Please assess the completion status of the following clinical trial:

Trial Title: Treatment of Severe Mucositis Pain With Oral Ketamine Mouthwash

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Patient has oral mucositis pain that is grade 3 or 4 according to the World Health Organization (WHO) Oral Mucositis Scale~* Patient has received at least one prior chemotherapy or radiation treatment~* Patient is at least 18 years old~* Patient or their legally authorized representative understands and voluntarily signs the written informed consent prior to any study-specific procedures. A copy of the signed informed consent form will be retained by the treating institution.

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

Study Arms:
- Ketamine (Type: EXPERIMENTAL): Ketamine oral mouthwash 20mg/5ml swish and spit four times daily

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