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Immunrespons på anti-HER2-terapier hos pasienter med HER2-positiv stadium I-IV brystkreft

4. november 2026 oppdatert av: Mayo Clinic

Immunrespons på anti-HER2-terapier

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.

Studieoversikt

Status

Avsluttet

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

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.

Studietype

Observasjonsmessig

Registrering (Faktiske)

127

Kontakter og plasseringer

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

Studiesteder

    • Florida
      • Jacksonville, Florida, Forente stater, 32224-9980
        • Mayo Clinic in Florida

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

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Hunn

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Stage I-IV HER2 positive breast cancer patients

Beskrivelse

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.

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: CASE_ONLY
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
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

Andre navn:
  • Biologisk prøvesamling
  • Bioprøve samlet
  • Prøvesamling
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

Andre navn:
  • Biologisk prøvesamling
  • Bioprøve samlet
  • Prøvesamling

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
HER2 specific T-cell response and clinical response
Tidsramme: 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
Tidsramme: 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

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Proportion of patients who develop HER2-specific T cell and endogenous antibody responses
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: Up to 16 weeks

Descriptive statistics will be used.

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

Descriptive statistics will be used.

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

Descriptive statistics will be used.

Up to 16 weeks

Samarbeidspartnere og etterforskere

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

Sponsor

Etterforskere

  • Hovedetterforsker: Saranya Chumsri, MD, Mayo Clinic

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

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)

31. juli 2020

Primær fullføring (Faktiske)

15. januar 2026

Studiet fullført (Faktiske)

15. januar 2026

Datoer for studieregistrering

Først innsendt

14. august 2020

Først innsendt som oppfylte QC-kriteriene

14. august 2020

Først lagt ut (Faktiske)

18. august 2020

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

9. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

4. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • MC1937
  • NCI-2020-05781 (Registeridentifikator: CTRP (Clinical Trial Reporting Program))
  • 19-011040 (Annen identifikator: Mayo Clinic Institutional Review Board)

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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