Evaluating the Safety and Effectiveness of Dapirolizumab Pegol Added to Standard Treatment in Adults With Moderate to Severe Systemic Lupus Erythematosus

What this Trial Is About

Researchers are evaluating dapirolizumab pegol DZP as an add-on treatment to standard care medications for people with moderate to severe active systemic lupus erythematosus SLE. This Phase 3, multicenter, randomized, double-blind, placebo-controlled study aims to assess whether DZP can achieve meaningful long-term improvement in disease activity compared to placebo. Participants must have been diagnosed with SLE at least 24 weeks prior and meet specific disease activity and serological criteria. Participants will be randomly assigned to receive either dapirolizumab pegol or placebo throughout the treatment period. Both groups will continue their stable standard of care medications, which may include antimalarials, glucocorticoids, andor immunosuppressants. The study is designed with a parallel group structure and masking to ensure unbiased assessment of efficacy and safety over a treatment period extending up to 48 weeks. During the study, participants will be monitored regularly to assess disease activity using tools such as the British Isles Lupus Assessment Group Disease Activity Index 2004 BILAG 2004 and Systemic Lupus Erythematosus Disease Activity Index 2000 SLEDAI-2K. Researchers will track responses at Week 48 and evaluate additional outcomes like flare prevention, fatigue levels, glucocorticoid dose reduction, and safety events. Follow-up will continue up to Week 54 to monitor adverse events, ensuring comprehensive evaluation of participant health and treatment effects.

A Study to Evaluate the Efficacy and Safety of Dapirolizumab Pegol in Study Participants With Moderately to Severely Active Systemic Lupus Erythematosus