5527: Abatacept (CTLA4-Ig) for the Treatment of Relapsing, Non-Severe, Granulomatosis with Polyangiitis (Wegener's) (ABROGATE)

Status: Recruiting

For Diseases:

Granulomatosis with Polyangiitis (Wegener's)


GPA belongs to a family of diseases characterized by vasculitis (inflammation of blood vessels in your body). The cause of GPA is unknown, but we do know that it is a condition in which your body's own immune system is causing inflammation and injury to your own blood vessels and tissues. The degree of this inflammation and how GPA is affecting your blood vessels and tissues can be further viewed as being severe or non-severe.

Standard treatment of GPA is a combination of drugs including glucocorticoids (steroids such as prednisone) and a second drug to suppress the body's immune system. Despite these treatments, relapses occur in most people. Because of this, it is important to identify new treatment options that are effective and allow prednisone to be stopped, particularly for non-severe disease.

The purpose of this study is to find out whether the medication abatacept (which is also called Orencia or CTLA4-Ig) is effective in the treatment of non-severe, relapsing GPA.

About this Study

In this study, participants will be randomly assigned by chance (like flipping a coin) to either receive abatacept or a placebo (inactive solution that looks like the study medicine but it doesn't contain abatacept) injected subcutaneously (by syringe) combined with standard doses of prednisone. If you are already receiving methotrexate, azathioprine (also called Imuran), mycophenolate (also called cellcept or myfortic), or leflunomide (also called arava) you would continue taking the same dose of this medication.

While on the study, if your symptoms come back and you have a non-serious disease relapse or if you have not improved after 6 months of being on the study, you will have the option of receiving open label abatacept, which means that you will receive abatacept and there is no randomization and no placebo involved. The decision to receive open-label abatacept is your choice. If you decide not to receive this, you will stop all study medication treatment and be treated with the best medical approach as you and your Doctor decide upon.

Your total time on the study will range from 12 to 48 months (1-4 years). About 66 people will take part in this study across 30 medical centers in the US, Canada, Mexico, Europe and Australia.
At each study visit, you will receive the following:

  • Medical history review
  • Physical exam
  • Blood/urine tests
  • Study questionnaires

Target Enrollment:

To be eligible to participate, you must:

  1. have a diagnosis of GPA (also known as Wegener's)
  2. have presence of active non-severe GPA within the past 28 days
  3. be 15 years of age or older
  4. be willing and able to follow treatment and follow-up procedures
  5. be willing to use an effective means of birth control during this study
  6. be willing and able to give written informed consent

You are not eligible to participate if:

  • you have signs of an infection
  • you are pregnant or breastfeeding
  • you are infected with HIV, hepatitis C, hepatitis B or have active tuberculosis
  • you are not able to follow study guidelines
  • you are not able to give informed consent
  • you have significantly reduced number of blood cells
  • you have a poor kidney function
Participate in the ABROGATE Trial

In order to participate in this study, you must personally contact the study coordinator of any of the participating institutions by phone or by e-mail. Please use the information below to inquire about participation.


United States


  • Cedars-Sinai Medical Center, Los Angeles
    Bonnie Paul
    E-mail: Bonnie.Paul@cshs.org
    Phone: 310-423-2422
  • University of California San Francisco, San Francisco
    Sarah Goglin, MD
    E-mail: sarah.goglin@ucsf.edu



  • University of Kansas Medical Center, Kansas City
    Na Yu
    E-mail: nyu3@kumc.edu
    Phone: 913-588-6158


  • Boston University School of Medicine, Boston
    Eric Stratton
    E-mail: eas@bu.edu
    Phone: 617-638-5383



New York 

  • Hospital for Special Surgery, New York City
    Beemnet Amdemicael
    E-mail: amdemicaelb@hss.edu
    Phone: 212-774-2048


  • Cleveland Clinic, Cleveland
    Elizabeth Kisela
    E-mail: KISELAE@ccf.org
    Phone: 216-444-3290


  • Oregon Health & Science University (OHSU), Portland
    Marla Tamarit Calderon
    E-mail: tamarit@ohsu.edu
    Phone: 503-494-5742







British Columbia 

  • St. Pauls Rheumatology Clinic, Vancouver
    Marx Jayaraman
    E-mail: jjayaraman@cheos.ubc.ca
    Phone: 604-682-2344 ext. 63566


  • St. Joseph's Healthcare, Hamilton
    Sandra Messier
    E-mail: smessier@stjoes.ca
    Phone: 905-522-1155 Ext. 35873
  • The Ottawa Hospital, Otttawa
    Paula Patterson
    E-mail: ppatterson@toh.ca
    Phone: 613-738-8400 ext.81630
  • University of Toronto Mount Sinai Hospital, Toronto
    Judy Vendramini
    E-mail: Judy.vendramini@sinaihealthsystem.ca
    Phone: 416-586-4800 ext 5511


  • Medius Kliniken, Kirchheim unter Teck
    Nicole Hollinger
    E-mail: n.hollinger@medius-kliniken.de


United Kingom


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