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Rationale and Trial Design of PFB-03 Study: Diagnostic Performance and Clinical Application of 18F-FAPI-PET/CT for Detecting Axillary Lymph Node Metastasis in Breast Cancer Patients After Neoadjuvant Therapy

NCT07012707 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 172

Last updated 2025-06-10

No results posted yet for this study

Summary

Axillary lymph node (ALN) status is a crucial prognostic factor in breast cancer. Accurate, non-invasive methods for evaluating axillary lymph node metastasis after neoadjuvant therapy (NAT) are needed to optimize surgical decisions and minimize patient morbidity. Fibroblast Activation Protein Inhibitor (FAPI) PET/CT targets cancer-associated fibroblasts and may improve diagnostic accuracy. This study aims to assess the diagnostic performance and clinical utility of 18F-FAPI PET/CT in detecting ALN metastasis after NAT in breast cancer patients. This prospective, single-center study will enroll breast cancer patients with cT1-4N0-1M0 stage before NAT, who will undergo pre-surgical 18F-FAPI PET/CT followed by sentinel lymph node biopsy (SLNB) or axillary lymph node dissection (ALND) guided by protocol stratification based on FAPI PET/CT and clinical findings. The primary endpoint is the diagnostic accuracy of 18F-FAPI PET/CT for ALN metastasis versus pathology. Secondary endpoints include false-negative rates (FNR) of SLNB, lymphedema rates, and long-term outcomes such as local recurrence and survival rates.

Conditions

Sponsors & Collaborators

  • Peking Union Medical College Hospital

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-06-01
Primary Completion
2027-05-31
Completion
2030-05-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07012707 on ClinicalTrials.gov