Please assess the completion status of the following clinical trial:

Trial Title: Extended (6-Week) Varenicline Preloading: Does it Facilitate Smoking Reduction and Cessation?

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 or women aged ≥18 years~* Currently smoking 10 cigarettes per day or more~* Having smoked 5 py or more~* Presenting a CO level in expired air ≥ 10 ppm~* Personally motivated to reduce or stop smoking and indicating a willingness to follow through with protocol requirements~* Willing to sign a statement of informed consent~Exclusion Criteria:~* Myocardial infarction within the last 3 months~* Unstable angina~* Severe cardiac arrhythmia~* Pregnancy or breast feeding~* Use of any form of smokeless tobacco or nicotine substitution~* Having followed any smoking cessation programme during the last 3 months~* Alcohol or other drug addiction~* Use of any form of smokeless tobacco or nicotine substitution~* Participation in any clinical trial within the past 3 months~* Women in childbearing age not willing to use contraception until week 12 after QD

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- group A (Type: EXPERIMENTAL): Subjects in Group A will receive varenicline for six weeks .During this phase, subjects will be asked to reduce cigarette smoking by 50 percent. At week 6 all participants will be instructed to stop smoking before receiving 12 weeks of varenicline treatment
- group B (Type: ACTIVE_COMPARATOR): group B will receive placebo for 5 weeks and varenicline for 1 week. During this phase, subjects will be asked to reduce cigarette smoking by 50 percent. At week 6 all participants will be instructed to stop smoking before receiving 12 weeks of varenicline treatment

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