BEL114333, a Continuation Study of BEL113750 in Subjects With Systemic Lupus Erythematosus (SLE) in Northeast Asia, and in Japan Subjects Completing the Open-label Extension of HGS1006-C1115

This study provides subjects who complete the BEL113750 study and subjects who complete the open-label extension of HGS1006-C1115 (referred to as C1115) Study in Japan the option of continuing treatment with belimumab (10 mg/kg intravenously every 4 weeks) for those randomized to belimumab, or the option to begin treatment with belimumab for those randomized to placebo, as an add-on to their standard of care SLE therapy.