Please assess the completion status of the following clinical trial:

Trial Title: Protocol for Women at Increased Risk of Developing Breast Cancer

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

Eligibility Criteria:
Inclusion Criteria:~* evidence of hyperplasia with/without atypia upon random periareolar fine needle aspiration of breast~* on hormone replacement therapy~* postmenopausal~* increased risk of developing breast cancer based on personal or family history~* never have taken aromatase inhibitors or selective estrogen receptor modulators in last six months~* women who have a high risk of breast cancer~* older than 18 years~Exclusion Criteria:~* anticoagulants~* marked breast tenderness~* pregnant or within twelve months of breast feeding/childbirth

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- 1 (Type: EXPERIMENTAL): Oral Letrozole 2.5 mg daily for six months

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