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Image-Guided Navigation for High Dose Rate Temporary Interstitial Brachytherapy in the Palliative Management of Previously Treated Tumors of the Spine and Pelvis

A Pilot Study of Image-Guided Navigation for High Dose Rate Temporary Interstitial Brachytherapy in the Palliative Management of Previously Treated Tumors of the Spine and Pelvis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01757717
Enrollment
3
Registered
2012-12-31
Start date
2013-01-31
Completion date
2017-07-31
Last updated
2018-03-20

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

Conditions

Metastatic or Recurrent Lesions in the Pelvis, Metastatic or Recurrent Lesions in the Spine

Keywords

radiation therapy, HDR brachytherapy, Ir-192 high dose rate, 12-260

Brief summary

The purpose of this study is to see if using a form of imaging during surgery helps the doctors to guide the placement of radiation catheters more accurately. This method, called image-guided surgical navigation may allow the doctors to deliver radiation to the tumor that the patient needs and decrease the amount of radiation delivered to the nearby areas.

Interventions

RADIATIONIr-192 high dose rate (HDR)

Patients will be followed at 2 months (+/- 2 weeks) post-treatment and then approximately every 3 months (+/- 2 weeks) until approximately 11 months of follow up. They will be evaluated for pain referable to the treated site, clinical and radiographic evidence of local progression, and treatment related toxicity. Thereafter, patients will be followed as clinically indicated.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have histologic proof of a malignancy suitable for radiation therapy. * Patients must have received prior external beam radiation therapy to the region proposed for HDR brachytherapy treatment; evaluation of doses previously delivered to spinal cord/cauda equine, pelvis, and other critical structures (bowel, kidneys, rectum) will be taken into consideration. * If repeat irradiation would exceed any normal tissue constraint set by MSKCC Radiation Oncology Department dose constraint criteria, the patient will potentially be eligible. * If the total prior radiation dose to the cord or pelvis exceeds 100 Gy BED equivalent, the patient will be potentially eligible, where a total of 100 BED Gy equivalent is determined by the biological equivalent dose (BED) calculation; BED = nd(1 + d/α/β), where n = number of fractions and d = dose per fraction; α/β is the constant for spinal cord late effect and equals 2. \[Rades 2005, Nieder 2005, Sahgal 2012\] * KPS ≥ 60 * Age ≥ 18 years old

Exclusion criteria

* Patients who may receive therapeutically effective doses via an external beam approach to the lesion of interest as specified by MSKCC Radiation Oncology Department dose constraint criteria. * Patients with kyphoplasty cement or hardware that would preclude effective catheter placement. * Patients with paraspinal extension of disease with visceral involvement. * Abnormal complete blood count. Any of the following: * Platelet count \< 75,000/ml * Hb level \< 9gm/dl * WBC \< 3.5/ml * Abnormal coagulation profile: INR \> 2.5 and/or PTT \> 80 * Patients who are on anticoagulation medication that may not be safely held for the procedure (≥ 5 days for antiplatelet agents and warfarin; ≥ 24 hours for low-molecular weight heparin formulations) will be excluded. * Contraindications to general anesthesia

Design outcomes

Primary

MeasureTime frameDescription
Maximum Radiation Dose1 yearVerify feasibility of HDF treatment of spinal and/or pelvic lesions using catheters placed under image-guided navigational techniques, to provide improved dosimetric coverage of lesions such that Cord/Cauda Dmax of \<8 Gy

Secondary

MeasureTime frameDescription
Number of Grade 3 of Higher Toxicities1 yearFor previously irradiated lesions of the spine and/or pelvis, defined as an acceptable level of severe toxicity (both acute and late effects) in the setting of HDR brachytherapy treatment. Severe toxicity will be defined as ≥ grade 3 NCI CTCAE v 4.0 toxicity that is at least possibly related to treatment

Countries

United States

Participant flow

Participants by arm

ArmCount
Ir-192 High Dose Rate (HDR)
This pilot study is an investigation into the use of Ir-192 high dose rate (HDR) afterloader-based brachytherapy with catheter placement using image-guided surgical navigation techniques for patients with painful/symptomatic metastatic or recurrent lesions in the spine and/or pelvis that have been maximally treated with external beam radiation therapy. Ir-192 high dose rate (HDR): Patients will be followed at 2 months (+/- 2 weeks) post-treatment and then approximately every 3 months (+/- 2 weeks) until approximately 11 months of follow up. They will be evaluated for pain referable to the treated site, clinical and radiographic evidence of local progression, and treatment related toxicity. Thereafter, patients will be followed as clinically indicated.
3
Total3

Baseline characteristics

CharacteristicIr-192 High Dose Rate (HDR)
Age, Continuous64 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
1 Participants
Region of Enrollment
United States
3 Participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 3
other
Total, other adverse events
3 / 3
serious
Total, serious adverse events
0 / 3

Outcome results

Primary

Maximum Radiation Dose

Verify feasibility of HDF treatment of spinal and/or pelvic lesions using catheters placed under image-guided navigational techniques, to provide improved dosimetric coverage of lesions such that Cord/Cauda Dmax of \<8 Gy

Time frame: 1 year

ArmMeasureValue (MEDIAN)
Ir-192 High Dose Rate (HDR)Maximum Radiation Dose7 cord/cauda max dose in Gy
Secondary

Number of Grade 3 of Higher Toxicities

For previously irradiated lesions of the spine and/or pelvis, defined as an acceptable level of severe toxicity (both acute and late effects) in the setting of HDR brachytherapy treatment. Severe toxicity will be defined as ≥ grade 3 NCI CTCAE v 4.0 toxicity that is at least possibly related to treatment

Time frame: 1 year

ArmMeasureValue (NUMBER)
Ir-192 High Dose Rate (HDR)Number of Grade 3 of Higher Toxicities0 brachytherapy related complications

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