RecruitingPhase 2NCT05296746

Neoadjuvant and Adjuvant Ribociclib and ET for Clinically High-risk ER+ and HER2- Breast Cancer

Neoadjuvant and Adjuvant Ribociclib and Endocrine Therapy for Clinically High-risk Estrogen Receptor-positive (ER+) and HER2-negative (HER2-) Breast Cancer


Sponsor

SOLTI Breast Cancer Research Group

Enrollment

1,100 participants

Start Date

May 3, 2022

Study Type

INTERVENTIONAL

Conditions

Summary

This is an open-label, multicenter international trial in men and women with primary operable HR+/HER2-, ki67≥20%, grade 2 or 3 and stage II breast cancer to evaluate safety and long-term efficacy of a non-chemo treatment in patients biologically responders to neoadjuvant ribociclib and letrozole. This study aims to evaluate whether chemotherapy could be avoided for initial high-risk clinicopathological breast cancer patients that are converted to low genomic risk assessed by Risk of Recurrence-low (ROR-low) at 6 months of letrozole - ribociclib neoadjuvant treatment by continuing with this treatment in adjuvant setting.


Eligibility

Min Age: 18 Years

Plain Language Summary

Simplified for easier understanding

This study tests whether adding a targeted drug called ribociclib (a CDK4/6 inhibitor) to standard hormone therapy — both before surgery (neoadjuvant) and after surgery (adjuvant) — improves outcomes in people with hormone receptor-positive, HER2-negative breast cancer that is at high risk of coming back. **You may be eligible if...** - You are a man aged 18 or older, a premenopausal woman aged 40 or older, or a postmenopausal woman - You have clinically high-risk ER-positive, HER2-negative breast cancer (confirmed by biopsy) - You have not yet received treatment for this breast cancer - Premenopausal patients and men will also receive a hormone-suppressing injection (LHRH agonist) during treatment **You may NOT be eligible if...** - You have already received treatment for this breast cancer - You have metastatic (stage IV) breast cancer - You have significant liver, kidney, or heart problems - You are pregnant or breastfeeding Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DRUGRibociclib (neoadjuvant)

Ribociclib 600 mg/day + letrozole during neoadjuvant phase.

DRUGChemotherapy (adjuvant)

Adjuvant chemotherapy. 3 regimens are permitted.

DRUGRibociclib (adjuvant)

Ribociclib 400 mg/day + letrozole (or other aromatase inhibitor) during adjuvant phase.


Locations(51)

Sainte Catherine - Institut du Cancer Avignon Provence

Avignon, France

Centre Hospitalier de la Côte Basque

Bayonne, France

Centre Hospitalier Universitaire de Besancon

Besançon, France

Hôpital Simone veil de Blois

Blois, France

Centre François Baclesse

Caen, France

Centre Hospitalier de Cholet

Cholet, France

Centre Jean Perrin

Clermont-Ferrand, France

Centre Georges François Leclerc

Dijon, France

Centre Hospitalier Universitaire de Grenoble Alpes

Grenoble, France

Hôpital Franco Britanique Fondation Cognacq Jay

Levallois-Perret, France

Centre Oscar lambret

Lille, France

Centre Hospitalier Universitaire de Limoges

Limoges, France

Centre Léon Berard

Lyon, France

Hôpital privé Jean Mermoz

Lyon, France

Institut Paoli Calmettes

Marseille, France

Hôpital privé de Confluent

Nantes, France

Institut Curie

Paris, France

Centre Hospitalier Universitaire de Poitiers

Poitiers, France

Centre Hospitalier les Cornouaille

Quimper, France

Institut Jean Godinot

Reims, France

Centre Eugène Marquis

Rennes, France

Institut Curie

Saint-Cloud, France

Centre Hospitalier Privé Saint-Grégoire

Saint-Grégoire, France

Clinique Mutualiste de l'Estuaire - Groupe HGO

Saint-Nazaire, France

Clinique Sainte Anne - Strasbourg Oncologie Libérale

Strasbourg, France

Institut de cancérologie Strasbourg Europe - ICANS

Strasbourg, France

Hopitaux du Léman

Thonon-les-Bains, France

Clinique Pasteur

Toulouse, France

Institut Claudius Regaud, IUCT-Oncopole

Toulouse, France

Nouvelle Clinique des Dentellières

Valenciennes, France

Institut de Cancérologie de Lorraine

Vandœuvre-lès-Nancy, France

Centre Hospitalier Bretagne Atlantique

Vannes, France

Gustave Roussy

Villejuif, France

Hospital da Luz

Lisbon, Portugal

Hospital de São Francisco Xavier

Lisbon, Portugal

IPO Porto

Porto, Portugal

Hospital Son Espases

Palma de Mallorca, Balearic Islands, Spain

ICO Badalona

Badalona, Barcelona, Spain

ICO Hospitalet

L'Hospitalet de Llobregat, Barcelona, Spain

Hospital Clinic de Barcelona

Barcelona, Spain

Hospital Vall d'Hebron

Barcelona, Spain

Hospital Universiatrio Clínico San Cecilio

Granada, Spain

Complejo Asistencial Universitario de León

León, Spain

Fundación Jiménez Díaz

Madrid, Spain

HM Sanchinarro

Madrid, Spain

Hospital 12 de Octubre

Madrid, Spain

Hospital Ramón y Cajal

Madrid, Spain

Complejo Asistencial Universitario de Salamanca

Salamanca, Spain

Hospital Universitario Virgen del Rocío

Seville, Spain

Hospital Clínico de Valencia

Valencia, Spain

Instituto Valenciano de Oncología

Valencia, Spain

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NCT05296746


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