New scan could light up hidden cancers
NCT ID NCT04746638
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This completed phase 1 study tested a new radioactive imaging agent called 99mTc-RM26 in 10 people with prostate or breast cancer. The goal was to see how the agent spreads in the body and whether it can help spot tumors using SPECT scans. Researchers also checked for safety and compared the results with standard imaging like CT or MRI.
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 RM26 (99mTc-RM26)
- What this could lead to
- If successful, this imaging method could provide a new way to spot certain cancers, potentially improving diagnosis and treatment planning.
- What could go wrong
- This is a very early, small study with only 10 participants. It is designed to test safety and basic imaging ability, not to prove effectiveness. The results may 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.
- Phase
-
Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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10 people
The number who actually took part.
- Started
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Feb 2021
- Finished
-
Jun 2023
- 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
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18 to 70 years
- Sex
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Anyone
- 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: * Subject is \> 18 years of age * Clinical and radiological diagnosis of prostate cancer and breast cancer with histological verification. * White blood cell count: \> 2.0 x 10\^9/L * Haemoglobin: \> 80 g/L * Platelets: \> 50.0 x 10\^9/L * Bilirubin =\< 2.0 times Upper Limit of Normal * Serum creatinine: Within Normal Limits * Blood glucose level not more than 5.9 mmol/L * A negative pregnancy test (serum beta-human chorionic gonadotropin, beta-HCG) at screening 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 * Subject is capable to undergo the diagnostic investigations to be performed in the study * Informed consent Exclusion Criteria: * Active current autoimmune disease or history of autoimmune disease * 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 * Administration of other investigational medicinal product within 30 days of screening * 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
-
TomskNRMC
Tomsk, Russia
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Other studies related to the condition(s) this trial covers.
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