AstraZeneca is a holding company. Through its subsidiaries, Co. is engaged in biopharmaceutical business. Co. focuses on three main therapy areas: oncology - aims to change the practice of medicine and transform the lives of patients living with cancer; cardiovascular, renal & metabolism includes treatment of four interrelated conditions - cardiovascular disease, heart failure, metabolic and renal diseases; and respiratory and immunology - aims to transform the treatment of asthma and COPD by eliminating preventable asthma attacks across disease severities and removing COPD as a cause of death through earlier, biology-led treatment.