Collecting and Storing Biological Samples From Patients With Ewing Sarcoma
A COG Study for Collecting and Banking Ewing Sarcoma Specimens
This research study is collecting and storing samples of tumor tissue, bone marrow, and
blood from patients with Ewing sarcoma. Collecting and storing samples of tumor tissue, bone
marrow, and blood from patients with cancer to test in the laboratory may help the study of
cancer in the future.
I. Collect biological specimens, including associated demographic and clinical data, from
patients with Ewing sarcoma.
II. Provide a repository for long-term storage of Ewing sarcoma-related biological
III. Make collected specimens available to qualified researchers to understand the biology
of Ewing sarcoma and correlate these results with demographic and clinical data.
OUTLINE: This is a multicenter study.
Patients undergo collection of tumor specimens, bone marrow, and peripheral blood at
diagnosis. Associated demographic and clinical data are collected and archived. Patients who
are not enrolled on a therapeutic clinical trial are followed annually.
- Diagnosis of Ewing sarcoma, including peripheral primitive neuroectodermal tumor and
- Newly diagnosed or recurrent disease