Breast cancer drug schedule showdown: continuous vs. intermittent dosing
NCT ID NCT07180082
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two ways of taking the drug pyrotinib for people with HER2-positive advanced breast cancer: taking it every day (continuous) or taking breaks (intermittent). The goal is to see which schedule works better and has fewer side effects. About 186 adults whose cancer has spread or cannot be removed by surgery will participate.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 186 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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Sep 2029
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.
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age≥18 years old * Pathologically confirmed advanced or locally advanced breast cancer not amenable to curative surgery * Pathologically confirmed HER2+ at least once for either primary or metastatic lesion * Previously treated with any number of lines for advanced disease and eligible for a pyrotinib-containing regimen at the discretion of physician * At least one measurable lesion or bone-only disease (osteolytic or mixed) according to RECIST v1.1 * ECOG 0-1 * Adequate organ function Exclusion Criteria: * During pregnancy and lactation * Difficulties with pyrotinib administration or 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
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can an oral drug replace injections for advanced breast cancer?
- Two-Drug HER2 attack vs one: which First-Line strategy helps advanced breast cancer patients live longer?
- Can a daily pill help breast cancer that outsmarts two antibody drugs?
- Can a new drug combo outsmart breast cancer that resists current therapy?
- Can a new tracer make tumors light up on scans?
- Can fasting and exercise beat cancer fatigue?