Pharmacyclics, Inc. is a clinical-stage biopharmaceutical company focused on developing and commercializing small-molecule drugs for the treatment of cancer and immune mediated diseases. The Company's clinical development and product candidates are small-molecule enzyme inhibitors designed to target biochemical pathways involved in human diseases. As of June 30, 2011, it had three drug candidates under clinical development and a number of preclinical lead molecules. This includes an inhibitor of Bruton�s tyrosine kinase (Btk) (PCI-32765) in Phase II studies in hematologic malignancies; a Btk inhibitor lead optimization program targeting autoimmune indications, an inhibitor of Factor VIIa (PCI-27483) in a Phase II clinical trial in pancreatic cancer, and a histone deacetylase (HDAC) inhibitor (PCI-24781) in Phase I and II clinical trials in solid tumors and hematological malignancies as of June 30, 2012.