New Vascepa Approval Opens Up Treatment to Millions

The newly approved US indication for icosapent ethyl (Vascepa, Amarin) is broadly in line with the entry criteria for the REDUCE-IT trial and includes a large high-risk primary prevention population, as well as those with established cardiovascular disease (CVD). The drug, thus, could well be used by millions of patients in the United States alone.

The high-dose, purified eicosapentaenoic acid (EPA) product was approved last week by the US Food and Drug Administration (FDA) for cardiovascular risk reduction among adults already taking maximally tolerated statins with triglyceride levels of 150 mg/dL or higher who have either established CVD or diabetes and two or more additional risk factors for CVD.

The approval is based largely on the REDUCE-IT trial’s finding of a 25% reduction in risk for major adverse cardiovascular events vs placebo. The FDA stated that the approval is the first for an agent with this specific indication.

Noting that it recognizes the need for additional medical treatments for CVD, the FDA says the new approval “will give patients with elevated triglycerides and other important risk factors, including heart disease, stroke and diabetes, an adjunctive treatment option that can help decrease their risk of cardiovascular events.”

The drug was unanimously recommended for approval by the FDA’s Endocrinologic and Metabolic Drugs Advisory Committee last month. But while the committee all agreed on its use in patients with established CVD, which made up 70% of the REDUCE-IT population, they were divided on whether the indication should be extended to the high-risk primary prevention population, who made up just 30% of patients in the study.

Nonetheless, the FDA has gone for a broad indication based on the whole REDUCE-IT population.

In a conference call following the approval, Steven Ketchum, PhD, chief scientific officer at Amarin, pointed out that the primary prevention population stipulated in the new approval differed very slightly from the REDUCE-IT enrollment criteria.

The trial specified that patients with diabetes should be older than 50 with one other cardiovascular risk factor, whereas the approved population is for diabetes and two cardiovascular risk factors. But as these two risk factors are not specified, they could include age, cigarette smoking, hypertension or use of an antihypertensive agent, low high-density lipoprotein cholesterol, high C-reactive protein, body mass index above 25 kg/m², renal dysfunction, retinopathy, albuminuria, or an ankle branchial index below 0.9, Ketchum said.

“So while the label asks for two other risk factors, one of these could be age; so we believe the label is actually slightly broader than the REDUCE-IT inclusion criteria, and doctors have been left with significant leeway to decide which risk factors to consider on top of diabetes.”

Craig Granowitz, MD, PhD, chief medical officer at Amarin, noted that: “It is difficult to precisely define the size of the population now eligible for Vascepa, but it is big.”

https://www.medscape.com/viewarticle/922865