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MabVax Therapeutics' HuMab-5B1 Cancer Therapeutic Featured in Presentation at AACR Special Meeting on Pancreatic Cancer

SAN DIEGO, May 16, 2016 /PRNewswire/ -- MabVax Therapeutics Holdings, Inc. (OTCQB: MBVX), a clinical-stage immuno-oncology drug development company, announces that its lead cancer therapeutic HuMab-5B1 (MVT-5873) was featured in a poster presentation on May 13th at the American Association for Cancer Research (AACR) Special Conference on Pancreatic Cancer: Advances in Science and Clinical Care, held in Orlando, Florida.  MVT-5873 is currently being evaluated in an open-label, multicenter, dose-escalation Phase I clinical trial as a single agent and in combination with gemcitabine/nab-paclitaxel in patients with metastatic pancreatic cancer.

"The poster presentation provides compelling data as to the potential benefits of combining MVT-5873 with the standard of care chemotherapeutic regimen gemcitabine/nab-paclitaxel (Abraxane®) for patients with advanced pancreatic cancer," said David Hansen, CEO of MabVax. "In this study, MVT-5873 administered as a single agent demonstrated antitumor activity in a xenograft mouse model of human pancreatic cancer.  Moreover, when combined with gemcitabine/nab-paclitaxel, MVT-5873 potentiated the anti-tumor activity of the chemotherapy.  Importantly, MVT-5873 activity in these models was demonstrated at doses clinically relevant to our ongoing Phase I trial in patients with metastatic pancreatic cancer."

The poster "Antitumor activity of MVT-5873, a monoclonal antibody targeting sialyl Lewisa, alone and in combination with gemcitabine/nab-paclitaxel in a BxPC3 human pancreatic cancer xenograft model," (Ragupahti, et al.) was presented by Paul Maffuid, Ph.D., Executive Vice President of Research and Development of MabVax.  The study data showed that in a BxPC3 human pancreatic cancer model, MVT-5873 potentiates the activity of a standard of care regimen for patients.  The results of the investigation include a comparison of pharmacokinetics and pharmacodynamics and provide evidence for tumor absorption.  These data are substantiated by IHC studies that indicate specific binding of MVT-5873 to BxPC3 tumor tissues, with uptake intensified relative to dose administration.

"It is exciting to further accumulate data validating our fully human antibody approach to cancer therapeutics and to present these data at the AACR Special Meeting on Pancreatic Cancer," added Mr. Hansen. "We expect to begin a second Phase I trial later this month, with this trial evaluating MVT-2163, also based on our HuMab-5B1 antibody, as a next-generation PET imaging agent for the diagnosis and management of patients with pancreatic cancer.  We anticipate reporting preliminary data from both Phase I trials during the third quarter of this year.  In addition we are planning to enroll patients in the second half of this year."

About MabVax:
MabVax Therapeutics Holdings, Inc. is a clinical-stage biotechnology company focused on the development of antibody-based products to address unmet medical needs in the treatment of cancer. MabVax has discovered a pipeline of human monoclonal antibody products based on the protective immune responses generated by patients who have been immunized against targeted cancers with the Company's proprietary vaccines. MabVax has the exclusive license to the therapeutic vaccines from Memorial Sloan Kettering Cancer Center.  MabVax is currently engaged in two Phase I clinical trials of fully human monoclonal antibody HuMab 5B1, both as a therapeutic agent (MVT-5873) and later this quarter as a next-generation PET imaging agent (MVT-2163).  MabVax also has two cancer vaccines targeting recurrent sarcoma and ovarian cancer in proof-of-concept Phase II multicenter clinical trials. Additional information is available at www.mabvax.com.

Forward Looking Statements:
This press release contains "forward-looking statements" regarding matters that are not historical facts, including statements relating to presentations at the AACR Annual Meeting.  We have no assurance that all of the product development pipeline will be fully developed by the Company.  Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements.  Words such as "anticipates," "plans," "expects," "intends," "will," "potential," "hope" and similar expressions are intended to identify forward-looking statements.  These forward-looking statements are based upon current expectations of the Company and involve assumptions that may never materialize or may prove to be incorrect.  Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of various risks and uncertainties.  Detailed information regarding factors that may cause actual results to differ materially from the results expressed or implied by statements in this press release relating to the Company may be found in the Company's periodic filings with the Securities and Exchange Commission, including the factors described in the section entitled "Risk Factors" in its annual report on Form 10-K for the fiscal year ended December 31, 2015, as amended and supplemented from time to time and the Company's Quarter Reports on Form 10-Q and other filings submitted by the Company to the SEC, copies of which may be obtained from the SEC's website at www.sec.gov. The parties do not undertake any obligation to update forward-looking statements contained in this press release.

Investor Contact:
Jody Cain, Senior Vice President
LHA
310-691-7100
jcain@LHAI.com

 

SOURCE MabVax Therapeutics Holdings, Inc.