Please assess the completion status of the following clinical trial:

Trial Title: Pharmacogenetics to Predict Drug Interactions in Kidney Transplant Recipients

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Kidney transplant recipient~* \> 6 months posttransplant~* Serum creatinine \< 1.6 mg/dL~* Currently taking a stable dose of tacrolims~Exclusion Criteria:~* On medications known to interact with tacrolimus or ketoconazole~* Multi-organ transplant recipient~* Serum creatinine \>1.5 mg/dL

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Tacrolimus + Ketoconazole, Then Tacrolimus alone (Type: EXPERIMENTAL): Participants first received tacrolimus in combination with with ketoconazole. After a 1-2 week washout they received tacrolimus alone.
- Tacrolimus alone, Then Tacrolimus + Ketoconazole (Type: EXPERIMENTAL): The participants first received tacrolimus alone. After a 1-2 week washout period they received tacrolimus in combination with ketoconazole.

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