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Spine MetastasisNCT07346170

Short Interval Postoperative Stereotactic Body Radiation Therapy (SBRT) After Surgical Intervention for Spine Metastases

A study testing Stereotactic Body Radiation Therapy (SBRT), Computed Tomography (CT) Simulation and Magnetic Resonance Imaging (MRI) in people with Spine Metastasis and Stereotactic Body Radiation Therapy (SBRT), run by University of California, San Francisco at 1 site in United States.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Current guidelines suggest postoperative spine Stereotactic Body Radiation Therapy (SBRT) should be delivered within 2-4 weeks after surgery. This approach is rife with logistical complications that create delays and barriers for patients accessing care. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Stereotactic Body Radiation Therapy (SBRT), Computed Tomography (CT) Simulation and Magnetic Resonance Imaging (MRI)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteUnited States
Study dates
1 Nov 2026to 30 Nov 2029
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participants must have a histologically or cytologically confirmed diagnosis of metastatic malignancy or must have preliminary histology or cytology consistent with a diagnosis of metastatic malignancy.
  • Participants must be considered candidates for postoperative SBRT by the treating radiation oncologist.
  • Participants must have undergone, within the past 13 days, or are planned to undergo minimally invasive or open surgery for the management of a spine metastasis.
  • Disease at any spine level is allowed.
  • Prior therapy
  • There is no limit on the number of prior spine surgeries or prior courses of radiotherapy directed at the spine if prior therapies occurred at different spinal levels outside the anticipated treatment field.
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  • There is no limit on the number of courses or types of radiotherapy for radiation delivered outside the planned treatment field.
  • Cleared by the primary surgical team for postoperative SBRT, including but not limited to hemodynamic, respiratory, and neurologic stability postoperatively, without immediate postoperative complications noted.
  • Age ≥18 years.
  • Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 (Karnofsky ≥ 70%, see Appendix 1) 1 month prior to presentation for surgery.
  • Estimated survival >3 months or survival considered adequate to undergo spine surgery as assessed by the primary surgical team.
  • Ability to understand and the willingness to sign a written informed consent document.
  • Ability to understand and willingness to comply with treatment schedule, follow-up visits, laboratory testing, and other requirements of the study, including disease assessment by MRI.
  • Individuals with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial.
  • The effects of radiation on the developing human fetus are generally considered detrimental. Because the radiation therapy used in this trial is known to be teratogenic, individuals of reproductive potential must agree to use adequate contraception (e.g., hormonal or barrier methods, abstinence) for the duration of study participation and for at least 120 days after the last administration of radiation therapy. Should a study participant or their partner become pregnant or suspect pregnancy while participating in this study, they should inform their treating physician immediately.

Who cannot join

  • An individual who meets any of the following criteria will be excluded from participation in this study:
  • Prior radiation of any type within the anticipated treatment field (prior radiation outside the anticipated field is acceptable as above).
  • Primary malignancy of the spine (examples: chordoma or sarcoma).
  • Persistent high-grade metastatic spinal cord compression following surgery (Bilsky Grade 3 or higher).
  • Involvement of 3 or more contiguous spinal levels.
  • Involvement of more than 2 non-contiguous spinal levels.
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  • American Spinal Injury Association Impairment Scale (ASIA) Grade 3 status.
  • Surgery was a biopsy only.
  • Unable to undergo MRI for any reason.
  • Estimated survival <3 months.
  • Active infection requiring systemic therapy.
  • Active wound complication requiring medical intervention.
  • History of radiation-induced myelopathy from prior spine radiation.
  • History of a collagen vascular disorder (examples: lupus, scleroderma).
  • History of psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.
  • . A woman of childbearing potential (WOCBP) who has a positive urine pregnancy test within 72 hours prior to allocation. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • University of California, San Francisco

    San Francisco, California, 94143

    Imani Dunn, Imani.Dunn@ucsf.edu

    877-827-3222, cancertrials@ucsf.edu

Other trials in United States

About this study

Official title: A Phase 2 Study of Short Interval Postoperative Stereotactic Body Radiation Therapy (SBRT) After Surgical Intervention for Spine Metastases

Current guidelines suggest postoperative spine Stereotactic Body Radiation Therapy (SBRT) should be delivered within 2-4 weeks after surgery. This approach is rife with logistical complications that create delays and barriers for patients accessing care. An alternative approach delivers postoperative spine SBRT soon after surgery, starting within a single hospital stay. This study will investigate the effects of short-term postoperative spine SBRT on wound complications in a safety lead-in, then will transition to a phase 2 trial investigating local tumor control.

