ECLECTIC: EstroTEP and Circulating Biomarkers for ER-positive HER2-negative Metastatic Breast Cancer Patients

NCT06195709 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 300

Last updated 2026-04-17

No results posted yet for this study

Summary

Eclectic is a strategy trial; once the class of treatment (endocrine therapy or chemotherapy) has been allocated according to 16α-18F-fluoro-17β-oestradiol (18F-FES) Positron Emission Tomography/Computed Tomography (PET/CT) results and circulating tumor biomarkers, clinicians will decide which treatment to use.

Conditions

  • Breast Carcinoma

Interventions

COMBINATION_PRODUCT

Endocrine therapy

Consist in single agent endocrine therapy or in combination with targeted therapy, per guidelines and label. LH-RH agonist will be used in combination with endocrine therapy whenever appropriate and per label.

COMBINATION_PRODUCT

Endocrine therapy combined with the local treatment of FES-negative lesions

Consist in single agent endocrine therapy or in combination with targeted therapy, per guidelines and label. LH-RH agonist will be used in combination with endocrine therapy whenever appropriate and per label. Cases with only 1 or 2 FES-negative lesions that are accessible to local treatment will be reviewed by the Centralized Reading Committee (including a radiation oncologist) to confirm the feasibility of local treatment.

COMBINATION_PRODUCT

Chemotherapy

Consist in single agent chemotherapy, poly-chemotherapy, or antibody-drug conjugates, per guidelines and label. Patients who are eligible (per drug label) may receive PARP inhibitor if allocated to Arm B.

Sponsors & Collaborators

  • Zionexa

    collaborator INDUSTRY
  • Institut Curie

    lead OTHER

Principal Investigators

  • Steven Le GOUILL, PhD · Institut Curie

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-05-27
Primary Completion
2029-09-27
Completion
2030-09-27

Countries

  • France

Study Locations

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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 NCT06195709 on ClinicalTrials.gov