Clinical Development, Clinical Scientist About Clinical Development, Clinical Scientist Fellowship Clinical development is responsible for the architecture of clinical trial concepts, protocol development, study start up, study execution, data review and cleaning, clinical interpretation of data, publication contributions, and serves as a clinical resource for regulatory filings and queries from authorities and sites. Within clinical development, clinical scientists play a  role on the clinical trial working group (CTWG). They work to help align study goals and strategy within the clinical trial working group, , serve as a resource for investigators on patient eligibility, safety, and protocol questions, and partner cross-functionally with