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Immunantwort auf Anti-HER2-Therapien bei Patienten mit HER2-positivem Brustkrebs im Stadium I-IV

4. November 2026 aktualisiert von: Mayo Clinic

Immunantwort auf Anti-HER2-Therapien

This study gathers information from the blood cells and tumor tissue during treatment with anti-HER2 therapies, such as trastuzumab, pertuzumab, lapatinib, or neratinib, in patients with HER2 positive stage I-IV breast cancer who are scheduled to start anti-HER2 therapy. The information gained from this study may help researchers better understand the relation between cell response and anti-HER2 therapies.

Studienübersicht

Status

Beendet

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

PRIMARY OBJECTIVES I. To determine the correlation between HER2 specific T-cell response in HER2-positive breast cancer patients with stage I-IV who receive anti-HER2 therapies, such as trastuzumab, pertuzumab, lapatinib, or neratinib and clinical responses.

II. To determine the correlation between antibody response in HER2-positive breast cancer patients with stage I-IV who receive anti-HER2 therapies, such as trastuzumab, pertuzumab, lapatinib, or neratinib and clinical responses.

III. To determine the correlation between host immune response in tumor tissue in HER2-positive breast cancer patients with stage I-IV who receive anti-HER2 therapies, such as trastuzumab, pertuzumab, lapatinib, or neratinib and clinical responses.

EXPLORATORY OBJECTIVES:

I. To estimate the proportion of patients who develop HER2-specific T cell and endogenous antibody responses.

II. To examine within individual patients trends in levels of HER2 CD4 T-cells, HER2 CD8 T-cells, and HER2-specific antibodies over the course of treatment.

III. To determine if combination therapy induces immunity to common breast cancer associated antigens (i.e. CEA, IGFBP2, and P53).

IV. To determine if induction of HER2-specific T cell or antibody immunity is associated with improved progression-free and overall survival in patients.

V. To determine if there are Fc gamma receptor (R) or HLA genotypes associated with the ability to generate immunity in response to anti-HER2 therapy.

VI. To determine whether anti-HER2 therapy induces HER2 loss and modulation of HER2-specific adaptive immune responses.

VII. To determine if loss-of-function mutations in antigen presenting genes are associated with recurrence in patients with HER2+ breast cancer.

VIII. To determine gene expression levels in tumors from patients who did not achieve pathologic complete response (pCR) that are associated with recurrence.

OUTLINE: This is an observational study. Patients are assigned to 1 of 2 cohorts.

BLOOD & TISSUE COHORT: Patients with stage I-III disease undergo collection of blood samples at baseline, 8 and 16 weeks after starting treatment, and at the time of invasive disease recurrence. Patients with stage IV disease undergo collection of blood samples at baseline, 8 and 16 weeks after starting treatment, and at the time of progressive disease. Patients with stage IV disease with no disease progression ≥ 2 years on the same line of therapy undergo collection of blood samples at baseline, 8 and 16 weeks after starting treatment, and at the time of invasive disease recurrence. For all patients, tissue samples from previous biopsy and/or surgical resection are also collected on study.

TISSUE-ONLY COHORT: For patients with stage I-IV disease who received or previously completed anti-HER2 therapy, tissue samples from previous biopsy and/or surgical resection are collected on study.

Studientyp

Beobachtungs

Einschreibung (Tatsächlich)

127

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • Florida
      • Jacksonville, Florida, Vereinigte Staaten, 32224-9980
        • Mayo Clinic in Florida

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Weiblich

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

Stage I-IV HER2 positive breast cancer patients

Beschreibung

Inclusion Criteria:

  • Age >= 18 years
  • Histological confirmed adenocarcinoma of the breast stage I-IV from the American Joint Committee on Cancer staging 8th edition
  • Any estrogen receptor (ER) or progesterone receptor (PR) but HER2 positive defined as per the most current American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guideline
  • Provide written informed consent
  • Willingness to provide blood samples for correlative research purposes
  • BLOOD AND TISSUE COHORT: Scheduled to start new anti-HER2 therapy/therapies
  • TISSUE-ONLY COHORT: Received or previously completed anti-HER2 therapy/therapies

Exclusion Criteria:

  • Immunocompromised patients including patients known to be human immunodeficiency virus (HIV) positive
  • Receiving systemic steroid therapy or any other immunosuppressive therapy =< 30 days prior to registration. NOTE: Inhaled steroids, low-dose corticosteroids (e.g. equivalent to or less than oral prednisone 10 mg daily), and steroid use for primary prevention of nausea per institutional guidelines are allowed.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Beobachtungsmodelle: CASE_ONLY
  • Zeitperspektiven: PROSPECTIVE

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
Observational Blood & Tissue Cohort

Patients with stage I-III disease undergo collection of blood samples at baseline, 8 and 16 weeks after starting treatment, and at the time of invasive disease recurrence. Patients with stage IV disease undergo collection of blood samples at baseline, 8 and 16 weeks after starting treatment, and at the time of progressive disease. Patients with stage IV disease with no disease progression ≥ 2 years on the same line of therapy undergo collection of blood samples at baseline, 8 and 16 weeks after starting treatment, and at the time of invasive disease recurrence. For all patients, tissue samples from previous biopsy and/or surgical resection are also collected on study.

