Arrowhead Earns $10 Million Phase 1 Milestone Payment

Arrowhead Pharmaceuticals Inc. (NASDAQ: ARWR) today announced that it earned a $10 million milestone payment from Janssen Pharmaceuticals, Inc., (Janssen) part of the Janssen Pharmaceutical Companies of Johnson & Johnson. The milestone payment was earned after Janssen dosed the fifth patient in a Phase 1 clinical study of ARO-JNJ1, an investigational RNAi therapeutic candidate which utilizes Arrowhead’s proprietary Targeted RNAi Molecule (TRiM™) platform.

Arrowhead entered into a license and collaboration agreement, and into a research collaboration and option agreement, with Janssen in October 2018. Arrowhead is eligible for additional payments when future milestones are met and is also eligible for royalties on commercial sales of ARO-JNJ1.

About Arrowhead Pharmaceuticals

Arrowhead Pharmaceuticals develops medicines that treat intractable diseases by silencing the genes that cause them. Using a broad portfolio of RNA chemistries and efficient modes of delivery, Arrowhead therapies trigger the RNA interference mechanism to induce rapid, deep, and durable knockdown of target genes. RNA interference, or RNAi, is a mechanism present in living cells that inhibits the expression of a specific gene, thereby affecting the production of a specific protein. Arrowhead’s RNAi-based therapeutics leverage this natural pathway of gene silencing.

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Source: Arrowhead Pharmaceuticals, Inc.

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