This is a 1-arm pilot trial. Recruitment will take place via a hospital, the Helen Dowling Institute and self-referral. The target is to include 34 couples (i.e. 68 participants). All participating cancer patients and their partners will be allocated to the couple mindfulness-based cognitive behavioral therapy, provided via internet (couple eMBCT), called 'COMPANION' (in Dutch: 'Samen Minder Moe') Assessments include three questionnaires (i.e. before starting the intervention (T0), after completing the intervention (T1), and 1 month after T1 (T2)). The assessments include also weekly diaries during a period of 17-22 weeks. A subsample of patients (n ≈ 5) and partners (n ≈ 5) as well as the therapists providing the couple eMBCT will participate in final focus groups. The primary objectives of COMPANION study 2 are to determine the acceptability of the couple intervention and the potential efficacy for patient fatigue. Secondary objectives are to examine the feasibility of trial procedures and the potential working mechanisms of the couple intervention.
Chronic cancer-related fatigue (CCRF) is a disturbing condition that persists in up to 25% of cancer patients after completion of treatment. While mindfulness-based interventions are effective in relieving CCRF, these typically target the patient alone. Growing evidence suggests that including partners and targeting the dyadic context can increase and broaden the interventions' efficacy. The proposed study is a pilot trial testing the acceptability and potential efficacy of a mindfulness intervention directed at couples.