This document discusses project cost management. It defines cost and identifies different cost elements like materials, labor, expenses and overheads. It also discusses types of costs like fixed and variable costs. Cost estimation, analysis and management strategies are important for effective project planning and evaluation. Clinical trials require significant costs for preclinical and various phases of testing to generate safety and efficacy data for new drugs or treatments. Proper cost analysis is needed to assess total expenditures and determine if a project's revenues will cover its costs.