View clinical trials related to Neoplasm Metastasis.
Filter by:This study will evaluate the effect of the International Dental Federation (FDI) criteria, compared to CARS (Caries Associated with Restorations or Sealants) detection criteria for evaluation of caries lesions around restorations in permanent teeth, in the outcomes related to oral health of adults, in a randomized clinical trial.
The purpose of this study is to investigate the safety and effectiveness of subjects receiving MR-guided Focused Ultrasound (MRgFUS) treatment for painful bone metastases. This study will evaluate treatment response and clinically significant adverse events. Other relevant data may be documented as well.
This study aims to provide intravenous paritcalcitol treatment for the sick and poor hemodialysis patients with severe secondary hyperparathyroidism (SHPT) resistant to existing vitamin D analogs therapy or with hypercalcemia precluding the use of existing vitamin D analogs. The study aims to evaluate the effect of paricalcitol on control of SHPT, biochemical parameters of chronic kidney disease-mineral bone disease, cardiac parameters, vascular calcification and stiffness parameters and nutrition status in patients receiving chronic hemodialysis treatment.
Although it is usually described as an immunosuppressive modality and not thought of as immunotherapy, there are new preclinical evidences suggesting that high-dose ionizing irradiation (IR) results in direct tumour cell death and augments tumour-specific immunity, which enhances tumour control both locally and distantly. Importantly, IR effects exceed the classical cytocidal properties by also causing phenotypic changes in the fraction of surviving cells, markedly enhancing their susceptibility to T cell-mediated elimination. However, not all IR-induced modifications of the tumour and its microenvironment favor immune rejection. The tumour microenvironment is populated by various types of inhibitory immune cells including Tregs, alternatively activated macrophages, and myeloid-derived suppression cells (MDSCs), which suppress T cell activation and promote tumour outgrowth. Chiang et al. showed the accumulation of pro-tumourigenic M2 macrophages in areas of hypoxia present in irradiated tumours. IR then may also induced responses that are inadequate to maintain antitumour immunity. Close interaction between IR, T cells, and the PD-L1/PD-1 axis exsit and provide a basis for the rational design of combination therapy with immune modulators and radiotherapy. Deng et al. demonstrate that PD-L1 was upregulated in the tumour microenvironment after IR. Moreover, administration of anti-PD-L1 enhanced the efficacy of IR through a cytotoxic T cell-dependent mechanism. Concomitant with IR-mediated tumour regression, IR and anti-PD-L1 synergistically reduced the local accumulation of tumour-infiltrating MDSCs, which suppress T cells and alter the tumour immune microenvironment. Finally, activation of cytotoxic T cells with combination therapy mediated the reduction of MDSCs in tumours through the cytotoxic actions of TNF. Sagiv-Barfi et al, also demonstrated in 5 patients receiving atezolizumab and radiation therapy, at least stabilization of systemic progression in all patients and a RECIST partial response at systemic sites in 1 patient. Transient, grade 1-2 inflammatory adverse events (fevers, flu-like symptoms) occurred with no serious immune-related toxicities. Abscopal out-field effects of irradiation has also been described in addition to a reduction in circulating MDSCs in a melanoma patient treated with the anti CTLA-4 ipilimumab and radiotherapy. Lastly, recent evidence demonstrates that loco-regional curative treatment with stereotactic ablative radiotherapy (SABR) is a good alternative as compared with conventional 3D RT for patients with solid tumour, with durable remissions and a low toxicity profile. Many non-randomised studies have shown that SBRT for oligometastases is safe and effective, with local control rates of about 80%. Importantly, these studies also suggest that the natural history of the disease is changing, with 2-5 year progression-free survival of about 20%. For colorectal, non-small cell, and renal cell cancers, 1-year metastasis control rates ranged from 67 to 91%. Moreover, abscopal responses in the setting of immune checkpoints inhibitors and radiotherapy combinations have been made in the setting of metastatic disease event in patients with extensive tumor burden. The goal of SABR is to deliver appropriate metastasis directed radiotherapy while minimizing exposure of surrounding normal tissues. Interestingly, the dose and fractionation employed modulate RT ability to synergize with immunotherapy. Vanpouille-Box et al, showed that immune response genes were differentially expressed in irradiated tumours by 8Gyx3 but not 20Gyx1. This highlight the interest of hypofractionated SABR acting as a "in situ tumour vaccine". As hypofractionated SABR may, in addition to its good local control, increase the effectiveness of anti PD-L1, investigators aimed to investigate the efficacy and the tolerability of the combination of anti-PD-L1 antibody with SABR.
