Please assess the completion status of the following clinical trial:

Trial Title: Transoral Robotic Surgery in Treating Patients With Benign or Stage I-IV Head and Neck Cancer

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Patients clinical, radiologic or pathologic evidence of a benign or malignant tumor in the oral cavity, oropharynx, nasopharynx, hypopharynx, larynx, retropharynx or parapharyngeal space~* Surgical access is amenable to treatment with conventional transoral surgical procedures~* ASA (American Society of Anesthesiologists) performance status (PS) of 1-4 or ECOG (Eastern Cooperative Oncology Group) PS 0-3, thereby including a population that stands to gain the most from a minimally invasive surgical approach~* Patients should have no serious acute infection~* Patients must sign a study-specific informed consent form~Exclusion Criteria:~* Evidence of distant metastases (below the clavicle) by clinical or radiographic measures~* ASA score \> 4; ECOG PS score \> 3~* Pregnancy (during first or 3rd trimester - due to risks of anesthesia)~* The presence of medical conditions which contraindicate general anesthesia~* Unexplained fever or untreated, active infection~* Inability to obtain exposure to allow performance of the planned transoral surgical procedure~* Proposed surgical site with history of prior treatment: radiation~* Tumor adherent to carotid artery or jugular vein~* Fixation to pre-vertebral tumor~* Mandibular invasion

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

Study Arms:
- Arm I (Type: EXPERIMENTAL): Patients undergo transoral robotic microsurgery.

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