Serum Proteomics to Predict Gemcitabine Sensitivity in Breast Cancer

December 10, 2013 updated by: National University Hospital, Singapore

Serum Protein Profiling as a Predictor of Gemcitabine Sensitivity in Breast Cancer With Prior Exposure to Anthracyclines and Taxanes

Tumors are heterogeneous with varying response to chemotherapeutic agents. We hypothesize that tumors that are sensitive to a particular chemotherapeutic agent have a distinctive tumor protein profile compared to those that are resistant. We further hypothesize that since tumor is continuously perfused by serum, serum protein profile can be used as a surrogate marker of tumor protein profile. The primary objective of this study is to identify a serum protein profile that predicts gemcitabine/carboplatin sensitivity or resistance in breast cancer patients with prior exposure to anthracyclines and taxanes. Secondary objectives are to establish the serum protein profile of breast cancer patients who have had prior exposure to anthracyclines and taxanes, and to study the pharmacogenetics of gemcitabine toxicity by correlating germline genotype of transporters and drug metabolizing enzymes with plasma and intracellular gemcitabine pharmacokinetics.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Metastatic breast cancer patients previously treated with anthracyclines and taxanes will be treated with gemcitabine and carboplatin every 3 weeks. Serial plasma samples will be collected for proteomics profiling with SELDI-MS that will be correlated with tumor response to identify biomarkers that may predict for chemotherapy sensitivity.

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Singapore
      • Singapore, Singapore
        • National University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Female, age >= 18 years.
  • Histologic or cytologic diagnosis of breast carcinoma.
  • Stage IV breast cancer with prior exposure to anthracyclines and taxanes, either in the neoadjuvant, adjuvant or metastatic setting.
  • Presence of at least one uni-dimensionally measurable, non-CNS indicator lesion defined by radiologic study or physical examination
  • For patients with previous radiotherapy, the indicator lesion(s) must not be within the previous radiation field. The last dose of radiotherapy should be at least 3 weeks prior to study entry. The total radiotherapy received should not be more than 30% of the bone marrow.
  • Karnofsky performance status of 70 or higher.
  • Estimated life expectancy of at least 12 weeks.

  • Adequate organ function including the following:

    - Bone marrow: White blood cells (WBC) >= 3.5 x 109/L Absolute neutrophil (segmented and bands) count (ANC) >= 1.5 x 109/L Platelets >= 100 x 109/L Haemoglobin >= 9g/dL

    - Hepatic: Bilirubin <= 1.5 x upper limit of normal (ULN), ALT or AST <= 2.5x ULN, (or <5 X with liver metastases) Alkaline phosphatase <= 2.5x ULN.

    - Renal: Creatinine clearance >30ml/minute, based on the Cockcroft formula

  • Signed informed consent from patient or legal representative.
  • Patients with reproductive potential must use an approved contraceptive method if appropriate (eg, intrauterine device, birth control pills, or barrier device) during and for three months after the study. Females with childbearing potential must have a negative serum pregnancy test within 7 days prior to study enrollment.

Exclusion Criteria:

  • Treatment within the last 30 days with any investigational drug.
  • Concurrent administration of any other tumor therapy, including cytotoxic chemotherapy, hormonal therapy, and immunotherapy.
  • Active infection that in the opinion of the investigator would compromise the patient's ability to tolerate therapy.
  • Pregnancy.
  • Breast feeding.
  • Serious concomitant disorders that would compromise the safety of the patient or compromise the patient's ability to complete the study, at the discretion of the investigator.
  • Second primary malignancy that is clinically detectable at the time of consideration for study enrollment.
  • Symptomatic brain metastasis.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
To identify a serum protein profile that predicts gemcitabine/carboplatin sensitivity or resistance in breast cancer patients with prior exposure to anthracyclines and taxanes.

Secondary Outcome Measures

Outcome Measure
a. To establish the serum protein profile of breast cancer patients who have had prior exposure to anthracyclines and taxanes.
b. To study the pharmacogenetics of gemcitabine toxicity by correlating germline genotype of transporters and drug metabolizing enzymes with plasma and intracellular gemcitabine pharmacokinetics.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National University Hospital, Singapore

Investigators

  • Principal Investigator: Soo-Chin Lee, MD, Consultant

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2004

Primary Completion (Actual)

March 1, 2013

Study Completion (Actual)

April 1, 2013

Study Registration Dates

First Submitted

September 13, 2005

First Submitted That Met QC Criteria

September 13, 2005

First Posted (Estimate)

September 21, 2005

Study Record Updates

Last Update Posted (Estimate)

December 11, 2013

Last Update Submitted That Met QC Criteria

December 10, 2013

Last Verified

December 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • BR01/12/03

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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