Spondyloarthritis & psoriatic arthritis

Second and third TNF inhibitors in European patients with axial spondyloarthritis: effectiveness and impact of the reason for switching

Rheumatology (Oxford)Published Prospective cohort study

Authors' conclusion

A similar proportion of axSpA patients remained on a second and third TNFi after one year, but with low remission rates for the third TNFi. Remission rates on the second TNFi (but not the third) were higher if the withdrawal reason from the preceding TNFi was AE vs LOE.

Study context

Population
Patients with axial spondyloarthritis (axSpA) in routine care, 12 European registriesTumor necrosis factor inhibitors (TNFi)-series
Participants
8,254 vs 2,939
Exposure
Second vs third TNFi series; withdrawal from preceding TNFi due to adverse events (AE) vs lack of efficacy (LOE)
  • Second TNFin = 8,254
  • Third TNFin = 2,939
Outcome
12-month drug retention and 6-month remission (ASDAS-ID)
Methodological detailspooled data from 12 European registries, routine care
  • Pooled data from 12 European registries
  • Routine care

Main finding

As reported in the abstract

12-month drug retention · 12 months

Observational data: associations, not effects.

Further findings

6-month ASDAS-ID rate

OutcomeP value
12-month drug retention on second TNFi, primary (LOE <26 weeks) vs secondary (LOE ≥26 weeks) non-respondersP < 0.001
6-month ASDAS-ID on second TNFi by withdrawal reason · 6 monthsAE vs LOEP < 0.001
6-month ASDAS-ID on third TNFi by withdrawal reason · 6 monthsAE vs LOEP = 0.20
  • 12-month drug retention on second TNFi, primary (LOE <26 weeks) vs secondary (LOE ≥26 weeks) non-responders: Primary non-responders 58%
  • 12-month drug retention on second TNFi, primary (LOE <26 weeks) vs secondary (LOE ≥26 weeks) non-responders: Secondary non-responders 71%
  • 6-month ASDAS-ID on second TNFi by withdrawal reason: AE 27%
  • 6-month ASDAS-ID on second TNFi by withdrawal reason: LOE 17%
  • 6-month ASDAS-ID on third TNFi by withdrawal reason: AE 19%
  • 6-month ASDAS-ID on third TNFi by withdrawal reason: LOE 13%

12-month drug retention by withdrawal reason (AE vs LOE)

Second TNFi: AE 68% vs LOE 67%, similar
Third TNFi: AE and LOE both 68%

Original publication

Second and third TNF inhibitors in European patients with axial spondyloarthritis: effectiveness and impact of the reason for switching. Rheumatology (Oxford). Published 20 September 2023. doi:10.1093/rheumatology/kead494

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

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.