Capobianco, Reeves, Morrison & Wells (2017) coducted a feasibility trial comparing group metacognitive therapy (MCT)  versus mindfulness based stress reduction (MBSR) in a transdiagnostic group. Patients were randomly assigned to either eight weeks of group MCT or eight weeks of MBSR.Both treatments were found to be acceptable and feasible however preliminary analyses indicate that MCT may be more effective than MBSR in a transdiagnostic sample, however a larger, definitive trial is required.