No Complete Remission Within 4 Weeks of Daily Glucocorticoid Therapy
Nephrotic syndrome that does not resolve completely within the first 4 weeks of standard-dose daily prednisone or prednisolone is classified as steroid-resistant nephrotic syndrome (SRNS). This absence of response to initial glucocorticoid therapy signals the need for a distinct, structured management pathway.
Clinical Scenario
SRNS is defined by the lack of complete remission within 4 weeks of therapy with daily prednisone or prednisolone at standard dose. In a child who does not achieve a complete response to glucocorticoids at 4 weeks, SRNS is diagnosed and a revised treatment approach is indicated.
Treatment Approach
Management of SRNS includes initiation of a renin-angiotensin system inhibitor (RASi). A confirmation period from 4 to 6 weeks may also involve continuation of glucocorticoid therapy in a specific combination regimen — the full details of this regimen are in the complete protocol.
Treatment Goal
The target is complete remission by 6 weeks from the start of therapy. A proportion of patients who achieve only partial remission at 4 weeks may still reach complete remission by 6 weeks; these are defined as late responders.
References
- SRNS: Lack of complete remission within 4 weeks of therapy with daily prednisone or prednisolone at standard dose
- In a child who does not achieve a complete response to glucocorticoids at 4 weeks, SRNS is diagnosed.
- Therapy with a renin-angiotensin system inhibitor should be started and, where available, genetic testing for known podocyte mutations and/or kidney biopsy should be pursued.
- Between 4 and 6 weeks from the start of glucocorticoid therapy, a confirmation period that includes treatment with a renin-angiotensin system inhibitor along with continuation of glucocorticoid treatment either as daily or alternate-day oral prednisolone in combination with 3 daily i.v. methylprednisolone pulses can be considered.
- If partial remission is achieved, SRNS can be strongly suspected, but a small percentage of children will achieve a complete response at 6 weeks (defined as late responders).