CRISPR Therapeutics Reports Positive Phase 1b Results for CTX310 in Severe Hypertriglyceridemia
CRISPR Therapeutics has announced positive Phase 1b clinical trial results for its investigational gene-editing therapy, CTX310, designed to treat severe hypertriglyceridemia (sHTG). The data, presented at the American Heart Association (AHA) Scientific Sessions 2026, showed a mean 63% reduction in triglycerides (TG) and a 65% reduction in circulating angiopoietin-like protein 3 (ANGPTL3) at Day 30 following a single-course treatment. Participants in the trial had a median baseline triglyceride concentration exceeding 1,000 mg/dL, indicating significant lipid abnormalities. All ten patients in the Phase 1b cohort had diabetes, 30% had a history of pancreatitis, and 20% had existing atherosclerotic cardiovascular disease, and all had failed prior triglyceride-lowering therapies. The therapy works by permanently disabling the ANGPTL3 gene in liver cells using CRISPR-Cas9 technology, which prevents the production of functional ANGPTL3 protein. This allows lipoprotein lipase (LPL), an enzyme that breaks down t...