Leflunomide versus azathioprine in lupus nephritis? Study of 215 bx proven LN given either LEF or AZA - Renal flares were equal (15.7% v 17.8%), as was time to flare (16 mo vs AZA 14 mo); 24-hr proteinuria, creatinine, C3 and C4 improved similarly. https://t.co/fbzhuFT3lh