Metastases, Palliative Radiotherapy
Conditions
Brief summary
The goal of this clinical trial is to evaluate the feasibility of single-blind randomization between two palliative regimens - standard 24 Gray in 3 fractions vs a high-dose (Hi-D) 27 Gray in 3 fractions with dose escalation within the tumor in participants with bulky metastatic cancer. The main question
Interventions
standard dose RT
Sponsors
Study design
Eligibility
Inclusion criteria
* Subjects must meet all the following criteria to be eligible for participation in this study: * Age 18 or older. * Able to provide informed consent * Patient has histologically confirmed solid tumour malignancy * ECOG performance status 0 - 2 * Life Expectancy \> 6 months * 1-5 target lesions larger than 5cm * A history and physical exam, including ECOG performance status, performed within 6 weeks prior to trial enrollment * Not suitable for or declined curative-intent treatment * Subject has had a CT neck, chest, abdomen and pelvis or PET-CT within 8 weeks prior to enrollment, and with 12 weeks of treatment * MRI spine for patients receiving RT to vertebral or paraspinal metastases * Patient is judged able to: * Maintain a stable position during therapy * Tolerate immobilization device(s) that may be required to deliver radiation safely
Exclusion criteria
* \- Hematologic malignancy. * Disease limited to intracranial sites * Serious medical co-morbidities precluding radiotherapy * Bone metastases with no soft tissue component * Prior radiation to target lesion that precludes delivery of repeat radiation. All such cases should be discussed with the local and study PIs. * Pregnant women
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Feasibility of accrual | From open to accrual to close to accrual (24 months) | ≥20 participants enrolled within 24 months from first patient accrued |
| Feasibility of blinding | From enrollment to RT completion. | Trial Assignment Questionnaire administered post-treatment. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Compare changes in local control | From enrollment to end of study, accessed at 6 weeks, and month 3,12,18,24 | Kaplan-Meier curves; stratified log-rank test |
| Compare changes in OS | From enrollment to end of study at 24 months or death | Time from randomization to death from any cause. Kaplan-Meier; stratified log-rank. |
Countries
Canada