A Study About the Long-Term Safety of TAK-881 in People With Primary Immunodeficiency Diseases
Primary Immunodeficiency Diseases (PID)
About this trial
This is an interventional treatment trial for Primary Immunodeficiency Diseases (PID)
Eligibility Criteria
Inclusion Criteria Participants who meet ALL of the following criteria are eligible for this study: Participant must have completed Study TAK-881-3001 (NCT05755035). If female of childbearing potential, the participant presents with a negative pregnancy test at screening and agrees to employ an acceptable form of contraception for the duration of the study. Participant/legally authorized representative is willing and able to comply with the requirements of the protocol. Participant/Participant's legally authorized representative has provided informed consent/assent, if applicable, (that is, in writing, documented via a signed and dated informed consent form (ICF) and/or eConsent, if available), and any required privacy authorization prior to the initiation of any study procedures. Exclusion Criteria Participant has a serious medical condition such that the Participant's safety or medical care would be impacted by participation in this long-term follow-up study. New medical condition that developed during participation in Study TAK-881-3001 (NCT05755035). that, in the judgment of the investigator, could increase risk to the Participant or interfere with the evaluation of TAK-881 and/or conduct of the study. Participant has participated in another clinical study involving an investigational product (IP) or investigational device within 30 days prior to screening (with the exception of Study TAK-881-3001 [NCT05755035]). Participant is scheduled to participate in another clinical study involving an IP or investigational device during the course of this study. Participant is a family member or employee of the investigator or the investigator's site staff. If female, Participant is pregnant or lactating at the time of screening or intends to become pregnant or begin lactating during the study.
Sites / Locations
Arms of the Study
Arm 1
Experimental
TAK-881
Epoch 1: Participants with anti-rHuPH20 antibody titer <1:160 at all-time points during study TAK-881-3001 and study TAK-881-3002 will receive TAK-881 subcutaneous (SC) infusion at the same dose and same treatment interval as at the last infusion in TAK-881-3001 (NCT05755035) at Week 1 and at Weeks 13 and Week 25 of study TAK-881-3002. Epoch 2: Participants with anti-rHuPH20 antibody titer >=1:160 at any time point during Study TAK-881-3001 (NCT05755035) and/or Study TAK-881-3002 Epoch 1, will continue receiving TAK-881 every 12 weeks for up to Week 121. After the first TAK-881 infusion in study TAK-881-3002, the interval and/or the dose may be adjusted only at scheduled site visits at the investigator's discretion.