Read the detailed description

PRIMARY OBJECTIVE:

  1. To evaluate the local control rate (LC) of treated metastatic sites in patients who undergo surgery for spinal metastasis followed by short interval postoperative spine Stereotactic Body Radiation Therapy (SBRT).

SECONDARY OBJECTIVE:

  1. Evaluate the postoperative wound complication rate in participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT.

II. Determine the radiation toxicity of short-interval postoperative spine SBRT in participants.

III. Determine the progression-free survival (PFS) in participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT.

IV. Determine the overall survival (OS) in participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT.

  1. Evaluate the quality of life (QoL) of participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT.

OUTLINE: Participants will received a short interval postoperative SBRT 3-14 days after standard of care surgery for spinal metastases. The SBRT treatment will be delivered up to five sessions in an inpatient or outpatient setting. Participants are follow-up for at month 1, 6, and 12 after SBRT, until removal from study or death, whichever comes first.

Being tested
Stereotactic Body Radiation Therapy (SBRT), Computed Tomography (CT) Simulation, Magnetic Resonance Imaging (MRI), Questionnaires

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Stereotactic Body Radiation Therapy (SBRT)Radiation

    Undergo radiation

  • Computed Tomography (CT) SimulationProcedure or surgery

    Undergo imaging

  • Magnetic Resonance Imaging (MRI)Procedure or surgery

    Undergo imaging

  • QuestionnairesBehavioural

    Participant complete health related, quality of life questionnaire (HRQoL)

Study groups in NCT07346170
Study groupRoleWhat they receive
Treatment - Decompression SurgeryExperimentalParticipants diagnosed with metastatic spinal cancer who have undergone spinal decompression surgery will receive Stereotactic Body Radiation Therapy (SBRT) after their operation. The radiation dose, ranging from 16 to 40 Gy, will be determined by the radiation oncologist in accordance with expert guidelines. Precise targeting of the treatment area and identification of nearby organs will be achieved using CT and MRI imaging. SBRT will be administered in one to five sessions (1-5 fractions) in either an inpatient setting or a combination of inpatient and outpatient settings. Participants are followed for 1 year after their last treatment. Participants removed from the study for unacceptable treatment or study-related adverse event(s) are followed until resolution or stabilization of all treatment-related adverse events to grade 2 or lower.
Receives: Radiation: Stereotactic Body Radiation Therapy (SBRT); Procedure: Computed Tomography (CT) Simulation; Procedure: Magnetic Resonance Imaging (MRI); Behavioral: Questionnaires
Treatment - Debulking SurgeryExperimentalParticipants diagnosed with metastatic spinal cancer who have undergone spinal debulking surgery will receive SBRT after their operation. The radiation dose, ranging from 16 to 40 Gy, will be determined by the radiation oncologist in accordance with expert guidelines. Precise targeting of the treatment area and identification of nearby organs will be achieved using CT and MRI imaging. SBRT will be administered in one to five sessions (1-5 fractions) in either an inpatient setting or a combination of inpatient and outpatient settings. Participants are followed for 1 year after their last treatment. Participants removed from the study for unacceptable treatment or study-related adverse event(s) are followed until resolution or stabilization of all treatment-related adverse events to grade 2 or lower.
Receives: Radiation: Stereotactic Body Radiation Therapy (SBRT); Procedure: Computed Tomography (CT) Simulation; Procedure: Magnetic Resonance Imaging (MRI); Behavioral: Questionnaires

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Local Control (LC) Rate

    Local control (LC) is defined as the time from SBRT radiotherapy to metastatic lesions (event) within the SBRT treatment field with stable or decreased size as measured by a board-certified radiologist on follow-up imaging. Participants without any documented events or death will be censored. Estimates and confidence interval will be reported using the Kaplan Meier method.

