Rheumatoid arthritis

Remission definitions guiding immunosuppressive therapy in rheumatoid arthritis: which is best fitted for the purpose?

RMD OpenPublished Individual patient data meta-analysis of randomised controlled trials

Authors' conclusion

3VBoolean definition provided the most accurate prediction of GRO and GFO, avoiding the risk of overtreatment in a substantial proportion of patients without increment in radiographic damage progression, supporting the proposal that 3VBoolean remission is preferable to guide immunosuppressive treatment.

Study context

Population
Patients with RA in randomised controlled trials (RCTs)
Participants
4,423 patients8 RCTs
Comparison
Six remission definitions (Boolean, Simplified Disease Activity Index (SDAI), Clinical Disease Activity Index (CDAI), Updated-Boolean, Boolean-PhGA, 3VBoolean) as predictors of good radiographic and functional outcome
Outcome
Prediction of GRO (radiographic score worsening ≤0.5 units) and GFO (∆HAQ-DI≤0.0 units) during the second year by remission at 6 and/or 12 months
Follow-up
Second year

Pooled result

As reported in the abstract

Predictive accuracy for GRO

Further pooled results

OutcomeValues
Proportion of GFO correctly predicted · second year3VBoolean 50.3% · Boolean 43.8%
Remission achieved (all patients)Boolean 24% · SDAI 27% · CDAI 28% · Updated-Boolean 32% · Boolean-PhGA 33% · 3VBoolean 43%
  • Proportion of good functional outcome (GFO) correctly predicted: highest for 3VBoolean, lowest for Boolean

Proportion of GFO correctly predicted · second year

RR of GFO ranged from 1.16 (Boolean) to 1.05 (3VBoolean)

Original publication

Remission definitions guiding immunosuppressive therapy in rheumatoid arthritis: which is best fitted for the purpose? RMD Open. Published 4 March 2024. doi:10.1136/rmdopen-2023-003972

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