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MPAPhase 3CHUSPAN2NCT00647166

Association Corticosteroid/Azathioprine in Microscopic Polyangiitis/ Polyarteritis Nodosa or Eosinophilic Granulomatosis With Polyangiitis (Churg Strauss Syndrome)

A Phase 3 study testing corticosteroid and azathioprine in people with MPA and PAN or EGPA With FFS=0, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To determine whether a combination of corticosteroids and azathioprine can achieve a higher remission rate and a lower subsequent relapse rate in patients with newly-diagnosed microscopic polyangiitis, polyarteritis nodosa or eosinophilic granulomatosis with polyangiitis (Churg Strauss syndrome) with no poor prognosis… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
corticosteroid and azathioprine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
114 participants
Where
1 siteFrance
Study dates
May 2008to Apr 2015
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • male or female patients
  • aged over 18 years
  • new diagnosis of microscopic polyangiitis, polyarteritis nodosa or eosinophilic granulomatosis with polyangiitis (Churg Strauss syndrome), satisfying ACR 1990 and/or Chapel Hill Nomenclature criteria (positive biopsy is not mandatory providing those criteria are fulfilled)
  • with no factor of poor prognosis according to the French five factors score (FFS=0)
  • at diagnosis or within the first 21 days following initiation of corticosteroids
  • signed information and consent form
  • patients covered by Health Insurance
  • having had a baseline physical examination

Who cannot join

  • patients with microscopic polyangiitis, polyarteritis nodosa or eosinophilic granulomatosis with polyangiitis (Churg Strauss syndrome) with one or more factor(s) of poor prognosis according to the French five factors score (FFS ≥ 1)
  • patients with polyarteritis nodosa with ANCA, not satisfying the criteria for microscopic polyangiitis
  • patients with clinically overt alveolar hemorrhage or respiratory distress syndrome
  • patient treated with corticosteroids for more than 15 days or already receiving another immunosuppressant
  • relapsing vasculitis
  • other vasculitis, especially secondary vasculitides
Show all 14Show fewer
  • vasculitis secondary or associated with a viral infection, such as hepatitis B or C virus, or HIV
  • malignancy
  • pregnancy and breast feeding,women of child-bearing age not willing or with contra-indication to receive contraception
  • contra-indication to any of the study agents
  • need to continue allopurinol for those patients taking allopurinol
  • consent deny or inability to receive information and give consent
  • participation in another concomitant therapeutic trial
  • no affiliation to any of the general French health care system

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hopital Cochin Pôle de Médecine UF Médecine Interne

    Paris, 75014

Other trials in France

About this study

Official title: Evaluation of a New Treatment Strategy for Patients With Microscopic Polyangiitis, Polyarteritis Nodosa or Eosinophilic Granulomatosis With Polyangiitis (Churg Strauss Syndrome) Without Poor Prognosis Factors

To determine whether a combination of corticosteroids and azathioprine can achieve a higher remission rate and a lower subsequent relapse rate in patients with newly-diagnosed microscopic polyangiitis, polyarteritis nodosa or eosinophilic granulomatosis with polyangiitis (Churg Strauss syndrome) with no poor prognosis factor (FFS=0), and without significantly increasing the rate of adverse events, as compared to corticosteroids alone. The study hypothesis is a reduction of the absolute risk of treatment failure or relapse within the first 24 months following initiation of therapy of least 25%.

Read the detailed description

Patients with new diagnosis of 1) microscopic polyangiitis, polyarteritis nodosa or eosinophilic granulomatosis with polyangiitis (Churg Strauss syndrome) and 2) without any factor of poor prognosis according to the French five factors score (FFS - including creatininemia >140µmol/l, proteinuria >1 g/24 h, specific gastro-intestinal involvement, specific cardiomyopathy, and CNS involvement) can be included at diagnosis or within the first 15 days following initiation of corticosteroids. Treatment is randomly assigned, centrally, and received in a double-blinded fashion. It consists in a combination of azathioprine (2 mg/kg/day) and corticosteroids (starting at 1 mg/kg/day for 3 weeks then progressively tapered over a mean of 50 weeks, varying according to patient's weight) or, for the control group, the same corticosteroid therapy plus placebo. Duration of azathioprine or placebo is 12 months, and patients are followed for 12 additional months, yielding in a total duration of the protocol of 24 months after entry for each patient. End point is the number of patients who achieve sustained remission and who do not suffer a relapse during the 24 months of the study protocol. Based on the results of the early CHUSPAN trial for similar patients treated with corticosteroids alone, the cumulative rate of failures and relapses can be estimated at 40% at 24 months. The primary hypothesis of the CHUSPAN 2 is a reduction by at least 25% for the rate of this combined parameter of remission-treatment failure and relapse at 24 months. Based on this hypothesis, using a bilateral test, with a significance level of 5%, a beta level of 80% and an estimated 5% of lost-of-follow-up, 104 patients must be included. Secondary end points include the initial remission rate (independently of subsequent relapses), rate of adverse events and their severity according to the WHO toxicity grading system, number of deaths, number of patients who could not be weaned of corticosteroids, area under the curve for corticosteroids, and different scales, such as BVAS (activity of the disease), VDI (damage), HAQ, SF36, ADL and the evaluation of the need for health care facilities.