    Measured: 6 months after SBRT

Secondary outcomes (9)
  1. Median Wound Complication Rate

    Wound complication rate is defined as the rate of participants with wound complications by Centers for Disease Control and Prevention (CDC) criteria. Estimates and the 95% confidence interval will be reported using exact binomial confidence interval (CIs).

    Measured: 1 month after surgery

  2. Proportion of Participants with Treatment-emergent Adverse Events (TrAE)

    Proportion of participants with treatment-emergent adverse events as graded by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE version 5.0) will be reported.

    Measured: 1 month after SBRT

  3. Median Progression-Free Survival (PFS)

    PFS is defined as the time after enrollment to radiographic progression by RECIST 1.1 criteria on MRI, CT, or Positron Emission Tomography/Computed Tomography (PETCT) at any site of disease, primary or metastatic, or any clinical evidence of progression. Tumor progression is defined as any increase in size within the radiation treatment field (determined by a radiologist), not consistent with or attributable to radiation treatment effect. Hazard ratio and 95% confidence interval will be reported using Kaplan Meier method.

    Measured: Up to 6 months after SBRT

  4. Median Progression-Free Survival (PFS)

    PFS is defined as the time after enrollment to radiographic progression by RECIST 1.1 criteria on MRI, CT, or PETCT at any site of disease, primary or metastatic, or any clinical evidence of progression. Tumor progression is defined as any increase in size within the radiation treatment field (determined by a radiologist), not consistent with or attributable to radiation treatment effect. Hazard ratio and 95% confidence interval will be reported using Kaplan Meier method.

    Measured: Up to 12 months after SBRT

  5. Median Overall Survival (OS)

    Overall survival is defined as the time after enrollment to death by any cause. Hazard ratio and 95% confidence interval will be reported using Kaplan Meier method.

    Measured: Up to 6 months after SBRT

  6. Median Overall Survival (OS)

    Overall survival is defined as the time after enrollment to death by any cause. Hazard ratio and 95% confidence interval will be reported using Kaplan Meier method.

    Measured: Up to 12 months after SBRT

  7. Median Score on the Functional Assessment of Cancer therapy, General- 7 (FACT-G7) at 1 month

    The FACT-G7 is a 7-item questionnaire designed to measure general health related quality of life (HRQOL) in cancer patients. Each item response score ranges from 0 (not at all) to 5 (very much). The total score is calculated by taking the sum of the scores x 7 divided by the number of items answered, with a total score range from 0 - 28. The higher the score, the better the HRQOL.

    Measured: 1 month

  8. Median score on the FACT-G7 at 6 months

    The FACT-G7 is a 7-item questionnaire designed to measure general health related quality of life (HRQOL) in cancer patients. Each item response score ranges from 0 (not at all) to 5 (very much). The total score is calculated by taking the sum of the scores x 7 divided by the number of items answered, with a total score range from 0 - 28. The higher the score, the better the HRQOL.

    Measured: 6 months

  9. Median score on the FACT-G7 at 12 months

    The FACT-G7 is a 7-item questionnaire designed to measure general health related quality of life (HRQOL) in cancer patients. Each item response score ranges from 0 (not at all) to 5 (very much). The total score is calculated by taking the sum of the scores x 7 divided by the number of items answered, with a total score range from 0 - 28. The higher the score, the better the HRQOL.

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Jan 2026
  2. Study start1 Nov 2026 (estimated)
  3. Primary completion31 May 2029 (estimated)
  4. Study completion30 Nov 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07346170
Sponsor's protocol ID
25721
Other IDs
NCI-2026-00112
Status last verified
Sep 2026
First submitted
14 Jan 2026
Last updated
15 Sep 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Stereotactic Body Radiation Therapy (SBRT), Computed Tomography (CT) Simulation and Magnetic Resonance Imaging (MRI) in people with Spine Metastasis and Stereotactic Body Radiation Therapy (SBRT), run by University of California, San Francisco at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 15 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 15 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Imani Dunn (877-827-3222, Imani.Dunn@ucsf.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Local Control (LC) Rate (time frame: 6 months after SBRT). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Sep 2026.

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