A Phase 4, Multicenter, Prospective, Open-Label Study Describing the Efficacy and Safety of Belimumab Administered Subcutaneously in Adult Participants With Early Systemic Lupus Erythematosus

What this Trial Is About

Researchers are evaluating the short-term and long-term effects and safety of belimumab in adults with early systemic lupus erythematosus SLE who have positive autoantibodies and ongoing disease activity despite stable first-line treatment. This is a prospective, open-label, single-arm Phase 4 clinical study sponsored by GlaxoSmithKline. The study focuses on adults diagnosed within two years with active SLE, aiming to better understand how belimumab works in this group. Participants will receive belimumab GSK1550188 administered subcutaneously throughout the study. The treatment and observation period lasts for three years, with key evaluations at one year and longer-term follow-ups up to three years. There is no placebo or comparison group, as all participants receive the study drug. During the study, participants will have regular visits to assess disease activity, including the Lupus Low Disease Activity State LLDAS at week 52 and other measures such as the SLE Responder Index 4 SRI4, flare frequency, and improvements in skin symptoms. Researchers will monitor safety by tracking adverse events and serious adverse events. Blood tests, questionnaires, and physical assessments will be done to evaluate fatigue, damage, and disease remission. Participants will be followed for up to 156 weeks to assess long-term outcomes and safety.

A Study Describing the Efficacy and Safety of Belimumab Administered in Adult Participants With Early Systemic Lupus Erythematosus (SLE)