Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational
Official Title: sCD163 & CD19 as Candidate Biomarkers in Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) - A Study of sCD163 in the Cerebrospinal Fluid
Brief Summary:
Chronic inflammatory demyelinating polyneuropathy (CIDP) and multifocal motor neuropathy (MMN) are characterized by progressive deterioration in muscle strength, loss of sensibility, diminished or absent reflexes and impaired fine motor control. Often it is caused by demyelination which is suitable for treatment but damage to the axons may also occur especially in case of insufficient treatment.
CIDP and MMN are immune mediated neuropathies in which first choice of treatment is intravenous immunoglobulin (IVIG), although the mechanisms underlying the effect of the IVIG is not yet clarified.
The patients are diagnosed by electrophysiological examination and elevated level of protein in the cerebrospinal fluid. The diagnosis may be difficult to make due to great clinical variation and insensitive examinations methods including lack of biomarkers.
The purpose of this study is to define if patients treated with SCIG and IVIG for CIDP and MMN have higher concentrations of sCD163 and CD19 in their cerebrospinal fluid and serum compared with symptomatic control subjects and is related to disease severity. Furthermore it is to define if patients newly diagnosed with CIDP or MMN have higher levels of sCD163 and CD19, than patients treated regularly with SCIG and IVIG.