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NCT07079098
This study is for participants whose cancer is oligometastatic, meaning it has spread to up to five spots in their body and their doctor recommends that they have stereotactic body radiation therapy (SBRT) to treat these cancer sites. SBRT is a type of radiation therapy that may help people with oligometastatic disease live longer without cancer progression. SBRT is usually given in addition to other cancer treatments, like chemotherapy, immunotherapy, or hormone therapy. Preparing for SBRT can take up to a week or longer. This can make it harder for participants to receive SBRT and coordinate care. This can also mean a longer time until symptoms from cancer sites improve. Doctors would like to treat oligometastatic cancers more quickly by reducing the time it takes to plan for the SBRT. The typical workflow for SBRT includes doctors doing a simulation which requires a CT (Computerized Tomography) scan. The CT scan is used to create a treatment plan. It can take time to schedule this CT scan and then it normally takes another 5-10 days to create a treatment plan. A way to reduce the planning time for SBRT is to use the CT scan (or other radiology scan types, like magnetic resonance imaging \[MRI\] or positron emission tomography \[PET\]) that participants had when their cancer was diagnosed to plan their SBRT. This eliminates the scheduling of an additional CT scan and the 5-10 day planning time. This is called CTsim-free (CT simulation-free) treatment planning. CT-sim-free radiation therapy planning has been shown to be effective in treating cancers that are causing pain in people with more advanced or widespread cancers. This study is being done to find out if it is safe and effective to use CTsim-free planning for SBRT to treat oligometastases.
NCT03965468
A multicentre single arm phase II trial assessing the efficacy of immunotherapy, chemotherapy plus stereotactic radiotherapy to metastases followed by definitive surgery or radiotherapy to the locoregional primary tumour, in patients with histologically-confirmed synchronous oligo-metastatic non-small cell lung cancer (NSCLC).
NCT06550921
Ablation has been an effective approach for treating intrathoracic metastases. However, for hepatocellular carcinoma with oligometastasis, ablation of metastases remains relatively unexplored.
NCT05173610
Oligometastasis is a definition that has been described in the past in the 1990s, and in some patients, metastases are not extensive and are limited to a small number of metastases. The local ablative treatment for oligometastasis is not a new concept. In case of liver metastasis from colorectal cancer, long-term survival can be expected if the liver resection is performed. Effectiveness has been demonstrated in studies of adrenal and brain metastasis from lung cancer as well as lung metastasis from sarcoma. A recent non-randomized study reported that patients with oligometastasis improved treatment outcomes with aggressive treatment. This study demonstrated that local ablative treatment for oligometastasis showed better treatment outcomes than expected. Also, the long-term outcomes in SABR-COMET trial showed that the overall survival were increased by 22 months. So far, the standard treatment for metastatic disease is systemic chemotherapy. However, based on these results from studies, active local treatment for patients with oligometastasis is currently being performed in the clinic. In this study, we aimed to apply this concept to patients with hepatocellular carcinoma. To confirm the efficacy and safety of stereotactic radiotherapy in patients with oligometastasis hepatocellular carcinoma
NCT04677192
This study is a prospective, single center, single arm, phase II clinical study in patients with liver metastasis after radical resection of pancreatic cancer. The purpose of this study is to evaluate the clinical value of microwave ablation combined with chemotherapy for liver metastasis after radical resection of pancreatic cancer about overall survival, and to determine the feasibility and safety of the scheme.