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New treatment option for Breast Cancer
Official title A Study of GB491 in Combination With Letrozole in Patients With HR Positive and HER2 Negative Advanced Breast Cancer
ClinicalTrials.gov ID: NCT05851014
What this study is testing
What is GB491 combined with Letrozole?
GB491 combined with Letrozole is an investigational medicine, given as an once-daily pill taken by mouth, being studied as a potential treatment for breast cancer.
Plain-language explanation of the investigational treatment - it is being studied and is not an approved or proven therapy. The study team can confirm the details.
- What it's testing
- The main purpose of this study is to evaluate the efficacy and safety of GB491 combined with Letrozole versus placebo combined with Letrozole in the treatment of HR+/HER2- locally advanced or metastatic breast cancer without prior systemic antitumor therapy
- Phase 3: a large, late-stage study
- You might receive a placebo (an inactive treatment) instead of the study drug.
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Ages 18 to 75
You may be able to join if
- 1\. Age: 18-75 years old;
- Have a pathologically-confirmed diagnosis of hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer;
- No previous systematic antitumor therapy for locally advanced or metastatic breast cancer;
- Eastern Cooperative Oncology Group [ECOG] 0-1;
- Have adequate organ and marrow function;
You likely can't join if
- Systematic treatment with any other CDK4/6 inhibitor；
- people with known allergy to GB491 or any component of Letrozole；
- Confirmed diagnosis of HER2 positive disease;
- Known uncontrolled, or symptomatic central nervous system metastases;
- Had major surgery (or is expected to require major surgery during the study period), chemotherapy, radiation, any investigational drug, or other...
- Have previously received chemotherapy for locoregionally recurrent or metastatic breast cancer;
See the full eligibility criteria
- 1\. Age: 18-75 years old;
- Have a pathologically-confirmed diagnosis of hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer;
- No previous systematic antitumor therapy for locally advanced or metastatic breast cancer;
- Eastern Cooperative Oncology Group [ECOG] 0-1;
- Have adequate organ and marrow function;
- Agree to sign the informed consent;
- Systematic treatment with any other CDK4/6 inhibitor；
- people with known allergy to GB491 or any component of Letrozole；
- Confirmed diagnosis of HER2 positive disease;
- Known uncontrolled, or symptomatic central nervous system metastases;
- Had major surgery (or is expected to require major surgery during the study period), chemotherapy, radiation, any investigational drug, or other antitumor therapy within 4 weeks prior to randomization;
- Have previously received chemotherapy for locoregionally recurrent or metastatic breast cancer;
- Clinically significant cardiovascular and cerebrovascular diseases, including but not limited to severe acute myocardial infarction within 6 months before enrollment, unstable or severe angina, Congestive heart failure...
- Known history of HIV infection or HIV seropositivity (including HIV antibody positive at the time of screening)
The study team makes the final eligibility decision.
Where it's taking place
- Bengbu, Anhui, China
- Hefei, Anhui, China
- Beijing, Beijing Municipality, China
- Chongqing, Chongqing Municipality, China
- Fuzhou, Fujian, China
- Wenzhou, Fujian, China
- Xiamen, Fujian, China
- Foshan, Guangdong, China
- Guangzhou, Guangdong, China
- Meizhou, Guangdong, China
- Nanning, Guangxi, China
- Haikou, Hainan, China
- Xingtai, Hebei, China
- Luoyang, Henan, China
- Zhengzhou, Henan, China
- Wuhan, Hubei, China
- Changsha, Hunan, China
- Nanjing, Jiangsu, China
- Ganzhou, Jiangxi, China
- Nanchang, Jiangxi, China
+ 18 more site(s).
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 18 years to 75 years. The study team makes the final eligibility decision.
Where is this trial taking place?
Study sites include Bengbu, Anhui, China; Hefei, Anhui, China; Beijing, Beijing Municipality, China; Chongqing, Chongqing Municipality, China; Fuzhou, Fujian, China; Wenzhou, Fujian, China and 32 more location(s). Enter your location above to see the nearest site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from ClinicalTrials.gov; the study team decides eligibility.