The invention relates to methods, compositions, and kits for the treatment of proteinuria and/or hypertension (e.g., proteinuria and/or hypertension arising from primary renal disease (e.g., focal segmental glomerulosclerosis, glomerular disease) or secondary to other conditions (e.g., diabetes, diabetic nephropathy, liver disease). Specifically, the invention relates to methods involving combination therapy wherein an indoline (e.g., indapamide) is administered in combination with an anti-aldosterone agent (e.g., spironolactone and/or epleronone).