What it is
CTX310 is an in vivo CRISPR-Cas9 therapy given intravenously to knock out ANGPTL3 in the liver, mimicking the natural loss-of-function variants that lower blood lipids. In 15 participants with uncontrolled lipid disorders on maximal therapy, a single dose reduced ANGPTL3 by a mean of nearly 80% at the higher doses, with triglycerides falling up to 84% and LDL cholesterol up to 87%. No dose-limiting toxic effects related to the therapy occurred.
Why it matters
People born with low ANGPTL3 have lower lifetime cardiovascular risk, making the gene an attractive one-and-done target. Achieving reductions of up to 87% in LDL cholesterol from a single infusion suggests gene editing could one day replace lifelong daily lipid-lowering drugs. Reaching the liver in vivo also avoids the cell-harvesting and conditioning that ex vivo editing requires.
Underlined numbers link to their source. Every metric and quoted figure is listed under Sources and data below.
Filed underCRISPR, gene editing, cardiovascular, ANGPTL3, cholesterol
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