Spondyloarthritis & psoriatic arthritis

Performance of cut-offs of the ASAS Health Index to discriminate between treatment groups in patients with axial spondyloarthritis in the TICOSPA trial

Semin Arthritis RheumPublished Secondary analysis of the TICOSPA randomised trial

Authors' conclusion

The data-driven thresholds of the ASAS HI identified in a longitudinal observational setting perform well in the context of a randomized trial.

Study context

Population
Patients with active axSpA treated in the TICOSPA randomised study; data from baseline and week 48all had ASAS HI data
Participants
160 patients
Comparison
Performance of ASAS HI improvement and health-state thresholds in discriminating between trial arms and between responders and non-responders
Primary endpoint
Trial and longitudinal known group discrimination of ASAS HI thresholds of meaning for improvement and health states
Follow-up
Week 48
Methodological detailstight-controlled, treat-to-target trial, non-responder imputation (NRI) for missing data
  • Tight-controlled, treat-to-target trial
  • NRI for missing data

Primary result

As reported in the abstract

Trial discrimination of ASAS HI thresholds

OR range, absolute improvement outcomes

1.27 and 1.75

OR range, relative improvement outcomes

1.0 and 1.64

Further findings

Longitudinal discrimination: ASAS HI improvement ≥30 % or ≥ 3.0 points vs no significant improvement in global functioning

Larger reduction in patient global and disease activity and more often remission

Health state: ASAS HI ≤ 5.0 achieved vs not achieved · week 48

More likely to have ASAS partial remission, ASDAS inactive disease or ASDAS low activity

Original publication

Performance of cut-offs of the ASAS Health Index to discriminate between treatment groups in patients with axial spondyloarthritis in the TICOSPA trial. Semin Arthritis Rheum. Published 30 August 2024. doi:10.1016/j.semarthrit.2024.152542

Composed by AI from the published abstract and checked against it. How Briefs are made →

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