Biotechnology French pharma major Sanofi has presented new data at the 2023 Consortium of Multiple Sclerosis Centers (CMSC) annual meeting, demonstrating that frexalimab, the firm’s novel second-generation investigational anti-CD40L antibody, with a unique mechanism of action, significantly reduced disease activity in a Phase II trial of patients with relapsing multiple sclerosis (RMS). 31 May 2023