Reata Pharmaceuticals’ Friedreich’s Ataxia Drug Approved
FDA has approved a Reata Pharmaceuticals NDA for Skyclarys (omaveloxolone) as the first treatment for Friedreich’s ataxia, a rare degenerative disease that damages the nervous system. The disease, which is characterized by impaired coordination and walking, causes progressive damage to the spinal cord, peripheral nerves, and the brain, resulting in uncoordinated muscle movement, changes in speech and swallowing, and a shortened lifespan, according to an FDA release. It typically develops in children and teenagers and worsens over time.
The approval was based on data from a 48-week randomized, placebo-controlled, and double-blind study. “The primary objective was to evaluate the change in the modified Friedreich’s Ataxia Rating Scale (mFARS) score compared to placebo at week 48,” the agency says. “The mFARS is a clinical assessment that measures disease progression, namely swallowing and speech (bulbar), upper limb coordination, lower limb coordination, and upright stability. Individuals receiving Skyclarys performed better on the mFARS than people receiving placebo. In a post hoc analysis, individuals who continued treatment with Skyclarys in an open-label extension for up to three years performed better on the mFARS compared to a matched set of untreated patients from a natural history study.”
FDA says Skyclarys’ most common side effects were increases in alanine transaminase and aspartate aminotransferase, which can be signs of liver damage. Headache, nausea, abdominal pain, fatigue, diarrhea and musculoskeletal pain were also common in the study.