Comparison of the Efficacy of Leflunomide and Azathioprine for the Maintenance Therapy of ANCA Associated Vasculitis

NCT ID: NCT04737343

Last Updated: 2021-11-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

114 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-06-30

Study Completion Date

2024-12-31

Brief Summary

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This study is a prospective, open-labelled, randomized, controlled,multi-center clincial trial. The aim of this study is to verify that the remission rate of patients treated with Leflunomide is not inferior to that of patients treated with Azathioprine.

Detailed Description

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Background The basic theme of AAV is relapse and remission. The maintenance therapy of AAV aimed to reduce or prevent relapse is very challenge. Although many medications have been used for the maintenance of AAV, Leflunomide (LEF) has not studied thoroughly yet. So far, only one study tested the efficacy of LEF in the maintenance therapy for AAV. However, the sample size of this study is small, so large size clinical study is needed to clarify the role of LEF in the maintenance of AAV.

LEF is one of the most frequently prescribed DMARDs in the treatment of rheumatic diseases in China. It is cheap and widely available. Many experiences have been accumulated about its efficacy and safety in Chinese patients with rheumatic diseases. But there is no study to show its effectiveness in the reduction of the relapse of AAV in China. In this study, we try to compare the effectiveness of LEF and AZA, the gold standard for maintenance therapy, in the maintenance of AAV.

Objectives To verify that the effectiveness of LEF in reducing relapse is not inferior to AZA by comparing the relapse rate of LEF and AZA during the 18 month maintenance treatment of AAV.

Study Design This is a prospective, randomized, open-label, control, non-inferiority study.

Conditions

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ANCA Associated Vasculitis Maintenance Therapy

Keywords

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ANCA Associated Vasculits Azathioprine Leflunomide Maintenance

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

prospective, randomized, open-label, control, non-inferiority study
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Azathioprine treatment arm

Patients will be treated with Azathioprine 100mg QD for 18 months combined with rednisone. The dosage of prednisone is tapered in the study period but will be maintained at 7.5mg/d to the end of the study period.All included patients will be treated with TMPco 2 tablets everyday during the study period if not contraindicated or intoleran.t

Group Type ACTIVE_COMPARATOR

Azathioprine Tablets

Intervention Type DRUG

Patients included into this study will be treated with Azathioprine tablets 100mg QD for 18 months.

Leflunomide treatment arm

Patient will be treated with Leflunomide 30mg QD for 18 months combined with prednisone. The dosage of prednisone is tapered in the study period but will be maintained at 7.5mg/d to the end of the study period. All included patients will be treated with TMPco 2 tablets everyday during the study period if not contraindicated or intolerant.

Group Type EXPERIMENTAL

Leflunomide

Intervention Type DRUG

Patient will be treated with Leflunomide(Tuoshu, the commericial name) 30mg QD for 18 months

Interventions

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Leflunomide

Patient will be treated with Leflunomide(Tuoshu, the commericial name) 30mg QD for 18 months

Intervention Type DRUG

Azathioprine Tablets

Patients included into this study will be treated with Azathioprine tablets 100mg QD for 18 months.

Intervention Type DRUG

Other Intervention Names

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Tuoshu for commericial name

Eligibility Criteria

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Inclusion Criteria

1. Patients age 18 to 75 years, both genders can be included.
2. Patients who are newly diagnosed or relapsing granulomatosis with polyangiitis, microscopic polyangiitis, or EGPA in complete remission after combined treatment with glucocorticoids and pulse cyclophosphamide or Rituximab. Remission is defined as a Birmingham Vasculitis Activity Score(BVAS version 3) of 0.
3. Patients must fulfill the 1990 ACR classification criteria of GPA, EGPA and 2012 modified Chapel Hill classification criteria of MPA.
4. Patients have to be ANCA-positive at diagnosis or during the course of their disease.
5. Patients must sign the informed consent.

Exclusion Criteria

1. Patients with TPMT gene mutation;
2. Patients who had been treated with either AZA or LEF but relapsed in the past;
3. Patients who had been treated with either AZA or LEF but had to stop due to adverse events or intolerance;
4. Patients who have planned for pregnancy in next 2 years;
5. Patients with severe liver dysfunction(defined as the elevation of liver enzyme 3 times the upper limit or Child grade III) or ESRD;
6. Patients with uncontrolled sever hypertension, diabetes, active bacteria or fungal infection;
7. Patients with active hepatitis virus infection as well as patients who have active mycobacteria infection;
8. Patients who are not eligible according to the judge of the principal investigators or site investigators.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Shanghai Zhongshan Hospital

OTHER

Sponsor Role collaborator

Affiliated Hospital of Jilin University, Changchun,China

UNKNOWN

Sponsor Role collaborator

Second Affiliated Hospital of Nanchang University

OTHER

Sponsor Role collaborator

The First Affiliated Hospital of Anhui Medical University

OTHER

Sponsor Role collaborator

Beijing Shijitan Hospital, Capital Medical University

OTHER

Sponsor Role collaborator

The Affiliated Hospital of Inner Mongolia Medical University

OTHER

Sponsor Role collaborator

First Affiliated Hospital of Kunming Medical University

OTHER

Sponsor Role collaborator

Sichuan Province People's Hospital

UNKNOWN

Sponsor Role collaborator

Second Affiliated Hospital, School of Medicine, Zhejiang University

OTHER

Sponsor Role collaborator

Chinese SLE Treatment And Research Group

OTHER

Sponsor Role lead

Responsible Party

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Xinping Tian

Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Xinping Tian

Role: PRINCIPAL_INVESTIGATOR

Peking Unione Mdecial College Hospital

Locations

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AnHui provincial hospital

Hefei, Anhui, China

Site Status NOT_YET_RECRUITING

the Affiliated Hospital of Inner Mongolia Medical University

Hohhot, Inner Mongolia, China

Site Status NOT_YET_RECRUITING

the Affiliated Hospital of Kunming Medical University

Kunming, Yunnan, China

Site Status NOT_YET_RECRUITING

Peking Union Medical College Hospital

Beijing, , China

Site Status RECRUITING

Countries

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China

Central Contacts

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Yunjiao Yang, MD

Role: CONTACT

Phone: 86-13671313079

Email: [email protected]

Hanqi Wang, RN

Role: CONTACT

Phone: 86-15810927696

Email: [email protected]

Facility Contacts

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Li Wang, MD

Role: primary

Xiangpei Li, MD

Role: backup

Hongbin Li, MD

Role: primary

Ning Tie, MD

Role: backup

Jian Xu, MD

Role: primary

Shu Li, MD

Role: backup

Xinping Tian, MD

Role: primary

Hanqi Wang, RN

Role: backup

Other Identifiers

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CSTAR-006

Identifier Type: -

Identifier Source: org_study_id