MEI Pharma, Inc., formerly Marshall Edwards, Inc., is a development-stage oncology company. The Company is engaged in the development of drugs for the treatment of cancer. The Company focuses on the clinical development of therapeutics targeting cancer metabolism. The Company is a wholly owned subsidiary of Novogen Limited (Novogen). As of September 26, 2011, Novogen owned approximately 51.5% interests in the Company. The Company's has two geographic segments: the United States and Australia. The Company has two clinical product development programs, which include NADH Oxidase Inhibitors and Mitochondrial Inhibitors. NADH Oxidase Inhibitors includes Phenoxodiol and ME-143. Mitochondrial Inhibitors includes NV-128 and ME-344. Marshall Edwards Pty Ltd. is a wholly owned subsidiary of the Company. In February 2013, Novogen Limited completed its exchanged offer through which it was to split off its 63.5% interest in the Company.