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Belimumab Superior to Placebo in Systemic Lupus Erythematosus Treatment: Study

Researchers have found in a recent meta-analysis that belimumab is more effective than placebo in treating systemic lupus erythematosus (SLE), based on BICLA criteria. This finding reinforces belimumab's clinical utility and may help guide future treatment strategies.
A study was done to determine belimumab efficacy assessed using the British Isles Lupus Assessment Group (BILAG)-based Combined Lupus Assessment (BICLA) in patients with systemic lupus erythematosus (SLE) from phase III belimumab randomised controlled trials (RCTs). A post hoc analysis was carried out on five RCTs in active adult SLE: four with intravenous (BLISS-52, BLISS-76, BLISS-NEA, EMBRACE) and one with subcutaneous belimumab (BLISS-SC).
The 52-week landmark assessments were analysed across trials. Treatment response was defined according to BICLA criteria (BILAG improvement; no worsening of disease activity based on BILAG and Systemic Lupus Erythematosus Disease Activity Index-2K; no deterioration in Physician’s Global Assessment ≥0.3 (scale: 0–3); no treatment failure). Results: A total of 3086 patients received belimumab (n=1869) or placebo (n=1217). BICLA response frequencies at week 52 were greater with belimumab vs placebo in BLISS-52 (OR (95% CI): 1.49 (1.05–2.12); p=0.024), BLISS-NEA (1.62 (1.12–2.33); p=0.010) and BLISS-SC (1.89 (1.39–2.57); p<0.001).
A highly significant difference was observed in the pooled population (1.47 (1.25–1.72); p<0.001; adjusted for trial variance). Belimumab yielded greater BICLA response frequencies than placebo irrespective of baseline glucocorticoid dose (>7.5 or ≤7.5 mg/day of a prednisone equivalent), in patients with baseline SLEDAI-2K≥10 and in patients with positive anti-double-stranded (ds)DNA and/or low C3/C4 levels at baseline. Belimumab combined with anti-malarials yielded greater frequency of BICLA response attainment. In this analysis of five RCTs evaluating belimumab in SLE, belimumab conferred superiority over placebo to yield BICLA response in the overall study population and in subgroups of patients with high global or serological activity at baseline. The benefit of belimumab was more prominent when combined with anti-malarials.
Reference:
Parodis I, Lindblom J, Palazzo L, Cetrez N, Oon S, Ala H, van Vollenhoven RF, Morand E, Levitsky A, Nikpour M. Outcomes of patients with systemic lupus erythematosus treated with belimumab: a post hoc efficacy analysis of five phase III clinical trials by British Isles Lupus Assessment Group-based Combined Lupus Assessment criteria. RMD Open. 2025 Apr 23;11(2):e005444. doi: 10.1136/rmdopen-2025-005444. PMID: 40274305; PMCID: PMC12020763.
Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751