Please assess the completion status of the following clinical trial:

Trial Title: Pre to Postoperative Smoking Cessation

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Smoker who has surgery scheduled 5-10 weeks in advance~Exclusion Criteria:~* being contraindicated for varenicline use~* evidence of psychiatric instability~* being unwilling/unable to adhere to the study schedule~* be unwilling to provide study access to medical records~* being otherwise judged by the study team to be inappropriate for study participation

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

Study Arms:
- Open-label trial (Type: OTHER): All participants will attend approximately 6 study sessions pre-surgery and approximately 6 study sessions post-surgery, during which they will be provided three intervention components aimed at smoking cessation: a medication (varenicline) that has been FDA approved for smoking cessation, contingency management for biological evidence of nonsmoking, and behavioral counseling.

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