Fluoroestradiol PET Imaging in Predicting Response to Hormone Therapy of Breast Cancer (ESTROTEPREDIC)
16α-[18F]-Fluoro-œstradiol PET: an in Vivo Biomarker Predicting Response to Hormone Treatment of Metastatic Breast Cancer?
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Main objective: Compare the response rate after 6 months of hormone treatment (or a major change in hormone treatment) in metastatic breast cancer, according to the uptake of FES in metastatic lesions taking-up FDG on PET/CT at baseline.
Secondary objectives:
- evaluate diagnostic performance of FES PET/CT
- determine whether FES PET/CT is able to detect metastases that are not visible on FDG PET/CT. This point may constitute a direct benefit for the patient
- precise the nature of discordant FES/FDG foci
- validate and improve the interpretation criteria for FES PET/CT
- confirm the perfect tolerance
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Paris, France, 75020
- Service de Médecine Nucléaire, Hôpital Tenon
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Post menopausal
- age > 17
- WHO 0-2
- Metastatic adenocarcinoma of the breast
- Treated by antihormone treatment during around 5 years withdrawn for at least 3 months OR metastatic cancer at diagnosis having received no more than one line of hormone treatment
- Life expectancy > 6 months
- Hormone-dependent cancer initially demonstrated by hormone receptors in the tumour
- Presence of oestrogen receptors proven with immunohistochemistry (> 10%) and HER2 determined by immunohistochemistry or FISH (on primary tumour or a metastasis)
- Metastatic recurrence on FDG PET dating less than 1 month, confirmed by another modality (contrast-enhanced CT, MRI, ultrasonography, bone scintigraphy or PET/CT, other)
- FDG PET/CT available on PACS or CD DICOM III format 11
- Informed consent obtained
Exclusion Criteria:
- Other evolutive malignant disease or acute or chronic infectious disease
- Chemotherapy during the last 3 months or change in treatment since FDG PET/CT.
- Isolated liver metastasis (high FES uptake by normal liver)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Other: Fluoroestradiol (18F)
|
2-4 MBq/kg body mass, one single IV injection
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Response rate six months after induction or major change in hormone therapy for metastatic breast cancer.
Time Frame: at 6 months
|
Response rate six months after induction or major change in hormone therapy for metastatic breast cancer.
Response will be determined according to RECIST 1.1 criteria for each patient.
|
at 6 months
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Number of visible non-physiologic foci on FES PET and on the corresponding FDG PET, during centralised reading sessions by masked readers.
Time Frame: at 6 months
|
at 6 months
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Khaldoun KERROU, MD, Assistance Publique - Hôpitaux de Paris
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- P110113
- IDRCB (Other Identifier: 2025-A02589-40)
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