Stereotactic radiosurgery (SRS) is increasingly administered as the sole treatment of brain metastases, in order to spare acute and long term side effects associated with whole brain radiotherapy. Local control of SRS treated lesions is good, but patients tend to develop additional brain metastases subsequently. Nivolumab is a modulator of the immune system. Treatment with Nivolumab is associated with an increase in local control and survival in patients with non-small cell lung cancer and clear cell renal cell carcinoma. In the presence of Nivolumab, treatment of brain metastases with SRS may trigger an immune reaction against cancer. Therefore, the combination of SRS with Nivolumab may reduce the development of new brain metastases and improve patient survival. The purpose of this study is to assess the effect of combining Nivolumab and SRS in controlling cancer progression. SRS will be administered to patients while they are receiving Nivolumab.
Whole Brain Radiation Therapy (WBRT) has long been the mainstay of treatment for patients with multiple brain metastases (BM). Meanwhile, Gamma Knife radiosurgery (GKRS) has been increasingly employed in the management of multiple BM to spare healthy tissue. Hence, GKRS is expected to cause fewer cognitive side effects than WBRT. Treatment of multiple BM without cognitive side effects is becoming more important, as more patients live longer due to better systemic treatment options. There are no published randomized trials yet directly comparing GKRS to WBRT in patients with multiple BM, including objective neuropsychological testing. CAR-Study B is a prospective randomized trial comparing cognitive outcome after GKRS or WBRT in eligible patients with 11-20 BM.
This is a study measuring toxicity while making observations about the survival benefits of treating participants with oligometastatic disease using stereotactic ablative radiotherapy (SABR).
This study is for patients that have nasopharyngeal carcinoma, breast cancer, gastric cancer and other solid tumors. As epithelial cell adhesion molecule (EpCAM) is a well characterized molecule that is closely with poor prognosis and tumor metastasis and invasion. Many therapies targeting EpCAM have shown benefits for cancer patients. This study is to determine the safety of the engineered T cells armed with chimeric antigen receptor (CAR-T) recognizing EpCAM. At the same time, efficacy is to be evaluated by the criteria of RECIST. The EpCAM CAR-T were produced by lentiviral transduction of the novel 2nd generation of CAR genes. Different cohorts of patients receive EpCAM CAR-T with a dose-escalating manner. This study is to find the largest dose of EpCAM CAR-T, to learn what the adverse effects are and to find out whether this experimental intervention might help patients with nasopharyngeal carcinoma, breast cancer and other EpCAM positive solid tumors.
Reports to date show limited efficacy of immunotherapy for uveal melanoma. Recent experimental and clinical evidence suggests synergy between radiation therapy and immunotherapy. The investigators will explore this synergy with a feasibility study of 26 patients with uveal melanoma and hepatic metastases who will receive SirSpheres Yttrium-90 selective internal hepatic radiation followed by immunotherapy with the combination of ipilimumab and nivolumab.
The purpose of this study is to demonstrate the feasibility of an aggressive multimodal approach among patients with stage IV pancreatic cancer (PAC) with isolated, low-volume hepatic metastasis (LVHM). We will evaluate and describe the surgical and overall outcomes of an initial cohort of subjects who undergo pancreatectomy and hepatic resection/ablation for PAC with LVHM. The end of study results will be reviewed by the Hepatiobiliary Multidisciplinary Conference (HDMC) and Surgery Audit Committee (SAC) to determine the appropriateness of adding this treatment arm for patients with oligometastatic metastatic pancreatic cancer.