5. Conclusions
In conclusion, our study developed and tested the effectiveness of a digital app called PREDHiCT that aimed to improve clinical trial literacy and psychological predictors of clinical trial participation. We conducted focus groups to identify barriers and facilitators to clinical trial participation and developed a mobile application that contained innovative methods to educate, navigate, and increase access to clinical trial information and opportunities. Our decentralized trial involving 98 participants revealed that the PREDHiCT app significantly increased clinical trial literacy and altruism towards clinical trial participation. However, it did not significantly increase the willingness to participate in a clinical trial. These findings suggest that tailored education, navigation, and access to clinical trials, which are unique features of our PREDHiCT app, can enhance altruism and clinical trial literacy.