Long-term Safety & Tolerability of TAK-881 in Subjects with Primary Immunodeficiency Diseases(PIDD)

UCI Specialty Area: Rheumatology

Principal Investigator: Sudhir Gupta

Official Title: Long-term Safety and Tolerability of TAK-881 in Subjects with Primary Immunodeficiency Diseases (PIDD)

A Study On:

Immunologic Auto Immune

Study Description

The main aim of this study is to learn if TAK-881 is safe and well tolerated during long-term use in adults and children with PIDD who are eligible and completed study TAK-881-3001 (NCT05755035).

The participants will receive the first dose of TAK-881 immunoglobulin (IgG) infusion at the same dosage as the last dose administered in study TAK-881-3001 (NCT05755035). After the first TAK-881 infusion in study TAK-881-3002, the dosing interval (can be adjusted by participant/caregiver) and/or the dose of TAK-881 can be adjusted by the study doctor to every 2, 3 or 4 weeks at scheduled site visits.

Participants will visit the clinic every 12 weeks until the End of Study (EOS) visit.

The study consists of two Epochs: Epoch 1 and Epoch 2. In Epoch 1 eligible participants will have the opportunity to receive TAK-881 for a minimum of 6 months. After 6 months in study TAK-881-3002, the results of the anti-rHuPH20 binding antibody assay from either study TAK-881-3001 (NCT05755035) or study TAK-881-3002 (Epoch 1) will be used to determine the next steps in the study:

Epoch 1: Participants with an anti-rHuPH20 antibody titer less than [<] 1:160 will complete the EOS visit on the day of the first non-investigational product (IP) infusion following Study Visit Week 25.

Epoch 2: Participants with an anti-rHuPH20 antibody titer greater than or equal to [>=] 1:160 at any time point during Study TAK-881-3001 (NCT05755035) and/or study TAK-881-3002 (Epoch 1), will continue with an additional two years of TAK-881 treatment and undergo safety follow-up and will complete the EOS visit on the day of the first non-IP infusion following study Visit Week 121.

Eligibility

Participants who meet ALL of the following criteria are eligible for this study:

Participant must have completed Study TAK-881-3001 (NCT05755035).
Participant/Participant's parent(s)/legal guardian(s) is/are willing and able to comply with the requirements of the protocol.
Participant/Participant's parent(s)/legal guardian(s) has/have provided informed consent/assent (if applicable), including providing consent for use of the investigational medical device, prior to the initiation of any study procedures.

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.
Women of childbearing potential who meet any one of the following criteria:-

a) Participant has a positive pregnancy test.

b) Participant does not agree to employ a highly effective form of contraception for the duration of the study.

If female, participant is pregnant or lactating at the time of screening or intends to become pregnant or begin lactating during the study.

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University of California, Irvine - Study Information Sheet

UCI Center for Clinical Research Potential Participant Database

Lead Researcher
Maheswari Senthil, MD
UCI Center for Clinical Research

In the instance of parental permission, “You” refers to “Your child.”

Please read the information below and ask questions about anything that you do not understand. A
researcher listed above will be available to answer your questions.

You are being asked to participate in a clinical research potential participant database to identify
potential clinical research studies you may be eligible for. Participation in this database is voluntary.
You may choose to skip any question. You may refuse to participate or discontinue your involvement
at any time without penalty or loss of benefits. You are free to withdraw from this database at any
time. If you decide to withdraw from this database you should notify the research team
immediately.

You are eligible to participate in this study if you may be interested in participating in a research trial at UCI Health

We would like to interview you to learn more about your eligibility for current clinical research studies at UCI. The interview will last about 5-30 minutes, depending on the extent of your medical history.

Possible risks/discomforts associated with the database are hearing about potential clinical research studies that may not be of interest to you, invasion of your privacy, or a potential breach of confidentiality.

There are no direct benefits from participation in the database. However, this database may help inform you on clinical research studies that you may be eligible for. Participation in UCI clinical research studies help us gain important data and knowledge that may lead to improved treatment options for people with similar conditions to you in the future.

There are no alternative procedures available. The only alternative is not to participate in this study.

There is no compensation for your participation in this database.

There is no cost to you for participation in this database.

All information collected will be stored confidentially in a world-class securely-hosted application, “RealTime CTMS,” with robust data protections and encryption. This application has HIPAA compliant architecture and application rules to ensure data privacy and regulatory compliance.

Researchers will use your information to assess your eligibility for current and future clinical research studies at UCI. You may opt out at any time.

The research team, authorized UCI personnel, and regulatory entities, may have access to your study records to protect your safety and welfare.

While the research team will make every effort to keep your personal information confidential, it is possible that an unauthorized person might see it. We cannot guarantee total privacy.

Future Research Use
Researchers will use your information to conduct this study. Once the study is done using your information, we may share them with other researchers so they can use them for other studies in the future. We will not share your name or any other private identifiable information that would let the researchers know who you are. We will not ask you for additional permission to share this de-identified information

Data Retention - In accordance with UC Office of the President policy, information will be retained for 10 years after the end of the calendar year in which the research is completed.

If, during the course of this study, significant new information becomes available that may relate to your willingness to continue to participate, this information will be provided to you by the research team listed at the top of the form.

If you have any comments, concerns, or questions regarding the conduct of this research please contact the researchers listed at the top of this form

Please contact the UCI Institutional Review Board by phone, (949) 824-8170, by e-mail at IRB@research.uci.edu or at 160 Aldrich Hall, Irvine, CA 92697-7600 if you are unable to reach the researchers listed at the top of the form and have general questions; have concerns or complaints about the research; have questions about your rights as a research subject; or have general comments or suggestions.

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