Can precision radiation halt spinal tumors before they cripple?
NCT ID NCT07809672
First seen Sep 09, 2026 · Last updated Sep 10, 2026 · Updated 1 time
Summary
Researchers are testing stereotactic body radiation therapy (SBRT) in adults whose cancer has spread to the spine and is pressing on the spinal cord. SBRT delivers high doses of radiation precisely to the tumor while limiting damage to nearby tissue. The trial enrolls 50 participants across multiple centers and gives treatment once daily over one to two weeks using the CyberKnife system. The main goal is to see whether the tumor stays controlled in the treated area and to track side effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- stereotactic body radiation therapy (SBRT), a focused high-dose radiation treatment
- What this could lead to
- If it works, SBRT could offer a non-surgical way to control spinal tumors that press on the spinal cord and help patients avoid or delay surgery.
- What could go wrong
- This is a single-arm phase II study with 50 participants, so it cannot prove SBRT is better than other options. Radiation near the spinal cord carries risks of nerve damage, and tumors may still grow back in the treated area.
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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 50 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2028
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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18 years and older
- 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 must be capable of understanding and voluntarily signing the written informed consent form;· Age ≥ 18 years;· (ECOG) performance status score ≤ 3;· The primary tumor is histologically or cytologically confirmed as a solid malignant tumor (excluding multiple myeloma, lymphoma, and germ cell tumors);· Has clear radiological evidence of spinal metastases;· Has acceptable spinal stability (Spinal Instability Neoplastic Score \[SINS\] ≤ 6, or between 7-12 but assessed as stable by surgical consultation), or has previous spinal instability that has been determined to be stable after surgical intervention;· Bilsky grade of spinal metastases confirmed by magnetic resonance imaging (MRI) as 1c-3;· Number of consecutive involved vertebral segments ≤ 3;· The involved vertebral level is above the conus medullaris;· Laboratory tests indicate adequate organ function. Exclusion Criteria: * ·Histologically confirmed primary spinal tumor or central nervous system disease;· Intramedullary lesions;· Prior radiotherapy to the same vertebral level;· Presence of contraindications to MRI examination;· Unable to lie flat for ≥ 30 minutes;· Presence of other severe comorbidities, such as uncontrollable cardiovascular disease, pulmonary disease, or other organ dysfunction, with poor overall health status and intolerance to treatment;· Pregnant or breastfeeding women;· Currently participating in other interventional clinical research treatments, or having received other investigational drugs or investigational device treatments within 4 weeks prior to the first treatment.
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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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Tianjin Medical University Cancer Institute and Hospital
RECRUITINGTianjin, China
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Other studies related to the condition(s) this trial covers.
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