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About
RATIONALE: Drugs used in chemotherapy, such as gemcitabine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Erlotinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as panitumumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Panitumumab may also stop the growth of pancreatic cancer by blocking blood flow to the tumor.
PURPOSE: This randomized phase II trial is studying how well giving panitumumab together with gemcitabine and erlotinib works compared to giving gemcitabine and erlotinib alone in treating patients with metastatic pancreatic cancer.
Full description
OBJECTIVES:
Primary
Secondary
OUTLINE: This is a multicenter study. Patients are stratified according to ECOG performance status (0 vs 1) and prior adjuvant chemotherapy (yes vs no). The first 6 patients are assigned to arm II. Subsequent patients are randomized to 1 of 2 treatment arms.
Stool samples are collected at baseline and analyzed for KRAS mutations via protein analyses.
Quality of life will be assessed at baseline, every 2 courses during treatment, and at the end of treatment.
After the second progression, patients are followed every 3-6 months for 2 years.
Enrollment
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Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
Histologically or cytologically confirmed adenocarcinoma of the pancreas (ductal or undifferentiated)
No islet cell, acinar cell, or cystadenocarcinomas
No locally advanced disease
No history or known presence of CNS metastases
PATIENT CHARACTERISTICS:
PRIOR CONCURRENT THERAPY:
Recovered from prior therapy
More than 4 months since prior radiotherapy, immunotherapy, or biologic therapy
More than 4 weeks since prior and no elective or planned major surgery
More than 2 weeks since prior minor and no elective or planned surgery
No prior cytotoxic chemotherapy for metastatic disease
Adjuvant chemotherapy for completely resected disease or chemoradiotherapy for locally advanced disease is allowed, provided it was administered > 6 months prior to study entry
Gemcitabine hydrochloride used as either a radiosensitizer or as maintenance therapy is allowed, provided more than 6 months have elapsed since the last day of treatment
No prior anti-EGFR antibody therapy (e.g., cetuximab) or treatment with small molecule EGFR inhibitors (e.g., gefitinib hydrochloride, erlotinib hydrochloride, or lapatinib)
No concurrent immunotherapy or radiotherapy
No other concurrent chemotherapy
No concurrent colony-stimulating factors during the first course of study therapy
Primary purpose
Allocation
Interventional model
Masking
104 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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