Immunoadsorption Versus Immunoglobulins for Treatment of Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)

This study is comparing two treatments for CIDP (Chronic Inflammatory Demyelinating Polyneuropathy) — a condition where the immune system attacks the nerves, causing weakness and numbness. The two treatments being compared are immunoadsorption (a process that filters harmful antibodies from the blood) and intravenous immunoglobulins (IVIG, which boosts the immune system in a different way). You may be eligible if: - You are 18 years or older - You have been diagnosed with CIDP (possible, probable, or definite) for 3 years or less - You have already tried corticosteroids (methylprednisolone) and either did not respond well, had significant side effects, or have a reason you cannot take them You may NOT be eligible if: - You have signs of an active serious infection (high CRP or a urinary tract infection) - You have taken an ACE inhibitor within the past week - You have IgA deficiency - You have other contraindications to immunoadsorption or IVIG Talk to your doctor to see if this trial is right for you.