When a therapeutic or vaccine candidate has completed the clinical trial process and data has been collected and analyzed, it may be submitted to relevant regulatory agencies for review. Approval from Agencies, such as the US Food and Drug Administration, is required before a therapeutic or vaccine can be marketed for use in people.

A very small fraction of the candidates that begin evaluation will ultimately make it through the rigorous process of research, development, clinical testing and regulatory review to finally be approved as a medicine or vaccine.

Our R&D role continues well after a new medicine or vaccine is approved, where we conduct ongoing monitoring and evaluate the safety, effectiveness and value of our products.

For more information about the drug discovery and development process, visit