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Etablering og klinisk transformation af ADC-lægemiddeleffektivitetsevalueringssystem for brystkræft baseret på molekylær billeddannelse

7. august 2026 opdateret af: Hua Zhu, Peking University Cancer Hospital & Institute
Formålet med undersøgelsen er at konstruere en ikke-invasiv tilgang 68Ga-TTP PET/CT til at påvise TROP2-ekspressionen af ​​tumorlæsioner hos patienter med brysttumorer og evaluere effektiviteten af ​​ADC-lægemiddelbehandling.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

60

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

  • Navn: Zhi Yang
  • Telefonnummer: 010-88196196
  • E-mail: pekyz@163.com

Undersøgelse Kontakt Backup

Studiesteder

  • Kina
      • Beijing, Kina, 100143
        • Rekruttering
        • Peking University Cancer Hospital & Institute
        • Kontakt:

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inklusionskriterier:

  1. Alder 18-75 år, mand eller kvinde, ECOG score 0 eller 1 point (se tabellen i bilag 2 for scoretabellen);
  2. Blodrutine og lever- og nyrefunktion opfylder følgende kriterier: Blodrutine: WBC ≥ 4,0×109 L eller neutrofil ≥1,5×109 /L, PLT ≥ 100×109/L, Hb≥ 90 g/L; PT eller APTT ≤ 1,5 ULN; Lever- og nyrefunktion: T-Bil ≤ 1,5×ULT(øvre normalgrænse), ALT og AST≤ 2,5 ULN eller ≤ 5×ULT(personer med levermetastase), ALP ≤ 2,5 ULN(ALP ≤ 4,5 ULN, hvis der er knogler) metastase eller levermetastase); BUN ≤ 1,5×ULT, SCr ≤ 1,5×ULT;
  3. Patienter med bekræftet eller mistænkt brystkræft;
  4. Forventet overlevelse ≥12 uger;
  5. God opfølgningsoverholdelse;
  6. Kvinder i den fødedygtige alder (15 til 49 år) skal gennemgå en graviditetstest inden for 7 dage før testens start, og resultatet er negativt; Fertile mænd og kvinder skal give samtykke til brug af effektiv prævention for at sikre graviditet i løbet af undersøgelsesperioden og inden for 3 måneder efter undersøgelsen;
  7. Patientpatienter kan fuldt ud forstå og frivilligt deltage i dette eksperiment og underskrive informeret samtykke.

Ekskluderingskriterier:

  1. Alvorlig unormal lever- og nyrefunktion;
  2. Gravide, gravide og ammende kvinder;
  3. Kan ikke ligge fladt i en halv time;
  4. Ude af stand til at opnå informeret samtykke;
  5. Lider af klaustrofobi eller anden psykisk sygdom;
  6. Mennesker, der er kendt for at være allergiske over for forsøgslægemidlet eller dets hjælpestoffer i forsøgsbehandlingen;
  7. Andre forhold, som efterforskeren vurderer som uegnede til deltagelse i retssagen.

