Arrowhead Pharmaceuticals Presents Preclinical Data on Renal Cell Carcinoma Program at AACR 2016

PASADENA, Calif.–(BUSINESS WIRE)–

Arrowhead Pharmaceuticals, Inc. (NASDAQ: ARWR) today presented a poster

on ARC-HIF2, its preclinical development program targeting HIF2-α for

the treatment of renal cell carcinoma (RCC), at the American Association

for Cancer Research Annual Meeting 2016 (AACR16), in New Orleans.

ARC-HIF2 is Arrowhead’s first RNAi therapeutic program to target tissues

outside the liver.

The poster titled, “Novel HIF-2α targeted RNAi therapeutic for renal

cell carcinoma” (abstract 2064), describes data from various stages of

development of ARC-HIF2, including RNAi trigger selection, HIF2-α target

validation, delivery and targeting ligand validation, and multiple RCC

tumor models. These data show that important advancements are being made

in this program and for Arrowhead’s Dynamic PolyconjugateTM

(DPCTM) delivery platform generally, including the following

key findings:

  • Proof-of-concept ligand dependent, functional delivery was

    demonstrated using the DPC targeted delivery platform

  • Silencing HIF2-α expression by RNA interference resulted in reduction

    of HIF-2α regulated genes

  • In two different RCC tumor bearing mouse models, ARC-HIF2 inhibited

    tumor growth and promoted tumor cell death and structural degeneration

A copy of the poster presentation is available on the Events

and Presentations page under the Investors section of the Arrowhead

website.

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. The

company’s pipeline includes ARC-520 and ARC-521 for chronic hepatitis B

virus, ARC-AAT for liver disease associated with alpha-1 antitrypsin

deficiency, ARC-F12 for hereditary angioedema and thromboembolic

disorders, ARC-LPA for cardiovascular disease, and ARC-HIF2 for renal

cell carcinoma.

For more information please visit www.arrowheadpharma.com,

or follow us on Twitter @ArrowheadPharma.

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Safe Harbor Statement under the Private Securities Litigation Reform

Act:
This news release contains forward-looking statements

within the meaning of the “safe harbor” provisions of the Private

Securities Litigation Reform Act of 1995. These statements are based

upon our current expectations and speak only as of the date hereof. Our

actual results may differ materially and adversely from those expressed

in any forward-looking statements as a result of various factors and

uncertainties, including our ability to finance our operations, the

future success of our scientific studies, our ability to successfully

develop drug candidates, the timing for starting and completing clinical

trials, rapid technological change in our markets, and the enforcement

of our intellectual property rights. Our most recent Annual Report on

Form 10-K and subsequent Quarterly Reports on Form 10-Q discuss some of

the important risk factors that may affect our business, results of

operations and financial condition. We assume no obligation to update or

revise forward-looking statements to reflect new events or circumstances.

DYNAMIC POLYCONJUGATES is a trademark of Arrowhead

Pharmaceuticals, Inc.

Source: Arrowhead Pharmaceuticals, Inc.

Arrowhead Pharmaceuticals, Inc.
Vince Anzalone, CFA
626-304-3400
ir@arrowheadpharma.com
or
Investor

Relations:
The Trout Group
Chad Rubin
646-378-2947
ir@arrowheadpharma.com
or
Media:
Russo

Partners
Matt Middleman, M.D.
212-845-4272
matt.middleman@russopartnersllc.com

Source: Arrowhead Pharmaceuticals, Inc.

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