Please assess the completion status of the following clinical trial:

Trial Title: Effects of Behavioral Interventions on Mechanisms of Pain Regulation and Hedonic Regulation

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. age 21-60 years of age~2. English fluency~3. 20/20 vision with corrective lenses~4. current chronic, non-neuropathic back pain diagnosis determined by physician assessment~5. reporting pain ≥3 on 0-10 scale with opioid medication~6. current use of prescription opioids for ≥3 consecutive months~7. ability to understand study procedures and to comply with them for the entire length of the study~Exclusion Criteria:~1. Mindfulness experience (e.g., MBSR or shamatha/vipassana meditation)~2. psychosis~3. untreated, active suicidality in the past month~4. and severe non-opioid substance use disorder in the past year as assessed with the MINI~5. clinically unstable illness judged to interfere with treatment, and presence of facial/jaw pain~6. pregnancy~7. inability or unwillingness of individual to give written informed consent~8. physical characteristics that preclude neuroimaging or study procedures (e.g., metal implants, etc.

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- Mindfulness-Oriented Recovery Enhancement (Type: EXPERIMENTAL): Participants will attend a Mindfulness-Oriented Recovery Enhancement (MORE) group weekly for eight weeks.
- Support Group (Type: ACTIVE_COMPARATOR): Participants will attend a support group weekly for eight weeks.

Based on this trial design, predict the completion outcome and termination type (if applicable).