Please assess the completion status of the following clinical trial:

Trial Title: Endoscopic Injection of Mitomycin C for the Treatment of Pharyngoesophageal Stenosis

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 with dysphagia following head and neck cancer treatment~* Patients without endoscopic or radiological evidence suggestive of tumor recurrence~* Patients refractory to endoscopic treatment~Exclusion Criteria:~* Endoscopic or radiological signs suggestive of tumor recurrence

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

Study Arms:
- Endoscopic injection of Mitomycin C (Type: OTHER): Endoscopy injection of Mitomycin C will be perform to the treatment of pharyngoesophageal stenosis refractory to endoscopic treatment with dilatation in patients with head and neck cancer

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