Please assess the completion status of the following clinical trial:

Trial Title: Change in Exercise Capacity as Measured by Peak Oxygen Uptake After CTO PCI

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Patients who present for percutaneous intervention of chronic total occlusion who are able and willing to perform treadmill cardiopulmonary stress testing before and after the intervention~Exclusion Criteria:~* Patients who present for percutaneous intervention of chronic total occlusion who are unable or unwilling to perform treadmill cardiopulmonary stress testing before and after the intervention

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 90 Years
- Healthy Volunteers: t

Study Arms:
- Asymptomatic (Type: None): Patients with known chronic total occlusion who are undergoing percutaneous coronary intervention wtih balloon angioplasty and coronary stent placement who are currently asymptomatic (without any chest pain or anginal equivalent) but have decreased exercise capacity or are easily fatigued. Patients will also be on dual antiplatelet therapy with aspirin and a second agent such as clopidogrel.
- Symptomatic (Type: None): Patients with known chronic total occlusion who are undergoing percutaneous coronary intervention with balloon angioplasty and coronary stent placement who are currently symptomatic with chest pain or anginal equivalent.. Patients will also be on dual antiplatelet therapy with aspirin and a second agent such as clopidogrel.

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