A Study to Evaluate the Effect of ARGX-121 on the Change in Proteinuria in Adult Participants With IgAN

Brief summary (registry, in English)

The study will assess how ARGX-121 affects immunoglobulin A nephropathy (IgAN) disease outcomes, such as renal function, how it is distributed and eliminated from the body, and how the immune system responds in adults with IgAN. While in the study, participants will continue to receive their usual medical care and medications for IgA nephropathy, unless the study doctor confirms otherwise. The study will include a double blinded period, followed by an active drug period, and conclude with a follow up period. The total study duration for participants will be approximately 72 weeks, with a maximum of 52 weeks on ARGX-121.

What you commit to

• Study type: Interventional · Phase 2
• Planned participants: 120
• From 5 Nov 2026 to the primary completion date, 29 Oct 2029
• 29 sites in 7 countries
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (29)

Sites in registry order. Pick your city on the disease page to sort them by distance.