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A Phase 3 Multicenter, Randomized, Double-Blind, Placebo Controlled Trial to Evaluate Efficacy and Safety of Mezagitamab (TAK-079) in Study Participants with Primary IgA Nephropathy in Combination with Stable Background Therapy

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-520825-19-00
Acronym
TAK-079-3001
Enrollment
83
Registered
2025-09-16
Start date
Unknown
Completion date
Unknown
Last updated
2025-11-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

IgAN is Primary Immunoglobulin A Nephropathy (IgAN) (also known as Berger's disease)

Brief summary

Change from baseline in proteinuria at Week 36 as assessed by a UPCR calculated from a 24-hour urine collection.

Detailed description

01. The change from baseline in eGFR at Week 52., 02. The rate of change in eGFR from baseline to Week 52; eGFR total slope at Week 52., 03. The change from baseline in eGFR at Week 104., 04. The rate of change in eGFR from baseline to Week 104; eGFR total slope at Week 104., 05. Time from baseline to the first occurrence of sustained decline in eGFR of ≥30% from baseline over at least 4 weeks., 06. Time from baseline to the first occurrence of any of the following outcomes based on the kidney failure composite endpoint: sustained decline in eGFR of ≥30% from baseline over at least 4 weeks; sustained eGFR <15 mL/min/1.73 m2 over at least 4 weeks; initiation of maintenance dialysis defined as dialysis performed for at least 4 weeks; receipt of kidney transplant; or death from kidney failure (Levin et al. 2020)., 07. Change from baseline in proteinuria levels as assessed by UPCR calculated from a 24-hour urine collection at Week 104., 08. Resolution of hematuria at Week 36., 09. Resolution of hematuria at Week 52., 10. Resolution of hematuria at Week 104, 11. Incidence of ADA., 12. Incidence of NAb., 13. The serum concentrations of mezagitamab during and after intervention.

Interventions

DRUGMezagitamab placebo-matching injection administered SC

Sponsors

Takeda Development Center Americas Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Change from baseline in proteinuria at Week 36 as assessed by a UPCR calculated from a 24-hour urine collection.

Secondary

MeasureTime frame
01. The change from baseline in eGFR at Week 52., 02. The rate of change in eGFR from baseline to Week 52; eGFR total slope at Week 52., 03. The change from baseline in eGFR at Week 104., 04. The rate of change in eGFR from baseline to Week 104; eGFR total slope at Week 104., 05. Time from baseline to the first occurrence of sustained decline in eGFR of ≥30% from baseline over at least 4 weeks., 06. Time from baseline to the first occurrence of any of the following outcomes based on the kidney failure composite endpoint: sustained decline in eGFR of ≥30% from baseline over at least 4 weeks; sustained eGFR <15 mL/min/1.73 m2 over at least 4 weeks; initiation of maintenance dialysis defined as dialysis performed for at least 4 weeks; receipt of kidney transplant; or death from kidney failure (Levin et al. 2020)., 07. Change from baseline in proteinuria levels as assessed by UPCR calculated from a 24-hour urine collection at Week 104., 08. Resolution of hematuria at Week 36., 09. Resoluti

Countries

Austria, Czechia, France, Germany, Hungary, Italy, Netherlands, Norway, Poland, Slovenia, Spain, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026