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Serum Proteomics to Predict Gemcitabine Sensitivity in Breast Cancer

10. december 2013 opdateret af: 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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

30

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Singapore
      • Singapore, Singapore
        • National University Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Hvad måler undersøgelsen?

Primære resultatmål

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

Sekundære resultatmål

Resultatmål
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.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

National University Hospital, Singapore

Efterforskere

  • Ledende efterforsker: Soo-Chin Lee, MD, Consultant

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. marts 2004

Primær færdiggørelse (Faktiske)

1. marts 2013

Studieafslutning (Faktiske)

1. april 2013

Datoer for studieregistrering

Først indsendt

13. september 2005

Først indsendt, der opfyldte QC-kriterier

13. september 2005

Først opslået (Skøn)

21. september 2005

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

11. december 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. december 2013

Sidst verificeret

1. december 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • BR01/12/03

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Metastatisk brystkræft

Kliniske forsøg med gemcitabine, carboplatin

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Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Colombia

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

3
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