IV Cyclophosphamide Protocols for Systemic Lupus Erythematosus

Disease Complication

Regimen[a]

Lupus nephritis[b]

Induction therapy for lupus nephritis: 500 mg on weeks 0, 2, 4, 6, 8, and 10[c]

Organ- or life-threatening disease

0.75 to 1 g/m2 BSA/month for 6 months[d,e]

Mesna is given in a dose equal to cyclophosphamide. Mesna binds acrolein, which is a metabolite of cyclophosphamide that irritates the bladder.

[c] Euro-Lupus regimen.

[d] Cyclophosphamide should not be used after this period.

[e] National Institutes of Health regimen.

BSA = body surface area.

Adapted from Fanouriakis A, Kostopoulou M, Alunno A, et al: 2019 update of the EULAR recommendations for the management of systemic lupus erythematosus. Ann Rheum Dis 78(6):736–745, 2019. doi: 10.1136/annrheumdis-2019-215089