Please assess the completion status of the following clinical trial:

Trial Title: Sitosterolemia Metabolism

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

Eligibility Criteria:
Inclusion Criteria:~* confirmed diagnosis of homozygous sitosterolemia as established by genotyping and clinical parameters~Exclusion Criteria:~* pregnant~* intellectual disability~* major infectious diseases~* immunodeficiency~* cancer~* renal failure~* diabetes

- Gender: ALL
- Minimum Age: 16 Years
- Maximum Age: 99 Years
- Healthy Volunteers: t

Study Arms:
- Ezetimibe (Type: EXPERIMENTAL): Compare on and off ezetimibe

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