Anti-Hormone Therapy (With Anastrazole and Fulvestrant) Before Surgery to Treat Postmenopausal Women With Breast Cancer.
|Study Design:||Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Treatment
|Official Title:||Combined Fulvestrant and Anastrozole as Neo-adjuvant Endocrine Therapy in Postmenopausal Women With Hormone Receptor Positive Invasive Breast Cancer|
- Pathologic Complete Response (PCR) Rate [ Time Frame: 4 months ]Pathologic complete response (PCR) rate with 4 months of neo-adjuvant combination endocrine therapy (Anastrazole and Fulvestrant).
|Study Start Date:||May 2009|
|Estimated Study Completion Date:||September 2017|
|Primary Completion Date:||April 2015 (Final data collection date for primary outcome measure)|
Experimental: Arimidex + Faslodex
Patients will have an Oncotype Dx performed and if the RS is <25, they will receive Anastrazole and Fulvestrant for 16 weeks.
On day 28, subjects will be evaluated for side effects and a needle core biopsy (optional) will be obtained. Response evaluation will occur every 28 days. All treatment will continue for 4 months followed by breast surgery. After surgery, patients will be off study and will receive additional breast cancer therapy per their treating physician. Patients who develop progressive disease on protocol will be removed from the study and treated by their treating physician. The protocol will be closed after the last accrued patient has had surgery.
Fulvestrant IM on day 14 and on day 28 followed by day 28 of all subsequent cycles thereafter. Treatment will be continued for a total of 4 cycles.
Other Name: FaslodexDrug: Anastrazole
Anastrazole, 1mg by mouth every day of all 28 day cycles and continued for a total of 4 cycles
Other Name: Arimidex
Hormonal therapies are generally preferred treatments of breast cancer because they have minimal side effects. Hormone receptor positive breast cancer generally does not respond very well to chemotherapy, which has many side effects. Hormonal therapy with a single drug such as Anastrozole is the main type of treatment used to reduce the risk of cancer recurrence. Whether a combination of Anastrazole nad Fulvestrant is effective and feasible is not known. This study is being done to answer this question.
This is a phase II single arm study. Patients will have an Oncotype Dx performed and only if the recurrence score is low or intermediate, they would be eligible. Eligible patients will receive Anastrazole and Fulvestrant for 16 week.
Subjects will receive Anastrazole 1 mg po q day and Fulvestrant 500 mg IM, day 1, day 14, day 28 and thereafter once every 28 days on outpatient basis. On day 28, subjects will be evaluated for side effects and clinically and a needle core biopsy (optional) will be obtained. If there is increase in Ki 67 by 50%, subjects will be taken off the study. Response evaluation will occur every 28 days during outpatient clinic visits. All treatment will continue until 4 months when patients will undergo surgical intervention. After surgery, patients will be off study and will receive additional breast cancer therapy at the discretion of their treating physician. Patients who develop progressive disease on protocol will be removed from the study and will then be treated at the discretion of the treating physician. The protocol will be closed after the last accrued patient has had surgery.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00921115
|United States, Kansas|
|University of Kansas Medical Center|
|Kansas City, Kansas, United States, 66160|
|Principal Investigator:||Qamar Khan, MD||University of Kansas Medical Center|