Oncolytics Biotech Inc. Starts Patient Enrolment in U.K. Combination REOLYSIN(R)/Docetaxel trial

CALGARY, July 23 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc. ("Oncolytics") (TSX:ONC, NASDAQ:ONCY) has commenced patient enrolment in its U.K. clinical trial to evaluate the anti-tumour effects of systemic administration of REOLYSIN(R) in combination with docetaxel (Taxotere(R)) in patients with advanced cancers including bladder, prostate, lung and upper gastro-intestinal. In preclinical studies, the combination of REOLYSIN(R) and various taxanes including docetaxel has been shown to be synergistic against a variety of cancer cell lines.

"Taxanes are widely used in the treatment of cancer but have the potential to be significantly more efficacious when used with REOLYSIN(R), which has already shown anti-tumour activity on its own," said Dr. Brad Thompson, President and CEO of Oncolytics. "This is the third in a series of clinical trials assessing REOLYSIN(R) in combination with current, widely used chemotherapeutic agents. Commencing enrolment in this trial is another significant step forward in the development of REOLYSIN(R) as a cancer therapeutic."

The principal investigator is Professor Hardev Pandha of St. Lukes Cancer Centre, Royal Surrey County Hospital, Guildford, U.K.

The trial (REO 010) has two components. The first is an open-label, dose-escalating, non-randomized study of REOLYSIN(R) given intravenously with docetaxel every three weeks. A standard dosage of docetaxel will be delivered with escalating dosages of REOLYSIN(R) intravenously. A maximum of three cohorts will be enrolled in the REOLYSIN(R) dose escalation portion. The second component of the trial will immediately follow and will include the enrolment of a further 12 patients at the maximum dosage of REOLYSIN(R) in combination with a standard dosage of docetaxel.

Eligible patients include those who have been diagnosed with advanced or metastatic solid tumours such as bladder, prostate, lung or upper gastro-intestinal cancers that are refractory (have not responded) to standard therapy or for which no curative standard therapy exists. The primary objective of the trial is to determine the Maximum Tolerated Dose (MTD), Dose-Limiting Toxicity (DLT), recommended dose and dosing schedule and safety profile of REOLYSIN(R) when administered in combination with docetaxel. Secondary objectives include the evaluation of immune response to the drug combination, the body's response to the drug combination compared to chemotherapy alone and any evidence of anti-tumour activity. This is the third trial beginning in 2007 that is examining the role of REOLYSIN(R) in combination with standard chemotherapeutics.

In the U.K. and the U.S., approximately 600,000 people are diagnosed annually with bladder, lung, prostate and upper gastro-intestinal cancers.

About Oncolytics Biotech Inc.

Oncolytics is a Calgary-based biotechnology company focused on the development of oncolytic viruses as potential cancer therapeutics. Oncolytics' clinical program includes a variety of Phase I and Phase II human trials using REOLYSIN(R), its proprietary formulation of the human reovirus, alone and in combination with radiation or chemotherapy. For further information about Oncolytics, please visit www.oncolyticsbiotech.com

For more information about docetaxel (taxotere(R)) please visit www.taxotere.com

This press release contains forward-looking statements, within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements, including the Company's expectations related to the U.K. combination REOLYSIN(R)/docetaxel clinical trial and the Company's belief as to the potential of REOLYSIN(R) as a cancer therapeutic, involve known and unknown risks and uncertainties, which could cause the Company's actual results to differ materially from those in the forward-looking statements. Such risks and uncertainties include, among others, the availability of funds and resources to pursue research and development projects, the efficacy of REOLYSIN(R) as a cancer treatment, the tolerability of REOLYSIN(R) outside a controlled test, the success and timely completion of clinical studies and trials, the Company's ability to successfully commercialize REOLYSIN(R), uncertainties related to the research and development of pharmaceuticals and uncertainties related to the regulatory process. Investors should consult the Company's quarterly and annual filings with the Canadian and U.S. securities commissions for additional information on risks and uncertainties relating to the forward looking statements. Investors are cautioned against placing undue reliance on forward-looking statements. The Company does not undertake to update these forward-looking statements.

SOURCE Oncolytics Biotech Inc.