Predicting recurrence in high-risk hormone receptor-positive breast cancer patients receiving extended endocrine therapy

A Newly Discovered Clinical Recurrence Predictor for High-risk Hormone Receptor-positive Breast Cancer: a Real Word Study

Observational Shengjing Hospital · NCT04476485

This study is trying to find out what factors can predict the chances of breast cancer coming back in high-risk patients who have finished their standard hormone therapy and are receiving extended treatment.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
Ages18 Years to 70 Years
SexFemale
SponsorShengjing Hospital Academic / other
Drugs / interventionschemotherapy
Locations12 sites (Harbin, Heilongjiang and 11 other locations)
Trial IDNCT04476485 on ClinicalTrials.gov

What this trial studies

This observational study aims to identify predictors for the recurrence of high-risk hormone receptor-positive breast cancer in patients who have completed a standard 5-year endocrine therapy regimen. It focuses on patients who meet specific high-risk criteria, such as tumor size and lymph node involvement, to evaluate the effectiveness of extended endocrine therapy with aromatase inhibitors. The study will analyze data from various hospitals to determine the long-term outcomes and recurrence rates in this patient population. By understanding these predictors, the study seeks to improve treatment strategies for patients at risk of recurrence.

Who should consider this trial

Good fit: Ideal candidates for this study are women aged 18-70 with early-stage invasive hormone receptor-positive breast cancer who have completed 5 years of standard endocrine therapy without recurrence.

Not a fit: Patients with a history of other malignancies or severe organ dysfunction may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more personalized treatment plans that reduce the risk of breast cancer recurrence in high-risk patients.

How similar studies have performed: Previous studies have shown success with extended endocrine therapy in similar patient populations, indicating a promising approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* early-stage invasive breast cancer positive for estrogen receptor and / or progesterone receptor is pathologically confirmed;
* patients who have completed standard endocrine therapy for 5 years without recurrence and metastasis;
* 18-70 years old;
* patients with one of the following six manifestations: KI67 ≥ 30%; tumor size \> 2 cm; positive lymph nodes; histological grade III; vascular cancer thrombus; HER-2 gene overexpression or amplification.

Exclusion Criteria:

* with a history of other malignancies;
* patients who have severe abnormalities in important organs, such as the heart, liver, and kidney or who cannot be tolerant to extended treatment due to poor constitution;
* patients with severe osteoporosis or dyslipidemia, or those who cannot tolerate endocrine therapy ;
* patients who have participated in other clinical trials.

Where this trial is running

Harbin, Heilongjiang and 11 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast Cancerreceptor, estrogenendocrine therapyaromatase inhibitor
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.