Condition
Microscopic Polyangiitis (MPA) clinical trials and research
As of November 12, 2026, Find a Trial lists 5 Microscopic Polyangiitis (MPA) clinical trials that are recruiting, at sites in 4 countries (most in United States (2), Canada (2), Japan (1)). By phase: Phase 3 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 5Clinical trials
- 4Countries
Newest Microscopic Polyangiitis (MPA) clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Ocular Symptoms in ANCA-Associated Vasculitis | — | Warsaw | Recruiting | Jun 24, 2026 |
| Low-dose steroid treatment with standard induction medicines for ANCA-associated vasculitis affecting the kidneys | Phase 3 | Hamilton, Ontario and 1 other locations | Recruiting | May 21, 2025 |
| Survey on long-term use of avacopan for certain autoimmune diseases | — | Multiple Locations | Recruiting | Jan 3, 2025 |
| Evaluating skin lesions in patients with various types of vasculitis | — | Los Angeles, California and 9 other locations | Recruiting | Dec 28, 2016 |
| Registry for women with vasculitis during pregnancy | — | Tampa, Florida | Recruiting | Nov 2, 2015 |
All recruiting trials (5)
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Ocular Symptoms in ANCA-Associated Vasculitis
This study tests ocular changes in adults with GPA, MPA, or related vasculitis to see how the eyes are involved.
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Low-dose steroid treatment with standard induction medicines for ANCA-associated vasculitis affecting the kidneys
This trial will test whether giving only 4 weeks of steroids together with usual induction medicines (cyclophosphamide or rituximab) helps people with ANCA-associated vasculitis that has severely affected the kidneys while reducing steroid-related harms.
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Survey on long-term use of avacopan for certain autoimmune diseases
This study looks at how well and safely avacopan works for Japanese patients with certain autoimmune diseases over a long time.
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Evaluating skin lesions in patients with various types of vasculitis
This study is testing how skin lesions from different types of vasculitis look under a microscope to help doctors better understand and treat these conditions.
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Registry for women with vasculitis during pregnancy
This study is gathering information from pregnant women with vasculitis to understand their experiences and health outcomes during and after pregnancy.
Related topics
Quick answers
How many Microscopic Polyangiitis (MPA) clinical trials are recruiting right now?
5, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 4 countries. The most sites are in United States (2 trials), Canada (2 trials), Japan (1 trial), Poland (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 3: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.