Despite a phase IIa failure in 2018 for lupus, Biogen Inc. and UCB Inc. maintained their collaboration and now have new positive data for their anti-CD40L candidate. Top-line phase III data show dapirolizumab pegol, along with the standard of care (SOC), met the primary endpoint in demonstrating an improvement in moderate to severe systemic lupus erythematosus compared to placebo and SOC at 48 weeks.