FDA, Amarin Amend Protocol in Vascepa Outcomes Study
FDA and Amarin have agreed to amend the company’s special protocol assessment (SPA) agreement for the REDUCE-IT cardiovascular outcomes study involving Vascepa (icosapent ethyl). Currently, the drug is indicated as an adjunct to diet to reduce triglyceride levels in adult patients with severe (≥500 mg/dL) hypertriglyceridemia. Earlier this year, Amarin won concessions from FDA under a settlement over off-label promotion of Vascepa (see story).
The amended SPA “finalized details of the statistical analysis plan covering both final and interim efficacy analyses; added a second pre-specified interim efficacy analysis at approximately 80% of the 1,612 primary cardiovascular events targeted for completion of the study; and expanded to over 30 the number of pre-specified secondary and tertiary endpoints in an effort to more fully capture the broad potential clinical effects of Vascepa (icosapent ethyl) and the diversity of the patient population being studied,” the company says.
The amendment does not change the primary endpoint or the study’s overall size. The primary endpoint is the “time from randomization to the first occurrence of a composite of adjudicated cardiovascular events (including cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, coronary revascularization, or hospitalization for unstable angina),” Amarin says. Patients are being randomized 1:1 to either the Vascepa plus statin treatment arm or placebo plus statin arm. The time to the first occurrence of the composite endpoint will be compared between arms, it says.