CLassification of Axial SpondyloarthritiS Inception Cohort
CLASSIC
1 other identifier
observational
501
3 countries
20
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Dec 2019
Typical duration for all trials
20 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 12, 2019
CompletedFirst Posted
Study publicly available on registry
June 21, 2019
CompletedStudy Start
First participant enrolled
December 4, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 22, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
August 22, 2022
CompletedDecember 8, 2022
December 1, 2022
2.7 years
June 12, 2019
December 7, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Physician diagnosis of axial spondyloarthritis at the final diagnostic evaluation.
Physician will answer Yes or No.
6 weeks
Study Arms (1)
Prospective Cohort of Undiagnosed Back Pain
All consecutive patients referred to a rheumatologist with current undiagnosed back pain of ≥3 months duration with onset ≤45 years of age will comprise the prospective cohort. This is a classification study; no intervention will be administered
Eligibility Criteria
Undiagnosed back and/or buttock pain with onset ≤45 years and duration ≥ 3 months
You may qualify if:
- Undiagnosed back and/or buttock pain
- Back, buttock or hip discomfort in the week before the study visit
- Discomfort in the back, buttocks, or hips that has lasted at least three months.
- First symptoms of pain when patient was ≤ 45 years of age:
You may not qualify if:
- Patients with a known rheumatologist confirmed diagnosis of spondyloarthritis at the time of referral to the study-affiliated investigator.
- Patients with a history of spinal trauma in the past 3 months.
- 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)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Spondyloarthritis Research and Treatment Networklead
- AbbViecollaborator
- Amgencollaborator
- Janssen Scientific Affairs, LLCcollaborator
- Eli Lilly and Companycollaborator
- Novartis Pharmaceuticalscollaborator
- Pfizercollaborator
- UCB Pharmacollaborator
Study Sites (20)
VA Long Beach Healthcare System
Long Beach, California, 90822, United States
Sacramento VA Medical Center
Mather, California, 95655, United States
UCSF Medical Center - Rheumatology Clinic
San Francisco, California, 94143, United States
University of Colorado
Aurora, Colorado, 80045, United States
Yale University School of Medicine
New Haven, Connecticut, 06067, United States
Brigham & Women's Hospital
Boston, Massachusetts, 02115, United States
Boston University School of Medicine
Boston, Massachusetts, 02118, United States
University of Mississippi Medical Center
Jackson, Mississippi, 39216, United States
Columbia University
New York, New York, 10032, United States
James J. Peters VAMC
The Bronx, New York, 10468, United States
Cleveland Clinic
Cleveland, Ohio, 44195, United States
Oregon Health & Science University
Portland, Oregon, 97239, United States
Dallas VA Medical Center VANTHCS
Dallas, Texas, 75216, United States
University of Texas Health Science Center at Houston
Houston, Texas, 77030, United States
Seattle Rheumatology Associates
Seattle, Washington, 98122, United States
Artus Health Center
Vancouver, British Columbia, V5Z 1L9, Canada
The Ottawa Hospital
Ottawa, Ontario, K1H 7W9, Canada
University Health Network
Toronto, Ontario, M5T2S8, Canada
Centro de Estudios de Investigacion Basica y Clinica, SC
Guadalajara, Jalisco, 44690, Mexico
CLIDITER
Mexico City, Mexico City, 06700, Mexico
Related Publications (1)
Helliwell PS. 50 years of spondyloarthritis: a look back and a look ahead. Curr Opin Rheumatol. 2024 Jul 1;36(4):261-266. doi: 10.1097/BOR.0000000000001019. Epub 2024 Apr 24.
PMID: 38656252DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Walter P Maksymoywch, MD
Spondyloarthritis Research and Treatment Network
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- NETWORK
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 12, 2019
First Posted
June 21, 2019
Study Start
December 4, 2019
Primary Completion
August 22, 2022
Study Completion
August 22, 2022
Last Updated
December 8, 2022
Record last verified: 2022-12