RATIONALE: Drugs used in chemotherapy, such as capecitabine, epirubicin, and carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more tumor cells. PURPOSE: This phase I trial is studying the side effects and best dose of capecitabine when given together with epirubicin and carboplatin in treating patients with progressive, unresectable, or metastatic cancer.
OBJECTIVES: Primary * Determine the recommended phase II dose of capecitabine when given together with epirubicin hydrochloride and carboplatin in patients with progressive, unresectable, or metastatic cancer. * Determine the toxicities of this regimen in these patients. Secondary * Correlate end-of-infusion levels of epirubicin hydrochloride and its metabolites with epirubicin hydrochloride dose and clinical toxicity in these patients. * Correlate the pharmacokinetics of capecitabine with clinical toxicity in these patients. * Determine the possible correlation between polymorphisms in the promoter region of the thymidylate synthase gene with clinical toxicity in these patients. * Document antitumor activity of this regimen in these patients. OUTLINE: This is a dose-escalation study of capecitabine. Patients receive epirubicin hydrochloride IV over 2 hours and carboplatin IV over 30 minutes on day 1 and oral capecitabine twice daily on days 2-5, 8-12, and 15-19. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of capecitabine 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. Peripheral blood is collected for pharmacokinetic and pharmacogenetic studies before beginning study treatment and periodically during study. Samples for the pharmacogenetic studies are analyzed for correlation between polymorphisms in the promoter region of the thymidylate synthase gene and clinical toxicity. Patients also undergo bone marrow aspirate before beginning study treatment for molecular profiling studies.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
46
University of Nebraska Medical Center, Eppley Cancer Center
Omaha, Nebraska, United States
Recommended phase II dose of capecitabine
Establish a recommended Phase II dose of oral capecitabine given twice daily on days 2-5, 8-12, and 15-19 in combination with fixed IV doses of epirubicin and carboplatin given day 1 of each 28-day cycle
Time frame: Every 28-days until first documented progression up to 63 months
Toxicities of combined chemotherapy regimen
Evaluate all toxicities associated with this combination chemotherapy regimen: 1 - mild, 2 - moderate, 3 = severe and 4 - life-threatening
Time frame: Every 28-days until first documented progression up to 63 months
End-of-infusion levels of epirubicin hydrochloride/metabolites and incidence of correlation with epirubicin hydrochloride dosing and clinical toxicity
Correlation of end-of-infusion levels of epirubicin hydrochloride and its metabolites with epirubicin hydrochloride dosing and clinical toxicity (1 - mild, 2 - moderate, 3 = severe and 4 - life-threatening)
Time frame: Each day of dosing up to 63 months
Correlation of the pharmacokinetics (speed of appearance in the blood plasma and its concentration) of capecitabine with clinical toxicity
Measure the pharmacokinetics of capecitabine and correlate these parameters with clinical toxicity
Time frame: Each day of dosing up to 63 months
Incidence of Correlation between polymorphisms in the promoter region of the thymidylate synthase gene with clinical toxicity
Assess possible correlation between polymorphisms in the promoter region of the thymidylate synthase gene with clinical toxicity
Time frame: Post-treatment up to 63 months
Antitumor activity
Document any anti-tumor activity (MTT assay is a quantitative and sensitive detection of cell proliferation as it measures the growth rate of cells by virtue of a linear relationship between cell activity and absorbance.)
Time frame: Prior to cycle 1, and then every two 28 day cycles up to 63 months
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