Our phosphodiesterase 7, or PDE7, program is based on our discoveries of previously unknown links between PDE7 and any addiction or compulsive disorder and between PDE7 and any movement disorders, such as Parkinson’s disease. PDE7 appears to modulate the dopaminergic system, which plays a significant role in regulating both addiction and movement. We believe that PDE7 inhibitors could be effective therapeutics for the treatment of addiction and compulsive disorders as well as for movement disorders. Data generated in preclinical studies support the use of PDE7 inhibitors in both of these therapeutic areas.
We have selected a clinical candidate and have initiated toxicology studies intended to support the submission of an Investigational New Drug application or Clinical Trial Application and subsequent clinical trials.
As of February 28, 2017, we owned two issued patents and one pending patent applications in the U.S., and 21 issued patents and 12 pending patent applications in foreign markets directed to our discoveries linking PDE7 to movement disorders, as well as one issued patent and two pending patent applications in the U.S., and seven issued patents and 23 pending patent applications in foreign markets directed to the link between PDE7 and addiction and compulsive disorders. Additionally, we exclusively control rights to three issued U.S. patents and 57 issued and five pending patent applications in foreign markets that are directed to proprietary PDE7 inhibitors.