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NoELA_No Endocrine therapy in small HR+ HER2- low relapse risk Luminal A early breast cancer, a single-arm de-escalation trial

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-523683-20-00
Enrollment
630
Registered
2026-04-21
Start date
Unknown
Completion date
Unknown
Last updated
2026-04-21

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

Conditions

Postmenopausal patients with small (pT1a-b pN0) hormone receptor positive (HR⁺) and HER2 negative (HER2⁻) early breast cancer with a Luminal A phenotype and at low risk of recurrence.

Brief summary

Relapse-free interval (RFI) is defined as the delay between initial treatment and the first occurrence of i) ipsilateral breast tumor recurrence, ii) distant or locoregional recurrence or iii) death from breast cancer, according to the STEEP system definition version 2.0 (Tolaney SM et al., JCO 2021)

Detailed description

RFI of participants treated with adjuvant hormone therapy in the CANTO study, Incidence of Ipsilateral DCIS, Contralateral DCIS, Invasive contralateral breast cancer at 5, 8 and 10 years*, Distant disease free survival (DDFS) and relapse free survival (RFS) rates at 5, 8, 10 years and overall survival (OS) at 5, 10 years * (RFI, DDFS, RFS and OS defined as per standardized STEEP v2.0 criteria), EORTC QLQC30 and EORTC QLQ-BR42, HADS questionnaires, Bone-related events and osteopenia/osteoporosis diagnosis, dyslipidemia (hypercholesterolemia and hypertriglyceridemia) and cardiovascular events (myocardial infarction, stroke, and thromboembolic events), as per CTCAE v6.0.

Interventions

DRUGEXEMESTANE
DRUGANASTROZOLE
DRUGLETROZOLE
DRUGTAMOXIFEN

Sponsors

Unicancer
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Relapse-free interval (RFI) is defined as the delay between initial treatment and the first occurrence of i) ipsilateral breast tumor recurrence, ii) distant or locoregional recurrence or iii) death from breast cancer, according to the STEEP system definition version 2.0 (Tolaney SM et al., JCO 2021)

Secondary

MeasureTime frame
RFI of participants treated with adjuvant hormone therapy in the CANTO study, Incidence of Ipsilateral DCIS, Contralateral DCIS, Invasive contralateral breast cancer at 5, 8 and 10 years*, Distant disease free survival (DDFS) and relapse free survival (RFS) rates at 5, 8, 10 years and overall survival (OS) at 5, 10 years * (RFI, DDFS, RFS and OS defined as per standardized STEEP v2.0 criteria), EORTC QLQC30 and EORTC QLQ-BR42, HADS questionnaires, Bone-related events and osteopenia/osteoporosis diagnosis, dyslipidemia (hypercholesterolemia and hypertriglyceridemia) and cardiovascular events (myocardial infarction, stroke, and thromboembolic events), as per CTCAE v6.0.

Outcome results

None listed

Source: EU CTIS · Data processed: Apr 22, 2026