Please assess the completion status of the following clinical trial:

Trial Title: Adjuvant Radiation Therapy in Treating Patients With Brain Metastases

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

Eligibility Criteria:
DISEASE CHARACTERISTICS:~* Diagnosis of brain metastases from a histologically confirmed primary or metastatic extracranial tumor, meeting 1 of the following criteria:~  * Stable systemic cancer for the last 3 months (achieved by surgery, radiotherapy, chemotherapy, or hormonal therapy), defined as absence of symptomatic or radiological progression~ * Asymptomatic synchronous primary tumor (treatable by surgery, radiotherapy, chemotherapy, or hormonal therapy)~    * No metastases outside the CNS~ * Unknown primary tumor~* Must have one to three brain lesions, confirmed by enhanced MRI prior to radiosurgery or surgery~  * No brain stem metastases~ * No leptomeningeal metastases~ * No brain metastases from small cell lung cancer, lymphoma, leukemia, myeloma, or germ cell tumors~* Patients planning to undergo radiosurgery must meet the following criteria:~  * Largest diameter ≤ 3.5 cm for single metastasis~ * Largest diameter ≤ 2.5 cm for multiple metastases~ * Stereotactic biopsy required if not extracranial tumor (unknown primary tumor) OR extracranial diagnosis made more than 4 years previously~* Prior neurosurgery patients must have undergone complete surgical resection~* No recurrent brain metastases after prior surgery and/or radiosurgery and/or brain radiotherapy~PATIENT CHARACTERISTICS:~Age~* 18 and over~Performance status~* WHO 0-2 (may be assessed under steroid therapy)~Life expectancy~* Not specified~Hematopoietic~* Not specified~Hepatic~* Not specified~Renal~* Not specified~PRIOR CONCURRENT THERAPY:~Biologic therapy~* Not specified~Chemotherapy~* See Disease Characteristics~* No concurrent chemotherapy during whole brain radiotherapy~Endocrine therapy~* See Disease Characteristics~Radiotherapy~* See Disease Characteristics~Surgery~* See Disease Characteristics

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

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