Sicherheit und Wirksamkeit von Telitacicept bei Patienten mit refraktärem systemischem Lupus erythematosus und Therapieversagen von Belimumab

Author:

Fan Qiuyu,Yang Huiqin,Liu Ya

Abstract

Abstract Objective This study aimed to determine the effect and safety of telitacicept, an antagonist of BLyS/APRIL-mediated B cell activation, in patients with systemic lupus erythematosus (SLE) who failed treatment with belimumab and in whom telitacicept was administered combined with conventional therapy. A review of published reports on telitacicept for SLE was also performed. Methods A retrospective review was performed of the records of patients seen in the Department of Rheumatology at the Wuhan Hospital of Chinese and Western Medicine, Wuhan, China, with refractory SLE who had failed treatment with belimumab. The terms “systemic lupus erythematosus” and “telitacicept” were used to identify patients reported in the English medical literature. Results Identified were 14 refractory SLE patients, 3 males (21%) and 11 females (79%). The median age was 32.9 years. The median disease duration was 8.9 years. Patients in this cohort received telitacicept for an average of 34.1 weeks (17–62 weeks) and the total SLE responder index 4 (SRI-4) response rate was 78.9% (n = 11). The mean SLE Disease Activity Index (SLEDAI) score declined from 8.6 at baseline (95% confidence interval [CI] 7.87–9.28) to 4.29 at the endpoint (95% CI 3.4–5.16). All cases (100%) had hypocomplementemia at baseline, and 7 cases (50%) reported normal C3 and C4 levels at the follow-up endpoint. At the observation endpoint, the 24‑h urinary protein value of the 13 cases with proteinuria (baseline 24‑h urinary protein > 0.5 g/d) displayed a reduction, and 3 values turned negative. Although some patients had low serum total immunoglobulin (Ig) levels, subnormal IgG levels, and absolute counts of peripheral blood lymphocytes after treatment, no serious infection was reported. One case was refractory lupus hepatitis confirmed by liver pathology, and upon change to change to telitacicept treatment, liver function returned to normal. Conclusion This is the first case series in SLE patients who accepted telitacicept treatment after failed treatment with belimumab. Our case series and review of the literature show that telitacicept combined with the original standard treatment may significantly improve disease activity while reducing prednisone use. No major safety issues were seen in this group of patients. Telitacicept may be a promising drug for the treatment of refractory lupus hepatitis.

Publisher

Springer Science and Business Media LLC

Subject

Rheumatology

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