Gene test may predict dangerous side effects in breast cancer treatment
NCT ID NCT07582887
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study explores whether certain gene variants (UGT1A1) increase the risk of severe side effects from powerful breast cancer drugs called antibody-drug conjugates. Researchers will enroll 70 adults with advanced breast cancer who are starting treatment with sacituzumab-govitecan, trastuzumab-deruxtecan, or datopotamab-deruxtecan. By analyzing participants' genes and tracking their side effects, the study aims to develop a way to predict who is most at risk, potentially leading to safer, more personalized treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Mar 2027
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
Patients with early, locally advanced, or metastatic breast cancer treated with antibody-drug conjugates in a real-world clinical setting at a single tertiary hospital.
- 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: * Patients aged 18 years or older. * Patients diagnosed with breast cancer starting or undergoing treatment with Sacituzumab Govitecan, Trastuzumab Deruxtecan, or Datopotamab Deruxtecan. * Provision of signed informed consent for the genetic study. Exclusion Criteria: * Patients who are ultimately not treated with the specified Antibody-Drug Conjugates. * Refusal to provide informed consent for genetic analysis.
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Genom att skicka in godkänner du våra Användarvillkor
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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Hospital Universitario Clínico San Cecilio
RECRUITINGGranada, Granada, 18016, Spain
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