Oxaliplatin With or Without Gefitinib in Treating Patients With Metastatic or Locally Recurrent Colorectal Cancer

Study Overview
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Brief Summary
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RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Biological therapies such as gefitinib may interfere with the growth of the tumor cells and slow the growth of colorectal cancer. Combining chemotherapy with gefitinib may kill more tumor cells. PURPOSE: Phase I/II trial to compare the effectiveness of chemotherapy with or without gefitinib in treating patients who have metastatic or locally recurrent colorectal cancer.

Detailed Description
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OBJECTIVES: Determine the recommended phase II dose of gefitinib when administered in combination with oxaliplatin in patients with metastatic or locally recurrent colorectal cancer. Determine the dose-limiting toxicity of this regimen in these patients. Compare the time to progression, objective response rate, and median and overall survival in patients treated with oxaliplatin with or without gefitinib. Compare the toxicity of these regimens in these patients. OUTLINE: This is a phase I dose-escalation study of gefitinib followed by a phase II randomized, multicenter study. Patients are stratified according to ECOG performance status (0 vs 1-2). Phase I: Patients receive oxaliplatin IV over 2 hours on day 1 and oral gefitinib once daily on days 1-21. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of gefitinib 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. Phase II: Patients are randomized to one of two treatment arms. Arm I: Patients receive oxaliplatin IV over 2 hours on day 1. Arm II: Patients receive oxaliplatin as in arm I and oral gefitinib once daily at the MTD on days 1-21. In both arms, treatment repeats every 21 days for up to 6 courses in the absence of disease progression or unacceptable toxicity. Patients in arm II with stable or responding disease after 6 courses may continue to receive gefitinib alone until disease progression. PROJECTED ACCRUAL: Approximately 77 patients (9 for phase I and 68 for phase II) will be accrued for this study within 12-14 months.

Official Title
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A Phase I/ Randomized Phase II Trial Of Oxaliplatin (NSC #266046) With Or Without ZD 1839 (NSC # 715055) In Patients With Advanced Colorectal Carcinoma

Conditions
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Colorectal Cancer

Intervention / Treatment
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* Drug: ZD1839
* Drug: oxaliplatin


Participation Criteria
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Eligibility Criteria
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DISEASE CHARACTERISTICS: Histologically or cytologically confirmed adenocarcinoma of the colon or rectum that is not amenable to potentially curative surgical resection Metastatic or locally recurrent disease Tumor in liver or lung accessible to needle biopsy by ultrasound or CT scan guidance At least 1 measurable lesion At least 20 mm by conventional techniques, including physical examination, CT scan, or MRI OR At least 10 mm by spiral CT scan Lesions on colonoscopic examination or barium studies, bone metastases, CNS lesions, and ascites are not considered measurable Failed prior therapy with fluorouracil, leucovorin calcium, and irinotecan given either sequentially or in combination No known brain metastases PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Life expectancy: At least 3 months Hematopoietic: WBC at least 3,000/mm^3 Absolute neutrophil count at least 1,500/mm^3 Platelet count at least 100,000/mm^3 Hepatic: Bilirubin no greater than 1.5 mg/dL AST/ALT no greater than 2.5 times upper limit of normal Renal: Creatinine no greater than 1.5 mg/dL OR Creatinine clearance at least 60 mL/min Cardiovascular: No symptomatic congestive heart failure No unstable angina pectoris No cardiac arrhythmia Other: Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception No peripheral neuropathy greater than grade 1 No other concurrent uncontrolled illness that would preclude study No concurrent psychiatric illness or social situation that would preclude study No ongoing or active infection No prior allergic reaction to compounds of similar chemical or biologic composition to oxaliplatin or gefitinib No other concurrent malignancy except non-melanoma skin cancer or carcinoma in situ of the cervix unless considered to be at less than 30% risk of relapse after completion of therapy PRIOR CONCURRENT THERAPY: Biologic therapy: No prior epidermal growth factor inhibitor At least 24 hours since prior colony-stimulating factors No concurrent colony-stimulating factors during first course of study therapy Chemotherapy: See Disease Characteristics No more than 2 prior chemotherapy regimens for metastatic disease Prior adjuvant chemotherapy allowed At least 4 weeks since prior cytotoxic chemotherapy and recovered No prior cisplatin or oxaliplatin Endocrine therapy: Not specified Radiotherapy: At least 4 weeks since prior radiotherapy and recovered Surgery: See Disease Characteristics At least 4 weeks since prior surgery Other: At least 30 days since prior investigational agents Recovered from prior therapy No concurrent anti-retroviral therapy for HIV No other concurrent investigational or commercial agents or therapies for malignancy

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Phase 2: Oxaliplatin plus ZD1839<br>Oxaliplatin will be administered by IV infusion once every 21 days at a fixed dose of 130 mg/m2 and ZD1839 will be taken orally at a dose of 250 mg or 500 mg daily (as determined during phase 1). Subjects can continue to receive the combination for 6 cycles (each cycle is 21 days). After 6 cycles of the combination, subjects can continue to take ZD1839 alone until their cancer worsens. | Drug: ZD1839<br> <br> * Other names: gefitinib, Iressa ®;Drug: oxaliplatin<br> <br> * Other names: Eloxatin ®;|
| Experimental: Phase 2: Oxaliplatin alone<br>Oxaliplatin will be administered by IV infusion once every 21 days at a fixed dose of 130 mg/m2 for up to 6 cycles. Each cycle will last 21 days. | Drug: oxaliplatin<br> <br> * Other names: Eloxatin ®;|
| Experimental: Phase I: Oxaliplatin with ZD1839<br>Oxaliplatin will be administered by IV infusion once every 21 days at a fixed dose of 130 mg/m2. ZD1839 will be taken orally at a dose of 250 mg or 500 mg daily. | Drug: ZD1839<br> <br> * Other names: gefitinib, Iressa ®;Drug: oxaliplatin<br> <br> * Other names: Eloxatin ®;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Recommended dose of ZD1839 in combination with oxaliplatin |  | 3 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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stage IV colon cancer, stage IV rectal cancer, recurrent colon cancer, recurrent rectal cancer, adenocarcinoma of the colon, adenocarcinoma of the rectum