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68Ga FAPI PET/CT Evaluation of Axillary Lymph Node Status After Neoadjuvant Therapy in Patients With Clinical Axillary Lymph Node Positive Breast Cancer

68Ga FAPI PET/CT Evaluation of Axillary Lymph Node Status After Neoadjuvant Therapy in Patients With Clinical Axillary Lymph Node Positive Breast Cancer

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06559371
Enrollment
150
Registered
2024-08-19
Start date
2024-08-30
Completion date
2026-06-30
Last updated
2025-12-29

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

Conditions

BREAST CANCER, PET/CT

Keywords

BREAST CANCER, PET/CT

Brief summary

The goal of this observational study is to learn whether 68Ga-FAPI PET/CT may be used as a new effective methods for evaluating axillary lymph node efficacy after neoadjuvant treatment for breast cancer. The main question it aims to answer is: Could 68Ga-FAPI PET/CT effectively evaluate axillary lymph node after neoadjuvant treatment for breast cancer? Participants will have a 68Ga-FAPI PET/CT test between last neoadjuvant therapy and surgery.

Detailed description

Previous studies have shown that compared with conventional 18F-FDG PET/CT, 68Ga-FAPI PET/CT has the characteristics of not being affected by blood glucose, good tumor specificity, and high tumor-to-background ratio, and studies have shown that 68Ga- FAPI PET/CT can detect parts of breast cancer primary lesions and lymph node metastases with low 18F-FDG uptake, thereby increasing the lesion detection rate and improving the sensitivity of imaging examinations. Therefore, 68Ga-FAPI PET/CT may be used as a new effective methods for evaluating axillary lymph node efficacy after neoadjuvant treatment for breast cancer. Therefore, we plan to conduct this study to explore the ability of 68Ga-FAPI PET/CT to detect residual disease in axillary lymph nodes in patients with clinically positive axillary node (cN+) breast cancer after neoadjuvant treatment. By this way, we may explore an accurate and non-invasive assessment of axillary lymph node status after neoadjuvant therapy in breast cancer patients.

Interventions

None listed

Sponsors

Kunwei Shen
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Female patients aged 18 and above * ECOG score 0-2 points * Pathological confirmation of malignant breast tumor * Clinical axillary lymph node positivity (cN+) * Completed at least 3 courses of neoadjuvant therapy and subjected to undergo surgical treatment * Informed consent form signed

Exclusion criteria

* Distant metastasis * Unable to complete the proposed neoadjuvant therapy plan * Pregnancy

Design outcomes

Primary

MeasureTime frameDescription
Sensitivity and specificity of 68Ga FAPI PET/CT in predicting residual axillary lymph node lesions after neoadjuvant therapyup to the end of surgerySensitivity and specificity of 68Ga FAPI PET/CT

Secondary

MeasureTime frameDescription
Sensitivity and specificity of 68Ga FAPI PET/CT in predicting pathological complete response (Breast pCR) of breast lesions in neoadjuvant therapyup to the end of surgerySensitivity and specificity of 68Ga FAPI PET/CT in predicting pathological complete response (Breast pCR) of breast lesions in neoadjuvant therapy
Sensitivity and specificity of 68Ga FAPI PET/CT in predicting objective response rate (ORR) of neoadjuvant therapyup to the end of surgerySensitivity and specificity of 68Ga FAPI PET/CT in predicting objective response rate (ORR) of neoadjuvant therapy
68Ga FAPI PET/CT in predicting invasive disease free survival after neoadjuvant therapyFrom enrollment to the end of treatment at 3 years68Ga FAPI PET/CT in predicting invasive disease free survival after neoadjuvant therapy
68Ga FAPI PET/CT in predicting overall survival after neoadjuvant therapyFrom enrollment to the end of treatment at 3 years68Ga FAPI PET/CT in predicting overall survival after neoadjuvant therapy

Countries

China

Contacts

Primary ContactXiaosong Chen
zsj_mu@yeah.net86-21-64370045

Outcome results

None listed

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