Please assess the completion status of the following clinical trial:

Trial Title: Chronic Low Back Pain and Meditation

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: TRIPLE
- Phase: EARLY_PHASE1
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Participants must have a medical evaluation that demonstrates chronic low back pain that is evoked by lifting the legs. Existing medical records, per physician discretion and low back examinations will confirm diagnosis~* Participants must be between 18 and 65 years of age~* Participants must rate their daily chronic pain intensity at a 3 or higher on 0-10 visual analog scale~* Participants must have experienced their chronic low back pain for at least 3 months~* Participants must have no prior meditative experience~* Participants must be straight leg raise test positive~Exclusion Criteria:~* Participants must not be participating in any new (within 2 weeks prior or anytime after enrollment) pain management procedures during the study period~* Participants must not be taking opioids~* Participants must not be pregnant or nursing mothers~* Participants must have not had back surgery within the last year before their enrollment into the study~* Participants must have not had any other sensory or motor deficits that preclude participation in this study~* Participants must not have known anomalies of the central nervous system including: stroke, dementia, aneurysm, and a personal history of psychosis~* Participants must not have any known allergies to naloxone or similar drugs~* Participants must not have a history of syncope and/or fear of needles/blood

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Meditation (Type: EXPERIMENTAL): Subjects will participate in four sessions (20 min/session) of mindfulness training. Participants will be taught that perceived sensory events are momentary and fleeting and require no further evaluation.
- meditation (Type: EXPERIMENTAL): Subjects will participate in four sessions (20 min/session) of mindfulness training. Participants will be taught that perceived sensory events are momentary and fleeting and require no further evaluation.

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