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