Can two cancer pills keep breast cancer from returning?
NCT ID NCT07180056
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is looking at whether taking a CDK4/6 inhibitor (either abemaciclib or ribociclib) after surgery can help prevent breast cancer from coming back in people with HR+/HER2- breast cancer. The researchers will follow 229 participants to see how long they stay cancer-free and what side effects occur. This is a real-world study, meaning it observes routine medical care rather than a controlled experiment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- CDK4/6 inhibitors (abemaciclib or ribociclib)
- What this could lead to
- If successful, this study could confirm that adding CDK4/6 inhibitors after surgery helps keep HR+/HER2- breast cancer from coming back.
- What could go wrong
- This is an observational real-world study, not a randomized controlled trial, so results may be less definitive. Side effects from these drugs can be significant, and not all patients may benefit.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 229 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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Feb 2033
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Breast cancer patients meeting current guideline recommendations and planning to receive adjuvant CDK4/6 inhibitors
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Aged ≥18 and older * Patients with pathologically confirmed breast cancer without distant metastasis or local recurrence * HR+/HER2- * ECOG 0-3 * Subjects meeting current guideline recommendations and planning to receive adjuvant CDK4/6 inhibitors Exclusion Criteria: * During pregnancy or lactation * Subjects that are unable to swallow tablets, or dysfunction of gastrointestinal absorption
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Renji Hospital, School of Medicine, Shanghai Jiaotong University
RECRUITINGShanghai, 200127, China
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