Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

     We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated March 12, 2008 relating to the financial statements, which appears in Threshold Pharmaceuticals, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2007. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

San Jose, California
September 12, 2008