Could a single injection replace biopsies for breast cancer?
NCT ID NCT07292571
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This phase 2 trial is testing a new imaging agent called [99mTc]Tc-ZHER2:4107 to see how well it can detect different levels of HER2 protein in breast cancer tumors. Fifty participants will receive one injection followed by a SPECT/CT scan. The goal is to improve diagnosis and help doctors choose the right treatment without needing a tissue biopsy.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Technetium-99m-labelled affibody [99mTc]Tc-ZHER2:4107
- What this could lead to
- If successful, this imaging method could help doctors better identify HER2 status in breast cancer without needing a biopsy, guiding more personalized treatment.
- What could go wrong
- This is a small early-phase trial with only 50 participants, so results may not apply to all patients. The imaging agent's accuracy and safety are still being tested.
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.
- 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 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Dec 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 to 80 years
- Sex
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Female participants only
- 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. Subject is \> 18 years of age 2. Availability of results from HER2 status previously determined on material from the primary tumor and metastatic LN, either a. HER2-positive, defined as a DAKO HercepTest™ score of 3+ or FISH positive or b. HER2-negative, defined as a DAKO HercepTest™ score of 0 or 1+; or else if 2+ then FISH negative 3. Hematological, liver and renal function test results within the following limits: * White blood cell count: \> 2.0 x 109/L * Hemoglobin: \> 80 g/L * Platelets: \> 50.0 x 109/L * ALT, ALP, AST: =\< 5.0 times Upper Limit of Normal * Bilirubin =\< 2.0 times Upper Limit of Normal * Serum creatinine: Within Normal Limits 4. A negative pregnancy test for all patients of childbearing potential. Sexually active women of childbearing potential participating in the study must use a medically acceptable form of contraception for at least 30 days after study termination 5. Subject is capable to undergo the diagnostic investigations to be performed in the study 6. Informed consent Exclusion Criteria: 1. Any system therapy (chemo-/targeted therapy) 2. Second, non-breast malignancy 3. Active current autoimmune disease or history of autoimmune disease 4. Active infection or history of severe infection within the previous 3 months (if clinically relevant at screening), known HIV positive or chronically active hepatitis B or C 5. Administration of other investigational medicinal product within 30 days of screening 6. Ongoing toxicity \> grade 2 from previous standard or investigational therapies, according to US National Cancer Institute's
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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
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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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Cancer Research Institute of Tomsk National Research Medical Center of the Russian Academy of Sciences
Tomsk, Russia
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Other studies related to the condition(s) this trial covers.
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