Please assess the completion status of the following clinical trial:

Trial Title: Physiological Study of Human Cholesterol Metabolism and Excretion

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE1
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Aim II. 100 subjects aged 30-80 with stable medical and/or surgical illnesses.~* Aim III. 30 subjects age 18-80 with LDL cholesterol \<190, fasting triglycerides\<250 and stable medical or surgical illnesses.~Exclusion Criteria:~* Aim II. Subjects taking ezetimibe, bile acid sequestrants or with gastrointestinal or liver disease will be excluded since these may affect whole body cholesterol metabolism.~* Subjects with coronary heart disease or other medical illnesses will not be excluded if medically stable.~* Adults under age 30 and children will be excluded because in our current database there is no relation between carotid intima-media thickness and cardiovascular risk factors in this younger group.~* Aim III. Individuals have risk factors for coronary heart disease that mandate drug treatment according to the National Cholesterol Education Program guidelines will be excluded.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: t

Study Arms:
- Observational Arm (Type: NO_INTERVENTION): Cholesterol metabolic parameters will be measured in 100 subjects in an observational study. Results will be related to circulating biomarkers and carotid intima-media thickness.
- Ezetimibe Interventional Arm (Type: PLACEBO_COMPARATOR): Cholesterol metabolic parameters will be measured before and after ezetimibe or placebo intervention. Changes due to ezetimibe will be determined

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