Please assess the completion status of the following clinical trial:

Trial Title: REBEAT Resynchronisation and Beta-Blocker European Trial

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

Eligibility Criteria:
Inclusion Criteria:~* Symptomatic heart failure and indication for cardiac resynchronization therapy (CRT), Hemodynamic stability with documented intolerance to beta-blocker therapy or treatment with beta-blocking agents at sub-optimal dosages (\<25% of optimal dosage).~Exclusion Criteria:~* chronic atrial fibrillation; indications for permanent antibradycardia pacing; mechanical tricuspid valve; Severe aortic stenosis or other primary valve disease causing cardiomyopathy

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

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