Pediatric rheumatology

Belimumab use in paediatric-onset systemic lupus erythematosus: a status report in France from a retrospective multicentre descriptive study

Rheumatology (Oxford)Published Retrospective multicentre descriptive study

Authors' conclusion

This retrospective, multicentre study found that belimumab, primarily administered intravenously, was effective for articular involvement and had a corticosteroid-sparing effect in jSLE, with a favourable safety profile. Its efficacy was limited for cutaneous, renal and haematological manifestations.

Study context

Population
Patients with juvenile-onset SLE (2019 EULAR/ACR criteria) starting belimumab before age 18, France
Participants
21 patients
Exposure
Belimumab at 6 months vs baseline
Outcome
Real-world use, efficacy and safety of belimumab
Follow-up
6 months

Main finding

As reported in the abstract

Efficacy at 6 months

Corticosteroid use, baseline vs 6 months (trend towards lower)

0.53 vs 0.15 mg/kg/day

Proportion achieving low disease activity status, baseline vs 6 months

6.3% vs 37.5%

Complete resolution of articular manifestations

77.8%

Observational data: associations, not effects.

Further findings

Use of belimumab

Intravenous belimumab
90.5%
Indication: articular manifestations
66.7%
Indication: cutaneous manifestations
23.8%

Safety

Tolerability

Discontinuation due to psychiatric symptoms
1
Overall well tolerated

Original publication

Belimumab use in paediatric-onset systemic lupus erythematosus: a status report in France from a retrospective multicentre descriptive study. Rheumatology (Oxford). Published 26 April 2026. doi:10.1093/rheumatology/keag229

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