TELIK COMPLETES ENROLLMENT IN ASSIST-1, INITIATES ASSIST-3 AND REVIEWS STATUS OF ASSIST-2 CLINICAL TRIALS

Palo Alto, CA - December 29, 2004 – Telik, Inc. (Nasdaq: TELK) announced the completion of enrollment for the ASSIST-1 clinical trial of TELCYTA™ (TLK286), and the initiation of a new randomized Phase 3 trial of TELCYTA called ASSIST-3, in second line platinum refractory or resistant ovarian cancer.

ASSIST-1 is a randomized Phase 3 study designed to enroll 440 women in the third line treatment of platinum refractory or resistant ovarian cancer. Enrollment is complete.

ASSIST-3 is a randomized Phase 3 study designed to enroll 244 women with 122 to be treated with the combination of TELCYTA plus carboplatin, and 122 to be treated with Doxil®. The trial endpoints are objective response rate, progression-free survival and overall survival. The study is based on a positive multicenter Phase 2 study of the combination of TELCYTA plus carboplatin in platinum refractory or resistant ovarian cancer, first presented at the annual meeting of the American Society of Clinical Oncology earlier this year and later updated at the Tenth Biennial International Gynecologic Cancer Society meeting. The initial participating institutions are the Harvard Affiliated Hospitals including the Massachusetts General Hospital, Dana-Farber Cancer Institute, Brigham and Women’s Hospital, and Beth Israel Deaconess Medical Center .

ASSIST-2 is a randomized Phase 3 study designed to enroll 520 patients in the third line treatment of platinum resistant non-small cell lung cancer. Enrollment continues as planned and the company anticipates completion of enrollment in the first quarter of 2005.

TELCYTA is a small molecule drug candidate designed to be activated by GST P1-1, an enzyme present in cancer cells. Upon activation, an intracellular process known as apoptosis, or programmed cell death, occurs. TELCYTA was discovered through the application of Telik’s proprietary drug discovery technology, TRAP. TELCYTA has been successfully tested alone and in combination with approved cancer drugs in Phase 2 clinical trials in ovarian, non-small cell lung, breast and colorectal cancer.

Patients and caregivers may receive more information about ASSIST-3 by calling 866-485-5286. For information on ASSIST-2, visit www.assist-2trial.com; for ASSIST-1, visit www.assist-1trial.com.

About Telik, Inc.

Telik, Inc. of Palo Alto , CA is a biopharmaceutical company dedicated to discovering, developing and commercializing small molecule drugs to treat cancer and other serious diseases. The company’s most advanced drug development candidate is TELCYTA™ (TLK286), a cancer cell-activated small molecule product candidate that is in Phase 3 registration trials in advanced ovarian and non-small cell lung cancer. Telik’s product candidates were discovered using its proprietary drug discovery technology, TRAP, which enables the rapid and efficient discovery of small molecule drug candidates. Additional information is available at www.telik.com.

This press release contains “forward-looking” statements.  For this purpose, any statements contained in this press release that are not statements of historical fact may be deemed to be forward-looking statements, including any statements regarding the potential for TELCYTA (TLK286) to treat one or more types of cancer.  There are a number of important factors that could cause Telik's results to differ materially from those indicated by these forward-looking statements, including, among others, the following:  none of Telik’s product candidates, including TELCYTA, has been determined to be safe or effective in humans or received regulatory approval for marketing; it may take us several years to complete clinical trials of our product candidates, including TELCYTA, prior to seeking regulatory approval for any indication; success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful, and interim results of clinical trials do not necessarily predict final results; if our competitors develop and market products that are more effective than our product candidates, or obtain regulatory approval before we do, our commercial opportunity will be reduced or eliminated; if we do not obtain regulatory approval to market products in the United States and foreign countries, we will not be permitted to commercialize our product candidates; if we are unable to contract with third parties to manufacture our product candidates in sufficient quantities and at an acceptable cost, clinical development of product candidates could be delayed;and if we are unable to raise adequate funds in the future, we will not be able to continue to fund our operations and clinical trials to develop our product candidates.  These and other risks are detailed from time to time in our SEC filings, including under the heading “Additional Factors that May Effect Future Results” in our Quarterly Report on Form 10-Q for the quarter ended September 30, 2004 .  Telik does not undertake any obligation to update forward-looking statements.

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Contact:
Carol DeGuzman
Senior Director, Corporate Communications
Telik, Inc.
Tel 650-845-7728
Email cdeguzman@telik.com


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