	According to The Tufts-eClinical Solutions Data Strategies & Transformation Study, conducted in 2019 by eClinical Solutions LLC and the Tufts Center for the Study of Drug Development, the increasing volume and diversity of external data sources is contributing to longer database lock cycle times. The study indicates that industry leaders are adopting definitive data strategies along with modern technologies to increase control over the research process. 

Tufts CSDD Study Reveals Increased External Data Sources Contributing to Delays in Trial Completion