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18F-FLT Positron Emission Tomography and Magnetic Resonance Imaging of the Breast

13. oktober 2013 opdateret af: National Taiwan University Hospital

Integrative Diagnosis of 18F-FLT Positron Emission Tomography and Magnetic Resonance Imaging to Evaluate the Suspicious Findings on Mammography and Breast Ultrasound: a Pilot Study

This prospective study is aimed to evaluate the diagnostic effectiveness of 18F-FLT PET in differentiating benign nature from malignancy for lesions with suspicious or ambiguous findings on mammography or ultrasound; to determine whether 18F-FLT PET or MRI can increase the specificity in breast lesion diagnosis and thus reduce the unnecessary biopsy, and which (18F-FLT PET or MRI) reveals the higher diagnostic performance.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

It has been reported that PET (Positron Emission Tomography) scan is also useful in diagnosing breast cancer. 18F-fluorodeoxyglucose (18F-FDG), which based on glucose metabolism for the determination of malignancy, is the most popular PET tracer at present. However, 18F-FDG is not tumor specific. Benign inflammatory lesions may also demonstrate increase in 18F-FDG uptake. On the other hand, low grade malignancy may have low 18F-FDG concentration. Recently, 18F-3'-fluoro-3'-deoxy-L-thymidine (18F-FLT), a radiolabelled analog of thymidine, has been used in imaging cell proliferation and monitoring of treatment effects for breast cancer patients. 18F-FLT is believed to be more specific than 18F-FDG for breast cancer diagnosis and may provide the underlined physiological and molecular manifestations of breast lesions in addition to anatomical manifestations from mammography, ultrasound or MRI. Yet, its potential role in differentiation of ambiguous or suspicious lesions found on conventional imaging, such like mammography or ultrasound, has not been reported. We have had an ongoing preliminary study regarding breast lesion diagnosis using 18F-FLT PET, with an overall sensitivity 100% and specificity 92.7% in this dataset (from 2010 August to 2010 December, 19 lesions from 8 women with correlation with biopsy and clinical outcome).

On the other hand, the molecular subtypes of breast cancer, including ER (Estrogen receptor), PR (Progesterone receptor), HER2 (Human epidermal growth factor receptor 2) are associated with treatment planning and prediction of clinical outcome of breast cancer. There have been documented reports regarding the relation of mammography, DCE MRI, 18F-FDG PET to ER, PR, HER2 status of breast cancers. But the association of proton MRS, DWI and 18F-FLT PET with ER, PR, HER2 status was seldom reported.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

80

Fase

  • Fase 4

Kontakter og lokationer

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

Studiesteder

  • Taiwan
      • Taipei, Taiwan, 100
        • Rekruttering
        • National Taiwan University Hospital
        • Kontakt:
        • Ledende efterforsker:
          • Jane Wang, PhD

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

20 år til 80 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

Inclusion Criteria:

  • 1) Women aged between 20 to 80 years 2) women who have localized findings on mammography and / or ultrasound and will receive biopsy 3) The lesions on the conventional imaging measure >=1cm 4) WBC count >=3000/L, or platelet>=75,000/L 5) Liver function, AST or ALT <78 U/L 6) Renal function, Creatinine <2.0 mg/dl., and estimated GFR(eGFR)>60ml/min/1.73m2.

Exclusion Criteria:

  • 1) Pregnant women or who are planning to be pregnant, or who are lactating. (Eligible women who are premenopausal with reproductive potential should receive urine pregnancy test before the MRI and PET. Women with a positive pregnancy test should be excluded from the study.) 2) Known cancers in other organs. 3) Women who are not able to cooperate with the PET/CT examination, or MRI examination.

    4) Women≦19 years old. 5) Past history of severe anaphylactoid reaction to MRI-contrast agent or 18F-FLT.

    6) History of mechanical valve replacement, recent coronary artery stent placement, with pacemaker, aneurysmal clip, metallic endotracheal tube, or other procedures with metallic device application.

    7) eGFR≦60ml/min/1.73m2. 8) History of acute renal failure, or renal dialysis.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Diagnostisk
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: diagnostic accuracy
diagnostic accuracy of PET and MRI for breast cancer diagnosis.
Medicin: PET
18F-FLT PET and MRI of the breast
Andre navne:
  • 3'-deoxy-3'-[18F]fluorothymidine PET

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
diagnostic accuracy of 18F-FLT PET and MRI
Tidsramme: 5 years
to measure diagnostic accuracy (sensitivity, specificity) of 18F-FLT PET and MRI for localized breast findings seen on mammography and breast ultrasound.
5 years

Samarbejdspartnere og efterforskere

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

Sponsor

National Taiwan University Hospital

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. juni 2011

Primær færdiggørelse (Forventet)

1. december 2015

Studieafslutning (Forventet)

1. marts 2016

Datoer for studieregistrering

Først indsendt

24. september 2013

Først indsendt, der opfyldte QC-kriterier

29. september 2013

Først opslået (Skøn)

8. oktober 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

16. oktober 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

13. oktober 2013

Sidst verificeret

1. oktober 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • 201102011MB

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 .

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Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in China

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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