Dravet syndrome (DS) is a rare and severe form of epilepsy that causes intellectual disability and motor deficits and can lead to premature death. A loss-of-function mutation in one copy of SCN1A, encoding the voltage-gated sodium channel (NaV)1.1 α subunit, is the most frequent alteration found in DS patients and has been linked with inhibitory neuron dysfunction. Despite the potential of gene therapies, AAV-mediated SCN1A gene replacement for DS has not been possible yet due to AAV genome size constraints.
Positive early stage data for Verve Therapeutics Inc.’s base editing therapy points to a range of development options, including bringing partner Eli Lilly and Co. in a little closer. The new data helped ease the company’s pain from the April 2 enrollment pause of a similarly designed therapy from Verve. Verve’s Heart-2 phase Ib of VERVE-102 in treating 14 patients with heterozygous familial hypercholesterolemia and/or premature coronary artery disease showed one infusion led to dose-dependent decreases in blood PCSK9 protein levels and low density lipoprotein cholesterol.
Despite being known for more than 150 years, Duchenne muscular dystrophy (DMD) remains an untreatable disease affecting approximately 1 of every 3,500-5,000 males. Muscles in patients express no or inactive dystrophin, rendering them weak and less mobile.
