Item 7.01. Regulation FD Disclosure.
A copy of presentation materials describing the business of Ardea Biosciences, Inc. (the "Company"), all or a part of which may be used by the Company in scientific or investor presentations from time to time, is filed as Exhibit 99.1 hereto. These materials include updates to information previously furnished by the Company regarding the Company's research and development programs, including information relating to expected research and development milestones. The Company does not intend to file any update of these presentation materials in the future. The fact that these updated presentation materials are being furnished should not be deemed an admission as to the materiality of any information contained in the materials. The information in this Item 7.01 and Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of
Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing. Item 9.01 Financial Statements and Exhibits.
(d) Exhibits. The following material is filed as an exhibit to this Current Report on Form 8-K:

Exhibit Number Document Description 99.1 Ardea Biosciences, Inc. presentation materials updated as of November 2, 2009, and to be used from time to time thereafter.

---

Table of Contents