Evaluating CDK4/6 inhibitors for advanced breast cancer

Survival Outcomes, Adverse Events and Predictive Biomarkers for CDK4/6 Inhibitors in Patients With Hormone Receptor-positive Advanced Breast Cancer, an Ambispective Single-center Cohort Study

Observational RenJi Hospital · NCT05795335

This study is testing how well CDK4/6 inhibitors work and what side effects they cause in people with hormone receptor-positive advanced breast cancer.

Quick facts

Study typeObservational
Enrollment172 (estimated)
Ages18 Years and up
SexAll
SponsorRenJi Hospital Academic / other
Locations1 site (Shanghai, Shanghai Municipality)
Trial IDNCT05795335 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the survival outcomes and adverse events associated with CDK4/6 inhibitors in patients diagnosed with hormone receptor-positive advanced breast cancer. It will also investigate potential predictive biomarkers that may influence treatment efficacy. The study is ambispective and conducted at a single center, focusing on patients who have either received or are planning to receive CDK4/6 inhibitors for their advanced disease. Participants will be monitored for their health outcomes and any side effects experienced during treatment.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with hormone receptor-positive breast cancer that is locoregionally recurrent or metastatic and not suitable for curative therapy.

Not a fit: Patients who are unable to swallow pills or have a history of immunodeficiency disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the effectiveness and safety of CDK4/6 inhibitors, potentially improving treatment strategies for patients with advanced breast cancer.

How similar studies have performed: Other studies have shown promising results with CDK4/6 inhibitors in similar patient populations, indicating a potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged ≥18 and older
* Confirmed diagnosis of hormone receptor-positive breast cancer.
* Subjects with locoregionally recurrent or metastatic disease not amenable to curative therapy.
* Subjects have received or plan to receive CDK4/6 inhibitors for advanced disease.
* ECOG 0-2
* Adequate organ function

Exclusion Criteria:

* Subjects disable to swallow pills.
* History of immunodeficiency disease

Where this trial is running

Shanghai, Shanghai Municipality

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 CancerLocoregionally RecurrentMetastaticCDK4/6 Inhibitors
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.