Please assess the completion status of the following clinical trial:

Trial Title: Young Adult Congenital Heart Disease Physical Activity Lifestyle Study (YACHD-PALS)

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

Eligibility Criteria:
Inclusion Criteria:~1. Between the ages of 18-25 (if 18, must no longer be in high school and no longer living at home)~2. Are diagnosed with moderate or complex structural congenital heart disease~3. Live within 120 miles of Nationwide Children's Hospital~Exclusion Criteria:~1. Do no speak or write proficiently in English~2. Have cognitive impairments that would interfere with the completion of study procedures~3. Are diagnosed with a genetic syndrome (e.g., Downs, Marfans)~4. Have been engaged in a formal exercise program within the past 6 months~5. Underwent open-heart surgery or have had a transcatheter valve replacement in the last 3 months~6. Are otherwise prohibited by their cardiologist to engage in at least moderate levels of physical activity~7. Are unable to complete a treadmill-based exercise stress test~8. Are currently pregnant~9. Have contraindications for exercise based on an exercise stress test (e.g., exercise-induced arrhythmias or evidence of cardiac ischemia)~10. \>150 min/weekday of moderate-to-vigorous physical activity per the accelerometer~11. Do not have access or a device for videoconferencing with the coach

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 25 Years
- Healthy Volunteers: f

Study Arms:
- Fitbit Only (Type: ACTIVE_COMPARATOR): In the Fitbit Only arm, participants will receive their exercise prescription, as devised from their baseline exercise stress test results, and a Fitbit. They will undergo a 9 week (interim) and a 22 week assessment (follow-up).
- Fitbit + Coaching Sessions (Type: EXPERIMENTAL): In the Fitbit + Coaching Sessions arm, participants will receive their exercise prescription, as devised from their baseline exercise stress test results, a Fitbit, and will have 8 sessions with a coach (interventionist) over the course of 20 weeks. They will undergo a 9 week (interim) and a 22 week assessment (follow-up).

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