Active clinical trials for "Brain Neoplasms"

This trial studies how an imaging agent, hyperpolarized carbon C 13 pyruvate, works in diagnosing glioma in patients with brain tumors. Giving hyperpolarized carbon C 13 pyruvate before an advanced imaging technique called a magnetic resonance spectroscopic imaging (MRSI) scan may help researchers better diagnose glioma in patients with brain tumors.

Arterial spin labeling (ASL) is a non-invasive MRI technique that could help the radiologists to distinguish brain metastasis progression versus radionecrosis following gamma-knife treatment. The primary target of the study is to establish the diagnostic performances (specificity, sensitivity) of quantitative measures of ASL in brain metastases suspected of progression/radionecrosis after GK treatment

Contrast-enhanced magnetic resonance imaging is the most widely used examination for detecting the presence of brain metastasis. Functional sequences such as perfusion weighted imaging makes it possible to differentiate tumor recurrence from cerebral radionecrosis. However, this imaging technique may exhibit limitations, especially for brain lesions consisting of a mixture of necrotic tissue and tumor progression or depending on the location of the lesion in the brain. The use of 18F-DOPA PET is another option available to oncologists. Many studies on gliomas showed the superiority of this imaging technique over contrast-enhanced MRI. However, this imaging solution has been very poorly studied for brain metastases. The new PET technology equiped with silicon detectors makes it possible to obtain greater sensitivities than those of previous generations. It also make possible to obtain images in very short acquisition times. After injection, the hardware allows to obtain the perfusion kinetics of the lesion thanks to a very short temporal sampling (i.e. three seconds). The main objective of this pilot study is to evaluate the association between early activity measurements (< 4 minutes post-injection) of 18F-FDOPA in PET and the differential diagnosis between radionecrosis and recurrence of cerebral metastases treated by radiotherapy.

This phase II trial studies how well F-18 fluoroethyltyrosine (fluoroethyltyrosine) works in detecting tumors in participants with intracranial tumors that have come back. Imaging agents, such as fluoroethyltyrosine, may help doctors see the tumor better during a positron emission tomography (PET) scan.

This phase IV trial studies how well delaying positron emission tomography (PET)/magnetic resonance imaging (MRI) scan after injection of fluorodeoxyglucose (FDG) can improve the imaging of patients with cancer that has spread to brain (brain metastases). FDG is a type of imaging agent that doctors use to help "see" the images on a scan more clearly. Delaying PET/MRI scan after injecting FDG may improve how well doctors can tell the difference between healthy and unhealthy tissue.

MRI-based sequences can provide non-invasive quantification of intratumoral 2-hydroxyglutarate (2HG) distribution and tumor cellularity in human gliomas and help guide the development of novel glioma therapies.

Dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) is a potentially powerful diagnostic tool for the management of brain cancer and other conditions in which the blood-brain barrier is compromised. This trial studies how well precise DCE MRI works in diagnosing participants with high grade glioma that has come back or melanoma that has spread to the brain. The specially-tailored acquisition and reconstruction (STAR) DCE MRI could provide improved assessment of brain tumor status and response to therapy.

This is a research trial that seeks to break up the total radiation dose into multiple smaller radiation treatments, termed fractionated stereotactic radiosurgery (FSRS) which may make the treatment feasible. Fractionated sterotatcic radiation, the risks of FSRS, and possible costs will be described later in this document. This clinical trial is for people who have had no prior whole brain radiation.

This research study is investigating the value of an imaging study of the brain called an MRI (which stands for magnetic resonance imaging), utilized in unique way, to delineate whether the tumor has recurred or whether radiation changes have occurred after a brain metastasis treated with focused radiation has enlarged.

Single center, non-randomized, Phase 0 study. Sacituzumab Govitecan given preoperatively, followed by craniotomy with surgery or biopsy of brain tumors (GBM and metastatic brain tumors from Breast) and intraoperative tissue collection will follow with contemporaneous CSF (depending on tumor location) and whole blood (serum) sampling.