Weekly scans may make proton therapy safer for kids with cancer
NCT ID NCT07514819
First seen Jun 26, 2026 · Last updated Aug 21, 2026 · Updated 3 times
Summary
This study will enroll 100 children with solid tumors or Hodgkin lymphoma who are receiving proton therapy. Researchers will take weekly or bi-weekly CT or MRI scans during treatment to check if the original radiation plan is still accurate. If tumor coverage drops by 5% or radiation to healthy organs rises by 10%, the plan will be updated. The goal is to see how often adjustments are needed and which tumors change most during treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Proton therapy with adaptive replanning
- What this could lead to
- If successful, this approach could make proton therapy more precise for children, potentially reducing damage to healthy tissues and improving tumor control.
- What could go wrong
- This is an early-stage observational study with no control group, so it cannot prove that adaptive planning improves outcomes. The findings may not apply to all tumor types or treatment centers.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2026
- Expected to finish
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Aug 2031
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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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: * Participants diagnosed with solid tumors, including Rhabdomyosarcoma, Osteosarcoma, Ewing sarcoma, other sarcomas and carcinomas or also Hodgkin's lymphoma. * Participants who receive proton radiation therapy at St. Jude Children's Research Hospital. * Research participant or legal guardian/representative gives written informed consent. Exclusion Criteria: * Participants who are not diagnosed with solid tumors or Hodgkin's lymphoma. * Participants who are diagnosed with Wilm's tumor or neuroblastoma * Participants who do not undergo proton therapy. * Participants who are prescribed equal or less than 5 fractions of proton therapy. * Participants with severe comorbid conditions that may impact imaging feasibility. * Inability to obtain written consent from research participant or legal guardian/representative. * Females of child-bearing potential cannot be pregnant or breast-feeding. Female participants \>10 years of age or post-menarchal must have a negative serum or urine pregnancy test All participants receiving proton therapy at St. Jude Children's Research Hospital will be screened for participation on this research protocol based on the Inclusion Criteria and the Exclusion Criteria. Qualified candidates will be selected during the consultation.
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Genom att skicka in godkänner du våra Användarvillkor
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 study's own enquiry address
This study publishes an address for enquiries. See it below .
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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
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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St. Jude Children's Research Hospital
RECRUITINGMemphis, Tennessee, 38105, United States
Contact Email: •••••@•••••
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