Pfizer, Ionis Pharma discontinue Vupanorsen Clinical Development Program
New York: Pfizer Inc. and Ionis Pharmaceuticals, Inc. have recently announced the discontinuation of the Pfizer-led clinical development program for vupanorsen (PF-07285557), an investigational antisense therapy that was being evaluated for potential indications in cardiovascular (CV) risk reduction and severe hypertriglyceridemia (SHTG).
Pfizer made this decision after a thorough review of data from the global Phase 2b, multicenter, randomized, double-blind, placebo-controlled, dose-ranging, 8-arm parallel-group study of vupanorsen in statin-treated participants with dyslipidemia — also known as TaRgeting ANGPTL3 with an aNtiSense oLigonucleotide in AdulTs with dyslipidEmia (TRANSLATE-TIMI 70).
As previously announced, the study met its primary endpoint, achieving a statistically significant reduction in non-high density lipoprotein cholesterol (non-HDL-C) — as well as statistically significant reductions in triglycerides (TG) and angiopoietin-like 3 (ANGPTL3). However, the magnitude of non-HDL-C and TG reduction observed did not support continuation of the clinical development program for CV risk reduction or SHTG. Vupanorsen was also associated with dose-dependent increases in liver fat, and higher doses were associated with elevations in the liver enzymes alanine aminotransferase (ALT) and aspartate aminotransferase (AST).
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