Quest is a publicly traded, Alberta-based biotechnology company committed to the development and commercialization of oncology product candidates. It is developing a series of products for the treatment of cancer based on its pipeline of SonoLight compounds; and monoclonal antibodies which target certain tumor antigens that are presented in a variety of cancers. Quest believes that by combining these antibodies with other cancer therapies such as chemotherapy, photodynamic therapy or radioimmuno therapy, it can potentially further complement and enhance treatment outcomes compared to antibody treatment alone.