Please assess the completion status of the following clinical trial:

Trial Title: The Effect of Nicorandil on Left Ventricular Myocardial Strain in Patients With Coronary Chronic Total Occlusion

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* age between 18 and 80 years;1 or more CTO vessels (≥2mm in diameter)~Exclusion Criteria:~* successful PCI for all CTO lesions; ST segment elevation myocardial infarction (STEMI) during the past 3 months; planed coronary artery bypass grafting (CABG) within 3 months; valvular heart disease or congenital heart disease; cardiomyopathy; heart failure with NYHA (New York Heart Association) class III or above; persistent atrial fibrillation or complete left bundle branch block; severe liver, kidney, or lung diseases

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

Study Arms:
- nicorandil group (Type: EXPERIMENTAL): None
- control group (Type: NO_INTERVENTION): None

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