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Use of MRI and PET for Assessing Disease Activity in Takayasu's Arteritis

This study is currently recruiting participants. (see Contacts and Locations)
Verified May 2017 by Peter Merkel, University of Pennsylvania
Office of Rare Diseases (ORD)
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Rare Diseases Clinical Research Network
Information provided by (Responsible Party):
Peter Merkel, University of Pennsylvania Identifier:
First received: August 29, 2008
Last updated: May 1, 2017
Last verified: May 2017
Assessing disease activity in people with Takayasu's arteritis is difficult, as most people with the disease do not exhibit visible, measurable symptoms. Combination positron emission tomography/computed axial tomography (PET/CT) is a particularly sensitive, accurate scanning method that may improve researchers' ability to evaluate people with the disease. This study will determine the effectiveness of PET/CT in assessing disease activity in people with Takayasu's arteritis.

Takayasu Arteritis

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: VCRC Imaging Protocol for Magnetic Resonance and Positron Emission Tomography in Large-vessel Vasculitis (Takayasu's Arteritis):Development as Clinical Trial Outcome Measures

Resource links provided by NLM:

Further study details as provided by Peter Merkel, University of Pennsylvania:

Primary Outcome Measures:
  • Disease activity [ Time Frame: Measured throughout the study ]

Estimated Enrollment: 36
Actual Study Start Date: August 2008
Estimated Study Completion Date: August 2018
Estimated Primary Completion Date: August 2018 (Final data collection date for primary outcome measure)
Detailed Description:

Takayasu's arteritis is a rare inflammatory disease that affects the aorta and its branches. The disease is much more common in females than in males, and disease onset typically occurs between the ages of 15 and 30. People with this disease often experience general discomfort, fatigue, fever, night sweats, weight loss, and joint pain. In the late stages of the disease, weak arterial walls may lead to aneurysms. Many patients do not exhibit any visible symptoms until this point, however. Because many people with Takayasu's arteritis do not have overt disease symptoms, the assessment of disease activity is difficult. Laboratory tests can help, but are often unreliable. Novel approaches to assessing disease activity are urgently needed to enhance and facilitate research on Takayasu's arteritis. This study will determine the effectiveness of combination positron emission tomography/computed axial tomography (PET/CT) in assessing disease activity in people with Takayasu's arteritis.

Participants in this study will enroll while their disease is active. The first PET/CT scan will take place upon study entry, while there is active disease. Participants will have a second PET/CT scan 3 months later, and a third scan 3 months after that if there is still active disease present. Participants will have a maximum of 3 scans unless a scan needs to be repeated because of technical failures, though this does not often happen. If there is no active disease at the time of the second scan, a third scan will not be done. All PET/CT scans will be scheduled within 10 days of participants' routine MRI scans. This study will not require any follow-up visits.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Participants in this study will have been diagnosed with Takayasu's arteritis and will be currently enrolled in the Vasculitis Clinical Research Consortium (VCRC) Longitudinal Study #5503.

Inclusion Criteria:

  • Diagnosis of Takayasu's arteritis, as defined by the VCRC Longitudinal Study #5503
  • Currently enrolled in the VCRC Longitudinal Study #5503
  • Active disease has occurred in conjunction with a disease relapse within 2 weeks before study entry (A detailed definition of "active disease" is available in the study protocol.)
  • Willing and able to comply with the schedule for imaging studies and follow-up procedures

Exclusion Criteria:

  • Pregnant or breastfeeding
  • Unable to comply with study guidelines
  • Unable to safely undergo MRI scanning
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00744952

United States, Massachusetts
Boston University School of Medicine Recruiting
Boston, Massachusetts, United States, 02118
Contact: Naomi Amudala, NP    617-414-2512   
Principal Investigator: Paul Monach, MD, PhD         
United States, Minnesota
Mayo Clinic Recruiting
Rochester, Minnesota, United States, 55905
Contact: Jane Jaquith    507-284-4502   
Principal Investigator: Steven Ytterberg, MD         
United States, Ohio
Cleveland Clinic Foundation Recruiting
Cleveland, Ohio, United States, 44195
Contact: Katie Gartner    216-445-1397   
Principal Investigator: Carol Langford, MD, MHS         
Canada, Ontario
St. Joseph's Healthcare Recruiting
Hamilton, Ontario, Canada
Contact: Sandra Messier   
Principal Investigator: Nader Khalidi, MD, FRCPC         
Mount Sinai Hospital, Toronto Recruiting
Toronto, Ontario, Canada, M5L 3L9
Contact: Samyukta Jagadeesh    416-586-8616   
Principal Investigator: Simon Carette, MD         
Sponsors and Collaborators
Peter Merkel
Office of Rare Diseases (ORD)
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Rare Diseases Clinical Research Network
Study Chair: Peter A. Merkel, MD, MPH University of Pennsylvania
  More Information

Additional Information:
Responsible Party: Peter Merkel, Professor, University of Pennsylvania Identifier: NCT00744952     History of Changes
Other Study ID Numbers: VCRC5515
U54AR057319 ( US NIH Grant/Contract Award Number )
Study First Received: August 29, 2008
Last Updated: May 1, 2017

Keywords provided by Peter Merkel, University of Pennsylvania:
Large-vessel vasculitis

Additional relevant MeSH terms:
Takayasu Arteritis
Aortic Arch Syndromes
Aortic Diseases
Vascular Diseases
Cardiovascular Diseases
Skin Diseases, Vascular
Skin Diseases processed this record on May 25, 2017