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The purpose of this study is to assess whether postoperative adjuvant therapy with mRNA-4157 and pembrolizumab improves recurrence free survival (RFS) compared to pembrolizumab alone in participants with complete resection of cutaneous melanoma and a high risk of recurrence.
Cancer is a leading cause of death worldwide. It is estimated that approximately 55,000 Canadians are surviving with brain tumors. It is projected that around 3000 persons will be diagnosed with brain and spinal cord tumors, and approximately 75 percent patients will not survive. Out of all brain cancers, high-grade gliomas [Glioblastoma Multiforme (GBM)] impose highest morbidity and mortality. Therefore, it is important to explore ways in which Investigators can improve and prolong the lives of patients suffering from brain cancers, particularly high-grade glioma, which is the most common and aggressive primary brain tumor. So far the Investigators know that the surgery,...
Background: For newly-diagnosed patients with brain metastasis, conventional whole-brain radiation therapy (WBRT) might still remain a common palliative management even for those with brain oligometastases. However, WBRT-related late consequences, particularly a decline in neurocognitive functions (NCFs), are a major concern. Actually, WBRT-related neurocognitive dysfunction is usually characterized as deterioration involving learning and memory, in which the extremely radiosensitive hippocampus indeed plays a critical role. In order to postpone or mitigate the effect of conventional WBRT-induced neurocognitive impairments, there have been some strategies and options in...
The most aggressive primary brain tumors in adults, glioblastomas, are characterized by a profound local and systemic immune suppression. During tumor progression, the infiltration of inflammatory leukocytes, especially of myeloid origin, endowed with immunosuppressive function is observed. Aim of this study is to evaluate myeloid cell infiltrate and iron metabolism in tumor-associated macrophages by combining a multimodal MRI imaging technique with immunophenotyping of the tumor microenvironment.
This clinical trial tests the effectiveness of an interactive time-restricted diet intervention (txt4fasting) in reducing neurocognitive decline and improving survival outcomes after stereotactic radiosurgery in patients with breast or lung cancer that has spread to the brain (brain metastases). Lung cancer and breast cancer are the two most frequent causes of brain metastases. The diagnosis of brain metastases is associated with poorer survival and tumor-induced and treatment-related side effects. Stereotactic radiosurgery is a type of external radiation therapy that uses special equipment to position the patient and precisely give a single large dose of radiation to a...
The overall aim of this project is to improve the outcome of patients diagnosed with ependymoma by improving and harmonising the staging and the standard of care of this patient population and to improve the investigators understanding of the underlying biology thereby informing future treatment. The program will evaluate new strategies for diagnosis (centralized reviews of pathology and imaging) and new therapeutic strategies in order to develop treatment recommendations. Patients will be stratified into different treatment subgroups according to their age, the tumour location and the outcome of the initial surgery. Each subgroup will be studied in a specific randomised...
The PARTNER study is an international, prospective, observational study of paediatric patients with very rare tumours.
This clinical trial examines an investigational scan (64Cu-DOTA-trastuzumab positron emission tomography [PET]/magnetic resonance imaging [MRI]) in imaging patients with HER2+ breast cancer that has spread to the brain (brain metastasis). Diagnostic procedures, such as 64Cu-DOTA-trastuzumab PET/MRI, may help find HER2+ breast cancer that has spread to the brain and determine whether cancer in the brain takes up trastuzumab, which may predict for response to trastuzumab deruxtecan (the standard of care chemotherapy).
This early phase I trial determines where and to what degree the tracer [68Ga] Ga-FAPI-04 accumulates in normal and cancer tissues in patients with high grade neuroendocrine cancer. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, in the case of this research [68Ga] Ga-FAPI-04. Because some cancers take up [68Ga] Ga-FAPI-04, it can be seen with PET. CT utilizes x-rays that traverse body from the outside. CT images provide an exact outline of organs and potential inflammatory tissue where it occurs in patient's body.
The study is designed to use infusion of a non-radioactive, naturally occurring isotope of glucose (13C) in patients undergoing surgical resection for a newly identified brain mass to obtain the metabolic phenotype of the tumor, and correlate it with the histopathological diagnosis. In each patient, 13C NMR spectral analysis of tumor extracts will be obtained after intraoperative infusion of [U-13C]glucose or [1,2-13C]glucose. Whenever feasible, patients will undergo 3 preoperative imaging studies - 18FDG-PET, diffusion tensor imaging with 1H-spectroscopy on 3T MR scanner, and ultra high resolution MR imaging on the 7T MR scanner. The results of these imaging studies will be...
