(295) Potential Targets for Pain Management among Patients with Co-Occurring Opioid Use Disorder and Chronic Pain

Abstract

Although chronic pain is highly prevalent among patients undergoing methadone maintenance treatment (MMT), it often goes untreated in this clinical setting, partly because of the absence of evidence-based integrated treatments for co-occurring chronic pain and opioid use disorder (OUD). An important first step to addressing this gap is to examine whether some common targets of psychosocial pain interventions (i.e., pain acceptance and pain catastrophizing) are predictive of core pain outcomes among MMT patients with chronic pain. The present study examined whether pain catastrophizing and pain acceptance uniquely predict pain severity and pain interference, which are IMMPACT-recommended core chronic pain outcome domains, among MMT patients who also have chronic pain. Among 147 MMT patients who completed a battery of self-report measures, 89 participants who met the criteria for chronic pain were included in the final sample. Hierarchical multiple regression was used to test whether pain catastrophizing and pain acceptance have additive prediction of pain severity and pain interference above and beyond covariates including age, sex, race, depressive and anxiety symptoms, stress level, and current methadone dose. Both pain catastrophizing (p