REduced-dose Steroid PrOtocol for Childhood Nephrotic SyndromE (RESPONSE)

This study will compare two steroid dosing protocols for the treatment of childhood nephrotic syndrome relapses. The medications used for both intervention and control arms are oral prednisone 5mg tablets (DIN: 00312770) for children able to swallow or use crushed tablets, or oral prednisolone sodium phosphate 5mg base/5mL liquid (DIN: 02245532). Participants hospitalized after study enrollment will be permitted to switch to intravenous methylprednisolone sodium succinate (DIN: 02367955) at the same dose without being considered to have violated their treatment assignment.