Please assess the completion status of the following clinical trial:

Trial Title: Brain Mechanisms of Reducing Polysubstance Use Following a Novel Body-mind Intervention

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

Eligibility Criteria:
Inclusion Criteria:~* (1) at least 18 years old;~* (2) free of any psychiatric diagnoses or medication (besides a substance use disorder to alcohol, tobacco, or cannabis);~* (3) in the past month, at least 4 episode of heavy episodic drinking; at least 3 occasion of cannabis use; and daily cigarette use for at least the past month;~* (4) normal or corrected-to-normal vision;~* (5) written informed consent;~* (6) no previous meditation or neurofeedback (NF) experiences.~Exclusion Criteria:~* (1) any psychiatric diagnoses other than a substance use disorder;~* (2) medical disorder(s) that may affect the central nervous system; medications that affect the central and autonomic nervous system; or a positive pregnancy test result (females);~* (3) excluding cannabis, evidence of recent (past month) illicit drug use.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 23 Years
- Healthy Volunteers: f

Study Arms:
- Integrative Body Mind Training (IBMT) (Type: EXPERIMENTAL): mindfulness
- Relaxation Training (RT) (Type: ACTIVE_COMPARATOR): relaxation

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