An intravenous biological therapy used to treat paroxysmal nocturnal hemoglobinuria and atypical hemolytic uremic syndrome.
EPYSQLI is a complement inhibitor indicated for: the treatment of patients with paroxysmal nocturnal hemoglobinuria (PNH) to reduce hemolysis. ( 1.1 ) the treatment of patients with atypical hemolytic uremic syndrome (aHUS) to inhibit complement-mediated thrombotic microangiopathy. ( 1.2 ) Limitation of Use EPYSQLI is not indicated for the treatment of patients with Shiga toxin E. coli related hemolytic uremic syndrome (STEC-HUS). the treatment of generalized myasthenia gravis (gMG) in adult patients who are anti-acetylcholine receptor (AchR) antibody positive. ( 1.3 ) 1.1 Paroxysmal Nocturnal Hemoglobinuria (PNH) EPYSQLI is indicated for the treatment of patients with paroxysmal nocturnal hemoglobinuria (PNH) to reduce hemolysis. 1.2 Atypical Hemolytic Uremic Syndrome (aHUS) EPYSQLI is indicated for the treatment of patients with atypical hemolytic uremic syndrome (aHUS) to inhibit com…
12.1 Mechanism of Action Eculizumab-aagh, the active ingredient in EPYSQLI, is a monoclonal antibody that specifically binds to the complement protein C5 with high affinity, thereby inhibiting its cleavage to C5a and C5b and preventing the generation of the terminal complement complex C5b-9. Eculizumab products inhibit terminal complement-mediated intravascular hemolysis in PNH patients and complement-mediated thrombotic microangiopathy (TMA) in patients with aHUS. The precise mechanism by which eculizumab exerts its therapeutic effect in gMG patients is unknown, but is presumed to involve reduction of terminal complement complex C5b-9 deposition at the neuromuscular junction.
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