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Brain Metastasis in Breast Cancer Patients

22. maj 2014 opdateret af: GlaxoSmithKline

Occurrence of Brain Metastasis in Breast Cancer Patients Diagnosed at Advanced Stages of the Disease

The purpose of this epidemiologic study is to establish a population-based cohort of women with advanced stage breast cancer which can be used to quantify the frequency and timing of brain metastases, and other distant metastases, in this patient population.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

A retrospective cohort study will be conducted in the Henry Ford Health System (HFHS). Using medical record review, we will identify all women diagnosed with advanced stage (stage III and IV) breast cancer between January 1, 1995- December 31, 2007. For each case included in the study, we will obtain data on demographics, tumor information, treatment related medical encounters and procedures, and occurrence and timing of brain and/or other distant metastases. The main outcome for this study is the development of distant metastases. Each patient in the cohort will be classified as to the occurrence and date of distant metastases. Metastases will be classified as Brain, Distant lymph node, Lung/pleural effusion, Liver, Bone, Other visceral, Other non-visceral.

Other secondary outcomes to be explored include:

  • Survival after advanced breast cancer-time in months from the date of advanced stage breast cancer diagnosis until death or end of study period
  • Time to brain metastases-time in month from the date of advanced stage breast cancer diagnosis until brain metastases diagnosis
  • Survival after brain metastases-time in months from the date of diagnosis of brain metastases until death or end of study period

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

1

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

30 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

This study aims to retrospectively collect data on nearly 4,000 advanced breast cancer cases treated within the Henry Ford Health System

Beskrivelse

Inclusion Criteria:

  • Initially diagnosed with American Joint Commission on Cancer (AJCC) stage III or stage IV breast cancer between January 1, 1995 through December 31, 2007 -OR- diagnosed with AJCC stage I or II breast cancer and progressed to stage III or IV disease between January 1, 1995 through December 31, 2007;
  • At least one year of follow-up after initial diagnosis (among patients who did not die before one year of follow-up); and
  • Age 30 years or older at diagnosis.

Exclusion Criteria:

  • Does not have at least one year of follow-up after initial diagnosis (among patients who did not die before one year of follow-up); and
  • Age less than 30 years or older at diagnosis.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Women diagnosed with advanced breast cancer
Women diagnosed with advanced breast cancer during January 1, 1995-December 31, 2007 and treated as part of the Henry Ford Health System
Anti-erbB2 therapy for breast cancer treatment will be analyzed as a class level variable; individual drugs including trastuzumab and lapatinib will also be explored as exposures if sufficient numbers of patients exist.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Proportion of advanced stage breast cancer patients that develop brain metastases, overall and stratified by anti-HER2 therapy (for HER2+ patients only).
Tidsramme: Time from breast cancer diagnosis until death or end of study periods (September 1, 2009)
Time from breast cancer diagnosis until death or end of study periods (September 1, 2009)

Sekundære resultatmål

Resultatmål
Tidsramme
Overall survival from advanced stage breast cancer, overall and stratified by tumor characteristics and anti-HER2 therapy (for HER2+ patients only).
Tidsramme: Time from diagnosis of advanced stage breast cancer until death or end of study period (September 1, 2009)
Time from diagnosis of advanced stage breast cancer until death or end of study period (September 1, 2009)
Time to brain metastases stratified by key tumor characteristics and anti-HER2 therapy (for HER2+ patients only).
Tidsramme: Time from diagnosis of advanced stage breast cancer until brain metastases diagnosis
Time from diagnosis of advanced stage breast cancer until brain metastases diagnosis
Survival after brain metastases diagnosis, overall and stratified by key tumor characteristics and anti-HER2 therapy (for HER2+ patients only)
Tidsramme: Time from diagnosis of brain metastases until death or end of study period (September 1, 2009)
Time from diagnosis of brain metastases until death or end of study period (September 1, 2009)

Samarbejdspartnere og efterforskere

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

Sponsor

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. februar 2010

Primær færdiggørelse (Faktiske)

1. august 2013

Studieafslutning (Faktiske)

1. august 2013

Datoer for studieregistrering

Først indsendt

25. februar 2010

Først indsendt, der opfyldte QC-kriterier

25. februar 2010

Først opslået (Skøn)

1. marts 2010

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

26. maj 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. maj 2014

Sidst verificeret

1. maj 2014

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 112951

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