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CLassification of Axial SpondyloarthritiS Inception Cohort
CLassification of Axial SpondyloarthritiS Inception Cohort

NCT03993847

CompletedN/A

Sponsor: Spondyloarthritis Research and Treatment Network

Conditions: Spondyloarthritis

Countries: United States, Canada, Mexico

A joint meeting of the ASAS (Assessment of Spondyloarthritis Internal Society) and SPARTAN (Spondyloarthritis Research and Treatment Network) executive boards recommended that the existing ASAS classification criteria for spondyloarthritis undergo further validation. SPARTAN is in charge of conducting a a prospective study of a North American cohort of patients presenting with undiagnosed active chronic back pain to rheumatologists in the US and Canada, and one site in Mexico. ASAS is in charge of conducting a similar study in Europe and other parts of the world.

Eligibility overview

Sex: ALL

Age: 18 Years to —

Healthy volunteers: No

Study type: OBSERVATIONAL

Eligibility criteria
Inclusion Criteria:

1. Undiagnosed back and/or buttock pain
2. Back, buttock or hip discomfort in the week before the study visit
3. Discomfort in the back, buttocks, or hips that has lasted at least three months.
4. First symptoms of pain when patient was ≤ 45 years of age:

Exclusion Criteria:

1. Patients with a known rheumatologist confirmed diagnosis of spondyloarthritis at the time of referral to the study-affiliated investigator.
2. Patients with a history of spinal trauma in the past 3 months.
3. Patients unable and/or unwilling to undergo MRI examination (embedded metallic fragments, pacemaker, joint replacement or similar hardware, too large (over 350 pounds unless their MRI can scan larger patients), claustrophobic)
Locations (20)
  • Long Beach, California, United States
  • Mather, California, United States
  • San Francisco, California, United States
  • Aurora, Colorado, United States
  • New Haven, Connecticut, United States
  • Boston, Massachusetts, United States
  • Boston, Massachusetts, United States
  • Jackson, Mississippi, United States
  • New York, New York, United States
  • The Bronx, New York, United States
  • Cleveland, Ohio, United States
  • Portland, Oregon, United States
  • Dallas, Texas, United States
  • Houston, Texas, United States
  • Seattle, Washington, United States
  • Vancouver, British Columbia, Canada
  • Ottawa, Ontario, Canada
  • Toronto, Ontario, Canada
  • Guadalajara, Jalisco, Mexico
  • Mexico City, Mexico City, Mexico