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Clinical Trial Summary

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 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.


Clinical Trial Description

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 at the next scheduled IgG 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 at the next scheduled IgG infusion following study Visit Week 121. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06076642
Study type Interventional
Source Takeda
Contact Takeda Contact
Phone +1-877-825-3327
Email medinfoUS@takeda.com
Status Not yet recruiting
Phase Phase 3
Start date December 6, 2024
Completion date May 7, 2027

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