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Arrowhead Pharmaceuticals Files CTA for Investigational ARO-DIMER-PA – the First Dual Functional RNAi Therapeutic for the Treatment of Mixed Hyperlipidemia
Arrowhead Pharmaceuticals, Inc. (NASDAQ: ARWR) today announced that it has filed a request for regulatory clearance to initiate a Phase 1/2a clinical trial of ARO-DIMER-PA, the company’s investigational RNA interference (RNAi) therapeutic being developed as a potential treatment for atherosclerotic cardiovascular disease (ASCVD) due to mixed hyperlipidemia. ARO-DIMER-PA is designed to silence expression of the proprotein convertase subtilisin kexin 9 (PCSK9) and apolipoprotein C3 (APOC3) genes. This represents an important step forward for the RNAi field as it is the first clinical candidate to target two genes simultaneously in one molecule, enabled by Arrowhead’s innovative and proprietary Targeted RNAi Molecule (TRiMTM) platform.
By Arrowhead Pharmaceuticals · Via Business Wire · October 7, 2025