Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Preoperativ vs. patologisk størrelse i brystkreft: en prospektiv studie

3. november 2026 oppdatert av: Young-Joon Kang, Incheon St.Mary's Hospital

Overensstemmelse mellom preoperative vurderinger og patologiske størrelsesmålinger i brystkreft: en prospektiv observasjonsstudie

Breast cancer, the most prevalent malignancy among women globally, is increasing in incidence. While non-metastatic breast cancer requires surgery, determining the optimal extent of resection remains challenging. Inadequate resection margins necessitate reoperation, leading to increased psychological stress, costs, and potentially compromised cosmetic outcomes and prognosis.

Accurate preoperative assessment of resection extent is crucial and involves various factors, including imaging studies, physical examinations, tumor molecular subtypes, and intraductal carcinoma components. This prospective observational study aims to identify and integrate multiple predictive factors to enhance surgical planning and minimize reoperation rates in breast cancer patients.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Breast cancer is the most prevalent malignancy among women globally, leading to surgical interventions for non-metastatic cases. While breast cancer generally has a favorable prognosis, achieving negative resection margins at initial surgery is crucial for optimal outcomes. The challenge associated with accurately predicting the extent of resection preoperatively, as failure to secure clear margins may necessitate further resection or total mastectomy, resulting in increased psychological stress, higher healthcare costs, compromised cosmetic results, and potential negative impacts on long-term prognosis and quality of life. Many factors contribute to predicting the optimal resection extent, including imaging studies, physical examination findings, tumor molecular subtypes, presence and extent of intraductal carcinoma components, etc. Despite the availability of these predictive factors, their integration and practical application in clinical decision-making remain challenging. This prospective observational study aims to address this gap by analyzing the interplay of these factors in real-world clinical settings, with the primary objective of deriving an integrated predictive model to guide surgeons in determining the optimal extent of resection preoperatively.

Studietype

Observasjonsmessig

Registrering (Antatt)

600

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Sør -Korea
      • Incheon, Sør -Korea
        • Rekruttering
        • Incheon St. Mary's Hospital
        • Ta kontakt med:
        • Hovedetterforsker:
          • Young-Joon Kang, MD, PhD
        • Underetterforsker:
          • Jae Pak Yi, MD

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

19 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Sannsynlighetsprøve

Studiepopulasjon

The study population will be enrolled from patients at Incheon Saint Mary's Hospital, a 1000-bed tertiary academic medical center located in Incheon, South Korea.

Beskrivelse

Inclusion Criteria:

Adult patients (≥ 19 years old) diagnosed with breast cancer (invasive and in situ).

Patients scheduled for surgical resection of the tumor Availability of both preoperative tumor size assessments and pathologic measurements post-surgery

Exclusion Criteria:

Patients with recurrent breast cancer Inflammatory breast cancer Patients who did not undergo surgery Patients whose preoperative tumor size data is not available or deficient for analyzing

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Breast cancer surgery group

This cohort includes all patients undergoing breast cancer surgery who are enrolled in the study.
Annen: No additional intervention

All patients are scheduled to undergo standard breast surgery as part of their routine clinical care. No additional interventions are administered specifically for this study.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Concordance rate by the intraclass correlation coefficient Factors associated with discrepancies
Tidsramme: Within 30 days after surgery

To assess the concordance between preoperative tumor size assessments made by surgeons and the actual tumor size determined by pathologic analysis following surgical resection in patients with breast cancer.

  • Using the scale of Landis and Koch according to the intraclass correlation coefficient.
  • With/without MRI status. To identify and evaluate factors associated with discrepancies between preoperative assessments and pathologic measurements.
Within 30 days after surgery

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Concordance rate by size discordance (5mm) To evaluate the concordance between preoperative tumor size assessments and pathologic measurements in the subgroup of patients with ductal carcinoma in situ (DCIS)
Tidsramme: Within 30 days after surgery

To assess the concordance between preoperative tumor size assessments made by surgeons and the actual tumor size determined by pathologic analysis following surgical resection in patients with breast cancer. A difference of 5mm or more between preoperative and pathologic measurements is defined as discordance.
Within 30 days after surgery
Concordance rate and discrepancy factor in ductal carcinoma in situ (DCIS) subgroup
Tidsramme: Within 30 days after surgery

To evaluate the concordance between preoperative tumor size assessments and pathologic measurements in the subgroup of patients with ductal carcinoma in situ (DCIS).
Within 30 days after surgery
Concordance rate and discrepancy factor in neoadjuvant systemic therapy subgroup
Tidsramme: Within 30 days after surgery

To assess the concordance between preoperative tumor size assessments and pathologic measurements in the subgroup of patients who received neoadjuvant systemic therapy
Within 30 days after surgery
Proportion of surgical method change: rates of unnecessary total mastectomy
Tidsramme: Within 30 days after surgery

To determine the rate of change in surgical method (e.g., from lumpectomy to mastectomy, nipple-sparing to skin-sparing, or vice versa) based on discrepancies between preoperative tumor size assessments and pathologic measurements. This involves collecting the initial surgical method plan from the surgeon before the surgery and, after confirming the pathological size post-surgery, collecting the final surgical method deemed feasible for the patient from the surgeon.
Within 30 days after surgery
Factors requiring MRI: factors associated with size discrepancy between MRI and mammography (with/without Breast ultrasonography)
Tidsramme: Within 30 days after surgery

To determine the associated factors contributing to size discrepancies between mammography (with or without breast ultrasonography) and MRI. For analyzing the clinical factors that necessitate the use of MRI to predict the pathologic tumor size.
Within 30 days after surgery
Rate of recurrence within 1-year after breast surgery
Tidsramme: Within 1 year after enroll

The proportion of patients who develop new malignant lesions during the follow-up period within 1 year after breast surgery.
Within 1 year after enroll

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Incheon St.Mary's Hospital

Samarbeidspartnere

Yonsei University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. august 2024

Primær fullføring (Antatt)

31. desember 2027

Studiet fullført (Antatt)

28. februar 2028

Datoer for studieregistrering

Først innsendt

4. juli 2024

Først innsendt som oppfylte QC-kriteriene

11. juli 2024

Først lagt ut (Faktiske)

17. juli 2024

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

3. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • PREPARE-01

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Abonnere