Please assess the completion status of the following clinical trial:

Trial Title: Randomized Study Comparing the Efficacy and Safety of Varenicline Tartrate to Placebo in Smoking Cessation When Subjects Are Allowed to Set Their Own Quit Date

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Men and women~* 18 to 75 yrs old~* Motivated to stop smoking~* Smoke at least 10 cigarettes/day~Exclusion Criteria:~* Active psychiatric disease~* Severe or unstable cardiovascular or pulmonary disease~* Current or recent treatment to stop smoking~* Previous use of varenicline

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- placebo (Type: PLACEBO_COMPARATOR): None
- varenicline (Type: EXPERIMENTAL): None

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