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Ultrasound Screening for Early Detection of Breast Cancer in Elderly Women: A Mixed Cluster-Individual RCT

12. juli 2026 opdateret af: Qiang Ding, The First Affiliated Hospital with Nanjing Medical University

A Multicenter, Open-label, Mixed Cluster-Individual Randomized Controlled Study on the Efficacy of Breast Cancer Ultrasound Screening

This multicenter study aims to evaluate whether active breast ultrasound screening can improve the early diagnosis rate of breast cancer in women aged 65 to 80 years, compared with routine elderly health management. The study uses a mixed cluster-individual randomized design based on community implementation capacity. A subgroup of pilot communities will simultaneously collect ultrasound AI data for research performance analysis only, without affecting clinical diagnosis.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is a multicenter, open-label, mixed cluster-individual randomized controlled trial conducted in Jiangsu Province, China. A total of 82,440 elderly women aged 65-80 years will be enrolled and assigned to either the ultrasound active screening group or the routine health management group. Communities with limited screening capacity will be randomized as clusters, while communities with individual screening conditions will randomize participants individually.

The primary endpoint is the absolute difference in the diagnosis rate of early-stage breast cancer between the two groups within 2 years of follow-up. In pilot communities of the screening group, an ultrasound AI system will be deployed synchronously to verify its diagnostic performance, homogenization effect on primary care physicians, and health economic value. All clinical diagnosis and endpoint adjudication are based on manual ultrasound reports; AI results are only used for retrospective scientific research and do not interfere with clinical decision-making.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

82440

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

  • Navn: Ge Ma, doctor
  • Telefonnummer: +8618262632870
  • E-mail: ntmage@sina.com

Studiesteder

  • Kina
    • Jiangsu
      • Kunshan, Jiangsu, Kina
        • Kunshan First People's Hospital
        • Kontakt:
          • Qin Zhou, doctor
          • Telefonnummer: +86-18626179180
          • E-mail: 4527472@qq.com

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

  • Ældre voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Female participants aged 65-80 years.
  • Local residents living in participating communities for ≥6 months.
  • Signed informed consent and willingness to participate.

Exclusion Criteria:

  • History of breast cancer or previous breast cancer treatment.
  • Breast cancer screening within the past 2 years.
  • Severe comorbid conditions that may affect study participation or follow-up.
  • Acute breast disease or conditions requiring immediate treatment.
  • Unable to cooperate with screening procedures due to physical or cognitive limitations.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Screening
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Ultrasound Active Screening Group
Participants receive one standardized breast ultrasound examination performed by certified primary care physicians during annual health check-ups. In selected pilot communities, an ultrasound AI system is deployed synchronously for image data collection and retrospective scientific analysis only; AI results do not affect clinical diagnosis or report issuance.
Procedure: Standardized Breast Ultrasound Screening
Retrospective AI image analysis for research use only, not involved in clinical decision-making.
Ingen indgriben: Routine Health Management Group
Participants receive conventional community health management and annual physical examination according to local routine practice, without study-specific breast ultrasound screening.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Absolute difference in early-stage breast cancer diagnosis rate
Tidsramme: 24 months after enrollment
Proportion of pathologically confirmed breast cancer cases at stage I or stage II, compared between the ultrasound screening group and the routine management group within 2-year follow-up.
24 months after enrollment

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overall breast cancer detection rate
Tidsramme: 24 months
Overall breast cancer detection rate
24 months

Samarbejdspartnere og efterforskere

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

Sponsor

The First Affiliated Hospital with Nanjing Medical University

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)

10. juli 2026

Primær færdiggørelse (Anslået)

10. juli 2029

Studieafslutning (Anslået)

31. december 2029

Datoer for studieregistrering

Først indsendt

8. juli 2026

Først indsendt, der opfyldte QC-kriterier

8. juli 2026

Først opslået (Faktiske)

13. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

14. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • JS-BC-Elder-Screen-2026
  • 2024ZD0524000 (Andet bevillings-/finansieringsnummer: Noncommunicable Chronic Diseases-National Science and Technology Major Project)
  • 2024ZD0524004 (Andet bevillings-/finansieringsnummer: Noncommunicable Chronic Diseases-National Science and Technology Major Project)
  • 2025ZD0545404 (Andet bevillings-/finansieringsnummer: Noncommunicable Chronic Diseases-National Science and Technology Major Project)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Individual participant data will not be shared because there is currently no approved data sharing policy for this multicenter study. De-identified participant data will be managed in accordance with institutional regulations and applicable ethical and legal requirements.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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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 Brystneoplasmer

Kliniske forsøg med Standardized Breast Ultrasound Screening

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