Please assess the completion status of the following clinical trial:

Trial Title: PAF-HEFT (Permanent Atrial Fibrillation in Heart Failure Trial)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* LVEF \<35%~* QRS time ≥150ms LBB~* NYHA classification ≥ NYHA III~* permanent (\> 6 months) Atrial Fibrillation~* sinus rhythm (control group)~* Condition after Implantation of a Medtronic CRT device~* written informed consent~Exclusion Criteria:~* exchange of the current CRT device~* mitral incompetence (2. degree)~* no compliance~* participation in another study~* pregnancy~* patients with AV node~* patients after heart transplant or those who are on the transplant list

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

Study Arms:
- AV ablation (Type: EXPERIMENTAL): None
- Rate control (Type: ACTIVE_COMPARATOR): Rate control by drugs
- Sinus rhythm (Type: NO_INTERVENTION): None

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