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Imatinib Mesylate in Treating Patients With Metastatic Breast Cancer

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: NCT00045188
Recruitment Status : Completed
First Posted : January 27, 2003
Last Update Posted : January 23, 2013
Information provided by (Responsible Party):
National Cancer Institute (NCI)

Brief Summary:
Phase II trial to study the effectiveness of imatinib mesylate in treating patients who have metastatic breast cancer. Imatinib mesylate may stop the growth of cancer by blocking the enzymes necessary for tumor cell growth

Condition or disease Intervention/treatment Phase
Male Breast Cancer Recurrent Breast Cancer Stage IV Breast Cancer Drug: imatinib mesylate Other: laboratory biomarker analysis Phase 2

Detailed Description:


I. To determine the efficacy of STI571 in metastatic breast cancer (MBC) that demonstrates expression of CD117 (c-kit) and/ or PDGFR.


I. To determine the clinical activity of STI571 in MBC with expression of CD117 (ckit) and/ or PDGFR by evaluating progression-free survival (PFS).

II. To determine the toxicity profile and tolerability of STI571 in patients with MBC.

III. To define serum, tissue and imaging surrogate endpoints of activity of STI571 in MBC.


Patients receive oral imatinib mesylate twice daily. Treatment continues for at least 8 weeks in the absence of disease progression or unacceptable toxicity.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 35 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase II Trial of STI571 in Metastatic Breast Cancer
Study Start Date : August 2002
Actual Primary Completion Date : July 2004

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Breast Cancer

Arm Intervention/treatment
Experimental: Treatment (imatinib mesylate)
Patients receive oral imatinib mesylate twice daily. Treatment continues for at least 8 weeks in the absence of disease progression or unacceptable toxicity.
Drug: imatinib mesylate
Given PO
Other Names:
  • CGP 57148
  • Gleevec
  • Glivec

Other: laboratory biomarker analysis
Optional correlative studies

Primary Outcome Measures :
  1. Objective tumor response (CR + PR), as determined by the RECIST criteria [ Time Frame: Up to 2 years ]

Secondary Outcome Measures :
  1. Incidence of adverse events [ Time Frame: Up to 2 years ]
  2. Time to progression [ Time Frame: Up to 2 years ]
    Reported using the Kaplan-Meier method with 95% confidence intervals indicated.

  3. Overall survival [ Time Frame: Up to 2 years ]
    Reported using the Kaplan-Meier method with 95% confidence intervals indicated.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Histologically or cytologically confirmed metastatic breast cancer
  • Documented expression of CD117 (c-kit) or platelet-derived growth factor receptor

    • Adequate tumor tissue from either the primary tumor and/or metastatic disease available for evaluation
  • Must have received prior chemotherapy with an anthracycline (doxorubicin or epirubicin) and/or taxane (paclitaxel or docetaxel) as adjuvant or for advanced disease
  • At least 1 unidimensionally measurable lesion

    • At least 20 mm by conventional techniques OR at least 10 mm by spiral CT scan
    • Bone disease may not be only source of measurable disease
    • Pleural or peritoneal ascites are not considered measurable disease
  • No known brain metastases
  • Hormone receptor status:

    • Not specified
  • Female or male
  • Not specified
  • Performance status - ECOG 0-2
  • Performance status - Karnofsky 60-100%
  • More than 12 weeks
  • Absolute neutrophil count at least 1,500/mm^3
  • WBC at least 3,000/mm^3
  • Platelet count at least 100,000/mm^3
  • Bilirubin normal
  • AST or ALT no greater than 2.5 times upper limit of normal
  • Creatinine normal
  • Creatinine clearance at least 60 mL/min
  • No symptomatic congestive heart failure
  • No unstable angina pectoris
  • No cardiac arrhythmia
  • No other uncontrolled concurrent illness
  • No ongoing or active infection
  • No prior allergic reaction attributed to compounds of similar chemical or biologic composition to imatinib mesylate
  • No other malignancy within the past 5 years except basal cell skin cancer or carcinoma in situ of the cervix
  • No psychiatric illness or social situation that would preclude study compliance
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective barrier contraception during and for 1 week after study
  • No concurrent biologic agents
  • No more than 2 prior chemotherapy regimens for metastatic disease

    • Therapy with high-dose regimens or bone marrow transplantation considered 1 regimen
  • At least 4 weeks since prior chemotherapy (6 weeks for carmustine or mitomycin) and recovered
  • No concurrent chemotherapy
  • Prior hormonal therapy for stage IV disease and/or as adjuvant therapy allowed
  • At least 4 weeks since prior radiotherapy and recovered
  • Prior localized radiotherapy that does not influence the signal of the evaluable lesion is allowed
  • At least 2 weeks since prior minor surgery
  • At least 4 weeks since prior major surgery
  • Recovered from prior surgery
  • Low-molecular weight heparin or heparin allowed for anticoagulation
  • No concurrent warfarin
  • No concurrent combination antiretroviral therapy for HIV-positive patients
  • No concurrent investigational therapies or agents
  • No other concurrent anticancer therapy
  • No concurrent intake of cola, orange juice, grapefruit, or orange or grapefruit sections

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): NCT00045188

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United States, Texas
M D Anderson Cancer Center
Houston, Texas, United States, 77030
Sponsors and Collaborators
National Cancer Institute (NCI)
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Principal Investigator: Massimo Cristofanilli M.D. Anderson Cancer Center
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Responsible Party: National Cancer Institute (NCI) Identifier: NCT00045188    
Other Study ID Numbers: NCI-2012-02491
N01CM17003 ( U.S. NIH Grant/Contract )
CDR0000256915 ( Registry Identifier: PDQ (Physician Data Query) )
First Posted: January 27, 2003    Key Record Dates
Last Update Posted: January 23, 2013
Last Verified: January 2013
Additional relevant MeSH terms:
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Breast Neoplasms
Breast Neoplasms, Male
Neoplasms by Site
Breast Diseases
Skin Diseases
Imatinib Mesylate
Antineoplastic Agents
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action