Alnylam Gains Expanded Label for Oxlumo
FDA has approved an Alnylam Pharmaceuticals supplemental NDA to expand the label for Oxlumo (lumasiran), an RNAi therapeutic indicated for treating primary hyperoxaluria Type 1 (PH1) to lower urinary oxalate (UOx) and plasma oxalate (POx) levels in pediatric and adult patients. The drug was originally approved 11/2020 for treating PH1 to lower UOx levels. PH1 is an ultra-rare genetic disease characterized by oxalate overproduction in the liver, which can lead to calcium oxalate crystals in the kidneys and urinary tract, according to the company.
Approval was based on positive efficacy and safety data from the ILLUMINATE-C Phase 3 study of Oxlumo in patients with severe renal impairment. It showed that the drug reduced pox, which is “directly related to the pathophysiology of oxalosis and results in systemic deposition of oxalate in extra-renal tissues, potentially leading to bone fractures, cardiomyopathy, impaired erythropoiesis, vision loss, skin ulcers and other serious manifestations,” Alnylam says.