Diagnosis of Guillain-Barré Syndrome according to the diagnostic criteria proposed by Doorn et al. (Clinical features, pathogenesis, and treatment of Guillain-Barré syndrome, Lancet neurology 2008)
  • age 18 years or above

You may not qualify if:

  • Clinical or laboratory (C-reactive protein 20 mg/l or above, or evidence of nitrite-positive urinary tract infection) evidence of manifest systemic infection
  • Intake of angiotensin converting enzyme inhibitor within1 weeks before first treatment
  • Other contraindications against immunoadsorption or plasma exchange

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurology, University of Ulm

Ulm, Baden-Wurttemberg, 89081, Germany

RECRUITING

MeSH Terms

Interventions

PlasmapheresisPlasma Exchange

Intervention Hierarchy (Ancestors)

Blood Component RemovalTherapeuticsSorption DetoxificationExtracorporeal CirculationSurgical Procedures, OperativeBlood TransfusionBiological Therapy

Study Officials

  • Johannes Dorst, Prof

    University of Ulm

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

April 28, 2021

First Posted

May 4, 2021

Study Start

April 28, 2021

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

September 1, 2027

Last Updated

May 1, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

Individual participant data that underlie the results reported in this article, after de-identification (text, tables, and figures), as well as the study protocol will be available. Data will be available beginning 3 months and ending 5 years following article publication. Data will be shared with researchers who provide a methodologically sound proposal. Data will be shared for analyses to achieve the aims in the approved proposal. Proposals should be directed to johannes.dorst@uni-ulm.de; to gain access, data requestors will need to sign a data access agreement. Data are available for 5 years at https://www.uniklinik-ulm.de/neurologie.html.

Shared Documents
STUDY PROTOCOL
Time Frame
3 months after publication until 5 years after publication
Access Criteria
Data will be shared with researchers who provide a methodologically sound proposal. Data will be shared for analyses to achieve the aims in the approved proposal.
More information

Locations