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Multimodal Liquid-Biopsy Omics Biomarkers of Treatment Response in Breast Cancer

9 listopada 2026 zaktualizowane przez: Chen Kai, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Exploration of Treatment-Response Biomarkers in Breast Cancer Based on Integrated Liquid-Biopsy Multimodal Omics Features

This single-center cohort study integrates humoral immune response profiling (Phage ImmunoPrecipitation Sequencing, PhIP-seq) with circulating cell-free DNA (cfDNA) genomic and epigenomic features, exosome transcriptomics, and plasma metabolomics to discover and validate liquid-biopsy biomarkers of treatment response in breast cancer.

The study comprises four cohorts: (1) a retrospective pan-cancer cohort of approximately 1,000 patients with solid malignant tumor, using archived residual serum/plasma to construct a pan-cancer antigen repertoire and cfDNA mutational/methylation atlas, with priority given to patients who had available Whole Exome Sequencing (WES) data; (2) a prospective cohort of 800 women with non-metastatic (M0) breast cancer receiving standard neoadjuvant chemotherapy (NAC); (3) a prospective cohort of 100 women with metastatic (M1) breast cancer receiving standard systemic therapy; and (4) a control group of 100 individuals, including patients with benign breast disease (breast fibroadenoma) and healthy volunteers.

The primary objective is to identify biomarkers-autoantibody repertoires, cfDNA mutation clearance, methylation reprogramming, exosome transcripts, and metabolic signatures-associated with pathological complete response (pCR) to NAC, and to develop predictive models where feasible.

Przegląd badań

Status

Rekrutacyjny

Warunki

Szczegółowy opis

Peripheral blood (20 mL) is collected at protocol-defined time points. Serum/Plasma autoantibody repertoires are profiled by PhIP-seq(phage-display immunoprecipitation sequencing); cfDNA methylation is measured by bisulfite-free methylome profiling; exosome RNA is profiled by strand-specific RNA sequencing; and untargeted plasma metabolomics is performed by liquid chromatography-tandem mass spectrometry. The study endpoints include clinical response and pathological complete response after NAC, together with survival follow-up. The study is conducted in accordance with the Declaration of Helsinki and Chinese regulations for investigator-initiated research, and has been approved by the institutional ethics committee.

Ambispective - a retrospective pan-cancer cohort (archived samples, 2020 Jan - 2026. Sep) combined with prospective breast cancer cohorts (enrollment 2026. Oct -2029)

Typ studiów

Obserwacyjny

Zapisy (Szacowany)

2000

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Lokalizacje studiów

    • Guangdong
      • Shanwei, Guangdong, Chiny, 516601
        • Rekrutacyjny
        • Shenshan Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University
        • Kontakt:

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat do 80 lat (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Tak

Płeć kwalifikująca się do nauki

Wszystko

Metoda próbkowania

Próbka bez prawdopodobieństwa

Badana populacja

Study participants will be selected from three main sources: (1) healthy female volunteers recruited for this study; (2) patients receiving clinical treatment at our institution; and (3) patients undergoing relevant diagnostic or clinical examinations at our institution.

Opis

Inclusion Criteria:

Retrospective pan-cancer cohort:

  1. Aged 18 to 80 years;
  2. Both genders
  3. Clinically and histopathologically confirmed diagnosis of solid malignant tumors, including but not limited to non-small cell lung cancer, colorectal cancer, gastric cancer, hepatocellular carcinoma, or breast cancer.
  4. Complete clinical data available, including definitive TNM stage and established treatment plan;
  5. Archived peripheral blood samples (serum/plasma) collected during routine clinical care.

Prospective neoadjuvant chemotherapy (NAC) breast cancer cohort:

  1. Female, aged 18 to 80 years (inclusive);
  2. Clinically and pathologically confirmed non-metastatic (M0) breast cancer;
  3. Planned standard NAC at the study site, with complete pre-treatment ER, PR, and HER2 immunohistochemistry results available;
  4. Voluntary participation with signed written informed consent.

Prospective metastatic breast cancer cohort:

  1. Female, aged 18 to 80 years (inclusive);
  2. Clinically and pathologically confirmed metastatic (M1) breast cancer;
  3. Planned standard systemic therapy at the study site, with complete ER, PR, and HER2 immunohistochemistry results available;
  4. Voluntary participation with signed written informed consent.

Benign/Healthy control group:

  1. Healthy female volunteers, or female patients with breast fibroadenoma undergoing minimally invasive biopsy during the same period;
  2. Voluntary participation with signed written informed consent.

