Patients' experiences of clinical trial participation involving a product remotely assessing study drug adherence

The participation of patients in clinical trials is crucial for the development of healthcare. There are several challenges in the recruitment of trial participants with acute medical conditions. The registry-based randomized DAPA-MI clinical trial recruited patients during hospitalization for myocardial infarction and provided study drugs in bottles with smart caps that used wireless technology to transmit monitoring data. This interview study aimed to investigate patients' experience of participation in a clinical trial and their attitude to the new bottle cap technology.

A subset of patients participating in the DAPA-MI trial were recruited from four hospitals in Sweden. Semi-structured interviews were conducted and analysed using manifest content analysis.

Video interviews were performed including 21 patients (four women and 17 men). The median age was 59 years (range 44-80). Four categories of patients' experiences were identified. A willingness to contribute consisted of patients' positive attitudes to participation and to be a part of development and research. The perception of information emphasized the value of the oral information as well as the importance of time for reflection. Be in a vulnerable condition highlighted the impaired ability to perceive and remember in the acute medical condition. Adaptation to a new technology described the overall positive experiences of the smart bottle cap to evaluate adherence.

Patients' experiences of trial participation were in general positive but some challenges in the acute setting of a myocardial infarction were revealed. The smart bottle cap was well accepted, despite some handling difficulties.