Lupus & antiphospholipid syndrome

Evaluating the concordance between BICLA and SRI4 in patients with systemic lupus erythematosus from the placebo arms of the EXPLORER and ATHOS trials

Lupus Sci MedPublished Post-hoc analysis of the placebo arms of the EXPLORER and ATHOS randomised controlled trials

Authors' conclusion

BICLA and SRI4 may be discordant in SLE trials. Arthritis and rash were the primary drivers of the discordance, and serology influenced BICLA and SRI4 response

Study context

Population
Participants with SLE receiving placebo and standard of care (SOC) in two RCTs
Participants
87 vs 80
Comparison
BICLA vs SRI4 response in placebo participants
  • EXPLORERn = 87
  • ATHOSn = 80

Primary result

As reported in the abstract

week 52 (EXPLORER), week 48 (ATHOS)

Values · week 52 (EXPLORER), week 48 (ATHOS) EXPLORER Cohen's κ 0.46 · ATHOS Cohen's κ 0.54

BICLA response rate

SRI4 response rate

BICLA+/SRI4- discordance

BICLA-/SRI4+ discordance

Further findings

BICLA response by baseline manifestation (ATHOS subgroups) · week 48

Discordance by baseline complement

BICLA-/SRI4+ and BICLA+/SRI4- discordance lower with low vs normal complement at baseline

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Evaluating the concordance between BICLA and SRI4 in patients with systemic lupus erythematosus from the placebo arms of the EXPLORER and ATHOS trials. Lupus Sci Med. Published 19 May 2025. doi:10.1136/lupus-2024-001483

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

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