Lupus & antiphospholipid syndrome

Single-centre comparison of non-familial, familial and monogenic lupus

Rheumatology (Oxford)Published Retrospective case-control study

Authors' conclusion

Overall, clinical phenotype is a poor indicator of familial or monogenic lupus.

Study context

Population
Patients with systemic lupus erythematosus (SLE) in a population with high rates of consanguinity24 multiplex families
Participants
62 vs 95
Comparison
Familial lupus vs non-familial lupus; monogenic vs other familial lupus
  • Familialn = 62
  • Non-familialn = 95reference
Outcome
Clinical and laboratory phenotype, familial vs non-familial
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

Odds ratio

0.91

P = 1.61 × 10-5

age at presentation 18 y vs 26 y

Odds ratio

2.7

P = 0.013

synovitis

Odds ratio

0.25

P = 1.9 × 10-3

high level of dsDNA antibodies

Observational data: associations, not effects.

Further findings

OutcomeORP value
Monogenic vs other familial lupusMonogenic vs Other familial · age at presentation 6 y vs 19 y0.82P = 2.13 × 10-3
Monogenic vs other familial lupusMonogenic vs Other familial · non-biased male-to-female ratioP = 0.077
Monogenic vs other familial lupusMonogenic vs Other familial · expansion of exhausted CD4+ T cells (CD4+CD45RA+PD-1+)P = 1.7 × 10-4

Exome sequencing diagnostic rate (subset of familial cases)

Diagnostic rate
36%

Original publication

Single-centre comparison of non-familial, familial and monogenic lupus. Rheumatology (Oxford). Published 4 June 2025. doi:10.1093/rheumatology/keaf304

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