Vorinostat in Treating Women With Ductal Carcinoma in Situ of the Breast
RATIONALE: Vorinostat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
PURPOSE: This clinical trial is studying how well vorinostat works in treating women with ductal carcinoma in situ of the breast.
Genetic: protein expression analysis
Other: immunohistochemistry staining method
Other: laboratory biomarker analysis
Procedure: neoadjuvant therapy
Procedure: therapeutic conventional surgery
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Pharmacokinetics/Dynamics Study
Intervention Model: Single Group Assignment
Masking: Open Label
|Official Title:||A Window Trial of Vorinostat in Patients With Ductal Carcinoma in Situ (DCIS) of the Breast|
- Reduction in Ki-67 compared to baseline Ki-67 [ Time Frame: 3 days prior to surgery ] [ Designated as safety issue: No ]
- Changes in HDAC1 and HDAC6 expression and histone H4 and α-tubulin acetylation in breast tissue and serum samples [ Time Frame: 3 days prior to surgery ] [ Designated as safety issue: No ]
|Study Start Date:||July 2009|
|Estimated Study Completion Date:||December 2013|
|Primary Completion Date:||July 2011 (Final data collection date for primary outcome measure)|
|Experimental: Vorinostat||Drug: vorinostat Genetic: protein expression analysis Other: immunohistochemistry staining method Other: laboratory biomarker analysis Procedure: neoadjuvant therapy Procedure: therapeutic conventional surgery|
- To evaluate the in vivo molecular and biological effects of vorinostat by analyzing changes in proliferation and apoptosis, histone acetylation, and HDAC protein expression in women with ductal carcinoma in situ of the breast.
OUTLINE: Patients receive oral vorinostat twice a day for 3 days in the absence of unacceptable toxicity. Patients then undergo lumpectomy or mastectomy 2 hours after the last dose of vorinostat.
Blood and tissue samples are collected at baseline and during surgery for biomarker laboratory studies. Samples are analyzed by immunohistochemistry for Ki-67, HDAC1 and HDAC6 protein expression, and histone H4 and α-tubulin acetylation.
After completion of study therapy, patients are followed for 1 month and then every 6 months for 5 years.
|United States, California|
|UCSF Helen Diller Family Comprehensive Cancer Center|
|San Francisco, California, United States, 94115|
|Principal Investigator:||Laura Esserman, MD, MBA||University of California, San Francisco|