Arno Therapeutics, Inc. (OTCQB:ARNI), a clinical stage biopharmaceutical company focused on the development of oncology therapeutics, recently announced that it has signed an agreement with Veridex, LLC, a Johnson & Johnson company, to develop a diagnostic test to detect the presence of activated progesterone receptors (APRs) as a potential biomarker of anti-progestin activity in circulating tumor cells (CTCs).