Novartis on Wednesday announced that the U.S. Food and Drug Administration (FDA) approved Fabhalta (iptacopan) as the first oral monotherapy for the treatment of adults with paroxysmal nocturnal hemoglobinuria (PNH).
According to a company’s press statement, Fabhalta is a Factor B inhibitor that acts proximally in the alternative complement pathway of the immune system, providing comprehensive control of red blood cell (RBC) destruction within and outside the blood vessels (intra- and extravascular hemolysis [IVH and EVH]).
“An efficacious oral treatment with a demonstrated safety profile could be practice-changing for physicians and help relieve burdens experienced by people with PNH,” said Vinod Pullarkat, MD, MRCP, Clinical Professor, Department of Hematology and Hematopoietic Cell Transplantation, City of Hope. “In clinical studies, iptacopan was superior to anti-C5s in hemoglobin improvement in the absence of RBC transfusion and transfusion avoidance rate, and also effective in complement inhibitor-naïve individuals, by providing clinically meaningful hemoglobin-level increases without the need for blood transfusions.”
Fabhalta may cause serious infections caused by encapsulated bacteria and is available only through a Risk Evaluation and Mitigation Strategy (REMS) that requires vaccinations for encapsulated bacteria, the company said in a statement.
People with PNH have an acquired mutation making red blood cells susceptible to premature destruction by the complement system. PNH is characterized by hemolysis, bone marrow failure, and thrombosis in varying combinations and levels of severity. Existing C5 inhibitor treatments, administered as infusions, may leave PNH symptoms uncontrolled.
Up to 88 percent of patients on anti-C5 treatment may have persistent anemia with over one-third of those patients requiring blood transfusions at least once per year.
“The U.S. approval of Fabhalta is an extraordinary moment for people living with PNH, their loved ones and the healthcare providers who care for them,” said Victor Bultó, President US, Novartis. “This new, effective oral medicine may mean that patients can reset their expectations of living with PNH, a chronic and life-altering blood disease. As Novartis continues to focus on conditions with unmet patient need, we are exploring the potential of Fabhalta in other complement-mediated diseases – with an ultimate goal to drive meaningful change for patients.”
Discovered and developed by Novartis, Fabhalta is expected to be available in the United States in December. Additional regulatory filings and reviews for Fabhalta in PNH are currently underway around the world, it added.
