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Chemokine Therapeutics Announces Preliminary Results of CTCE-9908,Phase Ib/II Clinical Trial in Late Stage Cancer Patients


VANCOUVER, March 12, 2007 /PRNewswire-FirstCall/ - Chemokine Therapeutics Corp. ("Chemokine Therapeutics" or the "Company") , a biotechnology company developing chemokine-based therapies to treat cancer, blood disorders, and vascular disease today announced positive preliminary data and the successful completion of the dose-escalation portion of its Phase Ib/II clinical trial for CTCE-9908, the Company's anti-cancer drug candidate. No dose limiting toxicities were observed in any of the cancer patients and two out of three patients with ovarian cancer responded positively and exhibited stable disease.

Chemokine Therapeutics will now proceed with the remaining portion of the clinical trial in which up to twenty additional patients will be treated at 5mg/kg/day. The Company expects to enroll the remainder of the patients and complete the current trial by the end of Q3 2007. The Company has also accelerated its efforts to initiate a large Phase II program in the U.S. by the end of 2007. Accordingly, a pre-IND meeting has been scheduled with the FDA to discuss the Company's future clinical trial program.

"We are very pleased that no dose-limiting toxicities were observed in the first part of the trial and encouraged by the positive outcome in the small group of ovarian cancer patients," said Dr. Hassan Salari, Chemokine Therapeutics President and CEO. "It is quite remarkable to see clinical evidence of efficacy considering these patients have exhausted every therapeutic avenue. We are now looking to rapidly expand the number of patients in Phase II clinical trials of CTCE-9908 to examine the potential broader applicability of this novel oncology drug in the treatment of cancer patients."

The primary purpose of this study is dose-selection and evaluation of safety and tolerability of CTCE-9908. CTCE-9908 is administered via a 30-minute infusion on weekdays over a treatment p eriod of four consecutive weeks (20 doses in total), with each subject receiving a dose level defined by the dose-escalation schedule. The Phase Ib/II trial includes subjects with advanced tumors refractory to the current standard of care. The trial enrolled patients at the Clinical Research Unit of both the Juravinski Cancer Center (Hamilton, Ontario, Canada) and the Sir Mortimer B. Davis - Jewish General Hospital (Montreal, Quebec, Canada).

During the dose-escalation portion of the Phase Ib/II trial, a total of ten patients were treated with CTCE-9908 with doses ranging from 0.25 to 5 mg/kg/day. Six of the patients received the expected 20 dose course of treatment. Eight of the ten patients received doses within the expected therapeutic range of 1 to 5 mg/kg/day. Among these patients, there were three with late stage ovarian cancer. Two of the three ovarian cancer patients demonstrated stable disease using the Response Evaluation Criteria in Solid Tumors (RECIST) when comparing the size of target tumors at baseline before treatment with CTCE-9908 to the assessment performed at completion of therapy. One of these patients defined as stable disease had an overall decrease tumour mass with an associated decrease of greater than 50% in CA-125 after 9 doses of CTCE-9908 while receiving no other therapy. CA-125 is an ovarian cancer biomarker that is used to monitor disease status and response to treatment.

The daily infusions at all dose levels were generally well tolerated with one subject at the 5mg/kg dose level experiencing moderate localized phlebitis that was attributed to the study drug. No serious adverse events were recorded that were attributed to the use of CTCE-9908 after 20 or more doses.

About CTCE-9908

CTCE-9908 is a peptide analog of the Chemokine SDF-1, and an antagonist of its receptor, CXCR4. SDF-1 is the only known naturally occurring chemokine that binds to CXCR4, which is present on many cancer cells. This binding proces s is believed to be critical in angiogenesis and in the metastasis (or spread) of cancer cells to distant locations in the body, where they form new tumors. Approximately 90% of cancer deaths are due to metastasis. We believe that CTCE-9908 interferes with the metastatic process of cancers by both preventing them to spread and blocking the blood supply to the cancer cells.

About Chemokine Therapeutics Corp.

Chemokine Therapeutics is a product-focused biotechnology company developing drugs in the field of chemokines. Chemokines are a class of signaling proteins which play a critical role in the growth, differentiation, and maturation of cells necessary for fighting infection as well as tissue repair and regeneration. Chemokines also have an important role in cancer metastasis and growth. Chemokine Therapeutics is a leader in research in the field of chemokines and has several products in various stages of development.

Safe Harbor Statement under the U.S. Private Securities Litigation Reform Act of 1995: Statements in this document regarding managements' future expectations, beliefs, goals, plans or prospects constitute forward-looking statements that involve risks and uncertainties, which may cause actual results to differ materially from the statements made. For this purpose, any statements that are contained herein that are not statements of historical fact may be deemed to be forward-looking statements. Without limiting the foregoing, the words "believes", "anticipates", "plans", "intends", "will", "should", "expects", "projects", and similar expressions are intended to identify forward-looking statements. You are cautioned that such statements are subject to a multitude of risks and uncertainties that could cause actual results, future circumstances, or events to differ materially from those projected in the forward-looking statements. These risks include, but are not limited to, those associated with the success of research and development p rograms, the regulatory approval process, competition, securing and maintaining corporate alliances, market acceptance of the Company's products, the availability of government and insurance reimbursements for the Company's products, the strength of intellectual property, financing capability, the potential dilutive effects of any financing, reliance on subcontractors and key personnel and other risks detailed from time-to-time in the Company's public disclosure documents and other filings with the U.S. Securities and Exchange Commission and Canadian securities regulatory authorities. Forward-looking statements are made as of the date hereof, and the Company disclaims any intention and has no obligation or responsibility, except as required by law, to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

CONTACT: Chemokine Therapeutics Corp., Mr. Don Evans, Director of Public Relations, Phone: (604) 822-0305 or 1-888-822-0305, Fax: (604) 822-0302, E-mail: , Internet:; Equicom Group, Joanna Longo, Investor Relations, Phone: (416) 815-0700 ext. 233, Fax: (416) 815-0080, E-mail:

CONTACT: Chemokine Therapeutics Corp., Mr. Don Evans, Director of PublicRelations, Phone: (604) 822-0305 or 1-888-822-0305, Fax: (604) 822-0302,E-mail: , Internet:; Equicom Group,Joanna Longo, Investor Relations, Phone: (416) 815-0700 ext. 233, Fax:(416) 815-0080, E-mail:

Ticker Symbol: (Toronto:CTI.),(NASDAQ-OTCBB:CHKT)

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