Please assess the completion status of the following clinical trial:

Trial Title: vNOTES Salpingo-oophorectomy or Bilateral Salpingectomy Compared With Laparoscopic.

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

Eligibility Criteria:
Inclusion Criteria:~1. Women aged between 18 and 80 years.~2. women who seek for definitive surgical sterilisation.~3. women who planed for Elective bilateral salpingectomy or Salpingo-oophorectomy for a non-malignant indication~Exclusion Criteria:~1. history of rectal surgery.~2. rectovaginal endometriosis~3. suspected malignancy~4. History of pelvic inflammatory disease.~5. active lower genital tract infection.~6. Virgo women~7. pregnancy~8. Failure to provide written informed consent prior to surgery

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

Study Arms:
- Study group: vNOTES (Type: EXPERIMENTAL): Elective bilateral salpingectomy or Salpingo-oophorectomy by vaginal Natural Orifice Transluminal Endoscopic Surgery approach
- Control group: Laparoscopic (Type: OTHER): Elective bilateral salpingectomy or Salpingo-oophorectomy by conventional laparoscopy

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