EDC is often cited as having its origins in
remote data entry (RDE) software, which surfaced in the life sciences market in the late 1980s and early 1990s. However, its origins might be tracked to a contract research organization known then as Institute for Biological Research and Development (IBRD). Drs. Nichol, Pickering, and Bollert offered "a controlled system for post-marketing surveillance (PMS) of newly approved (NDA) pharmaceutical products," with surveillance data being "entered into an electronic data base on site" at least as early as 1980. Clinical research data—patient data collected during the investigation of a new drug or medical device is collected by physicians, nurses, and research study coordinators in medical settings (offices, hospitals, universities) throughout the world. Historically, this information was collected on paper forms which were then sent to the research sponsor (e.g., a pharmaceutical company) for data entry into a database and subsequent statistical analysis environment. However, this process had a number of shortcomings: • data are copied multiple times, which produces errors • errors that are generated are not caught until weeks later • visibility into the medical status of patients by sponsors is delayed To address these and other concerns, RDE systems were invented so that physicians, nurses, and study coordinators could enter the data directly at the medical setting. By moving data entry out of the sponsor site and into the clinic or other facility, a number of benefits could be derived: • data checks could be implemented during data entry (real-time), preventing some errors altogether and immediately prompting for resolution of other errors • data could be transmitted nightly to sponsors, thereby improving the sponsor's ability to monitor the progress and status of the research study and its patients These early RDE systems used "
thick client" software—software installed locally on a laptop computer's hardware—to collect the patient data. The system could then use a modem connection over an analog phone line to periodically transmit the data back to the sponsor, and to collect questions from the sponsor that the medical staff would need to answer. Though effective, RDE brought with it several shortcomings as well. The most significant shortcoming was that hardware (e.g., a laptop computer) needed to be deployed, installed, and supported at every investigational (medical) site. This became expensive for sponsors and complicated for medical staff. Usability and space constraints led to a lot of dissatisfaction among medical practitioners. With the rise of the internet in the mid-1990s, the obvious solution to some of these issues was the adoption of web-based software that could be accessed using existing computers at the investigational sites. EDC represents this new class of software. ==Current landscape==