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New data on targeted breast cancer drugs from everyday practice
NCT ID NCT06504719
First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This completed study looked at 312 patients with advanced breast cancer who received either trastuzumab deruxtecan or sacituzumab govitecan. Researchers collected real-world information on side effects and how long the cancer was kept under control. The goal was to see how these drugs perform outside of clinical trials.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- trastuzumab deruxtecan and sacituzumab govitecan (antibody-drug conjugates)
- What this could lead to
- If the results are positive, this could help doctors better understand how these drugs work in everyday practice and guide treatment decisions for advanced breast cancer.
- What could go wrong
- This is an observational study, not a controlled trial, so results may be influenced by patient selection and other factors. It does not prove cause and effect.
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
-
312 people
The number who actually took part.
- Started
-
Jan 2023
- Finished
-
Sep 2024
- Lead sponsor
-
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
This study includes patients with histologically confirmed metastatic/recurrent breast cancer. Patients need to have received treatment with T-DXd and/or SG at Departments of Oncology in Departments of Oncology associated with the Hellenic Cooperative Oncology Group (HeCOG). Eligible patients are 18 years or older, diagnosed with triple-negative (TNBC), HER2-positive and/or hormone receptor positive advanced breast cancer, who received an ADC at any of line of treatment. Patients who received at least one cycle of T-DXd and/or SG are included. Immunohistochemical markers may be determined locally. Treatment with T-DXd and SG is administered per national guidelines.
- Ages
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
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: * Histologically confirmed metastatic/recurrent breast cancer * 18 years of age * Triple-negative (TNBC), HER2-positive and/or hormone receptor positive advanced breast cancer * Treatment with an ADC at any of line of treatment * Treatment with at least one cycle of T-DXd and/or SG Exclusion Criteria: * NA
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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.
Contacts and locations
Locations
-
Hellenic Cooperative Oncology Group
Athens, 11524, Greece
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