View clinical trials related to Paraganglioma.
Filter by:Pheochromocytomas and paragangliomas (PPGLs) are chromaffin cells-derived tomours that originate from the adrenal medulla (80~85%) and the extra-adrenal sympathetic paraganglia in thorax, abdomen and pelvis (15~20%) or parasympathetic paraganglia in the head and neck region (~1%), respectively. Functional imaging, such as 123I-Meta-Iodobenzylguanidine (MIBG) scintigraphy with single photon emission computed tomography with a CT (SPECT/CT), offers high specificity for PPGL but necessitates 24-hour delayed imaging, pre-processing thyroid protection with a potassium iodide solution, and medication reconciliation to prevent the inhibition of 123I-MIBG uptake. Conversely, 18F-L-dihydroxyphenylalanine (FDOPA), a radiopharmaceutical for positron emission tomography (PET) imaging, is specifically absorbed and accumulated by chromaffin cells, offering better image quality and convenience compared to 123I-MIBG scintigraphy. 18F-FDOPA PET/CT has been approved for the localization, staging, and detection of PPGL recurrences in European and other countries. Therefore, the aim of this study was to compare prospectively the diagnostic performances of 18F-FDOPA PET/CT and 123I-MIBG scintigraphy with SPECT/CT in patients with PPGL.
Patients affected by pheochromocytoma (PHEO) have brown-adipose tissue (BAT) hyperactivation. They perform, in routine settings, a FDG PET-CT scan. The high metabolic activity of BAT and its ability to consume both glucose and fatty acid suggest that it may have potential as a therapeutic target in the treatment of obesity. However, alternative non-invasive techniques to PET-CT BAT detection still need more validation. Accordingly, our aim will be to measure the temperature and microcirculation of the skin overlaying BAT depots in the region of FDG-uptake detected by 18F-FDG PET/CT before and after a cold test in PHEO patients.
Background: Wild-type gastrointestinal stromal tumor (GIST) is a cancer in the esophagus, stomach, or intestines. It does not respond well to standard chemotherapy or radiation therapy. Most people with GIST are treated with imatinib. But it may not work in many children with GIST. Researchers think the drug SGI-110 may help treat people with GIST, pheochromocytoma and paraganglioma (PHEO/PGL), or kidney cancer related to hereditary leiomyomatosis and renal cell carcinoma (HLRCC). Objective: To learn if SGI-110 causes GIST tumors to shrink or slows their growth. Also to test how it acts in the body. Eligibility: People ages 12 and older who have GIST, PHEO/PGL, or HLRCC that has not responded to other treatments Design: Participants will be screened with: - Physical exam - Urine tests - Computed tomography (CT) or magnetic resonance imaging (MRI), or fluorodeoxyglucose (FDG)-positron emission tomography (PET) scan: A machine takes pictures of the body. - Blood tests Participants will be injected with SGI-110 under the skin each day for 5 days. This cycle will repeat every 28 days. The cycles repeat until their side effects get too bad or their cancer gets worse. Participants will have tests throughout study: - Physical exam and blood and urine tests before each cycle - Blood tests on days 1, 7, 14, and 28 of the first cycle. - Scans before cycle 1 and then every other cycle. - Questionnaires about their pain and quality of life - Tumor biopsy for those 18 and older: A needle removes a small piece of tumor. After they stop treatment, participants will have a final visit. This includes an evaluation of their health, pain, and quality of life. ...
This phase I/II trial studies how well gallium Ga 68-DOTA-TOC positron emission tomography (PET)/computed tomography (CT) or PET/magnetic resonance imaging (MRI) works in imaging patients with somatostatin receptor positive tumors. Gallium Ga 68-DOTA-TOC binds to somatostatin receptor positive tumors and can be seen using a PET scan. A PET scan uses a special camera to detect energy given off from gallium Ga 68-DOTA-TOC, to make detailed pictures of areas where material accumulates in the body. Diagnostic procedures, such as gallium Ga 68-DOTA-TOC PET/CT or PET/MRI, may help find and diagnose somatostatin receptor positive tumors and help plan the best treatment.
This phase II trial studies how well pazopanib hydrochloride works in treating patients with advanced or progressive malignant pheochromocytoma or paraganglioma. Pazopanib hydrochloride may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor.
The purpose of this qualitative study is to evaluate the clarity and comprehensiveness of two disease-specific questionnaires, and to evaluate how effective these questionnaires are at assessing the quality of life and symptoms of patients with pheochromocytoma or paraganglioma.