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Study identifier: NCT06963827 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Study of Mezagitamab in Adults With Kidney Condition Called IgA Nephropathy

Condition: Kidney Disease  ·  Sponsor: Takeda

PhasePhase 3
Planned participants347
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Immunoglobulin A nephropathy (IgAN) is a kidney condition. It happens when the body's immune system creates groups of proteins (called immune complexes) that build-up in the kidneys causing swelling (inflammation). Over time, this inflammation may lead to kidney damage and cause the kidneys to no longer work properly. The main aim of this study is to check how well mezagitamab changes protein levels in the urine (proteinuria) compared to placebo in adults with primary IgAN. A placebo looks like medicine but doesn't have any active ingredients in it. Other aims are to check how safe mezagitamab is and how well participants with primary IgAN can tolerate it compared to placebo, and to find out if and how well mezagitamab continues to maintain kidney function over the long term compared to placebo. Participants will be placed in 1 of the 2 treatment groups; the main group and the open-label group. In the main group, participants will be placed by chance in either the mezagitamab or placebo treatment group at a 2:1 ratio. This means that out of 3 participants, 2 will receive mezagitamab and 1 will receive placebo. Participants can be in the study for 2 years (104 weeks). Participants will receive study treatment for about half a year (22 weeks) and then be observed for the remainder of the study (about 1.5 years). During observation, participants will continue to have check-ups about every month. In the open-label group, a small number of participants who either have lower leve…

This description comes directly from the study's public registry record.

Talk to the study team

Takeda Contact  ·  +1-877-825-3327  ·  medinfoUS@takeda.com

Always discuss trial participation with your own doctor first.

Locations (172)

UAB Nephrology Research Clinic at Paula BuildingBirmingham, Alabama, United StatesRecruiting
DCR MontgomeryMontgomery, Alabama, United StatesRecruiting
Panoramic Health - Southwest Kidney Institute, PLCSurprise, Arizona, United StatesRecruiting
Panoramic Health - West Coast Kidney Institute (Fremont)Fremont, California, United StatesRecruiting
Academic Medical Research InstituteLos Angeles, California, United StatesRecruiting
University of California IrvineOrange, California, United StatesRecruiting
Panoramic Health - Florida Kidney Physicians, LLC (Jacksonville)Jacksonville, Florida, United StatesRecruiting
South Florida Research InstituteLauderdale Lakes, Florida, United StatesRecruiting
Panoramic Health - Florida Kidney Physicians, LLC (Melbourne)Melbourne, Florida, United StatesRecruiting
Bioresearch PartnersMiami, Florida, United StatesRecruiting
CTR Oakwater, LLCOrlando, Florida, United StatesRecruiting
Bioresearch PartnersPembroke Pines, Florida, United StatesRecruiting

+ 160 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06963827