Clinical trials
CDK4/6 Inhibitor clinical trials
Below are recruiting cdk4/6 inhibitor clinical trials, each written for real people, not researchers. We’re tracking 51 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06176534RecruitingPhase 2
Comparing two treatments for advanced breast cancer with low hormone receptor
This trial compares two treatment options for advanced breast cancer that has low hormone receptor levels and is HER2-negative. It tests whether a combination of chemotherapy followed by maintenance therapy works better than a CDK4/6 inhibitor combined with hormone therapy. This is for people who have not had chemotherapy for their advanced disease.
Zhengzhou, HenanAges 18 years+ - NCT06065748RecruitingPhase 3
New hormone therapy for advanced breast cancer after prior treatment
This trial tests a new oral hormone therapy, giredestrant, against a standard hormone therapy (fulvestrant) when both are given with a CDK4/6 inhibitor. It is for people with advanced ER-positive, HER2-negative breast cancer that has come back after initial hormone therapy, and who have not yet had other treatments for advanced disease.
Daphne, AlabamaAges 18 years+ - NCT05759572RecruitingPhase 2
Apatinib plus hormone therapy for advanced breast cancer
This Phase 2 study tests whether apatinib combined with a CDK4/6 inhibitor and hormone therapy can better control advanced hormone receptor–positive, HER2-negative breast cancer. It may help shrink tumors or slow their growth, especially in cases that can’t be fully treated with surgery or radiation.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07180160RecruitingPhase 2
A study of QL1706 for HR-positive, HER2-negative breast cancer
This trial tests a new drug combination (iparomlimab and tuvonralimab, also called QL1706) for people with advanced breast cancer that is hormone receptor-positive and HER2-negative. It may be an option if standard treatments have stopped working.
ShanghaiAges 18 years+ - NCT05861830RecruitingPhase 3
Dalpiciclib plus hormone therapy after CDK4/6 treatment
This trial tests dalpiciclib together with hormone (endocrine) therapy in people with HR-positive, HER2-negative advanced breast cancer whose cancer has already responded poorly to a prior CDK4/6 inhibitor. It aims to see if this combination can better control the cancer after that earlier treatment has failed.
Beijing, Beijing MunicipalityAges 18–80 - NCT06481956Enrolling by invitationPhase 2
T-DM1 plus a CDK4/6 inhibitor (ribociclib) for HER2-positive breast cancer
This clinical trial tests a combination of two targeted therapies for people with HER2-positive breast cancer that has spread or come back. The goal is to see if adding ribociclib to T-DM1 is safe and effective after other treatments have been used.
Hangzhou, ZhejiangAges 18–75 - NCT06380751RecruitingPhase 3
New targeted therapy for BRCA/PALB2-mutated HR+ breast cancer
This trial tests a new combination of targeted therapies (saruparib plus camizestrant or hormone therapy) against standard treatments for people with a specific type of advanced breast cancer. It may be a good option if you have a BRCA1, BRCA2, or PALB2 gene mutation and have not yet had treatment for your advanced disease.
Gilbert, ArizonaAges 18 years+ - NCT06790693RecruitingPhase 3
Inavolisib plus hormone therapy for advanced breast cancer
This trial tests a new targeted therapy, inavolisib, combined with standard hormone therapy and a CDK4/6 inhibitor for people with a specific genetic mutation (PIK3CA) in their hormone receptor-positive, HER2-negative advanced breast cancer that has not been treated before. It compares this combination to a placebo plus the same standard treatments.
Goodyear, ArizonaAges 18 years+ - NCT07215364Recruiting
Exercise and quality of life in early breast cancer on hormone therapy
This trial tests if a supervised exercise program can improve quality of life for people with early-stage breast cancer who are currently taking hormone therapy (aromatase inhibitors with or without CDK4/6 inhibitors). It aims to see if exercise helps reduce side effects like fatigue and pain.
L'Hospitalet de Llobregat, BarcelonaAges 18 years+ - NCT07491380Recruiting
Blood monitoring for breast cancer drugs at home
This study tests a finger-prick blood test you can do at home to check levels of your breast cancer medication (ribociclib, abemaciclib, or palbociclib). The goal is to make monitoring easier and more convenient.
ParisAges 18 years+ - NCT03310879RecruitingPhase 2
Abemaciclib for advanced tumors with cyclin or CDK4/6 gene changes
This Phase 2 study tests abemaciclib, a targeted cancer medicine, in people with advanced solid tumors that have specific gene changes related to cyclin D or CDK4/6. The goal is to see how well it controls tumors when standard treatments don’t work or aren’t available.
Boston, MassachusettsAges 18 years+ - NCT04526587Recruiting
Study of breast cancer markers after CDK4/6 inhibitor treatment
This study looks at lab markers and clinical features in people with certain types of breast cancer who are being treated with, or have already been treated with a CDK4/6 inhibitor like abemaciclib (ciclib-based therapy). It aims to understand patterns that may help doctors better characterize breast cancer after these treatments.
