Two Regimens of Combination Chemotherapy in Treating Younger Patients With Newly Diagnosed Localized Ewing Sarcoma Family of Tumors
Two Regimens of Combination Chemotherapy in Treating Younger Patients With Newly Diagnosed Localized Ewing Sarcoma Family of Tumors
This clinical trial is studying the side effects of combination chemotherapy and to see how
 well they work in treating patients with newly diagnosed localized Ewing sarcoma family of
 tumors. Drugs used in chemotherapy 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) and giving the drugs in different ways may kill more tumor cells.
PRIMARY OBJECTIVES:

 I. To assess the feasibility and safety of adding interval-compressed vincristine, topotecan
 hydrochloride, and cyclophosphamide to a treatment protocol utilizing interval compression of
 vincristine, doxorubicin hydrochloride, cyclophosphamide, ifosfamide, and etoposide in
 patients with localized Ewing sarcoma family of tumors.

 SECONDARY OBJECTIVES:

 I. To estimate the event-free survival in patients treated with this regimen.

 OUTLINE: This is a multicenter study.

 INDUCTION THERAPY (WEEKS 1-12): Patients receive vincristine IV on day 1 in weeks 1, 2, 5, 6,
 9, 10, 11, and 12; topotecan hydrochloride IV over 30 minutes on days 1-5 in weeks 1 and 9;
 cyclophosphamide IV over 1 hour on days 1-5 in weeks 1 and 9 and on day 1 in weeks 5 and 11;
 ifosfamide IV over 1 hour on days 1-5 in weeks 3 and 7; etoposide IV over 1 hour on days 1-5
 in weeks 3 and 7; and doxorubicin hydrochloride IV over 15 minutes on days 1 and 2 in weeks 5
 and 11. Patients also receive filgrastim (G-CSF) subcutaneously (SC) beginning 24-36 hours
 after the last dose of chemotherapy and continuing for at least 7 days or until blood counts
 recover, whichever comes last. Filgrastim is discontinued at least 24 hours prior to the next
 course of chemotherapy.

 LOCAL CONTROL: Patients who respond to induction therapy may undergo surgery alone if the
 lesion can be resected with negative margins and with a reasonable functional result
 beginning in week 13. Following surgery, patients with unresectable lesions or inadequate
 margins may receive radiotherapy during week 15. Patients with bulky lesions in surgically
 difficult sites such as the spine, skull, and periacetabular pelvis; poor response to
 induction chemotherapy; or those in whom surgery would result in unacceptable functional
 results may receive radiotherapy alone in weeks 13-19. Patients with bulky lesions in
 difficult sites and who do not have a good clinical and radiographic response to induction
 therapy may receive radiotherapy to the primary site during weeks 13-19 followed by surgery
 of the involved site during week 25 after recovery from course 11 of chemotherapy. Patients
 with microscopic residual disease after planned pre-operative radiotherapy will receive
 additional radiotherapy.

 CONTINUATION THERAPY (WEEKS 15-36): Patients receive vincristine IV on day 1 in weeks 15, 16,
 21-24, 27-30, 33, and 34; topotecan hydrochloride IV over 30 minutes on days 1-5 in weeks 15,
 21, and 29; cyclophosphamide IV over 1 hour on days 1-5 in weeks 15, 21 and 29 and on day 1
 in weeks 23, 27, and 33; ifosfamide IV over 1 hour on days 1-5 in weeks 17, 19, 25, 31, and
 35; etoposide IV over 1 hour on days 1-5 in weeks 17, 19, 25, 31, and 35; and doxorubicin
 hydrochloride IV over 15 minutes on days 1 and 2 of weeks 23, 27, and 33. Patients also
 receive G-CSF SC as in induction therapy.

 After completion of study treatment, patients are followed for 10 years.
Inclusion Criteria:

 -  Diagnosis of extracranial Ewing sarcoma or peripheral primitive neuroectodermal tumor
 of bone or soft tissue:

 -  Newly diagnosed disease

 -  Disease confirmed by biopsy only with no attempt at complete or partial resection

 -  Unplanned excision allowed provided adequate imaging was obtained prior to
 surgery and incompletely resected disease is controlled by local therapy

 -  No esthesioneuroblastoma

 -  Localized disease, including any of the following sites:

 -  Chest wall tumors with ipsilateral pleural effusions, ipsilateral positive
 pleural fluid cytology, or ipsilateral pleural based secondary tumor nodules;

 -  No contralateral pleural effusions or pleural nodules

 -  Regional lymph nodes that are clinically suspicious or confirmed by biopsy

 -  No distant lymph node metastases

 -  Extra-dural tumors arising in the bony skull

 -  No tumors arising in the intra-dural soft tissue or the intra-dural region
 of the spine

 -  No evidence of metastatic disease, defined as any of the following:

 -  Lesions that are discontinuous from the primary tumor

 -  Lesions that are not regional lymph nodes

 -  Lesions that do not share a body cavity with the primary tumor

 -  No evidence by CT scan of metastatic lung disease, defined as any of the following:

 -  One pulmonary nodule > 1 cm in diameter or more than one nodule > 0.5 cm diameter

 -  Pulmonary nodules that are resected and are not found to be metastatic Ewing
 sarcoma are allowed

 -  Biopsy proven solitary nodules measuring 0.5 to 1.0 cm or multiple nodules
 measuring 0.3 to 0.5 cm

 -  Solitary nodules measuring < 0.5 cm or multiple nodules measuring < 0.3 cm
 are allowed unless biopsy proven to be metastatic (biopsy is not required)

 -  Karnofsky performance status (PS) 0-2 (>= 16 years old) OR Lansky PS 0-2 (< 16 years
 old)

 -  Creatinine clearance or radioisotope glomerular filtration rate ≥ 70 mL/min OR serum
 creatinine based on age/gender as follows:

 -  1 month to < 6 months old (males and females 0.4 mg/dL)

 -  6 months to < 1 year old (males and females 0.5 mg/dL)

 -  1 to < 2 years old (males and females 0.6 mg/dL)

 -  2 to < 6 years old (males and females 0.8 mg/dL)

 -  6 to < 10 years old (males and females 1.0 mg/dL)

 -  10 to < 13 years old (males and females 1.2 mg/dL)

 -  13 to < 16 years old (males 1.5 mg/dL and females 1.4 mg/dL)

 -  >= 16 years old (males 1.7 mg/dL and females 1.4 mg/dL)

 -  AST or ALT < 2.5 times ULN for age

 -  Total bilirubin =< 1.5 times upper limit of normal (ULN) for age

 -  Shortening fraction of >= 27% by ECHO or ejection fraction of >= 50% by radionuclide
 angiogram (MUGA)

 -  Not pregnant or nursing

 -  Negative pregnancy test

 -  Fertile patients must use effective contraception

 -  No prior chemotherapy or radiotherapy

 -  No concurrent pegfilgrastim (Neulasta) or sargramostim (GM-CSF)

 -  No other concurrent cancer chemotherapy or immunomodulating agents, including
 steroids, unless used as an antiemetic