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This trial compares cryoablation combined with stereotactic body radiation therapy to stereotactic body radiation therapy alone to see how well they work in treating patients with pain from cancer that has spread to the bones (bone metastases). Bone is a common site of metastasis in advanced cancer, and bone metastases often result in debilitating cancer-related pain. The current standard of care to treat painful bone metastases is radiation therapy alone. However, many patients do not get adequate pain relief from radiation therapy alone. Another type of therapy that may be used to provide pain relief from bone metastases is cryoablation. Cryoablation is a procedure in which special needles are inserted into the tumor site. These needles grow ice balls at their tips to freeze and kill cancer cells. The goal of this trial is to compare how well cryoablation in combination with radiation therapy works to radiation therapy alone when given to cancer patients to provide pain relief from bone metastases.
Full description
PRIMARY OBJECTIVE:
I. To determine the efficacy of cryoablation in combination with stereotactic body radiation therapy (SBRT) or SBRT only for the treatment of painful bone metastases.
SECONDARY OBJECTIVES:
I. To assess for narcotics utilization by daily morphine equivalent dose. II. To assess duration of pain response reported by International Pain Response Criteria.
III. To assess for local tumor control. IV. To assess for changes in patient quality of life with Brief Pain Inventory (BPI) score.
V. To assess for adverse event rates. VI. To assess incidence and severity of adverse events/toxicity. VII. To assess technical success for cryoablation.
EXPLORATORY OBJECTIVE:
I. To investigate the local microenvironmental changes following SBRT and cryoablation combined with SBRT to bone metastases.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM A: Patients undergo stereotactic body radiation therapy for 1 fraction.
ARM B: Patients undergo cryoablation. Within 10 days after cryoablation, patients undergo stereotactic body radiation therapy for 1 fraction.
After completion of study treatment, patients are followed up at 1, 2, 3, 4, 8, 12, 16, 20, and 24 weeks.
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Inclusion criteria
Patient must have a primary diagnosis of malignancy and radiographic evidence of bone metastases. Eligible tumor histologies include the following malignancies with low alpha/beta ratios: renal cell carcinoma, urothelial carcinomas, castration-resistant prostate cancer, sarcoma, thyroid carcinoma, colorectal carcinoma, and melanoma
A target lesion the meets the following criteria:
Life expectancy >= 3 months
Platelet count > 50,000/mm^3 within 6 weeks of screening
International normalized ratio (INR) < 1.5 within 6 weeks of screening
If taking antiplatelet or anticoagulation medication, it must be able to be discontinued 48 hours prior to the procedure or at the discretion of the PI (e.g., aspirin, ibuprofen, low molecular weight heparin [LMWH] preparations)
Eastern Cooperative Oncology Group (ECOG) performance status =< 1 (Karnofsky >= 70%) within 6 weeks of screening
Evidence of post-menopausal status or negative urinary or serum pregnancy test for female pre-menopausal patients. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply: Women < 50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization. Women >= 50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses > 1 year ago, had chemotherapy-induced menopause with last menses > 1 year ago, or underwent surgical sterilization
All lines of prior systemic therapy are permissible. Standard concurrent chemotherapy, immunotherapy, or targeted therapy are permissible
Ability to understand and the willingness to sign a written informed consent document
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40 participants in 2 patient groups
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Central trial contact
Rahul A. Sheth, MD
Data sourced from clinicaltrials.gov
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