Date:10/23/2008

clinical investigation of the TLR7 mechanism in HCV by taking ANA773 into a clinical trial under a two-part protocol designed to test ANA773 in both healthy volunteers and patients with HCV. In October, Anadys completed dosing in healthy volunteers. Subjects received a single dose followed by four doses taken every other day, at levels from 200 mg to 1600 mg (with six subjects receiving active and two receiving placebo in each dose cohort). No serious adverse events were reported. Biomarker induction indicative of immune activation was seen in a majority of subjects beginning at 800 mg. Some side effects commonly seen with interferon treatment, including fever and chills, were observed at higher doses, with the frequency and intensity of interferon-like side effects increasing with dose. One subject at the 1200 mg dose and two subjects at the 1600 mg dose discontinued from the trial before completion of dosing. Anadys expects to initiate Part B of the study in HCV patients within the next few weeks. Patients in the first cohort will receive 800 mg of ANA773 every other day for 28 days. Doses for subsequent cohorts will be selected based on viral load and tolerability data from the 800 mg cohort.

-- Phase I Clinical Trial of ANA773 in Oncology. Anadys continues to enroll patients in an ongoing Phase I clinical trial of ANA773 in oncology and has now completed enrollment in the third cohort.

Webcast of Conference Call

Anadys will host a conference call at 5:00 p.m. EDT today to discuss its third quarter financial results and highlights and to provide an update on its development programs. A live webcast of the call will be available online at http://www.anadyspharma.com. A telephone replay will also be available approximately one hour after completion of the call. To access the telephone replay, dial 888-286-8010 (domestic) or 617-801-6888 (international), passcode 86226986. The webcast and t
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SOURCE Anadys Pharmaceuticals, Inc. Copyright©2008 PR Newswire. All rights reserved

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