An investigational PCSK9 inhibitor with a different mechanism from existing drugs in this class has been shown to safely and effectively lower cholesterol levels.
An investigational drug, currently known as AZD0780, lowers low-density-lipoprotein cholesterol (LDL-C) to target levels in most patients whose cholesterol is still over target despite statin therapy, results from the phase 2b PURSUIT trial show. AZD0780 inhibits PCSK9, a protein that regulates cholesterol metabolism. Inhibition of this protein has proven useful in lowering LDL-C. Current drugs in this class include two monoclonal antibodies, alirocumab and evolocumab, and a small interfering RNA, inclisiran. However, unlike current PCSK9 inhibitors, which must be injected, AZD0780 is an oral therapy. "We've had PCSK9 inhibitors on the market in the United States for 10 years," said investigator Michael Koren, MD, a cardiologist and CEO of the ENCORE Research Group in Jacksonville, Florida. However, "people are still not getting to goal," he explained during his presentation of the results at the American College of Cardiology Scientific Session 2025 in Chicago, which were published simultaneously in the Journal of the American College of Cardiology. Novel Mechanism PCSK9 prevents LDL receptors from "recycling" to the surface of hepatocytes or liver…