View clinical trials related to Hippel-Lindau Disease.
Filter by:Background: - Neuroendocrine tumors (NETs) are rare but have been more common over the past decade. The only treatment for NETs is surgery, but most are found when they are too advanced for surgery. Researchers are looking for the best way to find NETs earlier, so that surgery can be successful. They want to test if the study drug can be used along with imaging devices to detect NETs. Objectives: - To see how well a new experimental imaging agent, 68Gallium-DOTATATE, detects unknown primary and metastatic NETs in the gastrointestinal system and pancreas. Eligibility: - Adults over 10 years old with a suspected NET or family history of NET. Design: - Participants will be screened with a medical history and physical exam, and have a blood test. - Participants will undergo three scans. For all of these, a substance is injected into their body, they lie on a table, and a machine takes images. - A standard computed tomography (CT) scan of the chest, abdomen, and pelvis. - An octreotide scintigraphy Single photon emission computed tomography (SPECT)/CT. - A 68Gallium-DOTATATE positron emission tomography (PET)/CT. The study drug is injected into a vein, usually in the arm. Low-dose X-rays go through the body. For about 40 minutes a large, donut-shaped device takes images of the body. The entire session takes 90 to 120 minutes. - Researchers will compare images from the three scans. - Participants will have 1 follow-up visit each year for 5 years. At this visit, they will have a medical exam, blood taken, and a CT scan.
This study will examine whether the drug 17AAG (17-allylamino 17-demethoxygeldanamycin) can shrink kidney tumors in patients with Von Hippel-Lindau disease (VHL), a rare, inherited syndrome in which patients develop tumors in certain parts of the body. 17AAG contributes to the destruction of proteins in cells that may play in role in causing cancer and spurring tumor growth. The study will also look at the effect of 17AAG on other tumors patients may have that are caused by VHL, on the amount of blood vessels in the tumors, on the biologic activity of the tumor, and on cells circulating in the bloodstream, as well as the safety of the drug and its impact on the kidney tumor in patients whose tumor(s) is removed. Patients 18 years of age and older with von Hippel-Lindau disease who have at least one kidney tumor large enough to pose a risk of metastasis (spread of cancer to other parts of the body) may be eligible for this study. Candidates are screened with a medical history and physical examination, computed tomography (CT) scan, brain magnetic resonance imaging (MRI), see below), and blood and urine tests. Additional tests, including a 24-hour urine collection, ultrasound of the testicles in men, hearing test, eye exam, and MRI of the spine, may be done if recent test results are not available. Participants undergo the following tests and procedures: MRI: This test uses a strong magnetic field and radio waves to show structural and chemical changes in tissue. During the scan, the patient lies on a table in a narrow cylinder containing a magnetic field, wearing earplugs to muffle loud noises that occur with electrical switching of the magnetic fields. A catheter (plastic tube) is inserted into the patient's arm to administer a contrast dye that enhances the images. 17AAG treatment: Patients receive 17AAG infusions into a vein once a week for 3 weeks out of every 4, for 3 months. The infusions last up to 1 to 2 hours. Repeat testing: After 3 months, patients have repeat MRI scans to measure changes in tumor activity, blood flow, and number of blood vessels in the tumor since the pretreatment scans. They may have additional tests, including a CT scan, eye exam, and other tests to evaluate the effect of 17AAG on the tumors.
This study will test the ability of the experimental drug EYE001 to reduce retinal thickening and improve vision in patients with Von Hippel-Lindau syndrome (VHL). Angiomas (blood vessel tumors) commonly develop in the back of the eye on the retina and the optic nerve in patients with VHL. Although the tumors are not cancerous, they may cause significant vision loss. Current treatments, including laser therapy, cryotherapy, and vitrectomy, may not be successful or possible for all patients. EYE001 decreases production of VEGF, a growth factor that is important for the formation of new blood vessels and that is elevated in VHL. Preliminary findings from studies of other retinal diseases suggest that EYE001 can reduce retinal thickening and improve vision. Patients 18 years of age and older with retinal angiomas due to VHL in one or both eyes and central vision loss of 20/40 or worse may be eligible for this study. Participants will undergo the following tests and procedures: - Medical history, physical examination, electrocardiogram (EKG) and blood tests. - Eye examination, including eye pressure measurement and dilation of the pupils to examine the retina. - Fluorescein angiography to evaluate the eye's blood vessels. For this test, a yellow dye is injected into an arm vein and travels to the blood vessels in the eyes. Pictures of the retina are taken using a camera that flashes a blue light into the eye. The pictures will reveal if any dye has leaked from the vessels into the retina, indicating possible blood vessel abnormality. - Optical coherence tomography to measure retinal thickness. The eyes are examined through a machine that produces cross-sectional pictures of the retina. These measures are repeated during the study to determine changes, if any, in retinal thickening. - Electroretinogram (ERG) to measure electrical responses generated from within the retina. For this test, the patient sits in a dark room for 30 minutes with his or her eyes patched. Then, a small silver disk electrode is taped to the forehead, the eye patches are removed, the surface of the eye is numbed with eye drops, and contact lenses are placed on the eyes. The patient looks inside an open white globe that emits a series of light flashes for about 20 minutes. The contact lenses sense small electrical signals generated by the retina when the light flashes. - Stereoscopic color fundus photography to examine the back of the eye. The pupils are dilated with eye drops to examine and photograph the back of the eye. - EYE001 injections to treat ocular angiomas. Patients receive EYE001 injections through a needle into the eye's vitreous (gel-like substance that fills the inside of the eye). Six injections are given over a 30-week period. Before each injection, the surface of the eye is numbed with anesthetic eye drops. This is followed by injection of another anesthetic into the lower portion of they eye in the clear tissue surrounding the white of the eye. After a few minutes, the EYE001 is injected into the vitreous. Patients receive EYE001 injections at the first visit (during enrollment) and again at 6, 12, 18, 24, and 30 weeks after the first injection. At each injection visit, participants repeat most of the tests described above to evaluate the response to treatment and return a week later for another eye examination. After the last injection, patients whose vision has improved may receive three more treatments at visits 36, 42, and 48. All participants will return for examinations at week 54 and at 2 months after their final injection.
The purpose of this study is to learn more about the growth of brain and spinal cord tumors and cysts that develop in association with them in patients with von Hippel-Lindau disease. It will examine how fast the tumors grow and try to determine what factors (for example, puberty , pregnancy, menopause, blood proteins, etc.) affect their growth. Patients between the ages of 8 and 75 years who are enrolled in NIH s study of von Hippel-Lindau disease may be eligible for this 5-year study. Participants will have magnetic resonance imaging (MRI) of the brain and spinal cord and a thorough neurological history and examination at the start of the study. A blood sample will be taken for analysis of factors (hormones or other proteins) that may predict tumor growth. Follow-up clinic visits every 6 months will include a physical and neurological examination, blood tests, and MRI scans of the brain and spine. If symptoms or tumor growth requires more frequent follow-up, scans will be done at 3-month intervals. Surgical removal of brain and spinal cord tumors is currently the treatment of choice when these lesions cause neurological problems. A better understanding of which tumors are likely to grow and which will remain stable may help guide physicians in treatment decisions and avoid unnecessary procedures. ...