Being tested
corticosteroid and azathioprine, corticosteroid and placebo
Keywords
Vasculitis, Polyarteritis nodosa (PAN), Microscopic polyangiitis (MPA), Eosinophilic granulomatosis with polyangiitis (EGPA), Churg Strauss syndrome (CSS), Azathioprine
Medical subject headings
Polyarteritis Nodosa, Vasculitis, Microscopic Polyangiitis, Churg-Strauss Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • corticosteroid and azathioprineDrug

    • Corticosteroid 1 mg/kg/day with a conventional decrease dose
    • Azathioprine : 2 mg/kg/day during one year in 2 to 3 times a day by oral route
  • corticosteroid and placeboDrug

    • Corticosteroid 1 mg/kg/day with a conventional decrease dose
    • Placebo : 2 mg/kg/day during one year in 2 to 3 times a day by oral route
Study groups in NCT00647166
Study groupRoleWhat they receive
1ExperimentalDrug: corticosteroid and azathioprine
Receives: Drug: corticosteroid and azathioprine
2Placebo comparatorDrug: corticosteroid and placebo
Receives: Drug: corticosteroid and placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. combined rate of remission-treatment failures and minor or major relapses at 24 months

    Measured: 24 months

Secondary outcomes (10)
  1. initial remission rate (independently of subsequent relapse)

    Measured: 24 months

  2. number of patients who have a minor or major relapse

    Measured: 24 months

  3. number of serious treatment-related adverse effects

    Measured: 24 months

  4. number of patients with at least one treatment-related adverse effect

    Measured: 24 months

  5. severity of treatment-related effects according to the WHO toxicity grading system (grades 1 to 4; grades 3 and 4 for the severity)

    Measured: 24 months

  6. number of deaths and causes

    Measured: 24 months

  7. number of patients who could not be weaned of corticosteroids and dose required

    Measured: 24 months

  8. area under the curve for corticosteroids

    Measured: 24 months

  9. different scales, such as BVAS (activity of the disease), VDI (damage), HAQ, SF36, ADL and the evaluation of the need for health care facilities.

    Measured: 24 months

  10. number of flares with or without asthma and/or eosinophilia (only for EGPA analysis)

    Measured: 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Mar 2008 (estimated)
  2. Study startMay 2008
  3. Primary completionMar 2015
  4. Study completionApr 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
114 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00647166
Sponsor's protocol ID
P 060243
Acronym
CHUSPAN2
Status last verified
Sep 2025
First submitted
26 Mar 2008
Last updated
12 Sep 2025
Results posted
No
Data monitoring committee
Yes

Publications

  • Puechal X, Pagnoux C, Baron G, Quemeneur T, Neel A, Agard C, Lifermann F, Liozon E, Ruivard M, Godmer P, Limal N, Mekinian A, Papo T, Ruppert AM, Bourgarit A, Bienvenu B, Geffray L, Saraux JL, Diot E, Crestani B, Delbrel X, Sailler L, Cohen P, Le Guern V, Terrier B, Groh M, Le Jeunne C, Mouthon L, Ravaud P, Guillevin L; French Vasculitis Study Group. Adding Azathioprine to Remission-Induction Glucocorticoids for Eosinophilic Granulomatosis With Polyangiitis (Churg-Strauss), Microscopic Polyangiitis, or Polyarteritis Nodosa Without Poor Prognosis Factors: A Randomized, Controlled Trial. Arthritis Rheumatol. 2017 Nov;69(11):2175-2186. doi: 10.1002/art.40205. Epub 2017 Oct 15.

    PubMed 28678392
  • Puechal X, Pagnoux C, Baron G, Lifermann F, Geffray L, Quemeneur T, Saraux JL, Wislez M, Cottin V, Ruivard M, Limal N, Aouba A, Bonnotte B, Neel A, Agard C, Cohen P, Terrier B, Le Jeunne C, Mouthon L, Ravaud P, Guillevin L; French Vasculitis Study Group investigators. Non-severe eosinophilic granulomatosis with polyangiitis: long-term outcomes after remission-induction trial. Rheumatology (Oxford). 2019 Dec 1;58(12):2107-2116. doi: 10.1093/rheumatology/kez139.

    PubMed 31056661

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing corticosteroid and azathioprine in people with MPA and PAN or EGPA With FFS=0, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

combined rate of remission-treatment failures and minor or major relapses at 24 months (time frame: 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00647166, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Sep 2025.

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