About this trial
The aim of this study is to investigate the effect of MRI-guided adaptive stereotactic radiotherapy on local control, survival, and toxicity in the treatment of oligometastatic cancer to the abdomen.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Aged 18 years or older
Liver
Adrenal
Abdomino-pelvic lymph node
Disqualifiers
Contra-indication to MRI
Previous high dose radiotherapy to a site requiring stereotactic treatment (including SIRTEX). Further SABR treatment of lesions previously treated with SABR or high dose radiotherapy is not permitted in this trial.
Substantial overlap with a previously treated high dose (definitive or stereotactic dose) radiation volume.
Primary prostate cancer, carcinoid tumours, germ cell tumours, lymphoma, small cell tumours
Trial design
Parallel
Treatments tested in this trial
Intervention: MRI-Linac SABR
Procedure/SurgeryThe treatment planning protocol follows the UK SABR Consortium Guidelines. Patients will be prescribed the maximum isotoxic dose achievable while meeting normal organ tolerances (normal liver, kidney, spinal cord, stomach, duodenum, small and large bowel, heart, lungs, chest wall). The lowest acceptable SABR doses are indicated in the dose range Table within the protocol. The maximum dose/fraction also indicates the maximum the dose can be escalated to for each adaptive session on the MRI-Linac.
Treatment groups
Trial outcomes
Primary outcomes
Rate of local control (Local Response Rate).
To determine if patients treated with MRI guided stereotactic radiotherapy improves local control. Local control is defined as absence of progression in treated lesion(s) and will be measured via clinical progress imaging (and assessed using RECIST criteria).
Sponsors and contacts
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Australasian Gastro-Intestinal Trials Group
Lead sponsor
Trans Tasman Radiation Oncology Group
Collaborator