Please assess the completion status of the following clinical trial:

Trial Title: X-Change HF - Exchange of the Existing Pacemaker/ICD in Bradycardia Patients Suffering From Heart Failure

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Implanted dual-chamber pacemaker or ICD system with replacement indication~  * Because of battery end of life~ * Because of upgrade from pacemaker to ICD system~    * predominant sinus rhythm (paroxysmal atrial fibrillation \[AF\] \< 2 hours/day)~   * predominant ventricular stimulation (\>= 80%)~   * NYHA Class II-III~   * LVEF \<= 35%~Exclusion Criteria:~* NYHA Class IV~* Life expectancy of less than one year because of accompanying diseases~* Myocardial infarction less than 3 months old~* Cardiac surgery less than 3 months~  * Bypass~ * Valve surgery~ * Percutaneous transluminal coronary angioplasty (PTCA)~* Thoracotomy, for implant of an epicardial LV electrode~* Medical circumstances that make participation and compliance impossible~* Patients who are not willing or able to give written consent for their study participation~* Participation in another study~* Patients less than 18 years old~* Pregnancy

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

Study Arms:
- BiV Pacing (Type: EXPERIMENTAL): Biventricular pacing for 3 months, subsequently right ventricular pacing for 3 months
- RV Stimulation (Type: ACTIVE_COMPARATOR): Right ventricular pacing for 3 months, subsequently biventricular pacing for 3 months

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