CompletedNot Applicable

Molecular Imaging of HER2 Expression in HER2-positive Breast Cancer Using 99mTc-ADAPT6 vs 99mTc-DARPinG3

Russia15 participantsStarted 2022-05-01

Plain-language summary

An open-label, single center study with 99mTc-ADAPT6 and 99mTc-DARPinG3 SPECT and biopsies of primary tumour in HER2-positive Breast Cancer before system (chemo/targeted) therapy, where the primary endpoint of the study is to compare imaging properties of 99mTc-ADAPT6 and 99mTc-DARPin G3 SPECT in HER2-positive breast cancer patients.

Who can participate

Age range

18 Years – 80 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Subject is \> 18 years of age;
. Diagnosis of primary breast cancer with possible lymph node metastases before system (chemo+targeted therapy);
. Availability of results from HER2 status previously determined on material from the primary tumor: HER2-positive, defined as a DAKO HercepTest™ score of 3+ or FISH positive;
. Sequential injection of 99mTc-ADAPT6 and 99mTc-DARPinG3 in the interval of 3-4 days in each HER2-positive breast cancer patient;
. Hematological, liver and renal function test results within the following limits:
. 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;

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

99mTc-ADAPT6 uptake (counts)/SUV

Timeframe: 2 hours

99mTc-ADAPT6 tumor-to-background ratio (SPECT)

Timeframe: 2 hours

99mTc-DARPinG3 uptake (counts)/SUV

Timeframe: 4 hours

99mTc-DARPinG3 tumor-to-background ratio (SPECT)

Timeframe: 4 hours

99mTc-ADAPT6 vs 99mTc-DARPinG3 uptake (counts)/SUV

Timeframe: 2 and 4 hours

99mTc-ADAPT6 vs 99mTc-DARPinG3 tumor-to-background ratio (SPECT)

Timeframe: 2 and 4 hours

Trial details

NCT IDNCT05376644

SponsorTomsk National Research Medical Center of the Russian Academy of Sciences

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2022-12-31

View on ClinicalTrials.gov More Breast Cancer Female trials

Plain-language summary

Who can participate

Age range

18 Years – 80 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Subject is \> 18 years of age;
. Diagnosis of primary breast cancer with possible lymph node metastases before system (chemo+targeted therapy);
. Availability of results from HER2 status previously determined on material from the primary tumor: HER2-positive, defined as a DAKO HercepTest™ score of 3+ or FISH positive;
. Sequential injection of 99mTc-ADAPT6 and 99mTc-DARPinG3 in the interval of 3-4 days in each HER2-positive breast cancer patient;
. Hematological, liver and renal function test results within the following limits:
. 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;

What they're measuring

99mTc-ADAPT6 uptake (counts)/SUV

Timeframe: 2 hours

99mTc-ADAPT6 tumor-to-background ratio (SPECT)

Timeframe: 2 hours

99mTc-DARPinG3 uptake (counts)/SUV

Timeframe: 4 hours

99mTc-DARPinG3 tumor-to-background ratio (SPECT)

Timeframe: 4 hours

99mTc-ADAPT6 vs 99mTc-DARPinG3 uptake (counts)/SUV

Timeframe: 2 and 4 hours

99mTc-ADAPT6 vs 99mTc-DARPinG3 tumor-to-background ratio (SPECT)

Timeframe: 2 and 4 hours