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Mateon Announces Initiation of Investigator-Sponsored Phase 1 Study of CA4P in Combination with Everolimus in Neuroendocrine Tumors

5 days ago

SOUTH SAN FRANCISCO, Calif., April 20, 2017 (GLOBE NEWSWIRE) — Mateon Therapeutics, Inc. (MATN), a biopharmaceutical company developing vascular disrupting agents (VDAs) for the treatment of orphan oncology indications, today announced that the Markey Cancer Center at the University of Kentucky has enrolled the first patient into a new phase 1 study of CA4P in combination with everolimus for the treatment of neuroendocrine tumors.

“The combination of CA4P and everolimus has the potential to decrease the ability of tumor cells to recover between CA4P treatment cycles,” stated Lowell B. Anthony, M.D., Professor of Medicine and Chief, Division of Medical Oncology, Markey Cancer Center, University of Kentucky. “This is the first trial testing this hypothesis in neuroendocrine tumors – with CA4P disrupting the existing tumor blood supply and everolimus preventing a new tumor blood supply from re-forming. Our findings from this trial should lead to a larger clinical study once we have identified the optimal dose and schedule for the combination of these two agents.”

Study MCC-2016-088 is designed to demonstrate whether the addition of CA4P to everolimus may improve tumor control without additional toxicity. Everolimus has been approved by the U.S. Food and Drug Administration for the treatment of advanced pancreatic neuroendocrine tumors and progressive gastrointestinal neuroendocrine tumors, among other indications, and is marketed by Novartis under the tradename AFINITOR®. Mateon has previously demonstrated initial evidence of efficacy for CA4P in patients with neuroendocrine tumors when CA4P was provided as a single agent.

Study MCC-2016-088 is being sponsored, funded, and conducted by the Markey Cancer Center, with Mateon providing the investigational drug. The study is designed as a single center, open label, phase 1 clinical trial for patients with grade 1-3 gastroenteropancreatic neuroendocrine tumors. In the first part of the study, up to 15 patients will be treated with everolimus in combination with two different dosing regimens of CA4P to establish appropriate CA4P dosing levels and evaluate the safety of the drug combination.  The second part of the study is designed to enroll 15 additional patients for assessment of additional safety and efficacy data. Patients enrolled in MCC-2016-088 will be treated with CA4P and everolimus for 12 weeks.

For further information about the clinical trial, please visit www.clinicaltrials.gov, Study NCT03014297.

Mateon has received orphan drug designation for CA4P for the treatment of neuroendocrine tumors from both the U.S. Food and Drug Administration and from the European Medicines Agency.

About Mateon

Mateon Therapeutics, Inc. is a biopharmaceutical company seeking to realize the full potential of vascular targeted therapy (VTT) in oncology. VTT includes vascular disrupting agents (VDAs) such as the investigational drugs that Mateon is developing, and anti-angiogenic agents (AAs), a number of which are FDA-approved and widely used in cancer treatment. These two approaches have distinct yet complementary mechanisms of action.

At Mateon, we believe that we can significantly improve cancer therapy by employing these two complementary approaches simultaneously. When utilized this way, VDAs obstruct existing blood vessels in the tumor leading to significant central tumor cell death while AAs prevent the formation of new tumor blood vessels.

Mateon is committed to leveraging our intellectual property and the product development expertise of our highly skilled management team to enable VTT to realize its true potential and to bring much-needed new therapies to cancer patients worldwide.

Safe Harbor Statement

Certain statements in this news release, including, but not limited to, those concerning the advancement of CA4P, the efficacy of CA4P in combination with everolimus, the results of clinical trials, future clinical trials, the potential significance of the phase 1 study of CA4P in combination with everolimus and its relation to other clinical studies are considered “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. They can be affected by inaccurate assumptions Mateon might make or by known or unknown risks and uncertainties, including, but not limited to: the uncertainties as to the future success of ongoing and planned clinical trials; the unproven safety and efficacy of products under development or that may be developed in the future; and the sufficiency of the Company’s cash resources to conduct and complete future clinical and pre-clinical trials. Consequently, no forward-looking statement can be guaranteed, and actual results may vary materially. Additional information concerning factors that could cause actual results to materially differ from those in the forward-looking statements is contained in Mateon’s reports to the Securities and Exchange Commission, including Mateon’s reports on Forms 10-Q, 8-K and 10-K. However, Mateon undertakes no obligation to publicly update forward-looking statements, whether because of new information, future events or otherwise

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