Long-Term Effects of Extended-Release Pemafibrate Tablets on Dyslipidemia and Safety in Triglyceridemic Patients: A Phase 3, Multicenter, Randomized, Open-Label, Parallel-Group Study.

AIMS

Long-term safety and efficacy of pemafibrate once-daily extended-release (XR) tablets, taken in morning or evening, were evaluated in dyslipidemic patients with high triglycerides (TG).

METHODS

In this multicenter, randomized, open-label, parallel-group, phase 3 long-term study, dyslipidemic patients with high TG were randomly assigned to morning or evening administration of XR for 52 weeks. The dose was started at 0.2 mg/day and increased to 0.4 mg/day for patients having fasting serum TG ≥ 150mg/dL during treatment. The primary efficacy endpoint was percent change in fasting serum TG.

RESULTS

The study enrolled 121 patients, assigning 61 to morning and 60 to evening administration. The study population included 71.1% males. Mean age was 58.5±11.1 (mean±SD) years, body mass index 27.7±4.3 kg/m, and fasting TG 264.0±109.2 mg/dL. Fasting serum TG decreased significantly from baseline to 52 weeks among patients overall and in the morning and evening groups (-45.7%, -44.8%, and -46.6%, respectively, p＜0.001 vs. baseline). The difference in least-squares mean between the morning and evening groups was 3.0%, not statistically significant. The dose was increased in 82 patients (44 morning and 38 evening), with 57.3% (95%CI 45.9, 68.2) achieving fasting serum TG ＜150 mg/dL. Adverse events occurred in 83.5% and adverse drug reactions in 19.0% but with no notable safety problems.

CONCLUSIONS

Long-term, once-daily administration of XR was effective and safe in dyslipidemic patients with high TG. XR provided favorable TG-lowering effects regardless of morning or evening administration, and the XR dose increase proved effective in patients having initially inadequate response.