Please assess the completion status of the following clinical trial:

Trial Title: Trial Evaluating Carbon Ion Radiotherapy With Concurrent Chemotherapy for Locally Recurrent Nasopharyngeal Carcinoma

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE1/PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* -Pathologically confirmed NPC~* Completed a definitive course of intensity-modulated photon radiation therapy (IMXT) to a total dose of ≥ 66 Gy~* Recurrence diagnosed more than 12 months after the initial course of IMXT~* Age ≥ 18 and \< 70 years of age~* Karnofsky Performance Score ≥70~* Willing to accept adequate contraception for women with childbearing potential~* Ability to understand character and individual consequences of the clinical trial~* Willing to sign the written informed consent; Informed consent must be signed before the enrollment in the trial~Exclusion Criteria:~* Local recurrence of NPC diagnosed within 12 months from the completion of previous course of radiation therapy~* Presence of distant metastasis~* Technology used other than IMXT (including brachytherapy following IMXT) for the treatment of initial diagnosis of NPC~* Pregnant or lactating women~* Patients who have not yet recovered from acute toxicities of prior therapies~* A diagnosis of malignancy other than CIS of the cervix, BCC and SCC of the skin within the past 5 years~* Refusal of the patient to participate into the study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- CIRT with concurrent chemo arm (Type: EXPERIMENTAL): Treated with carcon ion radiotherapy along with concurrent chemotherapy (Cisplatin 40mg/m\^2, weekly).

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