New PET tracer may spot hard-to-find breast cancer spread
NCT ID NCT05931302
First seen Jun 27, 2026 · Last updated Jul 08, 2026 · Updated 2 times
Summary
This study tests whether a newer PET scan tracer (68Ga-FAPI-46) is better than the standard one (18F-FDG) at finding how far lobular breast cancer has spread. About 40 adults with untreated lobular breast cancer will get both scans, and doctors will compare how many tumor spots each scan finds. The goal is to improve initial staging so treatment can be more accurate.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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40 people
The number who actually took part.
- Started
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Nov 2023
- Expected to finish
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Nov 2026
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 greater than or equal to 18 years * ECOG from 0 to 2 * Histological diagnosis of Lobular Carcinoma of the breast based on a breast biopsy * Patient naïve to any treatment for lobular breast carcinoma * Women of childbearing age should have an adequate method of contraception * Patient having voluntarily accepted to participate in the study and signed the informed consent * Minimum tumor stage IIA * Sufficient histological material in the biopsy or the surgical specimen, if the biopsy is insufficient Exclusion Criteria: * PET scan contraindications: severe claustrophobia, unbalanced diabetes during 18F-FDG PET scans (fasting capillary blood sugar ≥ 11 mmol) * Hormone therapy started * 18F-FDG PET scan \> 21 days * Pregnant women, parturients and nursing mothers * Persons deprived of liberty by a judicial or administrative decision * Persons admitted to a health or social establishment for purposes other than research * Adults who are the subject of a legal protection measure or who are unable to express their consent
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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
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Centre Hospitalier Princesse Grace
Monaco, 98000, Monaco
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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