Gefitinib and Combination Chemotherapy in Treating Patients With Advanced Solid Tumors or Colorectal Cancer

Study Overview
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Brief Summary
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RATIONALE: Biological therapies such as gefitinib may interfere with the growth of tumor cells and slow the growth of the tumor. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug with gefitinib may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of gefitinib and oxaliplatin combined with leucovorin and fluorouracil in treating patients who have advanced solid tumors or colorectal cancer.

Detailed Description
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OBJECTIVES: Determine the maximum tolerated dose of gefitinib and oxaliplatin when combined with fluorouracil and leucovorin calcium in patients with advanced solid tumors. (Phase I) (Phase I closed as of 5/30/02) Determine the pharmacokinetics and pharmacodynamics of this regimen in these patients. Determine the dose-limiting toxic effects and other toxic effects of this regimen in these patients. Determine the antitumor response in patients with advanced colorectal adenocarcinoma treated with this regimen. (Phase II) Determine the overall survival and time to progression in patients with advanced colorectal adenocarcinoma treated with this regimen. (Phase II) Determine the presence of polymorphisms or other genetic alterations in genes implicated in the action of this regimen and determine their possible relationship with toxic effects of and antitumor response to this regimen in these patients. OUTLINE: This is a dose-escalation study of gefitinib and oxaliplatin (L-OHP). Phase I (closed as of 5/30/02): Patients receive L-OHP IV over 2 hours on day 1 and leucovorin calcium (CF) IV over 2 hours followed by fluorouracil (5-FU) IV bolus and 5-FU IV over 22 hours on days 1 and 2 during all courses. Beginning with course 2, patients also receive oral gefitinib daily on days 1-14. Courses repeat every 2 weeks in the absence of disease progression or unacceptable toxicity. Patients who achieve complete response (CR) receive 2 additional courses past CR. Sequential dose escalation of gefitinib is followed by sequential dose escalation of L-OHP. Cohorts of 3-6 patients receive escalating doses of gefitinib and L-OHP until the maximum tolerated dose (MTD) of the combination is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose-limiting toxicity. Phase II: Patients are stratified according to prior therapy: Stratum A: Received no prior therapy or received adjuvant 5-FU/CF or adjuvant 5-FU/CF/irinotecan at least 6 months ago Stratum B: Received prior therapy for metastatic disease or received adjuvant 5-FU/CF fewer than 6 months ago or prior irinotecan Patients receive therapy as in phase I (closed as of 5/30/02) with L-OHP and gefitinib at the recommended phase II dose. PROJECTED ACCRUAL: Approximately 12-15 patients will be accrued for phase I of the study within 4-6 months (Phase I closed as of 5/30/02). A total of 30-81 patients (18-46 for stratum A and 12-35 for stratum B) will be accrued for phase II of the study within 18 months.

Official Title
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A Study of ZD1839 (Iressa) in Combination With Oxaliplatin, 5-Fluorouracil (5-FU) and Leucovorin (LV) in Advanced Solid Malignancies (Phase I) and Advanced Colorectal Cancers (Phase II)

Conditions
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Colorectal Cancer

Intervention / Treatment
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* Drug: FOLFOX regimen
* Drug: fluorouracil
* Drug: gefitinib
* Drug: leucovorin calcium
* Drug: oxaliplatin


Participation Criteria
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Eligibility Criteria
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DISEASE CHARACTERISTICS: Phase I (closed as of 5/30/02): Histologically confirmed metastatic or unresectable solid tumor for which standard curative or palliative measures do not exist or are no longer effective Phase II: Histologically confirmed metastatic or unresectable colorectal adenocarcinoma Measurable disease or assessable but nonmeasurable disease (including ascites, pleural/pericardial effusions, lymphangitis cutis/pulmonis, inflammatory breast disease, abdominal masses (not followed by CT scan/MRI), or cystic lesions) Disease characterized only by elevated serum tumor marker allowed No known brain metastases PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 OR Karnofsky 60-100% Life expectancy: More than 3 months Hematopoietic: 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 normal 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 ongoing or active infection No peripheral neuropathy No prior allergic reactions to compounds of similar chemical or biologic composition to gefitinib or other study agents No other concurrent uncontrolled illness No psychiatric illness or social situation that would preclude study compliance PRIOR CONCURRENT THERAPY: Biologic therapy: No prior bone marrow or stem cell support with high-dose chemotherapy At least 24 hours since prior colony-stimulating growth factors Chemotherapy: See Biologic therapy At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas or mitomycin) and recovered No more than 3 prior chemotherapy regimens Endocrine therapy: At least 2 weeks since prior hormonal therapy except megestrol for anorexia/cachexia Radiotherapy: No prior pelvic or whole abdominal radiotherapy At least 4 weeks since other prior radiotherapy and recovered Surgery: At least 4 weeks since prior major surgery (e.g., laparotomy) and recovered Other: At least 4 weeks since prior investigational therapy No other concurrent investigational or commercial anticancer agents No concurrent combination antiretroviral therapy for HIV-positive patients

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


Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: FOLFOX regimen|nan|
|Drug: fluorouracil|nan|
|Drug: gefitinib|nan|
|Drug: leucovorin calcium|nan|
|Drug: oxaliplatin|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |

 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