Exclusion Criteria:

For prospective breast cancer cohorts:

  1. History of mastitis, or systemic rheumatic/autoimmune diseases (e.g., systemic lupus erythematosus, rheumatoid arthritis);
  2. Acute or chronic infectious diseases within the past 6 months (e.g., pneumonia, pulmonary tuberculosis, active hepatitis);
  3. Long-term use of glucocorticoids, immunosuppressants, biologic agents, or psychotropic medications (short-term or as-needed use excepted);
  4. Inability or refusal to provide informed consent.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Modele obserwacyjne: COHORT
  • Perspektywy czasowe: OTHER

Kohorty i interwencje

Grupa / Kohorta
Retrospective Pan-Cancer Cohort

Patients aged 18-80 years with histologically confirmed solid malignant tumors( e.g. non-small cell lung cancer, colorectal cancer, gastric cancer, hepatocellular carcinoma, or breast cancer), diagnosed at the study site between January 2020 and Sep 2026, with complete clinical data (TNM stage and treatment plan) and archived residual serum/plasma samples. Approximately 1,000 cases.

Prospective Neoadjuvant Chemotherapy (NAC) Breast Cancer Cohort

Women aged 18-80 years with clinically and pathologically confirmed non-metastatic (M0) breast cancer who plan to receive standard NAC at the study site, with complete pre-treatment ER, PR, and HER2 immunohistochemistry results. Planned enrollment: 800. Peripheral blood (20 mL) is collected before, during, and after NAC (pre-surgery), in addition to routine clinical data.

Prospective Benign/Control Group (Breast Fibroadenoma or Healthy Volunteers)

Patients with breast fibroadenoma undergoing minimally invasive biopsy during the same period, serving as benign controls to calibrate background signals of circulating antigens and liquid-biopsy analytes. Healthy female volunteers will also be enrolled. Planned enrollment: 100.

Prospective Metastatic Breast Cancer Cohort

Women aged 18-80 years with clinically and pathologically confirmed metastatic (M1) breast cancer who plan to receive standard systemic therapy at the study site, with complete ER, PR, and HER2 immunohistochemistry results.Planned enrollment: 100. Serial peripheral blood samples are collected before, during, and after treatment.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Pathological Complete Response (pCR) Rate
Ramy czasowe: At definitive surgery after completion of NAC (approximately 4-6 months after NAC initiation)

Proportion of patients achieving pCR after completion of neoadjuvant chemotherapy, defined as ypT0/is ypN0 (no invasive cancer in the breast and ipsilateral axillary lymph nodes; ductal carcinoma in situ may be present), consistent with RCB-0.

At definitive surgery after completion of NAC (approximately 4-6 months after NAC initiation)

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Residual Cancer Burden (RCB) Class
Ramy czasowe: At definitive surgery after completion of NAC (approximately 4-6 months after NAC initiation)

RCB class (RCB-0, RCB-I, RCB-II, RCB-III) quantifying residual tumor in the breast and lymph nodes after neoadjuvant therapy, calculated using the internationally validated MD Anderson Cancer Center RCB calculator based on standardized pathological assessment of surgical specimens.

At definitive surgery after completion of NAC (approximately 4-6 months after NAC initiation)
Invasive Disease-Free Survival (iDFS)
Ramy czasowe: From enrollment until event or study end, assessed every 6 months (up to approximately 5 years)

Time from enrollment to the first occurrence of any of the following: ipsilateral invasive breast cancer recurrence, contralateral invasive breast cancer, distant metastasis, second primary non-breast invasive malignancy, or death from any cause (conservative definition including all deaths), per established consensus definitions. Follow-up includes clinical visits and imaging (breast ultrasound/MRI, chest-abdominal CT, bone scan as risk-stratified) every 6 months.

From enrollment until event or study end, assessed every 6 months (up to approximately 5 years)
Progression-Free Survival (PFS)
Ramy czasowe: From enrollment until event or study end (up to approximately 5 years)

Time from enrollment to the first radiographically confirmed disease progression (per RECIST 1.1) or death from any cause. This outcome is only available for M1 patients.

From enrollment until event or study end (up to approximately 5 years)
Overall Survival (OS)
Ramy czasowe: From enrollment until death or study end (up to approximately 5 years or longer)

Time from enrollment to death from any cause. Death events are confirmed by death certificates, hospital records, or national vital registration systems. Patients lost to follow-up are censored at the date of last contact.

From enrollment until death or study end (up to approximately 5 years or longer)

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Współpracownicy

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Rzeczywisty)

12 października 2026

Zakończenie podstawowe (Szacowany)

30 czerwca 2030

Ukończenie studiów (Szacowany)

30 grudnia 2034

Daty rejestracji na studia

Pierwszy przesłany

11 października 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

11 października 2026

Pierwszy wysłany (Rzeczywisty)

19 października 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

12 listopada 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

9 listopada 2026

Ostatnia weryfikacja

1 listopada 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • 2026-SSKY-048
  • 2026-SSKY-048 (Inny identyfikator: Shenshan Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University)

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIEZDECYDOWANY

Opis planu IPD

De-identified individual participant data may be made available upon reasonable request to the corresponding investigator after publication of the primary results, subject to institutional and ethics committee approval.

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

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