November 18th 2024
The answer comes down to context of use—and knowing the motives for "missingness."
November 15th 2024
When Should the Audit Trail Begin?
A discussion of the regulatory history behind audit trails and its interpretation as it relates to clinical research data originating or residing in EDC or eCOA systems.
The CDISC Operational Data Model: Ready to Roll?
July 1st 2004Think about how you wish to use ODM across an organization, not just within a single trial. All that needs to happen is for the same identifier to be used to denote two different studies and the data for both appear to come from the same study!
Meeting the Challenges of Internet-based Clinical Trials
June 1st 2004In the mid to late '80s, a tool called remote data entry was available which replaced double key data entry and paper case report forms (CRFs) at the clinical trial study site. When remote data entry (RDE) was used, the drug sponsor would provide a portable computer to the investigational site. The coordinator would collect study-related patient data, and then enter the data directly into the computer via the specially designed user interface of data entry screens. The electronic data would then be monitored. After data cleanup, a floppy disk with the site's data would be sent to the sponsor via an overnight courier service. These tasks would occur periodically during the course of the clinical trial.