Undergo collection of blood and tumor tissue samples

Andere Namen:
  • Biologische Probensammlung
  • Bioprobe gesammelt
  • Probenentnahme
Observational Tissue-Only Cohort

For patients with stage I-IV disease who received or previously completed anti-HER2 therapy, tissue samples from previous biopsy and/or surgical resection are collected on study.

Undergo collection of blood and tumor tissue samples

Andere Namen:
  • Biologische Probensammlung
  • Bioprobe gesammelt
  • Probenentnahme

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
HER2 specific T-cell response and clinical response
Zeitfenster: Up to 16 weeks

Defined as (1) a 2-fold or greater increase in HER2-specific T cells or HER2-specific antibodies at any point during treatment if pre-treatment levels of HER2-specific T cells or antibodies are detectable, or (2) HER2-specific T cells or HER2-specific antibodies at any point during treatment if pretreatment levels of HER-2 binding activity are non-detectable.

Up to 16 weeks
Antibody response and clinical response
Zeitfenster: Up to 16 weeks

Defined as (1) a 2-fold or greater increase in HER2-specific T cells or HER2-specific antibodies at any point during treatment if pre-treatment levels of HER2-specific T cells or antibodies are detectable, or (2) HER2-specific T cells or HER2-specific antibodies at any point during treatment if pretreatment levels of HER-2 binding activity are non-detectable.

Up to 16 weeks

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Proportion of patients who develop HER2-specific T cell and endogenous antibody responses
Zeitfenster: Up to 16 weeks

A two sided alpha=0.10 test of proportions will be used to assess whether the proportion of women who develop a HER2-specific immune response differs between the women who develop a tumor response and those who do not.

Up to 16 weeks
Levels of HER2 CD4 T-cells, HER2 CD8 T-cells, and HER2-specific antibodies
Zeitfenster: Up to 16 weeks

Descriptive statistics will be used to quantify T cell or antibody response within each cohort of patients, namely (neo)adjuvant vs. metastatic setting and within each anti-HER2 treatments (i.e. trastuzumab, pertuzumab, lapatinib, or neratinib).

Up to 16 weeks
Association between combination therapy and immunity to common breast cancer associated antigens
Zeitfenster: Up to 16 weeks

Descriptive statistics will be used.

Up to 16 weeks
Association between HER2-specific T cell or antibody immunity and improved progression-free survival
Zeitfenster: Up to 16 weeks

Descriptive statistics will be used.

Up to 16 weeks
Association between HER2-specific T cell or antibody immunity and improved overall survival in patients
Zeitfenster: Up to 16 weeks

Descriptive statistics will be used.

Up to 16 weeks
Association between anti-HER2 therapy and HER2 loss and modulation of HER2-specific adaptive immune responses
Zeitfenster: Up to 16 weeks

Descriptive statistics will be used.

Up to 16 weeks
Association between loss-of-function mutations and recurrence
Zeitfenster: Up to 16 weeks or recurrence

Descriptive statistics will be used.

Up to 16 weeks or recurrence
Association between gene expression levels and recurrence
Zeitfenster: Up to 16 weeks or recurrence

Descriptive statistics will be used.

Up to 16 weeks or recurrence
Association between Fc gamma receptor (R) or human leukocyte antigen (HLA) genotypes and ability to generate immunity
Zeitfenster: Up to 16 weeks

Descriptive statistics will be used.

Up to 16 weeks

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Hauptermittler: Saranya Chumsri, MD, Mayo Clinic

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

31. Juli 2020

Primärer Abschluss (Tatsächlich)

15. Januar 2026

Studienabschluss (Tatsächlich)

15. Januar 2026

Studienanmeldedaten

Zuerst eingereicht

14. August 2020

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

14. August 2020

Zuerst gepostet (Tatsächlich)

18. August 2020

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

9. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

4. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • MC1937
  • NCI-2020-05781 (Registrierungskennung: CTRP (Clinical Trial Reporting Program))
  • 19-011040 (Andere Kennung: Mayo Clinic Institutional Review Board)

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .