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Is therapeutic plasma exchange a better treatment than intravenous immunoglobulin in people with severe Guillain-Barre Syndrome (GBS)?

Does therapeutic plasma exchange improve outcomes in severe Guillain-Barre Syndrome (GBS) compared to intravenous immunoglobulin? A protocol for a New Zealand pilot study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12621000815864
Acronym
IRIS
Enrollment
0
Registered
2021-06-28
Start date
2021-07-05
Completion date
2023-07-03
Last updated
2022-08-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This is a prospective, rater-blinded, randomised pilot study to compare the outcome of severe GBS patients (Hughes GBS Disability Scale 4 and 5) treated with TPE vs those patients treated with IVIg. We hypothesise that TPE will lead to improved outcomes in comparison to IVIg therapy in patients with severe GBS

Interventions

Therapeutic plasma exchange (TPE): is a semi-automated extracorporeal procedure to exchange the plasma with an inert blood replacement such as Albumin. This helps in the progressive dilution of immunoglobulins which are the presumed target in an autoimmune condition. IRIS TRIAL - THERAPEUTIC PLASMA EXCHANGE PROTOCOL Machine: • Centrifugal apheresis machine Procedure: • 5 – 7 procedures in 7 – 10 days, on alternate days • Initial exchange: 1.2 to 1.5 times Total Plasma Volume (TPV), 90-120 mi

Therapeutic plasma exchange (TPE): is a semi-automated extracorporeal procedure to exchange the plasma with an inert blood replacement such as Albumin. This helps in the progressive dilution of immunoglobulins which are the presumed target in an autoimmune condition. IRIS TRIAL - THERAPEUTIC PLASMA EXCHANGE PROTOCOL Machine: • Centrifugal apheresis machine Procedure: • 5 – 7 procedures in 7 – 10 days, on alternate days • Initial exchange: 1.2 to 1.5 times Total Plasma Volume (TPV), 90-120 minutes per session • Subsequent exchanges: 1.0 TPV • Replacement solution: 4% Albumin only Monitoring: • At initiation: FBC, Coag Screen, U& E’s, Liver Function tests • Daily coagulation screen in the morning before the procedure • Every patient to be put on Vit K 10mg IV, daily prophylactically The decision of whether or not a participant receives 5, 6 or 7 procedures will be the decision of the "treating" neurologist/clinician (i.e.not the "study" neurologist/research team) to ensure that the care of the patient is kept independent from the study objectives.

Sponsors

Waikato Hospital
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Inclusion criteria: 1) A diagnosis of GBS by Cornblath and Asbury criteria . 2) GBS severity of 4 or 5 by Hughes GBS severity scale OR early treatment outcome (EGOS) score of 5 or greater OR early GBS respiratory insufficiency (EGRIS) score of 5 or greater. 3) Able to start assigned treatment within 2 weeks of weakness onset. 4) At least 18 years of age at the time of enrollment. 5) Able to provide informed consent

Exclusion criteria

Exclusion criteria: 1) Any antecedent illness that would interfere with the ability to perform outcome assessments 2) History of an allergy to IVIg 3) History of an allergic reaction to Albumin 4%. 4) History of IgA deficiency with anti-IgA antibodies 5) Known reaction to blood products 6) Patient with strong objection to the use of blood products

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026