Primary Immunodeficiency Diseases clinical trials at UC Irvine

The main aim of this study is to compare the pharmacokinetics (PK) of subcutaneous (SC) administration of TAK-881 with HYQVIA in participants with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). The participants who are already receiving intravenous immunoglobulin G (IGIV)/conventional subcutaneous intravenous immunoglobulin G (cIGSC) will be treated with HYQVIA or TAK-881 with the same dose and dosing interval of immunoglobulin for up to 24 weeks. Participants will need to visit the clinic every 3 or 4 weeks during the duration of the study.