All participants may continue to receive stable background standard of care therapy for LN and systemic lupus erythematosus (SLE) as permitted by the protocol (for example, mycophenolate mofetil [MMF], azathioprine, antimalarials, glucocorticoids, cyclosporin, voclosporin, tacrolimus, angiotensin converting enzyme [ACE] inhibitors, angiotensin receptor blockers [ARBs]).
The main purpose of this study is to determine the safety and tolerability of repeat doses of ANX009 in participants with lupus nephritis (LN).