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: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Diagnostic Validation Cohort
Patients with newly diagnosed or suspected breast cancer will undergo one [68Ga]Ga-TTP scan and one [18F]FDG scan within 1 week, in randomized order, with no anticancer treatment administered between the two imaging examinations. This cohort is used to evaluate tumor targeting, compare diagnostic performance with [18F]FDG, and correlate imaging findings with pathology and TROP2 expression.
Medicin: 18F-FDG
[18F]FDG is administered intravenously as the comparator PET radiotracer. In the diagnostic validation cohort, participants undergo one [18F]FDG PET examination within 1 week of the [68Ga]Ga-TTP scan, with no treatment between scans. In the ADC response assessment cohort, participants undergo [18F]FDG PET imaging at the same three time points as [68Ga]Ga-TTP: before ADC therapy, after 2 cycles(each cycle is 21 days), and at disease progression. The planned administered activity is approximately 0.1-0.15 mCi/kg.
Medicin: [68Ga]Ga-TTP
[68Ga]Ga-TTP is a TROP2-targeted PET radiotracer administered intravenously for PET imaging. In the diagnostic validation cohort, participants undergo one [68Ga]Ga-TTP PET examination within 1 week of the comparator [18F]FDG scan. In the ADC response assessment cohort, participants undergo [68Ga]Ga-TTP PET imaging before ADC therapy, after 2 cycles of treatment(each cycle is 21 days), and at disease progression. The planned administered activity is approximately 0.05-0.1 mCi/kg.
Eksperimentel: ADC Response Assessment Cohort
Patients with breast cancer who are planned to receive TROP2-directed ADC therapy will undergo paired [68Ga]Ga-TTP and [18F]FDG imaging at three time points: before treatment, after 2 cycles of ADC therapy(each cycle is 21 days), and at disease progression. This cohort is used to assess longitudinal imaging changes and their relationship with treatment response.
Medicin: 18F-FDG
[18F]FDG is administered intravenously as the comparator PET radiotracer. In the diagnostic validation cohort, participants undergo one [18F]FDG PET examination within 1 week of the [68Ga]Ga-TTP scan, with no treatment between scans. In the ADC response assessment cohort, participants undergo [18F]FDG PET imaging at the same three time points as [68Ga]Ga-TTP: before ADC therapy, after 2 cycles(each cycle is 21 days), and at disease progression. The planned administered activity is approximately 0.1-0.15 mCi/kg.
Medicin: [68Ga]Ga-TTP
[68Ga]Ga-TTP is a TROP2-targeted PET radiotracer administered intravenously for PET imaging. In the diagnostic validation cohort, participants undergo one [68Ga]Ga-TTP PET examination within 1 week of the comparator [18F]FDG scan. In the ADC response assessment cohort, participants undergo [68Ga]Ga-TTP PET imaging before ADC therapy, after 2 cycles of treatment(each cycle is 21 days), and at disease progression. The planned administered activity is approximately 0.05-0.1 mCi/kg.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Diagnostic performance of [68Ga]Ga-TTP PET compared with [18F]FDG PET for breast cancer lesions
Tidsramme: Within 1 week after paired baseline imaging and within 2 months of follow-up/reference standard assessment
To compare the diagnostic performance of [68Ga]Ga-TTP PET and [18F]FDG PET for breast cancer lesions, including sensitivity, specificity, accuracy, false-positive rate, and false-negative rate, using pathology and/or integrated follow-up assessment as reference standard.
Within 1 week after paired baseline imaging and within 2 months of follow-up/reference standard assessment
Change in [68Ga]Ga-TTP uptake in relation to ADC treatment response
Tidsramme: Baseline before ADC therapy, at the end of Cycle 2 of ADC therapy (each cycle is 21 days), and from the start of ADC therapy until first documented disease progression, assessed up to 24 months.
To evaluate the association between changes in tumor uptake on [68Ga]Ga-TTP PET (e.g., SUV or SUVmax) before treatment, after 2 cycles of TROP2-directed ADC therapy(each cycle is 21 days), and at disease progression, and clinical treatment response in patients with breast cancer receiving ADC therapy.assessed up to 24 months.
Baseline before ADC therapy, at the end of Cycle 2 of ADC therapy (each cycle is 21 days), and from the start of ADC therapy until first documented disease progression, assessed up to 24 months.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Correlation between [68Ga]Ga-TTP uptake and TROP2 expression in tumor tissue
Tidsramme: At baseline PET/CT imaging and from 4 weeks before to 8 weeks after baseline imaging for pathological tissue assessment.
To evaluate the correlation between standardized uptake values of [68Ga]Ga-TTP PET in target or suspected tumor lesions and TROP2 expression level in corresponding pathological tissue samples.
At baseline PET/CT imaging and from 4 weeks before to 8 weeks after baseline imaging for pathological tissue assessment.
Biodistribution and temporal distribution pattern of [68Ga]Ga-TTP in patients
Tidsramme: From injection to 40 minutes post-injection for dynamic PET imaging; at 50-60 minutes post-injection for routine static PET/CT imaging; and at 2 hours post-injection and 3 hours post-injection for delayed PET/CT imaging in the dynamic-imaging subgroup.
To assess the in vivo biodistribution, organ uptake, and temporal distribution characteristics of [68Ga]Ga-TTP in patients with breast cancer at different imaging time windows.
From injection to 40 minutes post-injection for dynamic PET imaging; at 50-60 minutes post-injection for routine static PET/CT imaging; and at 2 hours post-injection and 3 hours post-injection for delayed PET/CT imaging in the dynamic-imaging subgroup.
Pathological results of lesions suspected to be positive on [68Ga]Ga-TTP PET
Tidsramme: Within 2 months after imaging
To assess the pathological findings of lesions suspected to be positive on [68Ga]Ga-TTP PET imaging, including concordance with biopsy or surgical pathology when available.
Within 2 months after imaging

Samarbejdspartnere og efterforskere

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

Sponsor

Peking University Cancer Hospital & Institute

Samarbejdspartnere

Yunnan Cancer 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 (Faktiske)

10. december 2024

Primær færdiggørelse (Anslået)

1. december 2026

Studieafslutning (Anslået)

1. december 2026

Datoer for studieregistrering

Først indsendt

26. november 2024

Først indsendt, der opfyldte QC-kriterier

2. december 2024

Først opslået (Faktiske)

4. december 2024

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

11. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. august 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2024KT140

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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