Lixte Biotechnology Holdings, Inc. is a clinical-stage biopharmaceutical company, which engages in the business of developing a drug class called protein phosphatase 2A inhibitors. The firm is also involved in utilizing biomarker technology to identify enzyme targets associated with serious common diseases and then designing novel compounds to attack those targets. The company was founded by John S. Kovach and Robert B. Royds on May 24, 2005 and is headquartered in Boca Raton, FL.