Please assess the completion status of the following clinical trial:

Trial Title: Proton Stereotactic Body Radiation Therapy for Early-Stage Non-Small Cell Lung Cancer

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: EARLY_PHASE1
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Histologically or cytologically confirmed non-small cell lung cancer (need not be newly diagnosed)~* Stage clinical T1 N0 M0 or T2 N0 M0~* NSCLC must be limited to a single lesion~* NSCLC must be peripherally located (\> 2 cm from proximal bronchial tree and \> 1 cm from mediastinal pleura)~* NSCLC must be considered medically inoperable~* Life expectancy greater than 6 months~Exclusion Criteria:~* Pregnant or breastfeeding~* Prior radiation therapy to the lungs or mediastinum~* Prior malignancy in the last 2 years unless treated definitively and disease free or carcinoma in situ or early stage skin cancers that have been definitively treated~* Receiving other study agents or other types of cancer therapy~* Uncontrolled intercurrent illness~* Pacemaker or defibrillator-dependent

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

Study Arms:
- SBRT with proton beam radiation (Type: EXPERIMENTAL): 4 consecutive days for the delivery of 48 Gy (tumors 3 cm or less) or 5 consecutive days for the delivery of 60 Gy (tumors of \> 3 cm)

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