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A Phase 2, Randomized, Double‑blind, Placebo‑controlled, Dose‑finding Study to Evaluate the Efficacy and Safety of ALXN2050 in Adult Participants with Proliferative Lupus Nephritis (LN) or Immunoglobulin A Nephropathy (IgAN)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-504825-38-00
Acronym
ALXN2050-NEPH-201
Enrollment
35
Registered
2024-05-17
Start date
2022-04-15
Completion date
2024-11-14
Last updated
2025-02-20

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

Conditions

Lupus Nephritis (LN) Immunoglobulin A Nephropathy (IgAN)

Brief summary

Percentage change in proteinuria

Detailed description

1) Percentage change in proteinuria 2) Achieving > 30% and > 50% reduction in proteinuria 3)Change from baseline in eGFR 4)PK/PD - Observed plasma concentrations of ALXN2050 5)PK/PD - Absolute values and change from baseline in plasma Bb concentration and serum AP activity 6) Safety - Incidence of TEAEs and TESAEs 7) Safety - Changes from baseline in laboratory assessments LN Cohort Only: 8) Meeting the criteria for complete renal response (CRR) 9) Meeting the criteria for partial renal response

Interventions

DRUGALXN 2050
DRUGALXN2050 Placebo Tablets

Sponsors

Alexion Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Percentage change in proteinuria

Secondary

MeasureTime frame
1) Percentage change in proteinuria 2) Achieving > 30% and > 50% reduction in proteinuria 3)Change from baseline in eGFR 4)PK/PD - Observed plasma concentrations of ALXN2050 5)PK/PD - Absolute values and change from baseline in plasma Bb concentration and serum AP activity 6) Safety - Incidence of TEAEs and TESAEs 7) Safety - Changes from baseline in laboratory assessments LN Cohort Only: 8) Meeting the criteria for complete renal response (CRR) 9) Meeting the criteria for partial renal response

Countries

Germany, Italy, Spain

Outcome results

None listed

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