A 15-year-old adolescent with newly diagnosed nephrotic syndrome undergoes a renal biopsy. The pathology report describes focal and segmental scarring in some glomeruli with IgM and C3 staining in the sclerotic areas on immunofluorescence. Electron microscopy confirms segmental scarring of the glomerular tuft. What is the likelihood that this patient will achieve remission with an 8-week course of oral corticosteroids?