S9415 Chemotherapy in Patients With Stage II or III Colon Cancer That Has Been Surgically Removed

• Status: Completed
• Trial end date: 2005-03-01
• Target enrollment: 0
• Participant gender: All

Summary

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug and giving drugs in different ways may kill more cancer cells.

PURPOSE: Randomized phase III trial to compare the effectiveness of chemotherapy given in different ways in treating patients with surgically removed stage II or stage III colon cancer at high risk of recurrence.

• Phase: Phase 3
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Southwest Oncology Group
• Collaborators: Cancer and Leukemia Group B; Eastern Cooperative Oncology Group; National Cancer Institute (NCI); North Central Cancer Treatment Group
• Treatments: Calcium; Fluorouracil; Leucovorin; Levamisole; Levoleucovorin

Criteria

DISEASE CHARACTERISTICS: Histologically proven resectable stage II or III adenocarcinoma of the colon Caudal margin of the primary tumor must lie above the peritoneal reflection Must have pathologic confirmation of either N1-3 (stage III), or if N0, must have T3-T4 (stage II) with bowel obstruction or perforation Obstruction documented as: At least 75% colon or small bowel obstruction on x-ray and/or endoscopy Significant bowel dilatation surgically documented Significant obstruction described in the pathology report Perforation documented by gross operative/pathologic evidence of a colon wall defect with associated abscess or peritonitis Complete en bloc resection by laparotomy required No laparoscopic colectomy without prior surgery on protocol SWOG-9411 No gross or microscopic residual disease No distant peritoneal metastases (stage IV) even if grossly resectable No requirement to open the pelvic peritoneum to define the extent of disease No extrapelvic nodal metastasis unless resected en bloc with the primary tumor No distant metastases No other diagnosis of stage II-III colon cancer within the past 5 years May have undergone complete surgical resection at least 5 years prior to study Completely resected prior or synchronous stage 0-I colon cancer eligible

PATIENT CHARACTERISTICS: Age: Adult Performance status: SWOG 0-2 Hematopoietic: WBC (white blood cell) at least 3,500/mm3 Platelet count at least within the lower limit of normal Hepatic: Bilirubin no greater than 2 times upper limit of normal (ULN) AST (angiotensin sensitivity test) no greater than 2 times ULN Alkaline phosphatase no greater than 2 times ULN Renal: Creatinine no greater than 2 times ULN Other: No organic brain syndrome, Alzheimer's disease, or other altered mental status No second malignancy within 5 years except: Adequately treated nonmelanomatous skin cancer Adequately treated carcinoma in situ of the cervix Not pregnant or nursing Negative pregnancy test Effective contraception required of fertile patients

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No prior fluorouracil or other chemotherapy for cancer No concurrent chemotherapy Endocrine therapy: Not specified Radiotherapy: No prior or concurrent radiotherapy for cancer Surgery: Complete en bloc resection required (see Disease Characteristics)