Italfarmaco Wins Approval for Duchenne Drug
FDA has approved Italfarmaco’s Duvyzat (givinostat), an oral drug for treating Duchenne Muscular Dystrophy (DMD) in patients six years of age and older. “Duvyzat is the first nonsteroidal drug approved to treat patients with all genetic variants of DMD,” an FDA release says. “It is a histone deacetylase (HDAC) inhibitor that works by targeting pathogenic processes to reduce inflammation and loss of muscle.”
Approval was based on data from a randomized, double-blind, placebo-controlled 18-month Phase 3 study with a primary endpoint of change from baseline to Month 18 using a four stair climb to measure muscle function, the agency says. Patients treated with Duvyzat showed “statistically significant less decline in the time it took to climb four stairs compared to placebo,” it says, adding that mean change from baseline to Month 18 was 1.25 seconds for patients receiving Duvyzat compared to 3.03 seconds for those on placebo.
Regarding safety, the most common side effects in those taking Duvyzat are diarrhea, abdominal pain, a decrease in platelets (increased bleeding potential), nausea/vomiting, an increase in triglycerides, and fever, FDA says. Additionally, Duvyzat’s label includes warnings for health care providers to evaluate patients’ platelet counts and triglycerides before prescribing. “Duvyzat may also cause QTc prolongation, which can increase the risk for irregular heartbeats,” it adds.