Methods for characterizing
disease activity in a
systemic lupus erythematosus (SLE) patient. Methods include obtaining a blood, serum,
plasma, or
urine sample from the patient; assessing the sample for expression of a biomarker selected from the group consisting of IFN-α, IL-10, BLyS, IL-7, IFN-γ, TRAIL, IL-15, IP-10 / CXCL10, and IL-4; assessing the sample for expression of an
inflammatory mediator selected from the group consisting of TNFRII, Resistin, and
Osteopontin (OPN); assessing the sample for an SLE-associated
autoantibody specificity biomarker selected from the group consisting of dsDNA,
chromatin, RiboP, Ro / SSA, La / SSB, Sm, SmRNP, and RNP; and calculating a Lupus
Disease Activity (Immune) Index (LDAII / L-DAI)
score. The LDAII / L-DAI
score may distinguish between active and low lupus
disease activity. Methods of treatment are also provided including administering a treatment prior to reaching
clinical disease classification after determining that the patient has the prognosis for transitioning to classified SLE.