Role of Home-Based Transcutaneous Electrical Acustimulation for Treatment of Pain in Subjects With Chronic Pancreatitis

Pain in patients with CP is debilitating and impairs quality of life. Despite using medical, endoscopic, or surgical treatments, many patients continue experiencing substantial pain and some are prescribed long-term opioids. This clinical trial aims to assess the analgesic effect of a mild electrical stimulator called TEA. TEA consists of a small, wearable device that can be used at-home while doing daily activities. If effective, this could be an alternative non-pharmacological and non-invasive option to manage pain related to CP. In this study, the investigators will conduct a randomized, sham-controlled, 2x2 crossover trial in patients with painful CP. Subjects will be randomized to receive either active TEA first followed by sham TEA, or sham TEA first followed by active TEA. Other than the application point in the skin, active and sham TEA will be identical. The study will examine the effect of TEA on pain severity (primary outcome), pain interference and overall pain experience (secondary outcomes). The study will be conducted over 12 weeks in 5 periods: run-in (1 week), treatment period 1 (4 weeks), washout (2 weeks), treatment period 2 (4 weeks), and close-out visit (1 week). Subjects will complete online questionnaires about pain and health throughout the duration of the study. There will be a total of 3 study visits that will be conducted at the main Ann Arbor Hospital or virtually. All the study tasks can be completed remotely. The study will recruit patients from a single clinical center and from self-referral from patients with CP in the US. The proposed study will advance our understanding on the role of TEA for non-opioid pain management of CP.