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"ECLECTIC": EstroTEP and circulating biomarkers to determine the optimal second line therapy for ER-positive HER2-negative metastatic breast cancer patients

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-506282-66-00
Acronym
IC 2022-12
Enrollment
300
Registered
2023-12-05
Start date
2024-05-27
Completion date
Unknown
Last updated
2025-11-10

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

Conditions

Women with ER+ HER2- metastatic breast cancer who progressed on first line therapy with CDK4/6 inhibitor and aromatase inhibitor

Brief summary

Progression-free survival (PFS), defined as the time from randomization to progression or death, among randomized patients

Detailed description

Other efficacy endpoints among randomized patients: Progression-free survival (PFS) with available PERCIST tumor evaluation; Overall survival (OS) among randomized patients (arms B and C), Objective response rate (ORR), Clinical benefit rate (CBR) at 24 weeks., Above-mentioned efficacy criteria (PFS, OS, ORR and CBR at 24 weeks) will be evaluated in patients allocated to arm A., Grade 3 or 4 AEs (adverse events) according to NCI CTCAE v5.0, and their relationship to study treatment (chemotherapy or endocrine therapy) will be recorded. For 18F-FES PET/CT, serious adverse events (SAE) and any grade AEs will be collected., QLQ-C30 questionnaire measured at baseline and after 2 months of treatment.

Interventions

DRUGsolution injectable

Sponsors

Institut Curie
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Progression-free survival (PFS), defined as the time from randomization to progression or death, among randomized patients

Secondary

MeasureTime frame
Other efficacy endpoints among randomized patients: Progression-free survival (PFS) with available PERCIST tumor evaluation; Overall survival (OS) among randomized patients (arms B and C), Objective response rate (ORR), Clinical benefit rate (CBR) at 24 weeks., Above-mentioned efficacy criteria (PFS, OS, ORR and CBR at 24 weeks) will be evaluated in patients allocated to arm A., Grade 3 or 4 AEs (adverse events) according to NCI CTCAE v5.0, and their relationship to study treatment (chemotherapy or endocrine therapy) will be recorded. For 18F-FES PET/CT, serious adverse events (SAE) and any grade AEs will be collected., QLQ-C30 questionnaire measured at baseline and after 2 months of treatment.

Countries

France

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026