Spondyloarthritis & psoriatic arthritis

Residual Disease Activity in Canadian Patients With Psoriatic Arthritis Treated With Advanced Therapies: Results From a Multiregistry Analysis (UNISON-PsA)

J RheumatolPublished Retrospective cohort study

Authors' conclusion

There is substantial burden and unmet need for improved therapies for Canadians with PsA.

Study context

Population
Canadian patients with psoriatic arthritis (PsA) who initiated advanced therapy between January 2010 and December 2019 (Rhumadata and International Psoriasis and Arthritis Research Team (IPART) registries)
Participants
1,596 patients
Exposure
Ontario vs Western Canada vs Quebec vs Atlantic/East
Outcome
Proportion of patients failing to achieve MDA
Follow-up
Within 6 months
Methodological detailsmultiregion, observational, multiregistry (Rhumadata and IPART)
  • Multiregion
  • Observational
  • Multiregistry (Rhumadata and IPART)

Main finding

As reported in the abstract

Failure to achieve MDA within 6 months of an advanced therapy

Observational data: associations, not effects.

Secondary outcomes

OutcomeWestern CanadaAtlantic/East
Continuing functional impairment24%83.3%
  • Continuing functional impairment: range across regions, lowest in the West, highest in the Atlantic/East

Failure to achieve minimal disease activity (MDA) by treatment class (IL-17i vs TNFi) · within 6 months

Failure to achieve MDA higher with IL-17i than TNFi in all regions except the Atlantic/East

Patient-reported pain · 6 months

Proportion reporting pain across regions
73.2% to 78.6%

Original publication

Residual Disease Activity in Canadian Patients With Psoriatic Arthritis Treated With Advanced Therapies: Results From a Multiregistry Analysis (UNISON-PsA). J Rheumatol. Published 15 February 2024. doi:10.3899/jrheum.2023-0716

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