A Study About the Long-Term Safety of TAK-881 in People With Primary Immunodeficiency Diseases

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 was enrolled 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.
• •Participants with potential to become pregnant who meet any one of the following criteria:-
• •1. Participant has a positive pregnancy test.
• •2. Participant does not agree to employ a highly effective form of contraception for the duration of the study.
• •If participant is pregnant or lactating at the time of screening or intends to become pregnant or begin lactating during the study.