Eniluracil, Fluorouracil, and Oxaliplatin in Treating Patients With Advanced Colorectal Cancer

A Phase I/II Study of Eniluracil Plus Oral 5-Fluorouracil Combined With Oxaliplatin (FOX-E) in Patients With Previously-Treated Colorectal Cancer

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 may kill more tumor cells.

PURPOSE: Phase I/II trial to study the effectiveness of combining eniluracil, fluorouracil, and oxaliplatin in treating patients who have advanced colorectal cancer that has been treated previously.

Study Overview

• Status: Completed
• Conditions: Colorectal Cancer
• Intervention / Treatment: Drug: fluorouracil; Drug: oxaliplatin; Drug: ethynyluracil

Detailed Description

OBJECTIVES: I. Determine the maximum tolerated dose, dose limiting toxicity, and recommended phase II dose of eniluracil, fluorouracil, and oxaliplatin in patients with previously treated advanced colorectal cancer. II. Determine the response rate in patients treated with this regimen.

OUTLINE: This is a dose escalation study of eniluracil and fluorouracil. Patients receive oral eniluracil and oral fluorouracil twice daily on days 1-21. Patients receive oxaliplatin IV over 2 hours on days 1 and 15. Treatment continues every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients with complete response are treated with 2 more courses and then therapy is stopped. Cohorts of 3-6 patients receive escalating doses of eniluracil and fluorouracil until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose limiting toxicity. The recommended phase II dose (RPTD) is defined as 1 dose level below the MTD. Patients are followed at 1 month.

PROJECTED ACCRUAL: A total of 3-30 patients will be accrued for phase I of the study, and an additional 27-40 patients will be accrued for phase II of the study.

• Study Type: Interventional
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• United States
  • New York
    • New York, New York, United States, 10016
      • Kaplan Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

DISEASE CHARACTERISTICS: Histologically confirmed advanced colorectal cancer No more than 2 prior chemotherapy regimens including fluorouracil and/or irinotecan (relapse within 6 months of adjuvant therapy is considered 1 prior regimen) Measurable disease

PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-1 Life expectancy: At least 6 months Hematopoietic: Absolute neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL SGOT no greater than 5 times upper limit of normal (ULN) Alkaline phosphatase no greater than 5 times ULN No significant hepatic dysfunction Renal: Creatinine no greater than 1.5 mg/dL Creatinine clearance at least 50 mL/min Cardiovascular: No significant cardiovascular dysfunction Neurologic: No dementia or altered mental status that would preclude informed consent No grade 3 motor or sensory neuropathy No significant neurologic dysfunction Other: Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception during and for 6 months after study No malabsorption syndrome or disease significantly affecting gastrointestinal function that would preclude absorption of eniluracil or fluorouracil No active infection requiring systemic therapy within 1 week of study No known platinum allergy No significant endocrine dysfunction

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: See Disease Characteristics Recovered from prior chemotherapy Endocrine therapy: Not specified Radiotherapy: Recovered from prior radiotherapy Surgery: No major resection of the stomach or proximal small bowel that would preclude absorption of eniluracil or fluorouracil

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment

Collaborators and Investigators

• Sponsor: NYU Langone Health
• Collaborators: National Cancer Institute (NCI)

Study record dates

Study Major Dates

• Study Start: August 1, 1999
• Primary Completion (Actual): June 1, 2001

Study Registration Dates

• First Submitted: April 6, 2000
• First Submitted That Met QC Criteria: June 7, 2004
• First Posted (Estimate): June 8, 2004

Study Record Updates

• Last Update Posted (Estimate): March 28, 2011
• Last Update Submitted That Met QC Criteria: March 25, 2011
• Last Verified: March 1, 2011

More Information

Terms related to this study

• Keywords: stage IV rectal cancer; stage IV colon cancer; recurrent colon cancer; recurrent rectal cancer; stage III colon cancer; stage III rectal cancer
• Additional Relevant MeSH Terms: Digestive System Diseases; Neoplasms; Neoplasms by Site; Gastrointestinal Neoplasms; Digestive System Neoplasms; Gastrointestinal Diseases; Colonic Diseases; Intestinal Diseases; Intestinal Neoplasms; Rectal Diseases; Colorectal Neoplasms; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Immunosuppressive Agents; Immunologic Factors; Fluorouracil; Oxaliplatin; Eniluracil
• Other Study ID Numbers: CDR0000067642; P30CA016087 (U.S. NIH Grant/Contract); NYU-9907; NCI-G00-1718