Please assess the completion status of the following clinical trial:

Trial Title: Maintenance Treatment for Abstinent Smokers

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Patients who smoke at least 10 cigarettes daily and have attempted to quit smoking at least once~Exclusion Criteria:~* Seizure History~* Unstable Blood Pressure~* Current major depression~* Current alcohol/drug abuse or dependency~* Lifetime psychotic illness~* Current use of psychotropic drugs~* Unstable medical condition

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 75 Years
- Healthy Volunteers: t

Study Arms:
- Bupropion (Type: ACTIVE_COMPARATOR): Bupropion (brand name Zyban Sustained Release). Participants used bupropion SR 150 mg twice daily during the 16-week maintenance treatment.
- Nicotine gum (Type: ACTIVE_COMPARATOR): Nicotine gum (brand name Nicorette) During the maintenance 16-week maintenance treatment phase, participants assigned to this arm received 2 mg. nicotine gum.
- Bupropion+Nicotine Gum (Type: ACTIVE_COMPARATOR): Combined active treatments: Bupropion (Zyban SR) and nicotine gum (Nicorette). Participants were instructed to use the 150 mg bupropion pill twice daily and the 2 mg. gum as needed during the 16-week maintenance treatment phase.
- Double placebo (Type: PLACEBO_COMPARATOR): Placebo gum + placebo pill. Identical placebo pill was used twice daily and identical placebo gum was used as needed.

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