A Randomized Phase III Trial of Stereotactic Ablative Radiotherapy for Patients With Up to 10 Oligometastases and a Synchronous Primary Tumor. (SABR-SYNC)
Metastatic Tumor
About this trial
This is an interventional treatment trial for Metastatic Tumor
Eligibility Criteria
Inclusion Criteria: Age 18 years or older Willing to provide informed consent Karnofsky performance status > 60 Life expectancy > 6 months Histologically confirmed malignancy with metastatic disease detected on imaging. Biopsy of metastasis is preferred, but not required. Total number of metastases 1-10 at the time of enrollment, with a primary tumor also present Restaging completed within 12 weeks prior to randomization (see section 5.1) For patients receiving thoracic radiotherapy, the enrolling physician must confirm there are no computed tomography (CT) changes suggestive of fibrotic interstitial lung disease (ILD) (i.e. reticular changes, traction bronchiectasis, or honeycombing) reported on any prior CT scans. If any are present, the patient must be assessed by a respirologist to rule out ILD prior to enrollment. Exclusion Criteria: Serious medical comorbidities precluding radiotherapy. These include ILD in patients requiring thoracic radiation, Crohn's disease in patients where the gastrointestinal (GI) tract will receive radiotherapy, or ulcerative colitis where the bowel will receive radiotherapy and connective tissue disorders such as lupus or scleroderma. For patients with liver metastases, moderate/severe liver dysfunction (Child Pugh B or C); please see the Child-Pugh score calculator. Substantial overlap with a previously treated radiation volume. Prior radiotherapy in general is allowed, as long as the composite plan meets dose constraints herein. For patients treated with radiation previously, biological effective dose calculations should be used to equate previous doses to the tolerance doses listed in Appendix 1. All such cases must be discussed with a member of the study steering committee. Malignant pleural effusion Inability to treat all sites of disease Brain metastasis > 3 cm in size or a total volume of brain metastases greater than 30 cc. Metastasis in the brainstem Clinical or radiologic evidence of spinal cord compression Metastatic disease that invades any of the following: GI tract (including esophagus, stomach, small or large bowel), or skin Pregnant or lactating women
Sites / Locations
- BC Cancer - Centre for the North
- London Regional Cancer Program of the Lawson Health Research InstituteRecruiting
- Centre Hospitalier de l'Université de Montréal-CHUM
Arms of the Study
Arm 1
Arm 2
Active Comparator
Experimental
Standard Arm (Arm 1)
Experimental Arm (Arm 2)
Radiotherapy for patients in the standard arm should follow the principles of palliative radiotherapy as per the individual institution, with the goal of alleviating symptoms or preventing imminent complications.
Consists of treatment to the primary tumor and metastases, with SABR preferred, but other options all allowable (e.g. surgery, RFA, fractionated radiation, chemoradiation) if those are deemed to be preferable by the treating oncologists.