Vinblastine, Celecoxib, and Combination Chemotherapy in Treating Patients With Newly-Diagnosed Metastatic Ewing's Sarcoma Family of Tumors

DISEASE CHARACTERISTICS:

* Newly diagnosed Ewing's sarcoma family of tumors of the bone or soft tissues

  * Paraspinal tumors of extra-dural origin and Askin's tumor of the chest wall are eligible
* Metastatic disease, defined by the following criteria:

  * Lesions are discontinuous from the primary tumor, are not regional lymph nodes, and do not share a body cavity with the primary tumor
  * A single pulmonary or pleural nodule greater than 1 cm OR multiple nodules greater than 0.5 cm are considered evidence of pulmonary or pleural metastases (unless there is another clear medical explanation for these lesions)
  * Contralateral pleural effusions are considered metastatic disease
* No CNS involvement

PATIENT CHARACTERISTICS:

Age

* 50 and under (at diagnosis)

Performance status

* Lansky 50-100% (under 17 years of age)
* Karnofsky 50-100% (age 17 and over)

  * Patients whose performance status is affected by a pathological fracture are allowed provided they are able to undergo treatment

Life expectancy

* Not specified

Hematopoietic

* Not specified

Hepatic

* Bilirubin no greater than 1.5 times upper limit of normal (ULN)
* AST or ALT less than 5 times ULN

Renal

* Creatinine adjusted according to age as follows\*:

  * No greater than 0.4 mg/dL (≤ 5 months)
  * No greater than 0.5 mg/dL (6 months -11 months)
  * No greater than 0.6 mg/dL (1 year-23 months)
  * No greater than 0.8 mg/dL (2 years-5 years)
  * No greater than 1.0 mg/dL (6 years-9 years)
  * No greater than 1.2 mg/dL (10 years-12 years)
  * No greater than 1.4 mg/dL (13 years and over \[female\])
  * No greater than 1.5 mg/dL (13 years to 15 years \[male\])
  * No greater than 1.7 mg/dL (16 years and over \[male\]) OR
* Creatinine clearance or radioisotope glomerular filtration rate at least 70 mL/min\* NOTE: \*Unless these values are related to renal insufficiency secondary to tumor involvement that is expected to improve once the tumor mass is smaller (e.g., pelvic mass causing obstructive hydronephrosis)

Cardiovascular

* Shortening fraction at least 27% by echocardiogram OR
* Ejection fraction at least 50% by MUGA

Other

* Not pregnant or nursing
* Fertile patients must use effective contraception
* Body surface area at least 0.4 m\^2
* No allergy to sulfa
* No aspirin hypersensitivity
* No asthma triad (asthma with nasal polyps, and urticaria)
* No other prior cancer, including nonmelanoma skin cancer

PRIOR CONCURRENT THERAPY:

Biologic therapy

* No prior bone marrow or stem cell transplantation

Chemotherapy

* No prior chemotherapy

Endocrine therapy

* Not specified

Radiotherapy

* No prior radiotherapy

Surgery

* Not specified

Other

* No other concurrent nonsteroidal anti-inflammatory medications, including salicylates
* No concurrent dexrazoxane unless approved by the study investigator