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Exploring the Tumor Micro-Environment with 68Ga-FAPi-46 PET/CT in Breast Cancer

Exploring the Tumor Micro-Environment with 68Ga-FAPi-46 PET/CT in Breast Cancer. a Phase II Study to Evaluate the Comparison of 68Ga-FAPi-46 and 18F-FDG Uptake in Patients with Different Breast Cancer Subtypes

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06790264
Acronym
FAPI-PET
Enrollment
92
Registered
2025-01-24
Start date
2024-11-01
Completion date
2025-11-30
Last updated
2025-01-27

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

Conditions

Breast Cancer Invasive, Node Positive Breast Cancer

Keywords

68Ga-FAPi-46 PET/CT

Brief summary

This study is a prospective, non-interventional, open-label study to evaluate the glucose metabolism and the expression of the imaging agent 68 Gallium-Fibroblast Activation Protein Inhibitor-46 (68Ga-FAPi-46) with PET imaging, in woman affected by Breast Cancer (BC) and referred to diagnostic imaging work-up prior to primary therapy.

Detailed description

All patients affected by newly diagnosed, clinically N-positive BC that have already undergone a baseline 2-deoxy-2-\[fluorine-18\]fluoro-D-glucose (18F-FDG) PET/CT (T1) will be screened for eligibility. Patients who will meet all inclusion/exclusion criteria will be considered eligible and asked to participate to the study after signing the informed consent form. Patients' eligibility will be evaluated by the referent nuclear medicine physician (T2). Considering the clinical experience of the investigators, we expect to complete patient enrolment in 12 months after study accrual

Interventions

Study participants will undergo baseline assessments at enrollment with 68Ga-FAPi-46 PET/CT

Sponsors

European Institute of Oncology
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

* Newly diagnosed, biopsy proven breast cancer; * Diagnosis of invasive breast cancer; * Tumor diameter more than 2 centimeters; * Radiological evidence of axillary nodes involvement; * 18F-FDG PET/CT performed as baseline diagnostic procedure, during routine diagnostic work-up; * 68Ga-FAPi-46 PET/CT performed within 4 weeks from 18F-FDG PET/CT; * Patients suitable to primary treatment (surgery or neo-adjuvant therapy); * 68Ga-FAPi-46 PET/CT performed within 8 weeks from primary treatment; * Female patients; * Age ≥18; * Willing to sign informed consent form.

Exclusion criteria

* Pregnant or nursing patients; * Unable to stay flat and cannot tolerate PET scan; * Sample tissue from biopsy unavailable for assessing Fibroblast Activation Protein (FAP) expression; * Eastern Cooperative Oncology Group (ECOG) performance status ≥2.

Design outcomes

Primary

MeasureTime frameDescription
Comparison of 68Ga-FAPi PET/CT and 18F-FDG PET/CT positivity rate3 monthsComparison of 68Ga-FAPi PET/CT and 18F-FDG PET/CT of positivity rate (percentage of detection of metastatic patients)

Countries

Italy

Contacts

Primary ContactFrancesco Ceci
francesco.ceci@ieo.it+390257489315

Outcome results

None listed

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