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Phase II Study of Fluorine-18 3'-Deoxy-3'-Fluorothymidine (F-18-FLT) in Invasive Breast Cancer

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00572728
First Posted: December 13, 2007
Last Update Posted: December 30, 2016
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.
Information provided by (Responsible Party):
National Cancer Institute (NCI)
  Purpose
This phase II trial studies how well 3'-deoxy-3'-18F fluorothymidine (18F-FLT) positron emission tomography (PET)/computed tomography (CT) works in predicting response in patients receiving chemotherapy and undergoing surgery for breast cancer that has spread from where it started to nearby tissue or lymph nodes. Diagnostic procedures, such as 18F-FLT PET/CT, may help in learning how well chemotherapy works to kill breast cancer cells before surgery and help doctors plan the best treatment.

Condition Intervention Phase
Stage IIB Breast Cancer Stage IIIA Breast Cancer Stage IIIB Breast Cancer Stage IIIC Breast Cancer Procedure: CT Drug: 18F-FLT Procedure: PET Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: 3'-Deoxy-3'-18F Fluorothymidine PET/CT in Predicting Response To Chemotherapy Before Surgery in Patients With Locally Advanced Breast Cancer

Resource links provided by NLM:


Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • %Change in FLT Uptake Between the Baseline (Pre-therapy) and the Early-therapy Imaging Studies to Predict Pathological Complete Response [ Time Frame: Baseline (FLT-1) to early therapy (5-10 days after chemotherapy, FLT-2) ]
    The primary statistical evaluation will be based on the percent change in FLT SUV60 between baseline (pre-therapy, FLT-1) and the early-therapy imaging (5-10 days after chemotherapy, FLT-2) studies


Secondary Outcome Measures:
  • Correlation Between SUVmax and Ki‐67 LI at FLT1(Baseline PET) [ Time Frame: Baseline (FLT-1) ]

    For the purposes of reporting, SUVmax @ FLT1 will be considered the outcome. the correlation is measured between the fraction of Ki-67-positive tumor cells (the Ki-67 labeling index) and SUVmax at FLT1 .

    Ki‐67 labeling index (LI) was calculated as the number of Ki‐67 positive tumor cells per one thousand tumor cells.


  • Correlation Between SUVmax and Ki‐67 LI at FLT3 (Post-NAC) [ Time Frame: Post-NAC (FLT3) ]
    For the purposes of reporting, SUVmax @ FLT-3 will be considered the outcome. correlation between the fraction of Ki-67-positive tumor cells (the Ki-67 labeling index) and SUVmax at FLT-3 Ki‐67 labeling index (LI) was calculated as the number of Ki‐67 positive tumor cells per one thousand tumor cells.

  • SUVmax at FLT-1 Comparison Between Residual Cancer Burden (RCB) 0/I and RCB II/III [ Time Frame: Baseline (FLT-1) ]

    While normally RCB (or other final determination) would be considered the outcome, since this is a predictive question, we will consider the Standardized Uptake Values the measurement of interest and report those values herein.

    Mean Standard Uptake Values (max) at Baseline (FLT-1) were compared for Participants with Residual Cancer Burden 0/I vs Residual Cancer Burden of II/III


  • SUVmax at FLT-2 Comparison Between Residual Cancer Burden (RCB) 0/I and RCB II/III [ Time Frame: early treatment (FLT2) ]

    While normally RCB (or other final determination) would be considered the outcome, since this is a predictive question, we will consider the uptake values the measurement of interest and report those values herein.

    Mean Standard Uptake Values (max) after one cycle of NAC (FLT2) were compared for Participants with Residual Cancer Burden (RCB) 0/I vs RCB II/III


  • SUVmax at FLT-3 Comparison Between Residual Cancer Burden (RCB) 0/I and RCB II/III [ Time Frame: post-NAC (FLT-3) ]
    The Standard Uptake Values (max) after completion of NAC (FLT-3) were compared for Participants with Residual Cancer Burden 0/I vs Residual Cancer Burden of II/III While normally RCB (or other final determination) would be considered the outcome, since this is a predictive question, we will consider the mean of the uptake values the measurement of interest and report those values herein.

