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FLEMINGTON, N.J., May 15, 2013 /PRNewswire/ -- Arno Therapeutics, Inc. (OTCQB: ARNI), a clinical stage biopharmaceutical company focused on the development of oncology therapeutics, today announced new, positive data from three studies supporting its investigational compound onapristone to be presented at the American Society of Clinical Oncology (ASCO) 2013 Annual Meeting, which is being held May 31-June 4, 2013 in Chicago, Illinois.
Three separate preclinical studies support further investigation of onapristone - an orally-administered, investigational type 1 progestin receptor antagonist - and the development of a diagnostic test for the compound to identify patients with activated progesterone receptor (APR) as a potential biomarker of anti-progestin activity in endometrial and breast cancers. Recently, Arno Therapeutics announced its collaboration with Clarient Diagnostic Services Inc., a GE healthcare company, and leading provider of cancer diagnostic testing, to develop a diagnostic test to identify cancerous tumors with APR.
Onapristone is believed to work by binding to a protein called the progesterone receptor, thereby inhibiting dimerization, phosphorylation and DNA transcription activity. Progesterone receptors (PRs) are found in particular cells including those of the female reproductive tissue and some cancers.[i] The hormone progesterone binds to the receptors and may cause the cells to grow.i Preclinical studies have shown that PRs can play a role as drivers of malignant cell growth in certain cancers."We are pleased with the findings as they support the development of a diagnostic test for onapristone to help identify patients with activated progesterone receptors in endometrial and breast cancers who are most likely to benefit from treatment in these difficult-to-treat diseases," said Glenn Mattes , chief executive officer and president, Arno Therapeutics. "These data add to the growing body of knowledge indicating the potential of the compound to fill a high unmet medical need and we plan to pursue a global orphan drug designation in endometrial cancer."
The findings will be presented during the following poster presentations:
These findings support evaluating anti-progestins as a therapeutic target alone or in combination with anti-estrogens.
"Collectively, these new data represent a crucial step for Arno Therapeutics as they provide further evidence of the potential of onapristone as a personalized therapy across various female and male-related cancers and the potential for a diagnostic test to help identify the right treatment for the right patient at the right time," said Mr. Mattes. "We are committed to further evaluating onapristone as a treatment for select patients and are looking forward to initiating studies evaluating dosing and pharmacokinetics in patients later this year."
About Breast CancerIn the United States, over 232,300 new cases of invasive breast cancer are expected to be diagnosed in women and over 2,200 new cases are expected in men during 2013. After cancers of the skin, breast cancer is the most frequently diagnosed cancer in women. More than 40,000 breast cancer deaths are expected in 2013, with the majority in women. Breast cancer ranks second as a cause of cancer death in women, following lung cancer. [ii]
About Endometrial CancerIn the United States, about 49,500 cases of cancer of the uterine corpus (endometrium) - the body of the uterus - are expected to be diagnosed in 2013 and typically occur in the endometrium (lining of the uterus). About 8,200 deaths are expected in 2013.ii
About Arno TherapeuticsArno Therapeutics is a clinical stage biopharmaceutical company developing innovative products for the treatment of cancer. Arno has exclusive worldwide rights to develop and market three innovative anti-cancer product candidates. These compounds are in clinical or preclinical development as product candidates to treat hematologic malignancies and solid tumors. For more information about the company, please visit www.arnothera.com.
Forward-Looking StatementsThis press release contains forward-looking statements that involve substantial risks and uncertainties. These statements are often, but not always, made through the use of words or phrases such as "anticipates," "expects," "plans," "believes," "intends," and similar words or phrases. These forward-looking statements include, without limitation, statements regarding the timing, progress and anticipated results of the clinical development of onapristone, Arno's use of the diagnostic test being developed with Clarient in its planned Phase I trial of onapristone, as well as Arno's strategy, future operations, outlook, milestones, future financial position, future financial results, plans and objectives. We may not actually achieve these plans, intentions or expectations and Arno cautions investors not to place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements we make. Various important factors could cause actual results or events to differ materially from the forward-looking statements that we make. Such factors include, among others, risks that the results of clinical trials will not support our claims or beliefs concerning the effectiveness of onapristone or any of our other product candidates, our ability to finance the development of our product candidates, regulatory risks, and our reliance on third party researchers and other collaborators. Additional risks are described in the company's Annual Report on Form 10-K for the year ended December 31, 2012. Arno is providing this information as of the date of this press release and does not undertake any obligation to update any forward-looking statements as a result of new information, future events or otherwise.
[i] National Cancer Institute. NCI Dictionary of Cancer Terms. Available at: http://www.cancer.gov/dictionary?cdrid=423248. Last accessed: May 7, 2013.
[ii] American Cancer Society. Cancer Facts & Figures 2013. Available at: http://www.cancer.org/acs/groups/content/@epidemiologysurveilance/documents/document/acspc-036845.pdf Last accessed: May 7, 2013.
Contact:The Ruth GroupArno TherapeuticsStephanie Carrington (investors)Glenn Mattes scarrington@theruthgroup.comgm@arnothera.com (646) 536-7017(862) 703-7176Caitlin Cox (media)ccox@theruthgroup.com(646) 536-7033
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