Treatment of Idiopathic or primary FSGS is very difficult. Treatment should be tailored towards relieving symptoms and preventing disease progression. The use of loop diuretics to manage the edema and corticosteroids to suppress immune function has been successful in some.
However, secondary causes of FSGS are treated by treating the underlying causes. Highly Active Anti-Retroviral Therapy can be used in HIV patients with FSGS. Immunosuppressant like prednisone can be used in immune mediated FSGS. Loop diuretics like furosemide can be used to control the edema and proteinuria.
FSGS patients who progress to End Stage Kidney disease would need lifelong dialysis.
Randomized clinical trials have only addressed patients with primary FSGS and have nephrotic-range proteinuria. For those patients, the use of corticosteroids and immunosuppressive therapy followed by conservative therapy with ACE-I or ARBs is recommended, according to the 2012 KDIGO guidelines. For patients with relapse, guidelines for relapsing minimal change disease are recommended for patients with FSGS. Finally, patients with resistance to steroids are recommended to use cyclosporine, or a combination of mycophenolate mofetil and high dose dexamethasone for patients who cannot tolerate cyclosporine.
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