The frataxin gene mutation that causes FA results in deficiency of the frataxin protein. Frataxin protein deficiency is associated with Nrf2 dysregulation, which is linked to impaired cellular energy production, mitochondrial dysfunction, oxidative stress, and inflammation—all of which together lead to neurodegeneration.1
The precise mechanism by which omaveloxolone exerts its therapeutic effect in patients with FA is unknown. Omaveloxolone has been shown to activate the Nrf2 pathway in vitro and in vivo in animals and humans. The Nrf2 pathway is involved in the cellular response to
oxidative stress.2
Nrf2=nuclear factor erythroid 2-related factor 2.