Lupus & antiphospholipid syndrome

Belimumab as a possible treatment for SLE-associated pulmonary arterial hypertension: the experience from a single centre

Lupus Sci MedPublished Ambispective cohort study

Authors' conclusion

Belimumab combined with standard PAH-targeted therapy was associated with improvements in right ventricular structure and function in patients with SLE-PAH compared with conventional immunosuppression.

Study context

Population
Patients with SLE-associated PAH, all on dual or triple combination PAH-targeted therapy, January 2022 to January 2025matched on age, sex, WHO functional class (WHO-FC), PAH and SLE therapy
Participants
10 vs 30
Exposure
IV belimumab (10 mg/kg) vs conventional immunosuppression without biologics, with PAH-targeted therapy
  • Belimumabn = 10
  • Matched controlsn = 30reference
Outcome
RV structure and function (TAPSE/PASP, RVDd)
Follow-up
12 months
Methodological detailsmatched controls, single-centre, Followed for 12 months by the same medical team
  • Matched controls
  • Single-centre
  • Followed for 12 months by the same medical team

Main finding

As reported in the abstract

12 months
  • Greater improvement in TAPSE/PASP and RVDd with belimumab vs matched controls, statistically significant differences between groups
  • Matched cohort

Observational data: associations, not effects.

Further findings

Within-group changes with belimumab

Rapid and sustained improvements in NT-proBNP, WHO-FC, 6-minute walking distance, sST2, TAPSE/PASP and RVDd

PAH risk category · 12 months

Matched controls: intermediate-low risk
1
Matched controls: intermediate-high risk
4
Belimumab: all patients low risk

Original publication

Belimumab as a possible treatment for SLE-associated pulmonary arterial hypertension: the experience from a single centre. Lupus Sci Med. Published 18 June 2026. doi:10.1136/lupus-2026-001960

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

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