Please assess the completion status of the following clinical trial:

Trial Title: Study of Short Course Radiation Therapy for Elderly Patients With Rectal Cancer

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:~* 70 years or older at time of diagnosis~* No restrictions on gender or ethnicity~* Ability and willingness to make follow up appointments~* Pathologic diagnosis of rectal cancer~* Presentation could be symptomatic or asymptomatic~* T1-T3 primary rectal adenocarcinoma as determined on TRUS, CT, or MRI pelvis~* Peri-rectal node positive allowed~* Inability to tolerate radical surgery, as judged by geriatric oncology or surgeon and tumor board OR patient refusal of surgery~* Inability to receive chemoradiation therapy, defined as concurrent chemotherapy and radiation doses of 45-50.4 Gy, as judged by radiation, medical, or geriatric oncology~* Patients with dementia eligible if Health Care Proxy (HCP) is available and supportive of follow up schedule~Exclusion Criteria:~* Age under 70 years of age~* Ability and desire to receive definitive surgical intervention~* Ability and desire to receive concurrent chemoradiation therapy

- Gender: ALL
- Minimum Age: 70 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Elderly rectal cancer patients (Type: EXPERIMENTAL): None

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