Zerlasiran is a siRNA (short interfering RNA) in development for high lipoprotein(a), or Lp(a), a genetically determined cardiovascular risk factor affecting around 20% of the world’s population.
Zerlasiran is a gene ‘silencing’ therapy – one that is designed to temporarily block a specific gene’s message that would otherwise trigger an unwanted effect. In this case, it aims to ‘silence’ LPA, a gene that tells the body to make a specific protein that is only found in Lp(a). By silencing the LPA gene, the levels of Lp(a) are lowered, which in turn is expected to lower the risk of heart diseases, heart attacks and strokes.
Results presented showed that zerlasiran (300 mg every 16 weeks, 300 mg every 24 weeks or 450 mg every 24 weeks) produced greater than 80% mean time-averaged placebo-adjusted reductions from baseline in Lp(a) concentrations over 36 weeks.
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