Cytokinetics Inc is a biotechnology company that develops muscle biology-driven treatments for diseases characterized by reduced muscle function, muscle weakness, and fatigue. The company develops treatments for diseases such as amyotrophic lateral sclerosis, heart failure, spinal muscular atrophy, and chronic obstructive pulmonary diseases. The treatment is based on small molecules specifically engineered to increase muscle function and contractility. The company is developing muscle-directed investigational medicines that may potentially improve the health span of people with devastating cardiovascular and neuromuscular diseases of impaired muscle function.