Cabozantinib for Metastatic Triple Negative BrCa
This research study is Phase II clinical trial, which tests the safety and effectiveness of an investigational drug to learn whether the drug works in treating a specific cancer. "Investigational" means that the drug is being studied. It also means that the FDA has not yet approved XL184 for use in patients, including people with your type of cancer.
XL184 is a drug that may stop cancer cells from growing. It is a small molecule kinase inhibitor that inhibitors met and VEGFR2, as well as other targets. This drug has been used in Phase I studies in humans and laboratory experiments, and information from those other research studies suggests that this drug may help to slow tumor progression in this research study. This drug has also been used in a phase II study for breast cancer patients (a randomized discontinuation trial) suggesting good benefit for this group of patients.
In this research study, we are looking at the anti-tumor effects of XL184 in metastatic breast cancer.
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Phase II Study of XL184 (Cabozantinib) for Metastatic Triple-Negative Breast Cancer|
- Evaluation of XL184 based on objective response rate [ Time Frame: 2 years ] [ Designated as safety issue: No ]To evaluate the activity of XL184, as defined by objective response rate (ORR) in patients with triple-negative metastatic breast cancer
- Progression Free Survival [ Time Frame: 2 years ] [ Designated as safety issue: No ]Evaluation of Progression Free Survival
- c-Met and phospho c-Met expression [ Time Frame: 2 years ] [ Designated as safety issue: No ]To evaluate c-Met and phospho c-Met expression in archival tumor tissue
- Incidence of c-Met amplified circulating tumor cells [ Time Frame: 2 years ] [ Designated as safety issue: No ]To evaluate the incidence of c-Met amplified circulating tumor cells at baseline
- Evaluation of potential serum biomarkers [ Time Frame: 2 years ] [ Designated as safety issue: No ]Evaluate potential serum biomarkers of XL184
- Evaluate PTEN loss and PI3K mutations [ Time Frame: 2 years ] [ Designated as safety issue: No ]To evaluate PTEN loss and PI3K mutations in archival tumor tissue
- Evaluate change in radiotracer uptake within tumor site [ Time Frame: 2 years ] [ Designated as safety issue: No ]Evaluate if the percent change in radiotracer uptake within the tumor site(s) from baseline to the first and second follow-up FDG-PET/CT correlates RECIST response
|Study Start Date:||February 2013|
|Estimated Primary Completion Date:||February 2015 (Final data collection date for primary outcome measure)|
Experimental: Experimental Treatment Arm
XL184, taken orally once per day
Other Name: Cabozantinib
In order to determine if you are eligible to participate in this study you will need to undergo some tests and procedures. Many of these tests and procedures are likely to be part of regular cancer care and may be done even if it turns out that you do not take part in the research study. If you have had some of these tests and procedures recently, they may or may not have to be repeated. These tests and procedures include a medical history, physical exam, performance status, assessment of your tumor, blood tests, a urine test and a pregnancy test (if applicable). If these tests show that you are eligible to participate in the research study, you will begin the study treatment. If you do not meet the eligibility criteria, you will not be able to participate in this research study.
If you take part in this research study, you will be given a one month supply of XL184 and a study drug-dosing calendar for each treatment cycle. Each treatment cycle lasts 3 weeks during which time you will be taking the study drug once per day by mouth.
During all cycles you will have a physical exam and you will be asked questions about your general health and specific questions about any problems that you might be having and any medications you may be taking.
The investigators will assess your tumor by CT scan or MRI after 6 weeks of treatment, and then every nine weeks you remain on treatment.
The investigators will try to obtain samples of your tumor tissue from a biopsy if you have had one previously. A new biopsy is optional, but may provide researchers with additional information about how XL184 affects the tumor cells.
Participants will receive a pain questionnaire along with information on how to fill in the questionnaire.
The investigators would like to keep track of your medical condition for the rest of your life. The investigators would like to do this by calling you on the telephone once every 6 months to see how you are doing. Keeping in touch with you and checking your condition every year helps us look at the long-term effects of the research study.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01738438
|United States, Massachusetts|
|Dana-Farber Cancer Institute|
|Boston, Massachusetts, United States, 02215|
|Brigham and Women's Hospital|
|Boston, Massachusetts, United States, 02215|
|Massachusetts General Hospital|
|Boston, Massachusetts, United States, 02214|
|Dana-Farber Cancer Institute at Faulkner Hospital|
|Boston, Massachusetts, United States, 02130|
|Principal Investigator:||Sara Tolaney, MD, MPH||Dana-Farber Cancer Institute|