Please assess the completion status of the following clinical trial:

Trial Title: Study of PET Scans and Serotonin in Hot Flashes Treatment

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

Eligibility Criteria:
Inclusion Criteria:~* Postmenopausal women~* 7 or more hot flashes per day for at least 3 months~* Must be able to undergo magnetic resonance (MR) and PET imaging~* Must be able to receive either paroxetine or estrogen~Exclusion Criteria:~* No treatment with hormone therapy or other medications that affect estrogen within the past 3 months~* No evidence of a currently active cancer

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

Study Arms:
- Paroxetine (Type: EXPERIMENTAL): Paroxetine controlled-release (2-12.5 mg tablets, orally, every day for 4 weeks)
- Conjugated equine estrogen (Type: EXPERIMENTAL): Conjugated equine estrogen (0.625 mg tablet, orally, every day for 4 weeks)

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