Please assess the completion status of the following clinical trial:

Trial Title: Clinical Trial of Postmastectomy Radiotherapy in Breast Cancer With One to Three Positive Nodes

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Ipsilateral histologically confirmed invasive breast cancer~* Undergone total mastectomy and axillary dissection~* T1-2 and one to three axillary lymph nodes positive~* A minimum of 10 axillary nodes dissected~* Fit for chemotherapy(if indicated),endocrine therapy(if indicated)and postoperative irradiation~* Written,informed consent~Exclusion Criteria:~* Patients who undergone previous irradiation to the ipsilateral chest wall and supraclavicular region~* Previous or concurrent malignant other than non-melanomatous skin cancer~* Unable or unwilling to give informed consent

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- radiotherapy (Type: EXPERIMENTAL): radiotherapy of 50Gy/25/f/5w to the ipsilateral chest wall and supraclavicular region
- no radiotherapy (Type: ACTIVE_COMPARATOR): no radiotherapy

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