Can a simple blood test predict cancer risk from radiation therapy?
NCT ID NCT06510868
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is for people with neuroendocrine tumors who are about to receive or have already received peptide receptor radionuclide therapy (PRRT). Researchers want to find out if certain genetic changes in the blood can predict who might later develop myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML), two types of blood cancer. About 45 participants will give blood samples over several years to look for these genetic markers. The goal is not to treat the blood cancers, but to better understand the risks and improve patient care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help doctors identify which patients are at higher risk of developing blood cancers after PRRT, allowing safer treatment choices.
- What could go wrong
- This is a small observational study, not a treatment trial. It may not find clear genetic markers, and results may not apply to all patients or treatments.
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.
- Participants
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About 45 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Jun 2029
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.
Who is studied
This research proposes to study the genetic changes that occur pre-PRRT and post-PRRT using blood samples obtained from a patient population at Princess Margaret Hospital. Cohort A will consist of 20 patients that have had PRRT within the past 4 years. Cohort B will consist of 20 patients planned for PRRT. Cohort C will consist of 1-5 patients post PRRT, diagnosed with t-MN. In other words, patients will already be receiving PRRT or have received PRRT within 4 years.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- 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.
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: * ECOG 0-3 * Life expectancy \> 6 months * Informed consent and willingness to undergoing serial genetic panel CHIP testing. * Cohort Specific criteria 1. Cohort A: PRRT completed within 5 years of enrolment 2. Cohort B: PRRT planned to commence within 4 months of enrolment 3. Cohort C: diagnosis of MDS or AML following prior PRRT. Exclusion Criteria: * Unwillingness to provide blood sample and follow up as per protocol
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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
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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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Princess Margaret Cancer Centre
RECRUITINGToronto, Ontario, M5G 2M9, Canada
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