← Eichor
Study identifier: NCT07671885 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Evaluating the Response-Guided Therapy With Neoadjuvant Endocrine Therapy to Optimize Adjuvant Treatment in Premenopausal HR+/HER2- Breast Cancer (JCOG2402, Young HOPE)

Condition: Breast Cancer  ·  Sponsor: Tokyo Women's Medical University

PhasePhase 3
Planned participants950
Who can joinFemale, 18 Years to no upper limit
Healthy volunteersNo

About this study

Young HOPE/JCOG2402 is a multicenter, randomized phase III study designed to evaluate response-guided therapy following neoadjuvant endocrine therapy to optimize adjuvant treatment in premenopausal HR+/HER2- Breast Cancer. Premenopausal women with intermediate-risk HR-positive/HER2-negative breast cancer derive benefit from the addition of chemotherapy to endocrine therapy. However, previous studies have demonstrated that patients who achieve an endocrine response (Ki-67 ≤10%) following neoadjuvant endocrine therapy have excellent outcomes without chemotherapy, irrespective of menopausal status. These findings suggest that endocrine therapy response may serve as a predictive biomarker to identify premenopausal patients who can safely omit chemotherapy. The primary objective of this study is to evaluate the non-inferiority of an ET response-guided treatment strategy compared with standard surgery followed by adjuvant therapy. The study aims to increase the proportion of patients who can be treated with endocrine therapy alone by omitting chemotherapy in those with highly endocrine-sensitive disease. Eligible patients are randomized 1:1 to upfront surgery or neoadjuvant endocrine therapy with an aromatase inhibitor and ovarian function suppression. The primary endpoint is EFS. Secondary endpoints include overall survival, relapse-free survival, distant recurrrence-free survival, HR-QOL, the rate of endocrine therapy alone in adjuvant therapy, ET response rate in an Arm B, th…

This description comes directly from the study's public registry record.

Talk to the study team

Makiko Ono, MD  ·  +81333538111  ·  makikono@gmail.com

Always discuss trial participation with your own doctor first.

Locations (49)

Akita University HospitaAkita, JapanRecruiting
Chiba Cancer CenterChiba, JapanRecruiting
National Hospital Organization Kyushu Cancer CenterFukuoka, JapanRecruiting
Fukushima Medical University HospitalFukushima, JapanRecruiting
National Hospital Organization Fukuyama Medical CenterFukuyama, JapanRecruiting
Hamamatsu University School of MedicineHamamatsu, JapanNot Yet Recruiting
Kansai Medical University HospitalHirakata, JapanRecruiting
Hiroshima City North Medical Center Asa Citizens HospitalHiroshima, JapanRecruiting
Hiroshima University HospitalHiroshima, JapanRecruiting
Ibaraki Prefectural Central HospitalIbaraki, JapanRecruiting
Tokai University HospitalIsehara, JapanRecruiting
Social medical corporation Hakuaikai Sagara HospitalKagoshima, JapanRecruiting

+ 37 more locations — full list on the registry record.

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT07671885