Trial design
ACT4FCD, FCD
ACT4FCD is a parallel-group, single-blind RCT, designed to assesses the feasibility of delivering a trial of a brief online group ACT and comparing it against the current standard intervention (TAU). Participants are assessed at baseline and again at 8 weeks, 16 weeks and 26 weeks. In addition, the study aims to collect data on health utilisation before and after the intervention and has an embedded qualitative study of lived experience of FCD and the ACT intervention. This study adheres to the Standard Protocol Items Recommendations for Interventional Trials (see 
