ХXІV Міжнародна науково-практична інтернет-конференція

In this article the most common problems and the efficacy of the usage of electric data capture and software systems in clinical trials are described. The main problems appear while collecting the data from primary sources and following data analysis. However the efficacy of software systems in clinical trials is gained because transcription of data from the rough format into the electronic format requires one more step of data verification, easy access to audit the data and increases investigators responsibility of entered data. All the data from specific phase were checked and verified with primary sources, the most percentage of errors occurred in the field, which were filled by people manually. According to the results of data verification several suggestions were made. Key words: Electronic Data Capture systems, Case Report Forms, Clinical Data Management