Please assess the completion status of the following clinical trial:

Trial Title: Neoadjuvant Chemotherapy or Chemoradiotherapy in Resectable Oesophageal Carcinoma（NewEC Study）

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: RETROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Patients with histologically documented untreated SCC or adenocarcinoma of the oesophagus or gastro-oesophageal junction.~* Patients clinically staged as stage I-III (T1-3, N0-1 and M0) as assessed by a contrast-enhanced multislice computed tomography (CT) scan, positron emission tomography, or endoscopic ultrasonography.~* Patients had an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.~Exclusion Criteria:~* Patients had received any previous treatment for oesophageal cancer.~* Patients who were unsuitable for surgery because of comorbidities.~* Patients had evidence of distant metastatic disease by history and physical examination.

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

Study Arms:
- Neoadjuvant chemoradiotherapy (Type: None): Patients who had chemoradiotherapy before surgery.
- Neoadjuvant chemotherapy (Type: None): Patients who had chemotherapy before surgery.
- Surgery alone (Type: None): Patients who only had oesophagectomy. Various surgical oesophagectomy methods were used, such as Ivor Lewis, transthoracic, three-hole, transhiatal, and left transthoracic. The appropriate surgical approach for each patient was chosen according to the tumour location, size, and depth.

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