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Arrowhead to Present at Upcoming April Conferences

PASADENA, Calif.–(BUSINESS WIRE)– Arrowhead Research Corporation (NASDAQ: ARWR), a biopharmaceutical company developing targeted RNAi therapeutics, today announced that the company will make presentations at the following upcoming events.

The International Liver Congress™ 2016 (ILC 2016) – The Annual Meeting of the European Association for the Study of the Liver – Barcelona, Spain, April 13-17, 2016

April 14, 8:00 a.m. CEST – Zhao Xu, Ph.D., Arrowhead senior scientist, and coauthors, will deliver a poster presentation titled, “Treatment of chronically HBV-infected chimpanzees with RNA interference therapeutic ARC-520 led to potent reduction of viral mRNA, DNA and proteins without observed drug resistance” (abstract THU-213)

April 14, 8:00 a.m. CEST – Man-Fung Yuen, M.D., Ph.D., chair of gastroenterology and hepatology, The University of Hong Kong, and deputy chief of service, Queen Mary Hospital department of medicine, Hong Kong, and coauthors, will deliver a poster presentation titled, “Differential reductions in viral antigens expressed from cccDNA vs integrated DNA in treatment naïve HBeAg positive and negative patients with chronic HBV after RNA interference therapy with ARC-520” (abstract THU-193)

April 15, 8:00 a.m. CEST – Renae Walsh, Ph.D., senior scientist, Victorian Infectious Diseases Reference Laboratory, and coauthors, will deliver a poster presentation titled, “Predicting HBsAg clearance responses during ARC-520 RNA interference (RNAi) therapy based on HBsAg epitope profile analysis” (abstract FRI-144)

American Association for Cancer Research Annual Meeting 2016 (AACR16) – New Orleans, April 16-20, 2016

April 18, 1:00 p.m. CDT – So Wong, Ph.D., Arrowhead director of oncology, and coauthors, will deliver a poster presentation titled, “Novel HIF-2α targeted RNAi therapeutic for renal cell carcinoma” (abstract 2064)

Copies of presentation materials can be accessed by visiting the Events section of the company’s website after each presentation is delivered.

About ARC-520

Arrowhead’s RNAi-based candidate ARC-520 is being investigated in the treatment of chronic HBV infection. The small interfering RNAs (siRNAs) in ARC-520 intervene at the mRNA level, upstream of the reverse transcription process where current standard of care nucleotide and nucleoside analogues act. Arrowhead is investigating ARC-520 specifically to determine if it can be used to achieve a functional cure, which is an immune clearant state characterized by hepatitis B s-antigen negative serum with or without seroconversion. Approximately 350-400 million people worldwide are chronically infected with the hepatitis B virus, which can lead to cirrhosis of the liver and is responsible for 80% of primary liver cancers globally. Arrowhead is currently conducting Phase 2b multiple dose and combination studies in chronic HBV patients. In clinical studies to date, the most common reported adverse events in all subjects completing treatment were upper respiratory infection and headache.

About Arrowhead Research Corporation

Arrowhead Research Corporation is a biopharmaceutical company developing targeted RNAi therapeutics. The company is leveraging its proprietary Dynamic Polyconjugate delivery platform to develop targeted drugs based on the RNA interference mechanism that efficiently silences disease-causing genes. Arrowhead’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 diseases, ARC-LPA for cardiovascular disease, and ARC-HIF2 for renal cell carcinoma.

For more information please visit http://www.arrowheadresearch.com, or follow us on Twitter @ArrowRes. To be added to the Company’s email list and receive news directly, please visit http://ir.arrowheadresearch.com/alerts.cfm.

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. Arrowhead Research Corporation’s 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 Research Corporation.

Source: Arrowhead Research Corporation

View source version on businesswire.com: http://www.businesswire.com/news/home/20160330005239/en/

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Source: Arrowhead Research Corporation