Gefitinib and Etoposide in Treating Patients With Advanced Prostate Cancer That Did Not Respond to Hormone Therapy
RATIONALE: Gefitinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor. Drugs used in chemotherapy, such as etoposide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving gefitinib together with etoposide may kill more tumor cells.
PURPOSE: This phase II trial is studying how well giving gefitinib together with etoposide works in treating patients with advanced prostate cancer that did not respond to hormone therapy.
Other: laboratory biomarker analysis
|Study Design:||Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Phase II Study Evaluating the Efficacy of Iressa Plus Etoposide in Patients With Advanced Hormone Refractory Prostate Cancer|
- Overall response rate as measured by RECIST criteria [ Time Frame: After 14 patients are enrolled ] [ Designated as safety issue: No ]If there is at least 1 response, then 7 additional patients will be enrolled. If there are 4 or more responders overall, then the combination will be considered active and warrant further study.
- Adverse events and toxicities as assessed by NCI CTC v2.0 [ Time Frame: When reported by patients, and at physical evaluations ] [ Designated as safety issue: Yes ]
- Laboratory values [ Time Frame: At every cycle ] [ Designated as safety issue: No ]
- Biomarkers [ Time Frame: At every cycle ] [ Designated as safety issue: No ]
|Study Start Date:||January 2004|
|Estimated Primary Completion Date:||December 2014 (Final data collection date for primary outcome measure)|
- Determine the activity of gefitinib and etoposide, in terms of overall response rate, in patients with hormone-refractory advanced prostate cancer previously treated with docetaxel-based therapy.
- Determine the toxicity of this regimen in these patients.
- Determine whether related biomarkers can help predict response in patients treated with this regimen.
OUTLINE: This is a nonrandomized study.
Patients receive oral gefitinib once daily on days 1-28 and oral etoposide once daily on days 1-14. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity.
Patients undergo blood sample collection at baseline and periodically during study for correlative studies. Blood samples are analyzed by enzyme-linked immunosorbent assays for biomarkers (e.g., VEGF, basic fibroblast growth factor, and anti-EGFR antibody titers) in order to determine whether one or more of these biomarkers can predict response.
After completion of study therapy, patients are followed periodically.
|United States, Nebraska|
|UNMC Eppley Cancer Center at the University of Nebraska Medical Center|
|Omaha, Nebraska, United States, 68198-6805|
|Principal Investigator:||Ralph Hauke, MD||University of Nebraska|
|Principal Investigator:||Elizabeth C. Reed, MD||University of Nebraska|