Trial of Efficacy and Safety of NS-229 Versus Placebo in Patients With Eosinophilic Granulomatosis With Polyangiitis

NCT ID: NCT06046222

Last Updated: 2025-05-22

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

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-20

Study Completion Date

2026-07-31

Brief Summary

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This study will enroll male and female subjects who are 18 years of age or older with Eosinophilic Granulomatosis With Polyangiitis.

Detailed Description

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The purpose of this randomized, double-blind study is to investigate the efficacy and safety of NS229 compared with placebo over a 28-week study treatment period in subjects with Eosinophilic Granulomatosis with Polyangiitis (EGPA) receiving background corticosteroid therapy with or without Mepolizumab/Benralizumab therapy. During the treatment period corticosteroid dose will be tapered.

The key outcomes in the study focus on evaluation of clinical remission, defined as Birmingham Vasculitis Activity Score (BVAS)=0 with a corticosteroid dose of \<=4 mg/day prednisolone/prednisone.

Conditions

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Eosinophilic Granulomatosis With Polyangiitis Churg-Strauss Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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NS-229

Self-administer NS-229 in consecutive 28 weeks.

Group Type EXPERIMENTAL

NS-229

Intervention Type DRUG

Experimental

Placebo

Self-administer matching placebo in consecutive 28 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo comparator

Interventions

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NS-229

Experimental

Intervention Type DRUG

Placebo

Placebo comparator

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Ability to provide written informed consent prior to participation in the study.
* Male or female subjects aged ≥18 years at the time the informed consent form is signed.
* Diagnosis of EGPA: Subjects who have been diagnosed with EGPA based on the history or presence of eosinophilia plus at least a history or presence of 2 of additional features of EGPA.
* Subjects receive background OGC dose of ≥7.5 mg/day with or without stable treatment with Mepolizumab/Benralizumab.
* Use of adequate contraception.

Exclusion Criteria

* Current diagnosis of either granulomatosis with polyangiitis or microscopic polyangiitis
* Imminently life-threatening EGPA at the time of screening.
* History or presence of any form of cancer within 5 years prior to screening.
* Serious liver, renal, blood, or psychiatric disease
* Severe or clinically significant cardiovascular disease uncontrolled with standard treatment
* Active systemic infections (including TB, pneumonia, Pneumocystis pneumonia, sepsis, and opportunistic infections)
* Parasitic infection: Subjects with a known parasitic infestation within 6 months prior to screening.
* HIV positive status
* Active hepatitis due to hepatitis B virus or hepatitis C virus
* Known history or presence of venous thromboembolism/venous thrombotic events (deep vein thrombosis and/or pulmonary embolus)
* laboratory parameter exclusions:

1. Estimated glomerular filtration rate of \<30 mL/min/1.73 m2 by Chronic Kidney Disease Epidemiology Collaboration equations
2. WBC count \<4 × 109/L
3. Absolute lymphocyte count \<500 cells/mm3
4. Absolute neutrophil count \<1000 cells/mm3
5. Platelet count \<120,000/mm3
6. Hemoglobin \<8 g/dL (\<80 g/L)
* Subjects who are pregnant, breastfeeding, or planning to become pregnant during the time of study participation
* History of clinically significant drug or alcohol abuse within the last 6 months
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Nippon Shinyaku Co., Ltd.

INDUSTRY

Sponsor Role collaborator

NS Pharma, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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National Jewish Health

Denver, Colorado, United States

Site Status RECRUITING

Mayo Clinic

Rochester, Minnesota, United States

Site Status RECRUITING

Cleveland Clinic

Cleveland, Ohio, United States

Site Status RECRUITING

The Ohio State University Wexner Medical Center

Columbus, Ohio, United States

Site Status RECRUITING

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Medical University of South Carolina

Charleston, South Carolina, United States

Site Status RECRUITING

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status RECRUITING

University of Alberta

Edmonton, Alberta, Canada

Site Status RECRUITING

St Joseph's Healthcare Hamilton

Hamilton, Ontario, Canada

Site Status RECRUITING

University of Toronto

Toronto, Ontario, Canada

Site Status RECRUITING

CHU Nice

Nice, , France

Site Status RECRUITING

Hopital Cochin

Paris, , France

Site Status RECRUITING

Chu Rangueil

Toulouse, , France

Site Status RECRUITING

Medius Kliniken gGmbh

Kirchheim unter Teck, Studienzentrale, Germany

Site Status RECRUITING

Istituto Auxologico Italiano IRCCS

Milan, , Italy

Site Status RECRUITING

Fondazione Policlinico Universitario Campus Bio-Medico

Roma, , Italy

Site Status RECRUITING

Azienda Provinciale per i Servizi Sanitari Provincia Autonoma Trento

Trento, , Italy

Site Status RECRUITING

Azienda Ospedaliera Universitaria Integrata Verona

Verona, , Italy

Site Status RECRUITING

Chiba University Hospital

Chuo-ku, Chiba-shi, Chiba, Japan

Site Status RECRUITING

Hospital of the University of Occupational and Environmental Health, Japan

Kitakyushu, Fukuoka, Japan

Site Status RECRUITING

Hokkaido University Hospital

Sapporo, Hokkaido, Japan

Site Status RECRUITING

NHO Sagamihara National Hospital

Sagamihara, Kanagawa, Japan

Site Status RECRUITING

National Hospital Organization Yokohama Medical Center

Yokohama, Kanagawa, Japan

Site Status RECRUITING

Tohoku University Hospital

Sendai, Miyagi, Japan

Site Status RECRUITING

Osaka Habikino Medical Center

Habikino, Osaka, Japan

Site Status RECRUITING

Saitama Medical Center

Kawagoe, Saitama, Japan

Site Status RECRUITING

Juntendo University Hospital

Bunkyo-ku, Tokyo, Japan

Site Status RECRUITING

Kyorin University Hospital

Mitaka, Tokyo, Japan

Site Status RECRUITING

Toho University Omori Medical Center

Ōta-ku, Tokyo, Japan

Site Status RECRUITING

Complejo Hospitalario Universitario de Santiago de Compostela

Santiago de Compostela, A Coruna, Spain

Site Status RECRUITING

Complejo Hospitalario de Navarra

Pamplona, , Spain

Site Status RECRUITING

Queen Elizabeth Hospital Birmingham

Edgbaston, Birmingham, United Kingdom

Site Status RECRUITING

Addenbrookes Hospital

Cambridge, , United Kingdom

Site Status RECRUITING

Royal Berkshire NHS Foundation Trust

Reading, , United Kingdom

Site Status RECRUITING

Countries

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United States Canada France Germany Italy Japan Spain United Kingdom

Central Contacts

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NS Pharma, Inc.

Role: CONTACT

1-866-677-4276

Other Identifiers

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NS229-P2-01

Identifier Type: -

Identifier Source: org_study_id

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