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Clinical and Biological Study of Early-onset Breast Cancer and the Influence of the Reproductive Cycle on the Aggressiveness of the Disease (ARTEMIS)

20. maj 2026 opdateret af: Institut Cancerologie de l'Ouest

The incidence of breast cancer is increasing, particularly among young women. Cancers in young women are associated with a poor prognosis. The causes remain poorly understood.

Among young patients, some are nulliparous and others have reported cancer during or after pregnancy. Preliminary studies suggest that breast tissue remodeling associated with pregnancy may influence the emergence and aggressiveness of early-onset cancers. However, breastfeeding and pregnancy are described as protective factors against the onset of breast cancer. The precise biology depending on age and the time between pregnancy and breast cancer is still poorly understood.

The aim of our study is to increase our knowledge of cancer in young women and its potential links to pregnancy and breastfeeding. Information on the contraceptive habits and pregnancies of the patients in the study will be collected, and molecular and cellular analyses will be performed on frozen tumor samples as well as samples fixed and embedded in paraffin.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Anslået)

1000

Kontakter og lokationer

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

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Frankrig
      • Saint-Herblain, Frankrig, 44800
        • Institut de Cancérologie de l'Ouest
        • Kontakt:
        • Ledende efterforsker:
          • Marie ROBERT, MD

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

  • Barn
  • Voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients with triple-negative (TN) or RH+ breast cancer treated at the ICO who were ≤ 45 years old or ≥ 55 years old at the time of diagnosis.

Beskrivelse

Inclusion Criteria:

  • Triple-negative breast cancer or RH+/HER2-
  • Patient aged ≤ 45 years at the time of diagnosis ou Patient aged ≥ 55 years at the time of diagnosis

Exclusion Criteria:

  • Availability of a diagnostic tumor sample

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
Patient aged ≤ 45 years at diagnosis Triple-negative breast cancer
Andet: Ingen intervention: Observationskohorte
Ingen indgriben
Patient aged ≤ 45 years at diagnosis RH+ breast cancer
Andet: Ingen intervention: Observationskohorte
Ingen indgriben
Patient aged ≥ 55 years at diagnosis Triple-negative breast cancer
Andet: Ingen intervention: Observationskohorte
Ingen indgriben
Patient aged ≥ 55 years at diagnosis RH+ breast cancer
Andet: Ingen intervention: Observationskohorte
Ingen indgriben

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
event-free survival
Tidsramme: up to 5 years
event-free survival (time between diagnosis and the occurrence of the first event among the following: local recurrence, metastatic recurrence, death)
up to 5 years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Describe the association between age at diagnosis and event-free survival (EFS) and overall survival.
Tidsramme: up to 5 years
Describe the association between age at diagnosis and event-free survival (EFS) and overall survival (time between diagnosis and death from all causes. Two overall survival rates will be calculated from two data sources: ICO data and INSEE data)
up to 5 years
Describe the association between previous pregnancy and overall survival according to age at diagnosis (≤45 years or ≥55 years).
Tidsramme: Up to 5 years
Describe the association between previous pregnancy and overall survival according to age at diagnosis (≤45 years or ≥55 years). (Overall survival: time between diagnosis and death from all causes. Two overall survival rates will be calculated from two data sources: ICO data and INSEE data)
Up to 5 years
Describe the association between breastfeeding and EFS/overall survival in nulliparous women according to age at diagnosis (≤45 years or ≥55 years).
Tidsramme: Up to 5 years
Describe the association between breastfeeding and EFS/overall survival in nulliparous women according to age at diagnosis (≤45 years or ≥55 years).(Overall survival: time between diagnosis and death from all causes. Two overall survival rates will be calculated from two data sources: ICO data and INSEE data)
Up to 5 years
Describe the association between age at first pregnancy (≥35 years, ≤35 years, nulliparity) and EFS/overall survival according to age at diagnosis (≤45 years or ≥55 years).
Tidsramme: Up to 5 years
Describe the association between age at first pregnancy (≥35 years, ≤35 years, nulliparity) and EFS/overall survival according to age at diagnosis (≤45 years or ≥55 years).(Overall survival: time between diagnosis and death from all causes. Two overall survival rates will be calculated from two data sources: ICO data and INSEE data)
Up to 5 years

Samarbejdspartnere og efterforskere

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

Sponsor

Institut Cancerologie de l'Ouest

Efterforskere

  • Ledende efterforsker: Marie ROBERT, MD, Institut de Cancérologie de l'Ouest

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 (Anslået)

1. maj 2026

Primær færdiggørelse (Anslået)

1. september 2026

Studieafslutning (Anslået)

1. februar 2031

Datoer for studieregistrering

Først indsendt

12. februar 2026

Først indsendt, der opfyldte QC-kriterier

20. maj 2026

Først opslået (Faktiske)

22. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

22. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

20. maj 2026

Sidst verificeret

1. april 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • ICO-2024-25
  • 2025-A02135-4 (Anden identifikator: INSTITUT DE CANCEROLOGIE DE L'OUEST)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

The anonymized individual participant data used in the primary analysis of the study will be made available. This includes the main manuscript and its supplementary materials (texts, tables, figures, and appendices).

IPD-delingstidsramme

The data will be accessible from 6 months after the publication of the main article, and for up to 3 years after this publication.

IPD-delingsadgangskriterier

Access will be granted to researchers submitting a methodologically sound proposal that does not duplicate the secondary analyses planned by the research team.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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 Brystkræft

Kliniske forsøg med Ingen intervention: Observationskohorte

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Sponsorer og samarbejdspartnere

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Betingelser

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Kosttilskud

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