New scan could spot breast cancer markers without a needle
NCT ID NCT05412446
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a new imaging agent called 99mTc-ADAPT6 in 30 women with breast cancer that had spread to lymph nodes. The agent is designed to attach to HER2 proteins on cancer cells, allowing doctors to see them on a SPECT scan. The goal was to see if the scan results matched standard biopsy tests for HER2 status. If it works, this could offer a less invasive way to check HER2 levels in tumors and lymph nodes.
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 ADAPT6 (99mTc-ADAPT6)
- What this could lead to
- If successful, this imaging method could help doctors see HER2 levels in breast cancer without needing a biopsy, guiding treatment decisions.
- What could go wrong
- This is a small, early-phase study with only 30 participants, so results may not apply to all patients. The imaging agent may not match biopsy results perfectly.
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
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
30 people
The number who actually took part.
- Started
-
May 2022
- Finished
-
Dec 2022
- 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.
- Ages
-
18 to 80 years
- Sex
-
Female participants only
- Healthy volunteers
-
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. Diagnosis of primary breast cancer with lymph node metastases 3. 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 4. 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 5. 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 7\. Subject is capable to undergo the diagnostic investigations to be performed in the study 8. 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) 4. 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.
Contacts and locations
Locations
-
Tomsk NRMC
Tomsk, Russia
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