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About
RATIONALE: Drugs used in chemotherapy such as gemcitabine use different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Radiation therapy uses high-energy x-rays to kill tumor cells. Giving these treatments after surgery may kill any tumor cells that remain after surgery. It is not yet known whether giving gemcitabine together with radiation therapy is more effective than gemcitabine alone following surgery in treating pancreatic cancer.
PURPOSE: This randomized phase II/III trial is studying how well giving gemcitabine together with radiation therapy works and compares it to gemcitabine alone in treating patients who have undergone surgery for pancreatic cancer.
Full description
OBJECTIVES:
Phase II:
Determine the feasibility of gemcitabine followed by chemoradiotherapy with gemcitabine vs gemcitabine alone after prior curative resection in patients with pancreatic head adenocarcinoma. Compare the tolerability of these regimens, in terms of acute and late toxicity, in these patients.
Phase III:
Compare the disease-free and overall survival of patients treated with these regimens . Compare the quality of life of patients treated with these regimens. Compare the toxicity of these regimens in these patients. Determine the sites of recurrence in patients treated with these regimens.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to ECOG/WHO performance status (0-1 vs 2), participating center, and N stage (N0 vs N1 vs NX). Patients are randomized to 1 of 2 treatment arms.
Arm I: Within 8 weeks after prior surgical resection, patients receive gemcitabine IV over 30 minutes on days 1, 8, and 15. Treatment repeats every 4 weeks for 2 courses.
Patients then receive additional gemcitabine IV over 30 minutes on days 57, 64, 71, 78, 85, and 92. Beginning on day 57, patients also undergo radiotherapy once daily, 5 days a week, for 6 weeks. Treatment continues in the absence of disease progression or unacceptable toxicity.
Arm II: Patients receive gemcitabine IV over 30 minutes on days 1, 8, and 15. Treatment repeats every 4 weeks for 4 courses.
Quality of life (QOL) is assessed in both arms, according to the following schedules:
Arm I: QOL is assessed at baseline; at 3 weeks after the beginning of chemoradiotherapy; after the completion of chemoradiotherapy; every 3 months for 2 years; and then every 6 months for 1 year. Arm II: QOL is assessed at baseline; at 12 weeks; at 16 weeks; every 3 months for 2 years; and then every 6 months for 1 year.
Patients are followed every 3 months for 2 years and then every 6 months thereafter.
PROJECTED ACCRUAL: A total of 538 patients (269 per treatment arm) will be accrued for this study within 3 years.
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Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
Histologically confirmed pancreatic head adenocarcinoma
Prior pancreaticoduodenectomy required
Any number of lymph nodes (less than 10 OR 10 or more) allowed
No periampullary cancer
PATIENT CHARACTERISTICS:
Age
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Hematopoietic
Hepatic
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PRIOR CONCURRENT THERAPY:
Biologic therapy
Chemotherapy
Endocrine therapy
Radiotherapy
Surgery
Other
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Data sourced from clinicaltrials.gov
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