Please assess the completion status of the following clinical trial:

Trial Title: Transanal Decompression Tube Versus Stent for Acute Malignant Left-sided Colonic and Rectal Obstruction

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

Eligibility Criteria:
Inclusion Criteria:~1. definite diagnosis of left-side colonic or rectal obstruction;~2. symptomatic colonic obstruction for less than 1 week;~3. colonic obstruction caused by a histologically proven malignant colonic tumor~Exclusion Criteria:~1. suspected benign colonic or rectal obstruction;~2. right-side colonic obstruction;~3. patients with signs of peritonitis;~4. dysfunction of blood coagulation, active bleeding, active infection, and significant cardiac or pulmonary disease;~5. patients who do not want to undergo surgery.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Transanal decompression tube (Type: OTHER): Patients undergo placement of the transanal decompression tube as a bridge to surgery
- Stent (Type: OTHER): Patients undergo placement of the stent as a bridge to surgery

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