Buffalo, New YorkAges 18 years+ - NCT04660435Recruiting
Study how breast cancers resist CDK4/6 inhibitor treatment
This study looks at why some ER-positive, HER2-negative metastatic breast cancers don’t respond well to CDK4/6 inhibitors combined with hormone therapy. It may help researchers understand resistance and improve future treatment choices for people like you.
Prato, TuscanyAges Any age - NCT05181033RecruitingPhase 2
Lenvatinib plus letrozole versus fulvestrant for metastatic breast cancer
This Phase 2 study compares a combination medicine (lenvatinib plus letrozole) against fulvestrant to treat metastatic estrogen-receptor positive, HER2-negative breast cancer after the cancer has grown despite hormone therapy plus a CDK4/6 inhibitor. It may help by finding a more effective treatment option after your first lines have stopped working.
SingaporeAges 18–99 - NCT06171360Recruiting
Gut bacteria and CDK4/6 inhibitor treatment in breast cancer
This study looks at how gut bacteria affect response to a type of targeted therapy (CDK4/6 inhibitors) combined with hormone therapy in breast cancer that is hormone receptor-positive and HER2-negative. It may help find out why some people respond better to treatment and could lead to better personalized care.
BrusselsAges 18–100 - NCT06377852RecruitingPhase 3
Dosing study for older adults with advanced breast cancer
This trial studies how well different doses of CDK4/6 inhibitors (palbociclib or ribociclib) work in people aged 65 or older with HR+/HER2- metastatic breast cancer. It aims to find the best starting dose to balance effectiveness and side effects.
Chandler, ArizonaAges 65 years+ - NCT06959979RecruitingEarly Phase 1
Studying New Treatments for Medulloblastoma
This trial is studying the genetic details of medulloblastoma tumors in children to find new, targeted treatments. If your child had surgery for medulloblastoma at our pediatric center, their tumor tissue may help us learn more.
Roma, ROMAAges birth–18 years - NCT07198724RecruitingPhase 1/Phase 2
A study of elacestrant plus Enhertu for advanced breast cancer
This trial tests a new combination of two targeted drugs (elacestrant and Enhertu) for people with a specific type of advanced breast cancer (HR-positive, HER2-low or ultra-low) that did not respond to standard treatments like CDK4/6 inhibitors. The goal is to see if this combination works better than current options.
Boston, MassachusettsAges 18 years+ - NCT06062498RecruitingPhase 2
Elacestrant alone or with a CDK4/6 inhibitor for advanced breast cancer
This trial compares a new hormone therapy (elacestrant) to the same therapy combined with a CDK4/6 inhibitor (palbociclib, abemaciclib, or ribociclib) for people with a specific type of advanced breast cancer (ER-positive, HER2-negative) that has a mutation in the ESR1 gene. It aims to see if the combination works better than the single drug.
Chicago, IllinoisAges 18 years+ - NCT07258108RecruitingPhase 2
Sac-TMT and KL-A167 for HR+/HER2- Breast Cancer
This trial is testing a combination of two drugs, Sac-TMT and KL-A167, in people with a certain type of advanced breast cancer (HR+/HER2-) that is PD-L1 positive. It's for those whose cancer has gotten worse after treatment with a CDK4/6 inhibitor and hormone therapy.
Guangzhou, GuangdongAges 18–75 - NCT07273357Recruiting
CDK4/6 inhibitors for older breast cancer patients
This study looks at how well older breast cancer patients (70 years and older) do when treated with a type of drug called a CDK4/6 inhibitor along with hormone therapy after surgery. The goal is to use simple health checks to help doctors decide if this treatment is right for you.
GävleAges 70 years+ - NCT07399808Recruiting
CDK4/6 Inhibitors in Older Breast Cancer Patients
This study looks at how well CDK4/6 inhibitors work in older adults with breast cancer who are taking these drugs after surgery to help prevent the cancer from coming back. It will follow patients over time to learn more about their experiences.
Pavia, PaviaAges 18 years+ - NCT07407439Recruiting
Real-world study of CDK4/6 inhibitors in advanced breast cancer
This study looks at how well CDK4/6 inhibitors (a type of targeted therapy) work in real-world patients with HR+/HER2- advanced breast cancer. By collecting medical data from people treated at this hospital, doctors hope to learn more about the effectiveness and safety of these drugs in everyday practice.
TianjinAges 18 years+ - NCT07581834RecruitingPhase 2
Dalpiciclib plus hormone therapy for early hormone-positive breast cancer
This study tests whether adding a new drug called dalpiciclib to standard hormone therapy improves outcomes for women with early-stage breast cancer that is hormone-receptor positive. The goal is to see if this combination is more effective and safe than hormone therapy alone.
Fuzhou, FujianAges 18 years+
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Common questions
- Are there clinical trials for cdk4/6 inhibitor?
- Yes. Clin2 currently lists 51 recruiting cdk4/6 inhibitor studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a cdk4/6 inhibitor trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a cdk4/6 inhibitor trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.