EXHIBIT 23.3
CONSENT OF INDEPENDENT ACCOUNTANTS
I consent to the incorporation by reference in this Registration Statement on Form S-8 of the report of Arrowhead Research Corporation of my report dated December 23, 2003, which is incorporated by reference in the Annual Report on Form 10-KSB of Arrowhead Research Corporation for the year ended September 30, 2004.
/s/ Kevin Breard, CPA
KEVIN BREARD, CPA, AN ACCOUNTANCY CORPORATION
Northridge, California
April 11, 2005