2004-06
2006-06
N/A
590
NCT00088894
National Cancer Institute (NCI)
National Cancer Institute (NCI)
INTERVENTIONAL
Gemcitabine With or Without Bevacizumab in Treating Patients With Locally Advanced or Metastatic Pancreatic Cancer
This randomized phase III trial is studying gemcitabine and bevacizumab to see how well they work compared to gemcitabine alone in treating patients with locally advanced or metastatic pancreatic cancer. 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 bevacizumab can locate tumor cells and either kill them or deliver tumor-killing substances to them without harming normal cells. Bevacizumab may also stop the growth of tumor cells by stopping blood flow to the tumor. Combining gemcitabine with bevacizumab may kill more tumor cells. It is not yet known whether gemcitabine is more effective with or without bevacizumab in treating pancreatic cancer.
PRIMARY OBJECTIVES: I. To determine if combination chemotherapy with gemcitabine and bevacizumab achieves superior survival compared to gemcitabine and placebo in patients with previously untreated advanced pancreatic cancer. SECONDARY OBJECTIVES: I. To compare the objective response rates, duration of response, progression free survival, and toxicity of these two regimens in patients with advanced pancreatic cancer. II. To measure baseline levels of VEGF and correlate with treatment outcome. III. To measure baseline and on treatment levels of additional growth factors that may be co- or counter- regulated with VEGF and correlate with response to treatment. IV. To measure baseline and on treatment levels of coagulation and endothelial cell activation markers that may predict for thrombotic or bleeding risks related to treatment. V. To generate protein expression profiles using a MALDI-TOF based platform from serum samples. To analyze and compare protein expression profiles to elucidate ion peaks that differentiate patients who respond to therapy from patients who do not respond. To identify proteins responsible for the differentially expressed ion peaks. To develop quantitative assays for each of these proteins. VI. To assess any differences in overall survival within the treatment arm (gemcitabine + bevacizumab), between the two VEGF genotypic groups: Group 1 denoted by individuals with CT or TT genotypes and Group 2 consisting of individuals with CC genotypes. VII. To conduct an exploratory analysis of gene-toxicity, gene-response, and gene-survival relationships for the various polymorphisms described in the genes implicated in gemcitabine pharmacology (CDA, DCK, DCTD, SLC29A1, SLC28A1, SLC29A2). An exploratory quantitative interaction between the genotypes (group 1 or 2) and the treatment arms (gemcitabine + bevacizumab or gemcitabine + placebo) in predicting overall survival will also be evaluated. VIII. To identify specific SNPs and genetic variation that are associated with differences among patients in the risk of toxicity. IX. To compare the effects of gemcitabine + bevacizumab versus gemcitabine + placebo on resource utilization, cost, and utilities, and if applicable, to make estimates of marginal cost-utility. OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are stratified according to ECOG performance status (0-1 vs 2), disease extent (metastatic vs locally advanced), and prior radiotherapy (yes vs no). Patients are randomized to 1 of 2 treatment arms. Arm I: Patients receive gemcitabine IV over 30 minutes on days 1, 8, and 15 and bevacizumab IV over 30-90 minutes on days 1 and 15. Arm II: Patients receive gemcitabine IV as in arm I and placebo IV over 30-90 minutes on days 1 and 15. In both arms, courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients are followed every 3 months for 1 year and then every 6 months for 3 years. PROJECTED ACCRUAL: A total of 590 patients (295 per treatment arm) will be accrued for this study within 26.8 months.
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Registration Dates | Results Reporting Dates | Study Record Updates |
---|---|---|
2004-08-04 | N/A | 2013-06-04 |
2004-08-04 | N/A | 2013-06-05 |
2004-08-05 | N/A | 2013-06 |
This section provides details of the study plan, including how the study is designed and what the study is measuring.
Primary Purpose:
Treatment
Allocation:
Randomized
Interventional Model:
Parallel
Masking:
Double
Arms and Interventions
Participant Group/Arm | Intervention/Treatment |
---|---|
EXPERIMENTAL: Arm I (gemcitabine hydrochloride, bevacizumab) Patients receive gemcitabine IV over 30 minutes on days 1, 8, and 15 and bevacizumab IV over 30-90 minutes on days 1 and 15. | DRUG: gemcitabine hydrochloride
BIOLOGICAL: bevacizumab
OTHER: laboratory biomarker analysis
OTHER: pharmacogenomic studies
OTHER: pharmacological study
|
ACTIVE_COMPARATOR: Arm II (gemcitabine hydrochloride, placebo) Patients receive gemcitabine IV as in arm I and placebo IV over 30-90 minutes on days 1 and 15. | DRUG: gemcitabine hydrochloride
OTHER: placebo
OTHER: laboratory biomarker analysis
OTHER: pharmacogenomic studies
OTHER: pharmacological study
|
Primary Outcome Measures | Measure Description | Time Frame |
---|---|---|
Overall survival (OS) | Based on the stratified logrank test. | From trial entry until death, assessed up to 7 years |
Discrepancies in the response rate between the two genotypic groups (CT/TT or CC) (Pharmacogenetics portion) | This analysis will be done in the context of a two-way multiplicative logistic model with genotype and treatment as the two factors. | Up to 7 years |
Grade 3-4 neutropenia in terms of specific single-nucleotide polymorphisms (SNPs) and/or copy number variations that are associated with the prevalence of these events (Clinical endpoint) | Up to 7 years |
Secondary Outcome Measures | Measure Description | Time Frame |
---|---|---|
Objective response (complete or partial [CR/PR]) | Up to 7 years | |
Duration of response | Time from the first tumor assessment that supports the patient's response to the time of disease progression or death from any cause, assessed up to 7 years | |
Progression-free survival (PFS) | The two-way multiplicative Cox model will be used. | From study entry until documented progression of disease or death from any cause, assessed up to 7 years |
Toxicity graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v3.0 | The two-way multiplicative Cox model will be used. | Up to 7 years |
Quantitative interaction between the genotypes (group 1 or 2) and the treatment arm (gemcitabine or gemcitabine + bevacizumab) in modeling response (Pharmacogenetics portion) | Up to 7 years | |
Objective response (PR/CR versus stable disease [SD]/progressive disease [PD]) (Clinical endpoint) | Up to 7 years | |
Disease-control (PR/CR/SD versus PD) (Clinical endpoint) | Up to 7 years | |
OS (Clinical endpoint) | This endpoint will be analyzed in the framework of a 3x6 singly ordered contingency table. | Up to 7 years |
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person’s general health condition or prior treatments.
Ages Eligible for Study:
ALL
Sexes Eligible for Study:
18 Years
Accepts Healthy Volunteers:
This is where you will find people and organizations involved with this study.
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
NPCF was founded on May 29, 2009 and is a 501(c)(3) organization. All donations are tax deductible.
The information and services provided by the National Pancreatic Cancer Foundation are for informational purposes only. The information and services are not intended to be substitutes for professional medical advice, diagnosis or treatment. The National Pancreatic Cancer Foundation does not recommend nor endorse any specific physicians, products or treatments even though they may be mentioned on this site.