Spondyloarthritis & psoriatic arthritis

Factors associated with discontinuation of biologics in patients with inflammatory arthritis in remission: data from the BIOBADASER registry

Arthritis Res TherPublished Retrospective cohort study

An erratum to this article was published (Arthritis Res Ther, 25 Oct 2023 ↗)

Authors' conclusion

Discontinuation of bDMARDs in patients who achieve remission is uncommon in routine clinical care. Smoking and positive ACPA in RA patients were associated with a lower probability of treatment discontinuation because of clinical remission.

Study context

Population
Adults with rheumatoid arthritis (RA), ankylosing spondylitis (AS) or psoriatic arthritis (PsA) receiving 1 or 2 bDMARDs, BIOBADASER registry, October 1999–April 2021
Participants
3,366 adults
Exposure
RA vs AS vs PsA
Outcome
Discontinuation of bDMARDs because of remission (as defined by the attending clinician) and its predictors
Methodological detailsregistry-based (BIOBADASER), multivariable regression
  • Registry-based (BIOBADASER)
  • Multivariable regression

Main finding

As reported in the abstract

bDMARD discontinuation owing to remission
Overall discontinuation owing to remission, 80 patients
2.4%

Observational data: associations, not effects.

Further findings

Predictors of bDMARD discontinuation owing to remission (multivariable regression)

OR for discontinuation owing to remission (95% CI)
Disease duration0.95 (0.91–0.99)
Concomitant classic DMARDs0.56 (0.34–0.92)
Usage of previous bDMARD1.01 (1.01–1.02)
Smoking statusAssociated with lower probability of discontinuation2.48 (1.21–5.08)

Predictor of bDMARD discontinuation owing to remission in RA (subgroup)

OR for discontinuation owing to remission (95% CI)
Positive ACPAAssociated with lower probability of discontinuation0.11 (0.02–0.53)
  • Predictors of bDMARD discontinuation owing to remission (multivariable regression): shorter disease duration associated with higher probability of discontinuation
  • Predictors of bDMARD discontinuation owing to remission (multivariable regression): no concomitant use associated with higher probability of discontinuation
  • Predictors of bDMARD discontinuation owing to remission (multivariable regression): shorter usage associated with higher probability of discontinuation

Original publication

Factors associated with discontinuation of biologics in patients with inflammatory arthritis in remission: data from the BIOBADASER registry. Arthritis Res Ther. Published 22 May 2023. doi:10.1186/s13075-023-03045-3

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