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Microscopic polyangiitis

MONDO:0019124

Microscopic polyangiitis (MPA) is an inflammatory, necrotizing, systemic vasculitis that affects predominantly small vessels (i.e. small arteries, arterioles, capillaries, venules) in multiple organs.

Also known as: MPA, Micropolyangiitis, microscopic polyarteritis

36 clinical trials for this condition and its sub-types, 34 tagged with Microscopic polyangiitis itself.

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Where it sits in the disease tree

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Part of

↑ Anti-neutrophil cytoplasmic antibody-associated vasculitis (130) ↑ Arteritis (104)

Including sub-types (36) Tagged with Microscopic polyangiitis (34)

Trials to join now! 13 Not yet recruiting 1 Not yet finished but already full! 5 Completed 13 Terminated 2

Can early rituximab stop vasculitis relapses? new study aims to find out

Disease control Not yet recruiting

This study looks at whether giving the drug rituximab early, when signs of the disease reappear in the blood, can prevent relapses in people with certain types of vasculitis (GPA and MPA). About 70 adults who have been on maintenance rituximab for at least 18 months will be rando…

Phase 4 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Disease control

Last updated Jun 27, 2026 09:10 UTC

Microscopic polyangiitis

Where it sits in the disease tree

Can early rituximab stop vasculitis relapses? new study aims to find out