  • Change in Uptake Between FLT1 and FLT3 to Predict Pathologic Complete Response (pCR) of the Primary Tumor [ Time Frame: Baseline (FLT-1) and post-NAC (FLT-3) ]

    To evaluate the relationship between the change in uptake between FLT1 and FLT3 and pathologic complete response, an ROC curve will be estimated and the area under the curve (AUC), along with its 90% confidence interval, will be determined. For the purposes of reporting, we will consider the percent change in uptake between FLT1 and FLT3 to be the outcome.

    Reported values in the Outcome Measure table represent Change in uptake between FLT1 and FLT3, i.e., percentage change of SUVmax. The relationship between the change in uptake between FLT1 and FLT3 and pathological complete response was assessed by using ROC analysis. The Area Under the ROC Curve is reported in the Statistical Analysis section


  • %Change SUVmax From FLT1‐FLT2 to Predict Lymph Node Status at Surgery [ Time Frame: Baseline (FLT-1) and Early Therapy (FLT-2) ]
    Reported values in the Outcome Measure table represent %Change in uptake between FLT1 and FLT2, i.e., percentage change of SUVmax. The relationship between the change in uptake between FLT1 and FLT2 and lymph node (LN) status. For the purposes of reporting, the % Change in SUV will be considered the outcome.

  • %Change SUVmax From FLT1‐FLT3 to Predict Lymph Node Status at Surgery [ Time Frame: Baseline (FLT-1) and post-NAC (FLT-3) ]
    %change in SUVmax from FLT1‐FLT3 will be compared by lymph node status at surgery For the purposes of reporting, %change in SUVmax from FLT1‐FLT3 will be consider the outcome.


Enrollment: 90
Study Start Date: December 2008
Study Completion Date: October 2014
Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Diagnostic (18F-FLT)
Patients undergo 18F-FLT PET /CT at baseline (prior to chemotherapy, FLT-1), early therapy (5-10 days after the initiation of the first course of chemotherapy, FLT-2), and post therapy (within 3 weeks prior to surgery, FLT-3). Patients undergo standard surgical resection of residual tumor following completion of neoadjuvant chemotherapy.
Procedure: CT
Undergo 18F-FLT PET/CT
Other Names:
  • CAT
  • CAT Scan
  • Computed Tomography
  • Computerized Axial Tomography
  • Computerized Tomography
  • CT SCAN
  • tomography
Drug: 18F-FLT
Undergo 18F-FLT PET/CT
Other Names:
  • Fluorothymidine F-18
  • 3'-deoxy-3'-(18F) fluorothymidine
  • 3'-deoxy-3'-[18F]fluorothymidine
  • fluorothymidine F 18
Procedure: PET
Undergo 18F-FLT PET/CT
Other Names:
  • Medical Imaging, Positron Emission Tomography
  • Positron Emission Tomography
  • PET SCAN
  • Positron Emission Tomography Scan
  • Positron-Emission Tomography
  • proton magnetic resonance spectroscopic imaging

Detailed Description:

PRIMARY OBJECTIVES:

I. To correlate the percentage change in standardized uptake value at 60 minutes (SUV60) between baseline (FLT-1) and early-therapy (FLT-2) with pathologic complete response to neoadjuvant chemotherapy of the primary tumor in patients with locally advanced breast cancer.

SECONDARY OBJECTIVES:

I. To demonstrate correlation between FLT-1 and post-therapy (FLT-3) uptake parameters and tumor proliferation markers in locally advanced breast cancer.

II. To evaluate the relationship between FLT-1, FLT-2 and FLT-3 uptake parameters and pathologic complete response of the primary tumor and residual cancer burden (RCB).

III. To evaluate the relationship between FLT-1, FLT-2 and FLT-3 uptake parameters and non-response of the primary tumor (stable or progressive disease) to therapy.

