Please assess the completion status of the following clinical trial:

Trial Title: The Substrate and Intervention Mechanisms for Persistent Atrial Fibrillation Trial

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

Eligibility Criteria:
Inclusion Criteria:~* History of persistent atrial fibrillation~* Indicated for an AF-ablation procedure~* Agree to participate in the trial~Exclusion Criteria:~* Are unable or unwilling to provide informed consent for the SIMPle AF study~* Patients with cardiac devices like pacemakers, internal cardiac defibrillators and Cardiac Resynchronization Therapy Device (CRT). Patients with acute or chronic renal insufficiency (glomerular filtration rate \<30 ml/min/1.73 m2), or patients in the perioperative liver transplantation period~* Pregnant women~* Patients who are unable to adhere to the follow up protocol~* Patients with contraindication to MRI, including ferromagnetic aneurysm clips, metal in the eye, and implanted ferromagnetic or other MRI-incompatible devices~* Patients in whom the LGE Cardiac MRI does not meet quality standards for fibrosis analysis~* Subjects without daily access to a smart phone or tablet compatible with the mobile-based application and ability to upload ECG tracings for the follow up period~* Patients with a history of allergic reactions to gadolinium-based contrast agents or ingredients and will not be premedicated\*\*~  * Subjects with a history of reaction to contrast may be premedicated according to institutional protocol prior to receiving intravenous contrast agents

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

Study Arms:
- Conventional PVI (Type: ACTIVE_COMPARATOR): Conventional PVI by Radio-frequency Ablation: Wide area circumferential pulmonary vein isolation (PVI) only (current standard of care) using radio-frequency ablation catheters.
- PVI + Scar-based ablation (Type: EXPERIMENTAL): Scar-Based Radio-frequency Ablation: Pulmonary vein isolation followed by targeting, using radio-frequency ablation, of dense LGE sites on MRI, which are confirmed on bipolar mapping to have voltage \<0.3 mV.
- PVI + Modeling-predicted rotors ablation (Type: EXPERIMENTAL): Rotor Anchors Radio-frequency Ablation: Pulmonary vein isolation followed by radio-frequency ablation of rotor anchors predicted by modeling.

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