Frexalimab (SAR441344) as a potential multiautoimmune disorder tackling mAB targeting the CD40-CD40L pathway undergoing clinical trials: a review

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Abstract
Autoimmune disorders exhibit intricate pathology. Their mechanisms are complex, which attenuates the need for novel therapeutic interventions. Frexalimab, a potent monoclonal antibody targeting the dysregulated CD40-CD40L pathway, stands out as a formidable weapon against the assault of inflammation and tissue devastation. Diverse electronic databases were searched using relevant keywords to extract data on the role of Frexalimab in combating various autoimmune diseases. This review highlights Frexalimab’s efficacy in improving various disability indicators of relapsing multiple sclerosis (RMS), alleviating fatigue in primary Sjögren’s syndrome (PSJS), and improving glycemic control in diabetic patients. Across multiple trials, its favorable safety profile has proven its superiority over first-generation drugs in minimizing side effects. Indeed, Frexalimab has become a harbinger of hope in the fight against autoimmune diseases and has pioneered a unique and unchallenging way for tackling complex autoimmune diseases in the clinical realm, however, further large-scale trials are needed to establish its therapeutic benefits across different autoimmune conditions.

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