Esperion falls after Phase 3 study of bempedoic acid met primary endpoint
Esperion (ESPR) announced top-line results from the second pivotal, Phase 3 study, the long-term safety study of bempedoic acid 180 mg, in this case evaluating the safety, tolerability and efficacy of bempedoic acid versus placebo in high-risk patients with atherosclerotic cardiovascular disease who are inadequately controlled with current lipid-modifying therapies, including maximally tolerated statin therapy.
The study included 2,230 patients and met the primary endpoint of safety and tolerability and the key efficacy endpoint with on-treatment LDL-C lowering of an additional 20% at twelve weeks, the company said.
Patients treated with bempedoic acid also achieved a significant reduction of 22% in high-sensitivity C-reactive protein, an important marker of the underlying inflammation associated with cardiovascular disease, Esperion added.
There were no clinically relevant differences between the bempedoic acid and placebo groups in the occurrence of adverse events with 78.5% and 78.7% respectively; or serious adverse events with 14.5% and 14.0% respectively, it added.
Discontinuations due to AEs were 10.9% and 7.1%, respectively for the bempedoic acid and placebo groups; discontinuations due to muscle-related AEs were 2.2% and 1.9%, respectively, in the bempedoic acid and placebo groups.
“In this study, the largest in our Phase 3 program, bempedoic acid was observed to be safe and well tolerated over a 52-week period, while providing clinically and statistically significant LDL-cholesterol lowering and reductions in hsCRP when added on to maximally tolerated statin therapy,” said Tim Mayleben, CEO of Esperion.
“In the coming months, results from our three remaining pivotal Phase 3 studies are expected to further validate the safety, efficacy and tolerability profile of bempedoic acid and the bempedoic acid / ezetimibe combination pill, definitively establishing these once-daily oral therapies as convenient and complementary to existing treatments for the 13 million people in the U.S. with ASCVD who live with elevated levels of LDL-cholesterol despite taking maximally-tolerated lipid-modifying therapy and remain at high risk for further cardiovascular disease or events, including heart attack and stroke.”
Esperion shares in premarket trading are down 27% to $52.40.
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