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This study is an observational, ambispective, descriptive, non-interventional study of people with a chronic inflammatory demyelinating polyneuropathy/polyradiculoneuropathy (CIDP) diagnosis in the United States with residual impairment, disability, or neurological deficits after at least three months of treatment with standard of care therapy. The study is expected to last two years. Enrollment is expected to continue for one year. Depending on when the participant is enrolled, a participant can be followed for between one and two years, through the end of study, approximately two years after the study starts.
CIDP is an autoimmune disease. This means that the body's germ fighting (immune) system attacks itself. In CIDP, the immune system attacks the protective covering around the nerves called myelin. Over time, these nerves lose their ability to send signals to the muscles in the body. This leads to muscle weakness and loss of sensation in arms and legs among other symptoms. Participants with CIDP can be treated with a protein called immunoglobulin (or IG). TAK-411 is a special type of immune globulin G (hsIgG) that has been chemically changed. It is made from IG that comes from human plasma. This study will test if TAK-411 can decrease inflammation and improve symptoms of CIDP. The main aim of this study is to check how TAK-411 affects the physical functioning of adults with CIDP when compared with results of the placebo group of a historical trial. Participants may be treated with TAK-411 for up to 1 year (51 weeks) and will be followed up for 3 weeks after last dose. During the study, participants may visit their study clinic up to approximately 21 times.
The main aim of this study is to evaluate the pharmacokinetic (PK) comparability between TAK-881 and HYQVIA subcutaneous (SC) administration for maintenance therapy of CIDP. The participants who are already receiving intravenous immunoglobulin G (IGIV), conventional subcutaneous intravenous immunoglobulin G (cIGSC), or HYQVIA will be treated with the same dose equivalent as their prior IG treatment with HYQVIA for 24 weeks followed by TAK-881 for 24 weeks. Participants will need to visit the clinic every 3 or 4 weeks until they enter the extension phase. In the extension phase, home infusions are allowed, and visits will occur between every 12 weeks and 24 weeks.
The main aims of this study are to understand why adults with Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) chose a certain treatment, why they changed to HyQvia from another therapy, how satisfied they are with HyQvia and their previous treatment, how their work productivity and activity is impacted and learn about their CIDP signs and symptoms. Other aims are to collect information on any medical problems or side effects during the treatment with HyQvia, learn how effective treatment of CIDP with HyQvia is and understand details on the use of HyQvia in standard clinical routine as well on the need for healthcare intervention (such as emergency room visits or hospital visits or stays). During the study, data will be collected from medical records already available, interviews with participants at study start and study completion and via questionnaires completed by participants. Participants will be treated as per the doctor's or the clinic's routine.
The purpose of the study is to evaluate efficacy of riliprubart compared to placebo in adult participants with CIDP whose disease is refractory to standard of care. The study duration will be for a maximum of 111 weeks including screening, treatment phases, and follow-up.
The main purpose of this study is to evaluate the safety and efficacy of nipocalimab compared to placebo in delaying relapse in adults with chronic inflammatory demyelinating polyneuropathy (CIDP) who initially respond to nipocalimab in Stage A.
Safety and Efficacy of Different PANZYGA Dose Regimens in Pediatric Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP) Patients
This is a Phase 2b study to evaluate the efficacy and safety of IMVT-1402 in adults with CIDP.
The purpose of the study is to evaluate the safety of NVG-2089 and to evaluate how well patients respond to this investigational treatment. NVG-2089 is a new drug that is being developed for treating patients with CIDP. NVG-2089 is designed to mimic the effects of a protein called IVIg. NVG-2089 is designed to potentially help the immune system by attaching (binding) to certain receptors in the body and activating them, which helps reduce inflammation and supports how the immune system works.
The main purpose of this study is to compare empasiprubart and IVIg for treating people with CIDP. This study consists of a Part A where participants will either receive empasiprubart and a placebo resembling IVIg, or IVIg and a placebo resembling empasiprubart for 24 weeks (6 months). Following Part A, participants will enter Part B in which all participants will receive empasiprubart for 96 weeks (24 months).