Please assess the completion status of the following clinical trial:

Trial Title: Abdominoperineal Extra-Elevators Rectal Resection for Cancer: Prone Position vs. Supine Position

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

Eligibility Criteria:
Inclusion Criteria:~* Patients with primary low lying rectal cancer involving or threatening anal sphincter complex as seen in MRI~Exclusion Criteria:~* American Society of Anaesthesiologists classification of Physical Health (ASA) IV patients~* Locally palliative purpose of the operation~* Age \< 18 years~* Preoperative indication for pelvic exenteration~* Pregnancy~* Lack of patients consent

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

Study Arms:
- Supine position (Type: ACTIVE_COMPARATOR): Abdominoperineal resection - perineal time- in supine position
- Prone position (Type: EXPERIMENTAL): Abdominoperineal resection - perineal time- in prone position

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