This is the first study to be done in a newly described class of neuroendocrine tumors known as well-differentiated grade 3 neuroendocrine tumors (WD G3 NET). First described in the pancreas in 2017, the classification was broadened to include gastrointestinal tract tumors in 2019. Recent data suggest an equivalent subtype exists in the lungs (NEC with carcinoid morphology). WD G3 NETs can occur de novo as well as the result of grade progression over time. This is a single arm, multi-site, Phase II study in biomarker "unselected" participants. This study will also incorporate serial blood samples, tumor biopsies, and special imaging to better understand the impact of therapy on the...
The purpose of this research study is to determine the safety and efficacy of administering two doses of lerapolturev in residual disease (within tumor margins) after surgery, followed later by repeated injections of lerapolturev in the subcutaneous area (under the skin) around the lymph nodes of the head and neck for adult patients diagnosed with recurrent glioblastoma at the Preston Robert Tisch Brain Tumor Center (PRTBTC) at Duke.
This study is a single centre non-randomized non-blinded phase II prospective cohort study including 50 participants. The objective of this study is to directly compare 68Ga-HA-DOTATATE, 18F-DOPA, and 18F-FDG activity in patients with metastatic neuroendocrine tumors (NETs) on a lesion-by-lesion basis. The investigators will determine the prevalence of concordant versus discordant disease. Secondary objectives include assessing the standardized uptake value (SUV) and determining if there is any correlation between discordance and disease progression.
This phase I trial studies the side effects of linear energy transfer (LET) optimized image modulated proton therapy (IMPT) in treating pediatric patients with ependymoma. Radiation therapy such as LET optimized IMPT, uses proton beams to kill tumor cells and shrink tumors without damaging surrounding normal tissues.
Prevention and treatment of CNS relapse remains a great unmet clinical need in the management of aggressive B-NHL. Hence, investigating novel diagnostic tests is of paramount importance to improve risk-stratification of lymphoma patients at diagnosis, as is the evaluation of novel therapeutic approaches that may prevent and / or treat CNS recurrence. Based on the highlighted evidence, the investigators hypothesize that ctDNA detected within the CSF could potentially improve the detection rate of CNS involvement and consequently improve patients' stratification and better discriminate those in need of consolidative CNS prophylaxis on a molecular basis. Similarly, the...
Neuroendocrine tumors (NETs), often seen as "chronic cancer" present a survival paradox with relatively prolonged patient survival despite active disease. Treatment strategies emphasize management over cure, integrating tumor control with quality of life (QOL) considerations. Surgery is a cornerstone of NET management but demands a careful balance between its potential benefits and the morbidity risks. Current literature on post-surgical QOL is limited and non-generalizable, underscoring the need for comprehensive, multi-institutional data to inform surgical decisions. We will study QOL after surgery for NETs in a prospective multi-institutional international cohort study....
This phase II trial tests how well lifileucel, with reduce dose fludarabine and cyclophosphamide for lymphodepletion and interleukin-2, work for treating patients with melanoma that cannot be removed by surgery (unresectable) or that has spread from where it first started (primary site) to other places in the body (metastatic).Lifileucel is made up of specialized immune cells called lymphocytes or T cells that are taken from a patient's tumor, grown in a manufacturing facility and infused back into the preconditioned patient to attack the tumor. Giving Lifileucel with a reduced dose of fludarabine and cyclophosphamide for lymphodepletion and interleukin -2 is being studied in...
The goal of this observational study is to study blood samples and compare them to other biospecimens and clinical outcomes in participants who have melanoma or non-melanoma skin cancers. The main question it aims to answer is: - Are blood based signatures able to predict progression-free survival (PFS)? Participants undergoing regular treatment for their skin cancer will provide blood samples.
The objective of this protocol is to develop an institution-wide liquid biopsy protocol that will establish a common process for collecting blood and corresponding archived tumor specimens for future research studies at the University Health Network's Princess Margaret Cancer Centre. Circulating cell-free nucleic acids (cfNA), including cell-free DNA (cfDNA) and cell-free RNA (cfRNA), are non-invasive, real-time biomarkers that can provide diagnostic and prognostic information before cancer diagnosis, during cancer treatment, and at disease progression. Cancer research scientists and clinicians at the Princess Margaret are interested in incorporating the collection of peripheral...
This is a prospective multicenter biomarker study evaluating the prognostic impact of ctDNA detection at diagnosis in patients with Ewing sarcoma or osteosarcoma.