Massive study aims to crack the code of metastatic breast cancer
NCT ID NCT03758976
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study is tracking 2,000 people with metastatic breast cancer to understand how the cancer changes over time and in response to treatment. Researchers will analyze tumor and blood samples to find genetic markers that predict which therapies work best. The goal is to develop better tools for personalizing care and overcoming drug resistance.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could lead to better ways to predict how metastatic breast cancer will behave and which treatments might work best for each patient.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't directly help participants. It may take years to produce useful results, and the findings might not apply to all patients.
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 2,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2019
- Expected to finish
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Dec 2030
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 diagnosed with metastatic, inoperable breast cancer.
- 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: 1. Patients with pathologically confirmed advanced breast cancer (ABC), including locally advanced inoperable disease and stage IV disease. 2. Age \> 18 years. 3. Performance status according to Eastern Cooperative Oncology Group (ECOG) ≤ 2. 4. ABC must be radiologically or clinically assessable, by means of at least one of the following techniques: clinical examination, computerized tomography (CT-scan), magnetic resonance imaging (MRI), bone scintigraphy or positron emission tomography (PET). 5. Patients must have a radiological evaluation done maximum 6 weeks prior to inclusion. 6. Signed informed consent according to ICH/GCP, and national/local regulations. Exclusion Criteria: Untreated psychiatric disorders that will impair the patient's ability to comply with study treatment or protocol.
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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
2 sites. 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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Lund University Hospital
RECRUITINGLund, 221 85, Sweden
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Lund University Hospital
RECRUITINGLund, 221 85, Sweden
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