Please assess the completion status of the following clinical trial:

Trial Title: N-acetylcysteine Effects on Tetrahydrocannabinol

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: EARLY_PHASE1
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Exposed to Cannabis at least once in lifetime~Exclusion Criteria:~* Cannabis Naive~* Individuals with a documented allergy to N-acetylcysteine

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 55 Years
- Healthy Volunteers: t

Study Arms:
- Active N-acetylcysteine and Active Delta-9-THC (Type: EXPERIMENTAL): None
- Placebo and Active Delta-9-THC (Type: PLACEBO_COMPARATOR): None
- Active N-acetylcysteine and Placebo (Type: EXPERIMENTAL): None
- Placebo and Placebo (Type: PLACEBO_COMPARATOR): None

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