The two main methods currently used for ePRO are computers/Smartphones and telephone systems Computers are most often touch-screen devices, ranging from wearables, hand-held devices and smartphones, through iPads and other Tablet computers. The smaller devices are often used as<unk>  diaries, designed to be used for symptom reporting on a daily basis. Larger devices are generally used in a clinic setting. Computers generally run dedicated ePRO applications - the use of the web for ePRO is not yet widespread. Typically a single question at a time is presented on the screen, with a set of possible response options. The user taps on the appropriate response with finger or stylus, then moves on to the next questions. Telephones normally use an interactive voice response system (IVR). The user calls into a dedicated phone line, and hears a spoken script which details the question, and the possible responses. Each response option is given a number, and the user presses the corresponding number key on the phone keypad to record the choice. IVR systems are more often used for diaries, with the<unk>  phoning in e.g. from home, but they can be used in a clinic setting. There are also a number of custom devices designed specifically for use as ePRO data collection devices.
Electronic patient-reported outcome
Clinical data repository
Public utility model
Clinical trial management system
Demographic surveillance system
Significant event audit
Wait list control group
Analysis of clinical trials