The usual standard of care for patients over 65 diagnosed with glioblastoma ("GBM") or Grade 4 astrocytoma, IDH-mutant is a 3-week course of radiotherapy, with concurrent and adjuvant temozolomide (TMZ). This radiation dose and length of treatment are less than what would be given for younger patients, primarily due to unclear survival benefits from randomized trials. However, survival remains dismal, and may be partially due to the reduced radiation dose. Recent studies investigating this have found that increased radiation dose (to the equivalent of what is normally given over 6 weeks in younger patients) over 3 weeks is well-tolerated and has improved survival...
The goal of this study is to test whether an adaptive radiation therapy (RT), two-phase approach in participants with glioblastoma impacts local control compared to standard non-adaptive RT approach. The main questions of the study are to see how this adaptive, two-phase RT approach compares to standard RT in terms of: - Local control - Overall and progression-free survival - Patterns of failure - Toxicity, Neurological Function, and Quality of Life
The purpose of the study is to understand the extent and degree of somatostatin receptor expression in poorly differentiated neuroendocrine carcinomas . This may help to make a determination if a radiolabeled somatostatin analog therapy, also referred to as peptide receptor radiotherapy (PRRT), can be a potential alternative in the future. At this time, radiolabeled somatostatin analogs have not been tested in patients with poorly differentiated neuroendocrine carcinomas, and their efficacy in this disease is not well known Understanding the extent and degree of somatostatin receptor expression is important in order to evaluate the potential of radiolabeled somatostatin analog...
Standard Magnetic Resonance Imaging (MRI) is based on the excitation of hydrogen nuclei that are presents in water molecules, which abundance in human body allows for obtention of superior contrast. However, assessing the presence of other molecules than water in tissues is also of great clinical interest to probe metabolites related to physiological body function and pathological conditions. Chemical exchange saturation transfer (CEST) allow to overcome some limitations of proton magnetic resonance spectroscopy (1H-MRS) by exploiting chemical properties of the targeted molecule through a continuous process of re-saturation and exchange, and thus detecting it with increased...
Re-irradiation in gliomas is a therapeutic option at recurrence before of 2nd-line chemotherapy. The dose of re-irradiation with conventional fractionation is unfortunately limited by the risk of symptomatic radionecrosis that is significant for cumulative doses above 100 Gy. The use of unconventional low dose rate pulsed radiotherapy (pLDRT) can reduce the risk of radiotoxicity while taking advantage of the cellular hyper-radiosensitivity that occurs at low dose-rates. The present study therefore aims at evaluating whether the use of pLDRT in the re-irradiation of recurrences of gliomas allows maintaining a low risk of symptomatic radionecrosis even for cumulative doses greater...
The goal of this prospective study to investigate the use of circulating tumor DNA (ctDNA) to guide end of therapy decisions in patients with melanoma or non-small-cell lung cancer. The main question it aims to answer is: • Do patients with metastatic melanoma or non-small-cell lung cancer, who have received at least 12 months of immune checkpoint inhibition (monotherapy or in combination) with evidence of disease response/control on imaging and have no evidence of circulating tumor DNA, have an increased 12-month disease free survival in comparison to historical controls?
The aim of the study is to test the effect of tDCS stimulation on upper and lower limb function in neurological patients and to reduce pain in gynaecological patients. And the impact of tDCS stimulation on patients' quality of life. Standardised questionnaires will be used for pre- and post-stimulation evaluation.
Neuroblastoma is one of the most common extracranial solid tumors in children. It originates from cells of the neural crest, and can be located at the adrenal level, or in the sympathetic chains from the neck to the pelvis. Surgery still remains a mainstay part of the treatment and this is particularly challenging when IDRF are present. Adequate surgical planning, based on images such as CT Scans, MRI and/or nuclear medicine is crucial. This project seeks to compare; surgical time, GTR percentage and complications between standard surgical planning with biplanar 2D images vs the use of virtual reality as a planning tool, through the segmentation and post-processing of medical...
Children with cerebral palsy (CP), Gross Motor Functional Classification Scale (GMFCS) I-II will be recruited to participate in a home based physical activity intervention for 4 weeks. Demographic data will be collected, and validated surveys assessing baseline physical activity level and mobility will be completed. Participants will have an exercise program assigned and will be given a logbook to record their exercise adherence. They will be assigned to the Augment Reality (AR) app group. The AR app group will have exercises administered through the AR app. At the end of the program, participants will complete final surveys and an exit interview.
The goal of this research is to determine if DetectnetTM PET/CT can be used to make Lutathera therapy safer for patients with neuroendocrine cancer. Participants will: - Complete two phases involving 6 visits - Undergo additional research PET/CT, and possibly SPECT/CT scans