View clinical trials related to Brain Neoplasms.
Filter by: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.
Transcranial focused ultrasound (tFUS) offers a platform for non-invasive imaging and treatment of the brain and pathology of the brain -- allowing high resolution imaging in both spatial and temporal dimensions. Compared with the gold- standard for brain imaging, magnetic resonance imaging (MRI), ultrasound offers reduced contrast while providing improved sampling in time through a significantly more cost-effective approach. In addition, while MRI is used to guide invasive treatments, only ultrasound can offer treatments through three primary mechanisms: 1) neuromodulation, 2) blood brain barrier modulation, and thermal/mechanical ablation through high intensity focused ultrasound (HIFU). All three treatment options require targeting therapy through the skull, which remains a barrier to clinical translation. This proposal is to test the feasibility of acquiring noninvasive targeting imaging intraoperatively prior to clinically indicated cranial neurosurgery. By acquiring volumetric ultrasound images while coregistered to previously obtained stereotactic magnetic resonance imaging, the study will be able to compare the ability of tFUS to identify and focus on brain pathology.
This clinical trial is aimed at the evaluation of the safety and clinical activity of tiragolumab in combination with carboplatin, pemetrexed and atezolizumab in the first line treatment of metastatic non-squamous NSCLC patients with asymptomatic untreated brain metastases.
An intracranial tumor, is an abnormal mass of tissue in which cells grow and multiply uncontrollably, seemingly unchecked by the mechanisms that control normal cells. More than 150 different brain tumors have been documented, but the two main groups of brain tumors are termed primary and metastatic. Primary brain tumors include tumors that originate from the tissues of the brain or the brain's immediate surroundings. Metastatic brain tumors include tumors that arise elsewhere in the body (such as the breast or lungs) and migrate to the brain, usually through the bloodstream Barbiturates, Thiopental and pentobarbital decrease CBF, cerebral blood volume (CBV), and ICP. The reduction in ICP with these drugs is related to the reduction in CBF and CBV coupled with metabolic depression. These drugs will also have these effects in patients who have impaired CO2 response. Etomidate, as with barbiturates, etomidate reduces CBF, CMRo2, and ICP. Systemic hypotension occurs less frequently than with barbiturates. Prolonged use of etomidate may suppress the adrenocortical response to stress. Dexmedetomidine as an anesthetic adjuvant improved hemodynamic stability and decreased anesthetic requirements in patients undergoing resection for brain tumors. In addition, DEX provided better surgical field exposure conditions and early recovery from anesthesia. Narcotics, in clinical doses, narcotics produce a minimal to moderate decrease in CBF and CMRo2. When ventilation is adequately maintained, narcotics probably have minimal effects on ICP. Despite its small ICP-elevating effect, fentanyl provides satisfactory analgesia and permits the use of lower concentrations of inhalational anaesthetics
The purpose of this study is to determine whether a 16-week virtual, home-based, high-intensity interval training (HIIT) exercise program will improve physical, cognitive, and emotional health among young adult survivors of pediatric brain tumors. The names of the study interventions involved in this study are/is: - High-Intensity Interval Training (HIIT)
The goal of this multi-center clinical trial is to evaluate the effectiveness of MRI-based computer-aided diagnosis software (V1) for glioma segmentation, gene prediction, and tumor grading. Machine learning methods such as high-precision tumor segmentation and classification and discrimination modeling can further optimize the non-invasive molecular diagnosis and prognosis prediction. The main question it aims to answer is whether the software can predict the molecular type and the prognosis quickly and correctly. The results will be compared with the real-world clinical data double-blindly. Finally, form a set of user-friendly automatic glioma diagnosis and treatment systems for clinics.
Collection of ctDNA and TCR data to predict the efficacy and prognosis of brain radiotherapy in patients with brain metastases from non-small cell lung cancer (NSCLC) in a comprehensive manner
This study seeks to determine the impact of focused ultrasound (FUS) on the composition of the tumor extracellular microenvironment. Researchers will evaluate regions that are very abnormal, as well as regions that have less evidence of disease. A sub-portion of each of these areas will be targeted by focused ultrasound. Microdialysis catheters will then be placd into each region that has and has not been exposed to FUS (total of 4 catheters) to determine how FUS impacts the the brain and tumor extracellular metabolome, including concentration of routine drugs systemically administered prior to, and during surgery. Researchers hope that this information will help reveal the relative contribution of blood-derived compounds to the tumor microenvironment. If successful, microdialysis could be leveraged in the future to simultaneously evaluate pharmacokinetic and pharmacodynamic impacts of future candidate therapies, including those delivered with the aid of FUS.
In this prospective, randomized controlled study, we hypothesized that nociception level index monitoring reduced opioid administration during surgery. The secondary goals are to compare the total dose hypnotic drugs, as well as hemodynamic parameters, and to investigate the relationship between changes in the NOL index and HR change following severe noxious stimuli during effect site TCI of propofol and remifentanil in patients undergoing intracranial tumor surgery who are monitored using either standard monitors or the NOL monitor additionally.
This will be the first in-depth study to evaluate pretreatment and 12 months post-treatment, neurocognitive and psychological outcomes of children with brain tumor and blood cancer in Pakistan. The investigators will also determine the socioeconomic burden of pediatric brain tumors in low middle-income region and the association of micro RNA and protein markers with neurocognitive outcomes in PBT and blood cancer children. A prospective cohort study with a follow-up of 12 months at the Aga Khan University Hospital, Karachi, Pakistan and Jinnah postgraduate Medical Centre , Karachi, Pakistan will be conducted. After taking consent/ assent the investigators will recruit 80, 5-21 years old children with newly diagnosed brain tumors presenting with any stage, who have not undergone any treatment. Trained psychologist will assess the neurocognitive outcomes by the Slosson scale, Raven's progressive matrices and Wechsler Intelligence Scale for children (WISC V) and Wechsler Adult Intelligence Scale (WAIS-IV) tools. The Quality of life and depression of the children will be determined by PedQL and Revised Children's Anxiety and Depression Scale (RCADS) and hospital anxiety and depression scale (HADs) respectively . The financial burden of the disease on the family will be measured on a visual analog scale ranging from no burden (0) to very large burden (100) and the parents QoL and disrupted schedule, financial problems, lack of family support, health problems and the impact of caregiving on caregiver's self-esteem will be assessed by Pediatric Quality of Life Inventory PedQl (family module) and Caregiver Reaction Assessment (CRA) tools respectively. The serum micro RNA (mi-21, mi-10b and mi-210) and protein markers (GFAP, NSE and S100β) will be assessed by qRT-PCR and ELISA.