Please assess the completion status of the following clinical trial:

Trial Title: Effects of High-intensity Interval Training on Exercise Capacity in Patients With Grown-up Congenital Heart Disease

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

Eligibility Criteria:
Inclusion Criteria:~* Tetralogy of Fallot~* Double outlet right ventricle~* Transposition of the great arteries with atrial or arterial switch~* Treated or untreated pulmonary valvular or pulmonary artery stenosis~* Reduced right ventricular function after correction of atrial septal defect (ASD), atrio-ventricular septal defect (AVSD) or ventricular septal defect (VSD) (≤40%)~* Ebstein anomaly~* Patients with a systemic right ventricle like d-transposition of the great arteries (d-TGA) with previous atrial switch operation or cc-TGA~Exclusion Criteria~* Inability to participate in a 3-month training program in Bern~* New York Heart Association class ≥ III~* Ventricular function ≤30% of either the systemic or the sub-pulmonary ventricle~* Moderate to severe LV outflow tract obstruction (valvular, subvalvular, due to asymmetric septum hypertrophy, or aortic coarctation) with mean gradient \>30 mmHg by echo~* Severe RV outflow tract obstruction with peak gradient ≥60 mmHg by echo~* Moderate to severe pulmonary hypertension with mean pulmonary artery pressure≥40 mmHg~* Resting saturation at ambient air of \<90%~* Pacemaker or Implantable Cardioverter Defibrillator~* Contraindication to perform a CMR (cerebral clips, iron-containing body implants, medical pumps)~* Recent episode of ventricular tachycardia~* Permanent atrial fibrillation~* Unstable angina or recent myocardial infarction (\<12 months)~* Recent cardiac operation \<6 months~* Ascending aortic dilatation \>45 mm in patients with bicuspid aortic valve or \>50 mm in patients without bicuspid aortic valve~* Repaired coarctation with pseudoaneurysm in MR angiography~* No consent~* Any medical condition which would prevent a patient from performing high intensity training (e.g. cardiac thrombus formation, recent valve surgery (\< 1 year), in general orthopedic, peripheral vascular, neurologic or other limitations)~* Inability to perform cardiopulmonary exercise testing~* Pregnancy

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 99 Years
- Healthy Volunteers: f

Study Arms:
- Moderate intensity continuous exercise (Type: ACTIVE_COMPARATOR): Patients perform two weekly supervised MICE session on a cycling ergometer per week plus one self monitored 30-60 min MICE training of choice at home.~MICE is performed on a cycle ergometer at an intensity of 70-75% of peak heart rate for 38 min (including a 5 min warm-up and 3 min cool-down).
- High intensity interval training (Type: EXPERIMENTAL): High-intensity interval training (HIIT) is performed on a cycle ergometer. It consists of a 10 min warm-up followed by 4 min intervals in Zone III (at 90-95% of peak heart rate), with each interval separated by 3 min of active pauses in zone I (at 50-70% of peak heart rate). The total duration of the HIIT training is 38 min.~Additionally patients perform one self monitored 30-60 min MICE training of choice per week at home.

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

Answer: outcome: terminate
termination_type: enrollment issues