Please assess the completion status of the following clinical trial:

Trial Title: Nitrate Patch Use as Treatment of Knee AVN

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

Eligibility Criteria:
Inclusion Criteria:~* adult patients (18-80 y.o)~* diagnosis of AVN according to MRI~Exclusion Criteria:~* Terminal illness~* Cognitive impairment / any condition disturbing informed concent.~* Nitrate intolerance~* Patients using Cyclic GMP inhibitiors

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

Study Arms:
- study group (Type: EXPERIMENTAL): the patients that will get a nitrate patch
- control group (Type: PLACEBO_COMPARATOR): the patients that will get the placebo patch

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