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A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study of Povetacicept in Adults with Immunoglobulin A Nephropathy (RAINIER).

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-514135-17-00
Acronym
AIS-D08
Enrollment
190
Registered
2024-11-11
Start date
2024-11-28
Completion date
Unknown
Last updated
2025-09-29

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

Conditions

Immunoglobulin A Nephropathy

Brief summary

1. Change From Baseline in 24-hour Urine Protein to Creatinine Ratio (uPCR) at Week 36 [Time Frame: From Baseline at Week 36]., 2. Total Estimated Glomerular Filtration Rate (eGFR) Slope Through Week 104 [Time Frame: From Baseline Through Week 104].

Detailed description

1. Change From Baseline in eGFR at Week 104 [Time Frame: From Baseline at Week 104]., 2. Time to Kidney Disease Progression Through Week 104 Kidney disease progression defined as greater than or equal to (≥) 30% decline in eGFR, end stage kidney disease, or death from kidney failure. [Time Frame: From Baseline Through Week 104]., 3. Change From Baseline in Functional Assessment of Chronic Illness Therapy-Fatigue Score at Week 104 [Time Frame: From Baseline at Week 104].

Interventions

Sponsors

Alpine Immune Sciences Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
1. Change From Baseline in 24-hour Urine Protein to Creatinine Ratio (uPCR) at Week 36 [Time Frame: From Baseline at Week 36]., 2. Total Estimated Glomerular Filtration Rate (eGFR) Slope Through Week 104 [Time Frame: From Baseline Through Week 104].

Secondary

MeasureTime frame
1. Change From Baseline in eGFR at Week 104 [Time Frame: From Baseline at Week 104]., 2. Time to Kidney Disease Progression Through Week 104 Kidney disease progression defined as greater than or equal to (≥) 30% decline in eGFR, end stage kidney disease, or death from kidney failure. [Time Frame: From Baseline Through Week 104]., 3. Change From Baseline in Functional Assessment of Chronic Illness Therapy-Fatigue Score at Week 104 [Time Frame: From Baseline at Week 104].

Countries

Austria, Belgium, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Latvia, Lithuania, Netherlands, Norway, Poland, Spain, Sweden

Outcome results

None listed

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