The present invention relates to RNAi agents that target the apolipoprotein C3 (APOC3) gene, such as double-stranded RNAi agents, and methods of using such RNAi agents to inhibit the expression of APOC3, and APOC3-related disorders, such as high triglycerides The present invention relates to a method for treating a subject having blood pressure.本発明は、アポリポタンパク質C3(APOC3)遺伝子を標的化するRNAi剤、例えば二本鎖RNAi剤、およびAPOC3の発現を阻害するための、かかるRNAi剤の使用方法、およびAPOC3関連障害、例えば高トリグリセリド血症を有する対象の治療方法に関する。