Medical records of patients that previously underwent the Alpha DaRT treatment will be reviewed by an authorized staff member.~Evaluation of long-term outcomes of patients previously treated with the Alpha DaRT seeds for management of their malignancy following initial response. These outcomes include:~Safety - assessment of late onset of Alpha DaRT related AE in patients treated with the Alpha DaRT seeds~Efficacy -~assessment of local recurrence rates in patients who achieved initial complete response (CR) following the Alpha DaRT treatment~assessment of duration of response in patients who achieved initial CR following the Alpha DaRT treatment~assessment of survival status in patients treated with the Alpha DaRT seeds
Evaluation of long-term efficacy outcomes of patients previously treated with the Alpha DaRT seeds for management of their malignancy following initial response.