IV. To evaluate the relationship between FLT-1, FLT-2 and FLT-3 uptake parameters and pathologic complete response to neoadjuvant chemotherapy in patients with regional disease in the lymph nodes in patients with locally advanced breast cancer.

V. To compare the changes of FLT-2 and FLT-3 uptake parameters to changes in tumor sizes from other serial imaging modalities such as mammograms, magnetic resonance imaging (MRI), and ultrasound.

VI. To compare the changes of FLT-2 and FLT-3 uptake parameters to metabolic changes from [18F] fludeoxyglucose (FDG)-PET, as available.

VII. To continue to monitor for potential safety issues and define any physiologic effects associated with 18F FLT administration.

OUTLINE:

Patients undergo 18F-FLT PET/CT at baseline (prior to chemotherapy, FLT-1), early therapy (5-10 days after the initiation of the first course of chemotherapy, FLT-2), and post therapy (within 3 weeks prior to surgery, FLT-3). Patients undergo standard surgical resection of residual tumor following completion of neoadjuvant chemotherapy.

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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

Inclusion Criteria:

  • Pathologically confirmed breast cancer, determined to be a candidate for primary systemic (neoadjuvant) therapy and for surgical resection of residual primary tumor following completion of neoadjuvant therapy
  • Locally advanced breast cancer, not stage IV, and with a tumor size >= 2 cm (as measured on imaging or estimated by physical exam)
  • No obvious contraindications for primary chemotherapy
  • Residual tumor planned to be removed surgically following completion of neoadjuvant therapy
  • Able to lie still for 1.5 hours for PET scanning
  • Eastern Cooperative Oncology Group (ECOG) performance status =< 2 (Karnofsky >= 60%)
  • Leukocytes >= 3,000/ul
  • Absolute neutrophil count >= 1,500/ul
  • Platelets >= 100,000/ul
  • Total bilirubin within normal institutional limits
  • Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 times the institutional upper limit of normal
  • Creatinine within normal institutional limits OR creatinine clearance >= 30 mL/min/1.73 m^2 for patients with creatinine levels above institutional normal
  • If female, postmenopausal for a minimum of one year, OR surgically sterile, OR not pregnant, confirmed by institutional standard of care (SOC) pregnancy test, and willing to use adequate contraception (hormonal or barrier method of birth control; abstinence) for the duration of study participation
  • Able to understand and willing to sign a written informed consent document and a Health Insurance Portability and Accountability Act (HIPAA) authorization in accordance with institutional guidelines

Exclusion Criteria:

  • Previous treatment (chemotherapy, radiation, or surgery) to involved breast; including hormone therapy
  • 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
  • Medically unstable
  • Condition requiring anesthesia for PET scanning and/or unable to lie still for 1.5 hours
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to F-18 fluorothymidine
  • Pregnant or nursing
  • Previous malignancy, other than basal cell or squamous cell carcinoma of the skin or in situ carcinoma of the cervix, from which the patient has been disease free for less than 5 years
  • Currently on hormone therapy as the primary systemic neoadjuvant therapy
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT00572728


  Show 27 Study Locations
Sponsors and Collaborators
National Cancer Institute (NCI)
Investigators
Principal Investigator: Lale Kostakoglu American College of Radiology Imaging Network
  More Information

Additional Information:
Publications:
Responsible Party: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT00572728     History of Changes
Obsolete Identifiers: NCT00566293
Other Study ID Numbers: NCI-2009-00266
NCI-2009-00266 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
ACRIN 6688 ( Other Identifier: American College of Radiology Imaging Network )
8029 ( Other Identifier: CTEP )
N01CM27165 ( Other Identifier: US NIH Grant/Contract Award Number )
First Submitted: December 11, 2007
First Posted: December 13, 2007
Results First Submitted: March 18, 2015
Results First Posted: January 20, 2016
Last Update Posted: December 30, 2016
Last Verified: December 2016

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases
Alovudine
Dideoxynucleosides
Antiviral Agents
Anti-Infective Agents
Antimetabolites
Molecular Mechanisms of Pharmacological Action
Reverse Transcriptase Inhibitors
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Anti-Retroviral Agents