Can yoga replace pills? new study tests yoga for chronic pain in opioid patients

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Enrolled in MMT or BUP treatment for \> 3 months * Plan to continue treatment for next 6 months * Chronic pain, defined as pain for at least half the days over the previous three months, a mean score of 4 or higher on the Brief Pain Interference Scale (BPI; with reference to chronic pain), and pain severity of 4 or higher on a Visual Analog Scale (0-10) indicating "worst pain in the last week." Pain severity score will also refer to the areas of their body in which they have chronic pain. * Aged \> 18 * Proficiency in English sufficient to engage in informed consent in English, understand classes taught in English, and read short sentences * Available at least one of the times study classes are offered. Exclusion Criteria: * Currently taking yoga classes or practicing yoga at home once per week or more often. * Medical conditions that would make participation in yoga unsafe or not possible, including active malignancy treatment, fracture, recent joint surgery, use of assistive ambulatory devices other than a cane. . (In cases where this is unclear, site PI will make final determination based on available evidence.) * Severe or progressive neurologic deficits. (In cases where this is unclear, site PI will make final determination based on available evidence.) * Other severe disabling chronic medical and/or psychiatric comorbidities deemed by the site PI on a case-by-case basis to prevent safe or adequate participation in the study (e.g., cognitive impairment that prevents a participant from understanding assessments; history of disruptive behavior in medical settings; severe disabling heart failure or lung disease) * Surgery requiring overnight hospitalization planned in the next 3 months * Pregnancy * No access to a reasonably safe, reliable place to engage in personal yoga practice and a private space to participate in online yoga classes