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GzmB-PET/CT to Evaluate Neoadjuvant Therapy Efficacy in Breast Cancer

Clinical Study on the Evaluation of Neoadjuvant Therapy Efficacy in Breast Cancer Using PET/CT With Granzyme B Imaging Probe

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06725940
Acronym
GzmB-PET4BC
Enrollment
50
Registered
2024-12-10
Start date
2024-11-01
Completion date
2025-11-01
Last updated
2024-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer Invasive

Keywords

breast cancer, Granzyme B, PET/CT, neoadjuvant treatment, pCR

Brief summary

To explore the efficacy of 68Ga-GZMB PET/CT in assessing the response to neoadjuvant therapy for breast cancer, and to investigate the optimal SUVmax threshold of 68Ga-GZMB PET/CT for predicting pathological complete response (pCR), aiming to provide a new and effective means for accurately and non-invasively evaluating the efficacy of neoadjuvant therapy.

Interventions

DEVICE68Ga-GZMB PET/CT

68Ga-GZMB PET/CT

Sponsors

Shanghai Jiao Tong University School of Medicine
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* age 16-65 * histologically confirmed unilateral primary invasive breast cancer * Tumor size≥2cm, axillary lymph node positive, treated with neoadjuvant therapy * complete clinical and histo-pathological information * ECOG 0-1 within 10 days from the beginning of the study * Normal Bone Marrow Reserve: White blood cell count ≥ 3.0×10\^9/L, Neutrophil count ≥ 1.5×10\^9/L, Hemoglobin level ≥ 90g/L; Platelet count (PLT) ≥ 80×10\^9/L; Normal Liver and Kidney Function: Blood aspartate aminotransferase (AST) ≤ 2.5 times the upper limit of normal, Total bilirubin ≤ 1.5 times the upper limit of normal, Serum creatinine ≤ 1.5 times the upper limit of normal, and Creatinine clearance rate \> 50ml/min. * The patient has good compliance with the planned treatment, understands the research procedures, and has signed a written informed consent form

Exclusion criteria

* bilateral or metastatic (stage IV) breast cancer * There has been a history of other malignancies within the past 5 years, except for cured cervical carcinoma in situ and non-melanoma skin cancer * Severe systemic infection or other uncontrolled diseases * Patients with psychiatric disorders or those unable to comply with treatment due to other reasons * Known allergy or intolerance to the drug or its excipients * Having received cytotoxic chemotherapy, endocrine therapy, biological therapy, or radiotherapy for any reason in the past * Patients who are pregnant or lactating, as well as patients of reproductive age who refuse to take appropriate contraceptive measures during the course of this trial. * Patients deemed unsuitable for participation in this study by the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Optimal SUVmax threshold of 68Ga-GZMB PET/CT for predicting pCRthrough study completion, an average of 1 yearOptimal SUVmax threshold of 68Ga-GZMB PET/CT for predicting pathological complete response after neoadjuvant therapy in breast cancer

Secondary

MeasureTime frameDescription
Sensitivity and specificity of 68Ga-GZMB PET/CT for pCRthrough study completion, an average of 1 yearSensitivity and specificity of 68Ga-GZMB PET/CT in assessing pathological complete response after neoadjuvant therapy for breast cance
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 after 68Ga-GZMB PET/CTthrough study completion, an average of 1 yearNumber of participants with treatment-related adverse events as assessed by CTCAE v4.0 after 68Ga-GZMB PET/CT
Correlation between the efficacy of 68Ga-GZMB PET/CT in predicting pathological complete response and tumor-infiltrating lymphocytesthrough study completion, an average of 1 yearCorrelation between the efficacy of 68Ga-GZMB PET/CT in predicting pathological complete response and tumor-infiltrating lymphocytes

Countries

China

Contacts

Primary ContactXiaosong Chen
chenxiaosong0156@hotmail.com+86-21-64370045-602102
Backup ContactSiji Zhu
zsj_mu@yeah.net+86-21-64370045-602102

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026