PI-targeted PNE+MI Compared to BIOMEDICAL Education in BCS

Breast cancer is the most frequently diagnosed cancer in women worldwide. An important portion of the breast cancer survivors will face chronic pain complaints. These pain complaints do not only impact the patient's quality of life but also prevents resumption of activities, leading to huge economic costs. 30% of all breast cancer survivors with pain present with perceived injustice which has been conceptualized as a multidimensional appraisal process characterized by a tendency to interpret one's losses as severe and irreparable, to attribute blame to others for one's suffering and to experience a sense of unfairness. Perceived injustice is also associated with increased opioid prescription and use, urging the need for targeted interventions to diminish perceived injustice. Despite the fact that specific treatment plans for perceived injustice are not yet proven, pain neuroscience education (PNE) is proven to reassure and encourage towards activity. In order to obtain the targeted behavioural change, motivational interviewing (MI) is used as the communication process throughout PNE. A multi-centre, parallel, two-arm, investigator-blinded study with 4-weeks intervention and two years follow-up will be conducted in 156 BCS with PI and pain. These will be randomly assigned to the intervention or usual care group. The groups will receive 1 online session, an information leaflet and 3 live sessions of education spread over 4 weeks. Pain neuroscience education in combination with motivational interviewing will be given in the experimental group and biomedically-focused education to the control group. The primary scientific objective of the study is to examine whether perceived injustice-targeted PNE is superior to biomedically-focused pain education in reducing pain after 12 months in breast cancer survivors with perceived injustice and pain. The secondary objectives of the study are to examine whether perceived injustice-targeted PNE, compared to biomedically-focuse