التهاب الكلية الذئابي بعد فشل العلاج الخطي الأول في التهاب الكبيبات سريع التقدم

References

DOI: 10.1016/j.ard.2025.09.007

This recommendation refers to the specific subset of patients who present with rapidly progressive glomerulonephritis, ie, a rapid decline in kidney function accompanied by histologic evidence of extensive crescent formation (typically affecting >50% of the glomeruli).

For patients with persistently active or relapsing disease, switching among different immunosuppressive and/or biologic drugs and referral to experts is recommended.

Any of the alternative regimens outlined in recommendation #4 can be tried.

In cases of monotherapy with MPAA or CYC used as initial therapy, combination therapy should now be strongly considered.

Treatment should aim for optimisation (preservation or improvement) of kidney function within 3 months, accompanied by a reduction in proteinuria of at least 25% by 3 months, 50% by 6 months, and a UPCR target <700 mg/g by 12 months, and as low as possible afterwards.

Together with proteinuria, stabilisation (if not improvement) of GFR to ≥80% of baseline value is desirable within the first 3 months to ensure that the patient is not deteriorating and in need of reevaluation of the treatment regimen.

Complete renal response should be defined as UPCR <500 mg/g at any time point.

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