Combination Chemotherapy in Treating Patients with Non-Metastatic Extracranial Ewing Sarcoma


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 10-008248
    NCT ID: NCT01231906
    Sponsor Protocol Number: AEWS1031

About this study

This randomized phase III trial studies combination chemotherapy to see how well it works compared to combination chemotherapy with topotecan hydrochloride in treating patients with non-metastatic extracranial Ewing sarcoma. Drugs used in chemotherapy, such as vincristine sulfate, doxorubicin hydrochloride, cyclophosphamide, ifosfamide, etoposide, and topotecan hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more tumor cells. It is not yet known whether combination chemotherapy is more effective with topotecan hydrochloride in treating Ewing sarcoma.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Patients with newly diagnosed, biopsy confirmed, extracranial, non-metastatic Ewing sarcoma or primitive neuroectodermal tumor (PNET) of bone or soft tissue are eligible for this study; note:
    • For the purpose of this study, chest wall tumors with ipsilateral pleural effusions, ipsilateral positive pleural fluid cytology or ipsilateral pleural based secondary tumor nodules will be considered localized disease
    • Patients with regional node involvement, based on clinical suspicion confirmed by pathologic documentation are considered to be non-metastatic
    • Patients with discontinuous osseous lesions within the same bone are considered to be non-metastatic
    • Tumors arising in the bony skull (extra-dural) are considered to be extracranial
  • Patient eligibility will be based on a diagnosis of Ewing sarcoma or PNET by institutional pathologist
  • No prior chemotherapy or radiation therapy is allowed; patients should only have had a biopsy of the primary tumor without an attempt at complete or partial resection; patients will still be eligible if unplanned excision was attempted or accomplished as long as adequate imaging was obtained prior to surgery
  • Creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 70mL/min/1.73 m^2 or serum creatinine based on age/gender as follows:
    • 1 month to < 6 months: 0.4 mg/dL
    • 6 months to < 1 year: 0.5 mg/dL
    • 1 to < 2 years: 0.6 mg/dL
    • 2 to < 6 years: 0.8 mg/dL
    • 6 to < 10 years: 1 mg/dL
    • 10 to < 13 years: 1.2 mg/dL
    • 13 to < 16 years: 1.5 mg/dL (male), 1.4 mg/dL (female)
    • ≥ 16 years: 1.7 mg/dL (male), 1.4 mg/dL (female)
  • Total bilirubin < 1.5 x upper limit of normal (ULN) for age
  • Serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) or serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) < 2.5 x upper limit of normal (ULN) for age
  • Shortening fraction of ≥ 27% by echocardiogram, or ejection fraction of ≥ 50% by radionuclide angiogram

Exclusion Criteria:

  • Patients must have no evidence of metastatic disease; metastatic disease:
    • Are lesions which are discontinuous from the primary tumor, are not regional lymph nodes and do not share a body cavity with the primary tumor; if there is any doubt whether lesions are metastatic, a biopsy of those lesions should be taken
    • Skeletal lesions in adjacent bones (trans-articular)
    • Contralateral pleural effusion and contralateral pleural nodules
    • Distant lymph node involvement
    • Patients with pulmonary nodules are considered to have metastatic disease if the patient has:
      • Solitary nodule > 0.5 cm or multiple nodules of > 0.3 cm unless biopsied and negative for Ewing's
      • Biopsies of solitary nodule ≤ 0.5 cm or multiple nodules ≤ 0.3 cm are not required but if performed and positive indicate metastatic disease
  • Patients whose tumors arise in the dural and intra-dural soft tissues of the cranium and spine are not eligible
  • Patients with pathologic diagnoses other than Ewing sarcoma will be excluded
  • Patients diagnosed with Ewing Sarcoma as a second malignant neoplasm are not eligible if they have received chemotherapy or radiation for the treatment of their primary malignancy
  • Pregnant women will not be entered on this study; pregnancy tests must be obtained in female patients who are post-menarchal; lactating females may not participate unless they have agreed not to breastfeed their infants; males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method for the duration of the study treatment
  • All patients and/or their parents or legal guardians must sign a written informed consent
  • All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Nadia Laack, M.D.

Closed for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office



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