Efficacy Study of Dasatinib in Locally Advanced Triple-Negative Breast Cancer Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00817531
Recruitment Status : Terminated (terminated due to futility after interim analysis)
First Posted : January 6, 2009
Results First Posted : July 17, 2012
Last Update Posted : August 31, 2012
M.D. Anderson Cancer Center
Information provided by (Responsible Party):
Baylor Breast Care Center

Brief Summary:

We want to learn if dasatinib will make triple negative breast cancers smaller. We also hope that we can learn more about what makes triple negative breast cancers grow. We believe this information will help us to predict which patients will benefit from taking this drug or other drugs like it.

This study is a "neoadjuvant study", which means that it is only open to women who have not had any treatment for their breast cancer. Neoadjuvant studies allow the study doctor to look at how the cells in your cancer change after taking the study medication. This will help us to understand whether or not dasatinib is an effective treatment for breast cancer. It will also help us to learn more about triple negative breast cancer and how to treat it.

Condition or disease Intervention/treatment Phase
Breast Cancer Drug: Dasatinib Phase 2

Detailed Description:

Women who have been recently diagnosed with a type of breast cancer called "triple negative", and have not yet received any type of treatment (surgery, radiation therapy, etc.) for breast cancer are among the patient population this study will seek. "Triple negative" means breast cancer is not estrogen receptor positive (ER+), progesterone receptor positive (PgR+) or human epidermal growth factor receptor positive (HER2+). Some types of breast cancers "overexpress" one or more of these receptors. "Overexpress" means that the cancer cells have too many of these receptors. ER and PgR are hormone receptors that are located on some types of breast cancer cells. When these receptors are present, the hormones estrogen and progesterone are able to tell cancer cells to grow and divide.

This kind of breast cancer does not have an over-production (overexpression) of these three receptors, and that is why we call it "triple-negative" breast cancer.

We are trying to find new and better treatments for women with triple negative breast cancer. We do not know what causes triple negative breast cancers to grow. Other research studies have shown that "triple negative" breast cancers overexpress different types of receptors. These receptors might help the cancer to grow.

We will be testing a drug called dasatinib. Dasatinib is a drug that is made by Bristol-Myers Squibb. It is sold under the name of Sprycel. It was first used to treat patients with leukemia, a type of blood cancer.

Dasatinib interferes with the growth of some cancers. Dasatinib attaches to the cancer cell and slows down or stops the cancer cell from growing. It is approved by the Food and Drug Administration (FDA), but not for the kind of cancer that you have been diagnosed with.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 22 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Biologic Efficacy Study of Dasatinib, a Multi-Targeted Tyrosine Kinase, in Locally Advanced Triple-Negative Breast Cancer Patients Developing Effective Therapies for Er-Negative Breast Cancer Using Genomics and Proteomics: Project 3
Study Start Date : December 2008
Actual Primary Completion Date : February 2011
Actual Study Completion Date : February 2011

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Breast Cancer
Drug Information available for: Dasatinib

Arm Intervention/treatment
Experimental: All subjects take open label Dasatinib
Dasatinib / Sprycel 100 mg
Drug: Dasatinib
pill form, 100 mg daily
Other Name: Sprycel

Primary Outcome Measures :
  1. Clinical Efficacy [ Time Frame: Assessment at pre-surgery or 3 to 4 weeks of treatment. ]
    The clinical response was assessed using RECIST and based on the changes in the longest diameter of the target lesion measured. Complete Response (CR), Disappearance of the target lesion; Partial Response (PR), >=30% decrease in the diameter of target lesion compared to baseline; Progressive disease (PD), >= 20% increase in the diameter of target lession, taking as reference the smallest diameter recorded since the baseline measurement or the appearance of new lesion; Stable disease (SD), neither sufficient shrinkage as PR or sufficient increase as PD.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Women diagnosed with triple negative breast cancer (breast cancer is not estrogen receptor positive (ER+), progesterone receptor positive (PgR+) or human epidermal growth factor receptor positive (HER2+)

