Breast Cancer, CNS Disease
Conditions
Keywords
metastatic breast cancer, invasive breast cancer, brain metastases, ZK-EPO
Brief summary
The purpose of this research study is to determine the effects (good and bad) of ZK219477(sagopilone) on participants and their cancer. ZK219477 is a chemotherapy drug that is thought to work by interfering with the ability of cancer cells to grow and divide. It is a part of a group of drugs called epothilones which appear to cause shrinkage of cancer in some patients with breast cancer. It is generally difficult for chemotherapy to enter the brain. However, it is believed that ZK219477 crosses into the brain. We are also studying whether an investigational MRI scan procedure may eventually help to predict which patients will benefit from ZK219477.
Detailed description
* Participants will be given ZK219477 intravenously over approximately 30 minutes every three weeks. * During all treatment cycles a physical exam and questions about the participants general health and specific questions about any problems they may be having will be performed. * At least every three weeks blood tests will be done to assess the effect of ZK219477 on the body. * After every 2 cycles of treatment, participants will have additional scans to assess the effect of ZK219477 on their cancer. This will include a CT scan of the abdomen, chest, and pelvis, and an MRI of the brain. * At the time of the standard MRI, participants will be asked to undergo an additional MRI sequence, which means they will be in the MRI machine for approximately 15-20 more minutes.
Interventions
Given intravenously over approximately 30 minutes once every 3 weeks
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients must have histologically or cytologically invasive breast cancer, with metastatic disease at the time of screening * Measurable Central Nervous System (CNS) disease, as defined as at least one lesion \> or equal too 10mm in longest dimension * New or progressive CNS lesions after at least one prior standard CNS-directed therapy for treatment of brain metastases, which could include surgical resection, whole brain radiotherapy (WBRT), and/or stereotactic radiosurgery (SRS). Patients must have received prior WBRT, SRS or both. * Patient has been evaluated by a radiation oncologist, who feels that the plan to evaluate systemic chemotherapy in place of additional brain radiotherapy is an acceptable option * No increase in corticosteroid use in the week prior to study entry * Any number prior lines of chemotherapy for metastatic breast cancer * 18 years of age of older * Life expectancy of greater than 12 weeks * ECOG Performance Status 0-2 * Patients must have normal organ function as outlined in the protocol
Exclusion criteria
* Patients who have had chemotherapy within 3 weeks prior to entering the study or those who have not recovered from adverse events due to agents administered more than 3 weeks earlier * Patients who have had XRT within 3 weeks prior to entering the study or those who have not recovered from adverse events due to XRT * Patients may not be receiving any other investigational agent * Patients may not be receiving any cancer-directed therapy * Prior treatment with investigational chemotherapy for brain metastases * Prior treatment with epothilone for metastatic breast cancer * Leptomeningeal carcinomatosis as the only site of CNS involvement. * Concurrent treatment with an enzyme inducing antiepileptic drug, including phenytoin, carbamezepine, phenobarbital, or oxacarbazepine * More than 2 seizures over the last four weeks prior to study entry * Known contraindication to MRI or gadolinium contrast, such as cardiac pacemaker, ocular foreign body, or shrapnel * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Pregnant or breastfeeding women.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Objective Response Rate in the Central Nervous System (CNS) | 2 years | Objective response rate is defined as at least a 50 percent reduction in the Central Nervous system target lesion volume compared to the lesion volume at baseline. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of Subjects With Adverse Events (Any Grade) | 2 years | Adverse events per NCI CTCAE |
| Objective Response Rate in Non-Central Nervous System (CNS) Sites | 2 years | Non-CNS response rate (according to RECIST 1.0) limited to patients with measurable non-CNS disease |
| Time to Progression at Any Site. | 2 years | Time from date of registration until the date of the first documentation of progression or date of death (from any cause),whichever came first, up to 2 years from registration. Progression is defined as either progression in the Central Nervous system (CNS) according to volumetric measurement (Freedman et al. 2011) and /or progression in non-Central Nervous System lesion Measured by RECIST 1.0 |
| Clinical Benefit Rate. | 2 years | CBR = CR + PR + SD \> 24 weeks in CNS with at least stable non-CNS disease |
Countries
United States
Participant flow
Recruitment details
Patients were enrolled at Dana-Farber/Harvard Cancer Center between 8/1/2007-10/29/2009.
Participants by arm
| Arm | Count |
|---|---|
| Sagopilone Either 16 mg/m2 or 22 mg/m2 IV Q3W | 15 |
| Total | 15 |
Baseline characteristics
| Characteristic | Sagopilone |
|---|---|
| Age, Categorical <=18 years | 0 Participants |
| Age, Categorical >=65 years | 2 Participants |
| Age, Categorical Between 18 and 65 years | 13 Participants |
| Age Continuous | 50.3 years STANDARD_DEVIATION 12.7 |
| Region of Enrollment United States | 15 participants |
| Sex: Female, Male Female | 15 Participants |
| Sex: Female, Male Male | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 15 / 15 |
| serious Total, serious adverse events | 1 / 15 |
Outcome results
Objective Response Rate in the Central Nervous System (CNS)
Objective response rate is defined as at least a 50 percent reduction in the Central Nervous system target lesion volume compared to the lesion volume at baseline.
Time frame: 2 years
Population: The study was closed prior to full accrual as detailed in the manuscript
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Sagopilone | Objective Response Rate in the Central Nervous System (CNS) | 13.3 percentage of participants |
Clinical Benefit Rate.
CBR = CR + PR + SD \> 24 weeks in CNS with at least stable non-CNS disease
Time frame: 2 years
Population: all pts who received at least 1 dose of protocol therapy
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Sagopilone | Clinical Benefit Rate. | 13 percentage of participants |
Number of Subjects With Adverse Events (Any Grade)
Adverse events per NCI CTCAE
Time frame: 2 years
Population: Study was closed prior to full accrual for reasons detailed in published manuscript
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Sagopilone | Number of Subjects With Adverse Events (Any Grade) | 15 participants |
Objective Response Rate in Non-Central Nervous System (CNS) Sites
Non-CNS response rate (according to RECIST 1.0) limited to patients with measurable non-CNS disease
Time frame: 2 years
Population: only included the 8 pts with measurable non-CNS disease at baseline. The 7 pts with non-measurable non-CNS disease at baseline were not included in the denominator for this endpoint
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Sagopilone | Objective Response Rate in Non-Central Nervous System (CNS) Sites | 0 percentage of participants |
Time to Progression at Any Site.
Time from date of registration until the date of the first documentation of progression or date of death (from any cause),whichever came first, up to 2 years from registration. Progression is defined as either progression in the Central Nervous system (CNS) according to volumetric measurement (Freedman et al. 2011) and /or progression in non-Central Nervous System lesion Measured by RECIST 1.0
Time frame: 2 years
Population: all patients who received at least 1 dose of protocol therapy
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Sagopilone | Time to Progression at Any Site. | 1.4 months |