BGB-43395 Plus Letrozole for Advanced Breast Cancer
BGB-43395 Plus Letrozole Versus CDK4/6i Plus Letrozole for Patients With Advanced or Metastatic HR+/HER2- Breast Cancer Who Have Not Received Prior Treatment for Advanced or Metastatic Disease
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Pivotal Trial
This treatment is in the last trial phase before FDA approval.
Prior Safety Data
This treatment has already been tested in at least one earlier human trial.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
18 and older
Sex
Any
Trial phase
Phase 3
Study type
Interventional
Purpose
Treatment
Participants needed
1,056 (estimated)
Sponsor
BeOne Medicines · Industry
Who this trial is looking for
This trial is looking for people with advanced breast cancer who have not been treated for it before. Participants will receive either BGB-43395 with letrozole or a different treatment option with letrozole.
Are You a Good Fit for This Trial?
You may be able to join if
I am at least 18 years old.
I have advanced or metastatic HR+/HER2- breast cancer.
I have stable overall health.
I have good organ function.
You may not be able to join if
I have received treatment for my advanced or metastatic breast cancer before.
I have taken certain medications targeting CDK4 or CDK2.
I have active leptomeningeal disease.
I have untreated brain metastasis.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
The purpose of this study is to investigate the efficacy and safety of BGB-43395 in combination with letrozole compared with investigator's choice of cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) in combination with letrozole in patients with advanced or metastatic hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) breast cancer (BC) who have not received p…
The purpose of this study is to investigate the efficacy and safety of BGB-43395 in combination with letrozole compared with investigator's choice of cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) in combination with letrozole in patients with advanced or metastatic hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) breast cancer (BC) who have not received prior systemic treatment for advanced or metastatic disease.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Participants must be at least 18 years of age or the legal age of consent in the jurisdiction in which the study is taking place at the time of signing the informed consent.
* Participants with histologically confirmed locally advanced or metastatic HR+ HER2- breast cancer.
* …
Inclusion Criteria:
* Participants must be at least 18 years of age or the legal age of consent in the jurisdiction in which the study is taking place at the time of signing the informed consent.
* Participants with histologically confirmed locally advanced or metastatic HR+ HER2- breast cancer.
* Participants must have a stable Eastern Cooperative Oncology Group (ECOG) Performance Status of ≤ 1.
* Adequate organ function.
Exclusion Criteria:
* Participants who have received prior systemic treatment in the advanced or metastatic setting.
* Participants who have received prior treatment with any selective cyclin-dependent kinase 4 (CDK4) or cyclin-dependent kinase 2 (CDK2) targeting agent, or any other investigational anticancer drug in any disease setting, except for prior investigational or approved SERDs in the adjuvant setting, provided that disease recurrence occurred more than 12 months after the last dose of endocrine-based therapy.
* Participants with active leptomeningeal disease or uncontrolled, untreated brain metastasis.
Note: Other protocol-defined inclusion/exclusion criteria may apply.
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