    1. Clinical stage II or stage III invasive mammary carcinoma, confirmed by histological analysis, as defined in the study protocol.
    2. Subject's age must be greater than or equal to 18 years.
    3. ECOG Performance Status of 0-1.
    4. Subjects must have measurable* tumor at the primary site. *Measurable disease is defined as follows: Any mass that can be reproducibly measured by physical examination, mammogram, and/or ultrasound and can be accurately measured in at least one dimension (longest diameter to be recorded) as 10 mm (1 cm).
    5. No history of prior chemotherapy for primary breast cancer.
    6. Patients with a prior history of contralateral breast cancer are eligible if they have no evidence of recurrence of their initial primary breast cancer within the past 5 years.
    7. Women may have been taking tamoxifen or raloxifene as a preventive agent prior to study entry but must have discontinued the drug for at least 21 days prior to study enrollment.
    8. Adequate organ function, as defined by the following: a) Total bilirubin < 2.0 times the institutional Upper Limit of Normal (ULN) b) Hepatic enzymes (AST, ALT ) ≤ 2.5 times the institutional ULN c) Serum sodium, potassium, magnesium, phosphate, and calcium levels greater than or equal to the Lower Limit of Normal (LLN). d) Serum Creatinine < 1.5 time the institutional ULN e) Hemoglobin, Neutrophil count, Platelets, PT, PTT all Grade 0-1, as defined by the NCI CTCAE v3.0.
    9. Ability to swallow and retain oral medications (dasatinib must be swallowed whole).
    10. Subject must not be taking any prohibited medications, as defined in Section 6.5 of the study protocol.
    11. Women of childbearing potential (WOCBP) must have a negative serum or urine pregnancy test (sensitivity < 25 IU/L) within 72 hours prior to beginning study medication.
    12. WOCBP must agree to utilize an adequate method of contraception throughout treatment, and for at least 4 weeks after stopping study medication. 13. Signed, written informed consent, including a HIPAA form, as per institutional guidelines.

Exclusion Criteria:

  1. Locally recurrent breast cancer.
  2. History of prior chemotherapy for breast cancer.
  3. History of malignancy requiring radiotherapy or systemic treatment within the past 5 years.
  4. Presence of any concurrent medical condition that would increase the risk of toxicity, including the following: •Pleural or pericardial effusion of any grade •Uncontrolled angina •Congestive heart failure •Myocardial infarction within the past 6 months •Diagnosed congenital long QT syndrome •Any history of clinical significant ventricular arrhythmias (such as ventricular tachycardia, ventricular fibrillation, or Torsades de pointes) •Prolonged QTc interval (> 450 ms) on pre-study ECG •Uncorrectable hypokalemia or hypomagnesia •Significant bleeding disorder unrelated to cancer, including: - History of congenital bleeding disorders (e.g. von Willebrand's disease) - Acquired bleeding disorder that has been diagnosed within the past year (e.g. acquired anti-factor VIII antibodies) - Ongoing or recent (less than or equal to 3 months) significant gastrointestinal bleeding.
  5. Subjects taking any prohibited medications will be excluded from study, as defined in Section 6.5 of the study protocol.
  6. WOCBP who are pregnant or breastfeeding or who are unwilling to use an acceptable method of contraception for the duration of study therapy and for at least 4 weeks after cessation of study drug.
  7. Active or uncontrolled infection.
  8. Dementia, altered mental status, or any psychiatric condition that would prohibit the understanding or rendering of informed consent.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00817531

United States, Texas
Baylor College of Medicine, Lester and Sue Smith Breast Center
Houston, Texas, United States, 77030
Sponsors and Collaborators
Baylor Breast Care Center
M.D. Anderson Cancer Center
Principal Investigator: Mothaffar Rimawi, MD Baylor College of Medicine

Responsible Party: Baylor Breast Care Center Identifier: NCT00817531     History of Changes
Other Study ID Numbers: H 21592
First Posted: January 6, 2009    Key Record Dates
Results First Posted: July 17, 2012
Last Update Posted: August 31, 2012
Last Verified: August 2012

Keywords provided by Baylor Breast Care Center:
Breast Cancer

Additional relevant MeSH terms:
Breast Neoplasms
Triple Negative Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases
Antineoplastic Agents
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action