Pancreatic Cancer
Conditions
Keywords
adenocarcinoma of the pancreas, stage III pancreatic cancer, stage IV pancreatic cancer
Brief summary
RATIONALE: Drugs used in chemotherapy, such as gemcitabine, work in different ways to stop tumor cells from dividing so they stop growing or die. Monoclonal antibodies, such as cetuximab, can locate tumor cells and either kill them or deliver tumor-killing substances to them without harming normal cells. It is not yet known whether gemcitabine is more effective with or without cetuximab in treating pancreatic cancer. PURPOSE: This randomized phase III trial is studying giving gemcitabine together with cetuximab to see how well it works compared to giving gemcitabine alone as first-line therapy in treating patients with locally advanced unresectable or metastatic adenocarcinoma of the pancreas.
Detailed description
OBJECTIVES: * Compare the overall survival of patients with locally advanced unresectable or metastatic adenocarcinoma of the pancreas treated with gemcitabine and cetuximab vs gemcitabine alone. * Compare the time to treatment failure in patients treated with these regimens. * Estimate the percentage of patients with epidermal growth factor receptor (EGFR) tumor expression in patients treated with these regimens. * Compare the overall survival of patients in the EGFR-positive subset treated with these regimens. * Compare the toxicity of these regimens in these patients. * Compare the total response rate (confirmed and unconfirmed complete and partial response) in patients with measurable disease treated with these regimens. * Compare the patient report of pain and quality of life of patients treated with these regimens. OUTLINE: This is an open-label, randomized, multicenter study. Patients are stratified according to disease status (locally advanced unresectable vs metastatic), Zubrod performance status (0 or 1 vs 2), and prior pancreatectomy (yes vs no). Patients are randomized to 1 of 2 treatment arms. * Arm I: Patients receive cetuximab IV over 1-2 hours on days 1, 8, 15, and 22 and gemcitabine IV over 30 minutes on days 1, 8, 15, and 22 for course 1 and days 1, 8, and 15 for all subsequent courses. * Arm II: Patients receive gemcitabine as in arm I. In both arms, courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Quality of life is assessed at baseline, before each course, and at the end of study therapy. Patients are followed every 6 months for 2 years and then annually for 1 year. PROJECTED ACCRUAL: A total of 704 patients (352 per treatment arm) will be accrued for this study within 5 years.
Interventions
BIOLOGICALcetuximab
Loading dose: Cetuxiumab 400mg/m2, IV on Day 1 (cycle 1 only). Weekly maintenance: Cetuximab 250mg/m2, IV on Days 8,15,22 of cycle 1 & days 1,8,15,22 of all subsequent cycles
DRUGgemcitabine hydrochloride
1000mg/m2 IV over 30 minutes
Sponsors
National Cancer Institute (NCI)
Cancer and Leukemia Group B
NCIC Clinical Trials Group
SWOG Cancer Research Network
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
DISEASE CHARACTERISTICS: * Histologically\* or cytologically confirmed pancreatic adenocarcinoma meeting 1 of the following criteria: * Locally advanced unresectable disease * Distant metastatic disease NOTE: If diagnosis is based on a metastatic site the histology must be compatible with pancreatic cancer * Measurable or nonmeasurable disease by x-ray, scan, or physical examination * Tumor tissue must be submitted for evaluation of epidermal growth factor receptor expression before study entry * None of the following tumor types are allowed: * Endocrine tumors * Lymphoma of the pancreas * Ampullary cancer * No known brain metastases PATIENT CHARACTERISTICS: Age * Not specified Performance status * Zubrod 0-2 Life expectancy * At least 3 months Hematopoietic * Absolute granulocyte count at least 1,500/mm\^3 * Platelet count at least 100,000/mm\^3 Hepatic * Bilirubin no greater than 2.0 times upper limit of normal (ULN) * SGOT or SGPT no greater than 2.5 times ULN Renal * Creatinine no greater than 2.0 mg/dL Cardiovascular * No significant history of cardiac disease * No uncontrolled hypertension * No unstable angina * No uncontrolled arrhythmia * No congestive heart failure Other * Not pregnant or nursing * Fertile patients must use effective contraception * HIV negative * No other malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer, carcinoma in situ of the cervix, or adequately treated stage I or II cancer that is currently in remission PRIOR CONCURRENT THERAPY: Biologic therapy * No prior immunotherapy for advanced pancreatic cancer * No prior cetuximab or other therapy that targets the epidermal growth factor pathway * No prior chimerized or murine monoclonal antibody therapy * No other concurrent anticancer immunotherapy Chemotherapy * At least 6 months since prior adjuvant chemotherapy * No prior chemotherapy or chemoradiotherapy for advanced pancreatic cancer * No prior gemcitabine * No other concurrent anticancer chemotherapy Endocrine therapy * No prior hormonal therapy for advanced pancreatic cancer * No concurrent anticancer hormonal therapy Radiotherapy * See Chemotherapy * At least 28 days since prior radiotherapy and recovered * Prior palliative radiotherapy to metastatic sites allowed * No concurrent anticancer radiotherapy, including whole brain radiotherapy for progressive disease (i.e., CNS metastasis) Surgery * At least 14 days since prior pancreatic cancer surgery and recovered Other * No other concurrent anticancer therapy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overall survival comparison between treatment groups | every 4 weeks for 3 years |
Secondary
| Measure | Time frame |
|---|---|
| Time to treatment failure comparison between groups from registration to first observation of progressive disease, symptomatic deterioration, or death | every 4 weeks while on treatment |
| Percentage of patients with EGFR tumor expression and compare overall survival of patients in the EGFR subset | every 4 weeks for 3 years |
| Response rate comparison between treatment groups as measured by RECIST and radiological evaluation at every other course | every 9 weeks until progression |
| Total response rate comparison between treatment groups in the subset of patients with measurable disease by RECIST at every other course | every 9 weeks until progression |
| Pain and quality of life comparison between treatment groups as measured by patient questionnaire at baseline, before each course, and then completion of study treatment | every 4 weeks while on treatment |
| Toxicity profile comparison of patients treated with 2 regimens and measured until 30 days after completion of study treatment | every 4 weeks while on treatment |
Countries
Canada, United States
Outcome results
None listed