Trastuzumab and Docetaxel in Treating Patients Who Have Metastatic Prostate Cancer That Is Refractory to Hormone Therapy
RATIONALE: Monoclonal antibodies such as trastuzumab can locate tumor cells and either kill them or deliver tumor-killing substances to them without harming normal cells. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining monoclonal antibody therapy with chemotherapy may kill more tumor cells.
PURPOSE: Phase II trial to compare the effectiveness of trastuzumab alone and in combination with docetaxel in treating patients who have metastatic prostate cancer that is refractory to hormone therapy.
|Study Design:||Primary Purpose: Treatment|
|Official Title:||Randomized Phase II Trial of Herceptin (NSC 688097) and Weekly Docetaxel (NSC 628503) in Androgen-Independent (Horomone Refractory) Adenocarcinoma of the Prostate (CaP)|
|Study Start Date:||August 2000|
|Study Completion Date:||October 2002|
|Primary Completion Date:||October 2002 (Final data collection date for primary outcome measure)|
- Compare the efficacy and toxicity of docetaxel (arm I) vs trastuzumab (Herceptin) (arm II), followed by a combination of docetaxel and trastuzumab in patients with androgen-independent or hormone-refractory metastatic, Her2/neu-positive prostate cancer. (Arm I closed to accrual effective 07/30/2001.)
OUTLINE: This is a multicenter study.
- Arm I: Patients receive docetaxel IV over 1 hour weekly for 6 weeks. Treatment continues every 8 weeks for at least 2 courses in the absence of unacceptable toxicity. (Arm I closed to accrual effective 07/30/2001. Arm I patients crossover to arm II.)
- Arm II: Patients receive trastuzumab (Herceptin) IV over 30-90 minutes weekly for 8 weeks. Treatment continues every 8 weeks for at least 2 courses in the absence of unacceptable toxicity.
Patients with progressive or stable disease after 2 courses of single-agent therapy receive docetaxel IV over 1 hour on day 1 of each week for 6 consecutive weeks and trastuzumab IV over 30-90 minutes on day 1 of each week for 8 consecutive weeks. Treatment continues every 8 weeks for at least 2 courses in the absence of disease progression or unacceptable toxicity.
Patients with complete or partial response to single-agent therapy continue on that therapy until experiencing progressive or stable disease. The patients then proceed to combination therapy.
Patients are followed until death.
PROJECTED ACCRUAL: A total of 108-160 patients (54-80 per treatment arm) will be accrued for this study. (Arm I closed to accrual effective 07/30/2001.)
|United States, California|
|Cancer Center and Beckman Research Institute, City of Hope|
|Duarte, California, United States, 91010-3000|
|USC/Norris Comprehensive Cancer Center and Hospital|
|Los Angeles, California, United States, 90033-0804|
|University of California Davis Cancer Center|
|Sacramento, California, United States, 95817|
|United States, Massachusetts|
|St. Elizabeth's Medical Center of Boston|
|Brighton, Massachusetts, United States, 02135|
|Study Chair:||Primo N. Lara, MD||University of California, Davis|