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Stereotactic Body Radiation Therapy (SBRT) for Tumors Near the Spinal Cord

Stereotactic Body Radiation Therapy for Tumors Near the Spinal Cord

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00631670
Enrollment
21
Registered
2008-03-10
Start date
2005-10-31
Completion date
2008-11-30
Last updated
2012-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Spinal Tumors

Brief summary

The purpose of this research study is to determine if Stereotactic Body Radiation Therapy (SBRT) is a good way to treat tumors near the spinal cord. Patients will either receive a single treatment or 25 days of treatment given once-a-day, Monday through Friday for about 5 continuous weeks. Our protocol uses life expectancy, patient preference, and tumor size to determine whether SBRT is delivered with 1 or 25 treatments. The single treatment dose is 15 Gy. The 25 treatment group is 70 Gy at 2.8 Gy/treatment.

Detailed description

This protocol is a study of the use of Stereotactic Body Radiation Therapy (SBRT) for all types of primary or metastatic tumors near the spinal cord. The major goal of this study is to evaluate the efficacy and toxicity of a specific SBRT program in a prospective manner. The main outcome variables in this study are pain and neurologic function. A major issue in delivering SBRT is the number of treatment sessions. There are advantages and disadvantages to both single and multi treatment programs. In this protocol, patients are offered SBRT with either a single treatment or 25 treatment days. This study is not designed to compare different SBRT schedules. A single treatment program is more convenient and likely to relieve symptoms sooner than a multi-session program. A program with 25 treatments may produce better long-term results. Our protocol uses life expectancy, patient preference, and tumor size to determine whether SBRT is delivered with 1 or 25 treatments.

Interventions

RADIATIONStereotactic Body Radiation Therapy

15 Gy in one treatment

Sponsors

University of Florida
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Informed consent to participate in this protocol * Patient of all ages are eligible * All tumor types are eligible * Patients with prior spine radiotherapy and/or surgery to the involved area are eligible * The tumor target must be visible on MRI or CT scan * Stereotactic Body Radiation Therapy (SBRT) on this protocol may produce a better outcome than conventional radiotherapy

Exclusion criteria

* Patients who are likely to have a satisfactory outcome with surgical resection, embolization, or radiofrequency ablation without the addition of radiotherapy * Tumor size, shape, or location is such that it is not reasonable to think the patient may benefit from SBRT as given in this protocol * The full extent of the tumor cannot be visualized on MRI or CT scan * Delaying radiotherapy for the time that it takes to start SBRT may compromise outcome compared to starting conventional radiotherapy immediately * The patient cannot be positioned reproducibly due to pain or other factors

Design outcomes

Primary

MeasureTime frameDescription
Toxicity2 yrsToxicities were graded using the RTOG-EORTC (Radiation Therapy Oncology Group-European Organization for Research and Treatment of Cancer) system and a descriptive system with which we coded any complication as mild, moderate, or severe based on our informal assessment of the complication's effect on overall quality of life. We assessed toxicity as acute meaning during treatment and late meaning several months after treatment ended.

Secondary

MeasureTime frameDescription
Local Control1 yearNumber of tumor sites with no evidence of progression of tumor at the site of radiosurgery
Neurologic Function2 yearsNumber of patients with a change in neurological function of those who presented with a neurologic deficit from tumor compression. The McCormack score was noted for each patient and the interval change was determined informally as no neurological deficit, better, worse, or unchanged as noted below.
Pain Relief12 weeksNumber of patients who reported pain at baseline and reported experienced relief after treatment. Pain was defined on a 10 point scale with 0 being no pain and 10 being worst pain imaginable. Pain relief is defined as reporting a lower level of pain than that reported at baseline.
Overall One Year SurvivalOne yearNumber of patients alive at one year after treatment

Countries

United States

Participant flow

Participants by arm

ArmCount
Single Treatment Group
15 Gy dose of radiation in one treatment. Patients were offered the option of which arm they wished to participate in.
21
25 Treatments Group
25 treatments, given once a day, Monday through Friday for about five weeks; Dose: 70 Gy at 2.8 Gy/treatment. Patients were offered the option to participate in which arm they preferred.
0
Total21

Baseline characteristics

CharacteristicTotalSingle Treatment Group
Age Categorical
<=18 years
0 participants0 participants
Age Categorical
>=65 years
8 participants8 participants
Age Categorical
Between 18 and 65 years
13 participants13 participants
Age Continuous58.5 years
STANDARD_DEVIATION 15.9
58.5 years
STANDARD_DEVIATION 15.9
Gender
Female
9 participants9 participants
Gender
Male
12 participants12 participants
Region of Enrollment
United States
21 participants21 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
14 / 210 / 0
serious
Total, serious adverse events
0 / 210 / 0

Outcome results

Primary

Toxicity

Toxicities were graded using the RTOG-EORTC (Radiation Therapy Oncology Group-European Organization for Research and Treatment of Cancer) system and a descriptive system with which we coded any complication as mild, moderate, or severe based on our informal assessment of the complication's effect on overall quality of life. We assessed toxicity as acute meaning during treatment and late meaning several months after treatment ended.

Time frame: 2 yrs

ArmMeasureGroupValue (NUMBER)
Single Treatment GroupToxicitymild acute toxicity14 participants
Single Treatment GroupToxicitymoderate acute toxicity0 participants
Single Treatment GroupToxicitysevere acute toxicity0 participants
Single Treatment GroupToxicityLate toxicity0 participants
Secondary

Local Control

Number of tumor sites with no evidence of progression of tumor at the site of radiosurgery

Time frame: 1 year

ArmMeasureValue (NUMBER)
Single Treatment GroupLocal Control24 tumors
Secondary

Neurologic Function

Number of patients with a change in neurological function of those who presented with a neurologic deficit from tumor compression. The McCormack score was noted for each patient and the interval change was determined informally as no neurological deficit, better, worse, or unchanged as noted below.

Time frame: 2 years

Population: 6 patients presented with tumor-related deficits before treatment.

ArmMeasureGroupValue (NUMBER)
Single Treatment GroupNeurologic Functionimproved neurologic function0 participants
Single Treatment GroupNeurologic Functionunchanged neurologic function6 participants
Single Treatment GroupNeurologic Functionworse neurologic function0 participants
Secondary

Overall One Year Survival

Number of patients alive at one year after treatment

Time frame: One year

ArmMeasureValue (NUMBER)
Single Treatment GroupOverall One Year Survival5 participants
Secondary

Pain Relief

Number of patients who reported pain at baseline and reported experienced relief after treatment. Pain was defined on a 10 point scale with 0 being no pain and 10 being worst pain imaginable. Pain relief is defined as reporting a lower level of pain than that reported at baseline.

Time frame: 12 weeks

Population: Patients who reported pain at baseline

ArmMeasureValue (NUMBER)
Single Treatment GroupPain Relief6 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026