Please assess the completion status of the following clinical trial:

Trial Title: The Efficacy of Penile Rehabilitation Using Udenafil After Total Mesorectal Excision of Rectal Cancer

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: SUPPORTIVE_CARE
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Age : 20-65~* Rectal cancer within 15cm from anal verge~* Patients with more than 5 points decreased IIEF-5 after operation~* Patients with sexual activity~Exclusion Criteria:~* Preoperative IIEF-5 : ≤14~* Recent MI, CVA, nitrate medication~* Severe cardiovascular disease, psychiatric disease~* Severe hepatic dysfunction (GOT, GPT ≥100IU/L)~* Renal dysfunction (Cr ≥2mg/dl)

- Gender: MALE
- Minimum Age: 20 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Control (Type: PLACEBO_COMPARATOR): Individuals who take placebo after total mesorectal excision
- Udenafil (Type: EXPERIMENTAL): Individuals who take udenafil after total mesorectal excision

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