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Study identifier: NCT03918421 Synced from ClinicalTrials.gov · August 08, 2026
● Study status: Recruiting

Immunoglobulin M (IgM)-Anti-myelin-associated-glycoprotein(MAG) Peripheral Neuropathy Study

Condition: Immunoglobin M Anti-myelin-associated-glycoprotein Peripheral Neuropathy  ·  Sponsor: Hospices Civils de Lyon

PhaseN/A
Planned participants45
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNoCheck eligibility criteria ↓
Where2 locations

Interested? Contact the study team ↓

Sponsor, CRO or site team? See where this study is running → — listed sites, countries and recruiting context. Everything below is written for patients and caregivers.

About this study

There is no international consensus regarding how to assess and treat patients with immunoglobulin M (IgM)-anti-myelin-associated-glycoprotein (MAG) monoclonal gammopathy associated peripheral neuropathy. The purpose of the IMAGiNe study-Lyon/Bicêtre is to prospectively collect standardized clinical data of 25 patients with IgM-anti-MAG monoclonal gammopathy associated peripheral neuropathy in order to participate in the international IMAGiNe Study. The main objective is to describe in detail the various clinical subtypes, clinical course, treatment responses, antibody titers of IgM-anti-MAG monoclonal gammopathy associated peripheral neuropathy using a variety of outcome measures. The obtained observational data will allow the construction of an IgM monoclonal gammopathy associated peripheral neuropathy-specific Rasch-built overall Disability Scale (RODS) that should fulfill all modern clinimetric requirements, including cross-cultural validity. The coordinating centers for the IgM-RODS construction will be the Maastricht University Medical Center and University Medical Center Utrecht, both in the Netherlands.

This description comes directly from the study's public registry record.

Talk to the study team

Juliette SVAHN, MD  ·  4 72 11 66 08  ·  juliette.svahn@chu-lyon.fr

There is no obligation to join — the study team can answer your questions about taking part.

Always discuss trial participation with your own doctor first.

Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * fulfilling the international criteria for the diagnosis Immunogloblin M (IgM) monoclonal gammopathy, with anti-myelin-associated-glycoprotein (MAG) antibodies, and peripheral neuropathy. * age of 18 years or older followed in neuromuscular department of Lyon; * informed consent given by the participant Exclusion Criteria: * concomitant diseases possibly interfering with peripheral nerve and function, as well as physical functioning, such as diabetes, renal insufficiency, (prior) treatment with chemotherapy for diseases other than their Immunogloblin M (IgM) monoclonal gammopathy associated peripheral neuropathy, history of hereditary neuropathy, vitamin deficiency, connective tissue disorder, hepatitis B and C and human immunodeficiency virus (HIV) infection, alcohol abuse (more than 5 International Units(IU)/day); * an active malignancy with poor prognosis, undergoing treatment aside from monoclonal gammopathy associated peripheral neuropathy; * pregnant; * the use of any medication that may cause peripheral nerve function

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (2)

Hospices Civils de Lyon Service Neurologie C, Pathologies Neuromusculaires, Unité 302Bron, FranceRecruiting
Centre de référence NNERfLe Kremlin-Bicêtre, FranceRecruiting

More studies in these areas

This study lists sites in the areas below. Each link shows other recruiting studies near that city, from the public registry record.

BronLe Kremlin-Bicêtre

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