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Completed Phase 2 Interventional Results available

Abatacept for Treating Adults With Giant Cell Arteritis and Takayasu's Arteritis

ClinicalTrials.gov ID: NCT00556439

Public ClinicalTrials.gov record NCT00556439. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 21, 2026, 6:47 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Concurrent Pilot Studies in Giant Cell Arteritis and Takayasu's Arteritis to Examine the Safety, Efficacy, and Immunologic Effects of Abatacept (CTLA4-Ig) in Large Vessel Vasculitis

Study identification

NCT ID
NCT00556439
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Enrollment
97 participants

Conditions and interventions

Interventions

  • Abatacept Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
15 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 30, 2008
Primary completion
Jul 31, 2015
Completion
Jul 31, 2015
Last update posted
Feb 25, 2018

2008 – 2015

United States locations

U.S. sites
8
U.S. states
8
U.S. cities
8
Facility City State ZIP Site status
Cedars-Sinai Medical Center Los Angeles California 90048
Johns Hopkins Medical Center Baltimore Maryland 21224
Boston University Boston Massachusetts 02118
Mayo Clinic Rochester Minnesota 55905
Hospital for Special Surgery New York New York 10021
Cleveland Clinic Cleveland Ohio 44195
University of Pittsburgh Pittsburgh Pennsylvania 15261
University of Utah Salt Lake City Utah 84132

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00556439, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 25, 2018 · Synced Jul 21, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00556439 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →