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Comprehensive Omics Analysis of Pediatric and Adult Solid Tumors and Establishment of a Repository for Related Biological Studies

Sarcoma Endocrine Tumors Neuroblastoma Retinoblastoma +1

Background: \- Laboratory investigators who are studying common childhood cancers are interested in developing a tissue repository to collect and store blood, serum, tissue, urine, or tumors of children who have cancer or adults who have common childhood cancers. To develop this repository, additional samples will be collected from children and adults who have been diagnosed with common childhood cancers such as leukemia and tumors of the central nervous system. Objectives: \- To collect and store blood, serum, tissue, urine, or tumor samples of children who have cancer or adults who have common childhood cancers. Eligibility: * Individuals who have been diagnosed with a common childhood cancer (e.g., leukemia) regardless of patient age. * Children, adolescents, and adults who have been diagnosed with a type of cancer more commonly found in adults. Design: * Extra blood, serum (the liquid part of blood), tissue, urine, or tumor samples will be collected from participants at a time when sampling is required for medical care or as part of a research study. * No additional procedures will be performed for the sole purpose of obtaining additional tumor tissue, aside from what is required for clinical care.

Начало: 21.04.2010 Възраст: от 4 г.

United States National Cancer Institute (NCI) NCT01109394

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Natural History Evaluation of Charcot Marie Tooth Disease (CMT) Types CMT1B, CMT2A, CMT4A, CMT4C, and Others

Charcot Marie Tooth Disease

This is an observational longitudinal study to determine the natural history and genotype-phenotype correlations of disease causing mutations in Charcot Marie Tooth disease (CMT) type 1B (CMT1B), 2A (CMT2A), 4A (CMT4A), and 4C (CMT4C). The investigators will also be determine the capability of the newly developed CMT Pediatric Scale (CMT Peds scale) and the Minimal Dataset to measure impairment and perform longitudinal measurements in patients with multiple forms of CMT over a five year window

Начало: 01.04.2010 Край: 01.12.2026

Australia, Canada, Italy +2 Michael Shy NCT01193075

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Quantitative MRI Assessment of Breast Cancer Therapy Response

Breast Cancer

The goal of this observational study is to investigate and validate multi-parametric magnetic resonance imaging (MRI) modalities for assessment of breast cancer response to neoadjuvant chemotherapy in a multi-site and multi-MRI scanner platform setting. This study is conducted at Oregon Health \& Science University (OHSU), University of Washington (UW), and University of Iowa (UI) using Siemens, Philips, and General Electric MRI scanners, respectively. MRI is a type of scan that uses a very strong magnet and no radiation to take very detailed pictures of parts of the body. MRI is often used as standard of care to take pictures of breast tumor(s) before and after chemotherapy treatment in order to measure the tumor size changes in response to treatment, and in order to plan for surgery. MRI is used because the images it takes are very clear and the borders of the tumor can be measured very accurately. However the tumor size alone is often not a good early indicator of whether or not the tumor responds to treatment. Tumor size change usually happens late during the period of treatment, and tumor size measured with MRI after treatment can overestimate or underestimate the residual cancer. This makes it difficult to do the right surgical planning. In addition to measuring tumor size, the MRI scans in this research study will also measure changes in tumor blood vessels and the number of cancer cells per unit of tumor volume. The purpose of this study is to see whether MRI measurements of these functional tumor properties provide better early prediction and evaluation of breast cancer response to neoadjuvant chemotherapy than tumor size measurement. This is an observational study because the MRI procedures are not expected to have an effect on health outcomes. Eligible participants on this study are receiving standard of care neoadjuvant treatment for their cancer.

Начало: 18.03.2010 Край: 31.05.2027 Възраст: от 18 г.

United States Corewell Health East NCT05704062

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Collection of Human Samples to Study Hairy Cell and Other Leukemias, and to Develop Recombinant Immunotoxins for Cancer Treatment

Hairy Cell Leukemia (HCL) Chronic Lymphocytic Leukemia (CLL) Non-Hodgkins Lymphoma (NHL) Cutaneous T Cell Lymphoma (CTCL) +1

Background: \- Researchers who are studying hairy cell leukemia, and how the disease compares with other disorders, are interested in obtaining additional samples from leukemia patients and healthy volunteers. The investigators are particularly interested in samples from individuals who have diseases that can be treated with a new type of drug called immunotoxin, in which an antibody carrying a toxin binds to a cancer cell and allows the toxin to kill the cell. Objectives: \- To collect a variety of clinical samples, including blood, urine, lymph samples, and other tissues, in order to study the samples and develop new treatments for leukemia. Eligibility: \- Individuals 18 years of age and older who have been diagnosed with leukemia or other kinds of blood and lymphatic system cancers, or who are healthy volunteers. Design: * Individuals who have leukemia will be asked to provide blood, bone marrow, urine, and tumor tissue samples as requested by the researchers. Healthy volunteers will provide only blood and urine samples. * No treatment will be given as part of this protocol.

Начало: 02.03.2010 Възраст: от 18 г.

United States National Cancer Institute (NCI) NCT01087333

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Improving Safety and Quality of Tracheal Intubation Practice in Pediatric ICUs

Failed or Difficult Intubation, Sequela Intubation; Difficult Intubation Complication

Advanced airway interventions are common high risk, high stakes events for children in intensive care units (ICU) and emergency departments (ED), with risk for life and health threatening consequences.

Начало: 01.03.2010 Край: 01.01.2030

Australia, Canada, Germany +7 Children's Hospital of Philadelphia NCT02493478

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Database Registry for Neural Network Biomarkers in Psychosis

Schizophrenia Schizoaffective Disorder

Several observations have been made with magnetic resonance imaging (MRI) that characterize brain connections and brain function in individuals with schizophrenia and other mental disorders. For example, research investigating schizophrenia focuses on the dysfunction of connections within and between the medial temporal lobe and the prefrontal cortex as well as other pertinent brain regions. This database registry will allow for the collection of clinical interview data, behavioral data, blood, magnetic resonance imaging (MRI) data, and functional magnetic resonance imaging (fMRI) data on individuals with and without mental disorders to better understand how connections in the brain and various brain regions function differently while volunteers perform various cognitive tasks. This is an observational study that is being conducted to collect data and place it in a registry for current and future investigational questions related to imaging in mental disorders.

Начало: 01.03.2010 Край: 01.04.2029 Възраст: 18–60 г.

United States University of Texas Southwestern Medical Center NCT01409109

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Testicular Tissue Cryopreservation for Fertility Preservation

Cancer Autoimmune Disorders

Testicular tissue cryopreservation is an experimental procedure where a young boy's testicular tissue is retrieved and frozen. This technique is reserved for young male patients who are not yet producing mature sperm, with the ultimate goal that their tissue may be used in the future to restore fertility when experimental techniques emerge from the research pipeline.

Начало: 06.01.2010 Край: 31.05.2030

United States University of Pittsburgh NCT02972801

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A Phase I Study of Mozobil in the Treatment of Patients With WHIMS

Leukopenia Neutropenia Infections Warts +1

Background: * WHIMS (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis Syndrome) is caused by various genetic changes that increase the activity of the chemokine receptor, CXCR4. Excessive function of this receptor causes mature neutrophils (part of the white blood cells) to be retained within the bone marrow rather than being released to the blood and is one of the causes of severe inherited neutropenia (low white blood counts). In neutropenia, the body is less able to fight off infection. Patients with WHIMS usually are at risk for skin, soft tissue, sinus, and lung infections, which can result in loss of hearing, teeth, and lung function. * Current treatment for WHIMS consists of regular injections of a white blood cell growth stimulating medication called granulocyte colony stimulating factor (G-CSF), and supplemental immunoglobulin (antibody). These therapies are expensive, nonspecific, have significant side effects and toxicities, and do not fully correct all problems, especially warts and cancers related to human papillomavirus (HPV). * A drug called Mozobil has been approved for use in combination with G-CSF to increase the number of stem cells that can be collected prior to bone marrow transplantation. Mozobil may offer a specific and well-tolerated new treatment for WHIMS and other syndromes characterized by neutropenia. Objectives: * To evaluate whether Mozobil is safe and effective to treat neutropenia (low white blood cell count) in patients with WHIMS. * To determine an appropriate treatment dose of Mozobil, within currently approved dosage levels. Eligibility: \- Individuals between 18 and 75 years of age who have been diagnosed with WHIMS and have a history of severe infections. Design: * Potential participants will undergo a screening with a medical history, physical examination, questionnaire, heart and lung function scans, and blood and urine samples. Tests will also be done for hepatitis B and C virus, and human immunodeficiency virus (HIV) that causes acquired immunodeficiency syndrome (AIDS), as well as to check neutrophil function. * Patients who are being treated with G-CSF will stop injections for 2 days before being admitted to the National Institutes of Health (NIH) Clinical Center. * Patients may participate in a Dose Escalation study and receive increasing doses of Mozobil over 5 days of treatment until their white blood cell count improves sufficiently or the maximum approved dose is reached. Blood samples will be taken regularly throughout the treatment process. Patients will then receive an additional dose of Mozobil at the maximum approved dose or the dose sufficient to cause improvement, before restarting the G-CSF injections. * Patients may also participate in a long-term Chronic Dosing study and receive Mozobil once or twice a day for up to a maximum of 60 months.

Начало: 06.01.2010 Край: 31.12.2026 Възраст: 18–75 г.

United States National Institute of Allergy and Infectious Diseases ( NCT00967785

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Ileal Crohn's Disease and Post-operative Outcome: Prospective Cohort Study of the REMIND Group

Crohn Disease

Crohn's disease (CD), a chronic inflammatory process in intestinal segments leads to tissue damage. More than two thirds of CD patients need intestinal resection. Symptomatic clinical recurrence occurs in 60% by 10 years. The principal factors affecting postoperative recurrence are active smoking, penetrating disease, perianal lesions history, prior intestinal resection, small bowel resection extent, and prophylaxis treatment absence. Ileocolonoscopy within one year of surgery can predict clinical recurrence risk. Different therapies are proposed after surgery, to prevent post-operative recurrence : Thiopurines, 6-mercaptopurine (positive for clinical and endoscopic postoperative recurrence prevention), Anti-tumour necrosis factor therapy (anti-TNF), the most effective therapy. Intestinal microbiota acts as a central factor in the CD pathogenesis, and fecal stream role is clearly shown. Various changes in luminal flora with a possible link to local inflammation was also demonstrated. Bacteria associated with postoperative recurrence could be more pathogenic as adherent invasive E coli (AIEC), which could be a pathogen in CD through several mechanisms including increased mucosal colonization, adherence, replication and induction of TNF secretion. Alternatively, postoperative CD recurrence could be linked to a protective commensal species lack, such as Faecalibacterium prausnitzii. Microscopic inflammation occurs as early as 8 days after anastomosis in the neoterminal ileum mucosa. IL6, IL10 and TGFb levels, measured in neoterminal ileum early after surgery are associated with different rates of postoperative recurrence. It suggests cytokines implication in postoperative recurrence. T cells are major players in the intestinal immune response. The presence at time of surgery and persistence of disease inducing T cell clonal expansions could play an important role in post-operative recurrence. The main objective is to define a classification of ileal Crohn's Disease based on data integration on a large cohort of patients.

Начало: 10.12.2009 Край: 01.12.2035 Възраст: 18–100 г.

Belgium, France Saint-Louis Hospital, Paris, France NCT03458195

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Characteristics of Patients With Recessive Dystrophic Epidermolysis Bullosa

Epidermolysis Bullosa Dystrophica

Recessive dystrophic epidermolysis bullosa (RDEB) is a disease caused by genetic mutations in the gene for type VII collagen. Patients with RDEB develop large, severely painful blisters and open wounds from minor trauma to their skin. We are screening subjects with RDEB to evaluate characteristics of the subjects and their cells in order to develop new strategies of therapy and determine whether subjects could be candidates for treatment studies.

Начало: 10.11.2009 Край: 31.12.2029

United States Stanford University NCT01019148

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Prospective Comprehensive Molecular Analysis of Endocrine Neoplasms

Endocrine Tumors Thyroid Neoplasms Parathyroid Neoplasms Adrenal Neoplasm +1

Background: * Endocrine neoplasms (tumors) are among the fastest growing tumors in incidence in the United States. Furthermore, it is often difficult to distinguish between benign or malignant tumors in cancers of the thyroid, parathyroid, adrenal gland, and pancreas. More research is needed to improve detection and treatment options for patients who develop these kinds of cancer. * Researchers are interested in studying the molecular changes that are involved in endocrine cancer development and growth. To collect a sample of tumor specimens and healthy tissue for further study, researchers are specifically looking for samples from participants who are scheduled for surgery or biopsy on endocrine tumors. Objectives: \- To collect samples of precancerous, cancerous, and healthy tissue from individuals who are scheduled for surgery or biopsy of endocrine system tumors. Eligibility: \- Individuals who have a tumor in or around their thyroid, parathyroid, adrenal gland, pancreas, or any neuroendocrine tissue, and are scheduled for surgery at the National Institutes of Health Clinical Center. Design: * Participants in this study will provide blood and urine samples prior to surgery. * During the surgery or biopsy, pieces of the tumor or precancerous growth and pieces of normal tissue near to the tumor will be removed for ongoing and future research. The rest of the tumor or growth will be sent for analysis. * After surgery, participants will receive routine care until discharge, and doctors will discuss possible treatment options. If there is an appropriate NIH protocol, participants may choose to be treated at the NIH. * After discharge, participants will return to the clinic for a routine postoperative check about 6 weeks following the operation, and then may be followed yearly at the Clinical Center or by phone....

Начало: 07.10.2009 Възраст: от 4 г.

United States National Cancer Institute (NCI) NCT01005654

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The Natural History of Severe Viral Infections and Characterization of Immune Defects in Patients Without Known Immunocompromise

EBV HSV VZV HPV +1

Background: * Infections caused by viruses are common causes of illnesses: the common cold, many ear infections, sore throats, chicken pox, and the flu are caused by different viruses. Usually, these illnesses last only few days or, at most, a few weeks. Some virus infections like influenza are cleared from the body, and others such as the chicken pox virus remain in the body in an inactive state. However, some people may become quite ill when they are infected with a particular virus, possibly because part of their immune system does not respond properly to fight the virus. * Researchers have discovered some reasons why a person may not be able to clear an infection caused by a virus. Some persons have changes in the genes that involve the immune system that result in the inability to properly control infection with a particular virus. Identifying changes in genes that involve the immune system should help scientists better understand how the immune system works to protect people from infection and may help develop new therapies. Objectives: * To study possible immune defects that may be linked to a particular severe viral infection. * To determine if identified immune defects are genetic in origin. Eligibility: * Individuals of any age who have or have had a diagnosis of a virus infection that physicians consider to be unusually severe, prolonged, or difficult to treat. * Relatives of the participants with a severe viral infection may also participate in the study. We will use their blood and/or skin specimens to try to determine if identified immune defects are hereditary. Design: * Prior to the study, the participant's doctor will give researchers the details of the infection, along with medical records for review. Eligible participants will be invited to the NIH Clinical Center for a full evaluation as an outpatient or inpatient. * At the Clinical Center, participants will be treated with the best available therapy for the particular viral infection, and researchers will monitor how the infection responds to the treatment. * Researchers will take intermittent blood samples and conduct other tests (such as skin biopsies) to evaluate the immune system. - During and after the illness, researchers will conduct follow-up visits to determine the course of infection and response to therapy.

Начало: 01.10.2009 Възраст: 2–100 г.

United States National Institute of Allergy and Infectious Diseases ( NCT01011712

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Etiology, Pathogenesis, and Natural History of Idiopathic CD4+ Lymphocytopenia

Idiopathic CD4+ Lymphocytopenia Cryptococcal Meningitis Warts

Background: * Idiopathic CD4+ lymphocytopenia (ICL) is a condition in which there is a decreased level of CD4+ lymphocytes (a type of white blood cell), which can lead to opportunistic infections or autoimmune disorders and diseases. Objectives: * To characterize the natural history with regard to CD4+ T cell count and onset of infection, malignancy, and autoimmunity. * To describe the immunological status of patients affected by ICL while providing the best possible standard therapy to eradicate opportunistic infections. * To establish the timeline of CD4 lymphocytopenia, with particular focus on defining subgroups of patients according to the decline, stabilization, or rise of CD4+ T cell counts over time. * To characterize the opportunistic infections that occur in ICL patients at microbiologic and molecular levels. * To characterize the immunophenotype and possible genetic immunodeficiency causes of ICL. * To determine whether measurable immunologic parameters correlate with the development of opportunistic infections or other comorbidities such as lymphoma in patients with ICL. * To determine whether there is any association between ICL and autoimmunity. * To determine CD4+ T cell turnover, survival, functionality, and cytokine responsiveness in ICL patients. Eligibility: * Patients 2 years of age and older with an absolute CD4 count less than 300 in children 6 years or older and adults or less than 20% of T cells in children younger than 6 on two occasions at least 6 weeks apart. * Patients with negative results of HIV testing by ELISA, Western Blot, and viral load. * Patients must not have underlying immunodeficiency conditions, be receiving cytotoxic chemotherapy (anti-cancer drugs that kill cells), or have cancer. Design: * At the initial visit to the National Institutes of Health, the following evaluations will be conducted: * Personal and family medical histories. * Physical examination, including rheumatology evaluation and other consultations as medically indicated (e.g., dermatology, pulmonology, ophthalmology, imaging studies). * Blood samples for analysis of red and white blood cell counts, liver function, immune hormones, and antibody and autoantibody levels, white blood cell growth and function, and DNA. * Urinalysis and urine pregnancy testing for female patients of childbearing age. * Evaluation and treatment of active infections as medically indicated, including biopsies, buccal swabs, pulmonary function tests, and imaging studies. * Follow-up visits will take place approximately every 12 months or more frequently if indicated, and will continue for a minimum of 4 years and a maximum of 10 years. * Evaluations at follow-up will include blood samples (i.e., CBC with differential, biochemical profile, HIV testing, etc.) and urinalysis and rheumatology consults.

Начало: 13.07.2009 Възраст: от 18 г.

United States National Institute of Allergy and Infectious Diseases ( NCT00867269

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Genetic and Functional Analysis of Craniometaphyseal Dysplasia (CMD)

Craniometaphyseal Dysplasia

CMD can be inherited in an autosomal dominant or recessive trait. CMD may also be caused by de novo mutations. The goal of this study is to identify genes and regulatory elements on chromosomes that are the cause for CMD. The investigators also study blood samples and tissue samples from patients to learn about the processes that lead to this disorder. The investigators long-term goal is to find mechanisms to slow down bone deposition in CMD patients.

Начало: 01.04.2009 Край: 01.12.2030

United States UConn Health NCT01630460

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Genetics of Type 2 Diabetes in West Africans

Hypertension Diabetes

Background: * Type 2 diabetes (T2D) and associated complications are major contributors to the global disease burden. T2D is already a major health threat in populations in developed countries and is rapidly taking hold in the developing world. * It is believed that understanding the complex interplay between genetic and lifestyle characteristics in the etiology of T2D and related complications will lead to the development of better preventive and therapeutic strategies. In Addition, the results of this project will facilitate our understanding of causes of diabetes in African Americans, other US and world populations Objectives: * To conduct a genome-wide association study (GWAS) to identify susceptibility genetic variants for diabetes among the Yoruba people in Ibadan, Nigeria. * To enroll and examine 300 unrelated cases of T2D and 300 ethnicity-matched Yoruba controls. * To conduct resequencing of positional candidate gene/loci to identify likely functional variants in a subset of the cohort. * To conduct replication studies of the top-100 scoring variants in three independent African and European ancestry samples. * To investigate whether diabetes-associated variants discovered in European populations increase diabetes risk in West Africans. Eligibility: * Patients 18 years of age with confirmed T2D who are newly diagnosed or on treatment of Yoruba ethnicity in Ibadan, Nigeria. Control subjects are nondiabetics ethnically matched to patients. Design: * The study design for both patients and controls consists of the following steps: * Discuss informed consent process and obtain signed informed consent form. Informed consent will be administered by trained clinic staff. * Assign study ID (barcode) * Administer questionnaires * Obtain spot urine sample * Measure blood pressure * Obtain anthropometric measurements including body composition * Perform finger prick for blood glucose level * Obtain venous blood samples * Perform eye examination * On the following day, perform confirmatory blood glucose for the small subset of participants requiring confirmation of previous test result DNA extraction of stored samples will be done at either the National Institutes of Health or the laboratory in Nigeria. * GWAS will be conducted using publicly available software packages.

Начало: 03.02.2009 Възраст: 18–120 г.

Ghana, Nigeria National Human Genome Research Institute (NHGRI) NCT00837122

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Dominantly Inherited Alzheimer Network (DIAN)

Alzheimer's Disease

The purpose of this study is to identify potential biomarkers that may predict the development of Alzheimer's disease in people who carry an Alzheimer's mutation.

Начало: 01.01.2009 Край: 01.07.2026 Възраст: от 18 г.

Argentina, Australia, Brazil +10 Washington University School of Medicine NCT00869817

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Development of 3T Magnetic Resonance Research Methods for NIA Studies

Normal Physiology

Background: \- Magnetic resonance imaging (MRI) studies provide important information on the structure and function of various body systems, including the brain, muscles, joints, heart, and blood vessels. Scientific applications of MRI scans often use techniques that need to be modified or refined before they are used in clinical studies. To develop and modify these techniques for the new Philips 3T Achieva whole-body MRI scanner, researchers are interested in conducting trial MRI scans on healthy individuals and individuals with conditions that require imaging studies. Objectives: \- To conduct preliminary trials of the 3T MRI facility to develop and refine MRI scanning procedures. Eligibility: \- Individuals at least 18 years of age who are able to have magnetic resonance imaging. Design: * Participants will be screened with a full medical history and physical examination, as well as blood and urine tests. * Participants will have an MRI scan using the 3T scanner. Some scans may require the use of a contrast agent or radiotracer, which is a small amount of radioactive substance that will be injected before the start of the scan. Some participants may be asked to perform tasks of thinking and movement while in the scanner, in order to test the procedures required for a functional MRI scan. * No treatment will be provided as part of this protocol.

Начало: 03.11.2008 Възраст: 18–99 г.

United States National Institute on Aging (NIA) NCT01324206

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Comprehensive Multimodal Analysis of Neuroimmunological Diseases of the Central Nervous System

Central Nervous System Disease Multiple Sclerosis

Inflammatory or degenerative diseases of the brain and spinal cord, such as multiple sclerosis, may be related to problems with an individual s immune system. However, more information is needed on the ways in which the cells of the immune system interact with the central nervous system (CNS). This study will compare tests performed on both healthy volunteers and individuals who have signs or symptoms of immune-related damage to their CNS. This study will include two groups of subjects at least 12 years old. Subjects will either have symptoms of immune-related CNS damage, or will be healthy volunteers selected for comparison purposes. Study participants will visit the NIH Clinical Center on an outpatient basis for an initial evaluation visit. During the visit, patients will provide a comprehensive medical history and undergo a neurological examination, and will provide blood samples for research purposes. The healthy volunteers will be asked to schedule a return visit for a magnetic resonance imaging (MRI) procedure, and may be asked to undergo other tests requested by the study researchers on an as-needed basis. The group of patients with symptoms of immune-related CNS damage will be asked to undergo a series of tests, including the following: * MRI procedures, with a minimum of three brain MRIs and one spinal cord MRI taken approximately 4 weeks apart * A diagnostic lumbar puncture, performed on an outpatient basis * Tests of brain and vision activity * Additional blood and tissue samples Patients with symptoms of immune-related CNS damage may be offered the opportunity to participate in additional followup tests with NIH researchers.

Начало: 01.10.2008 Възраст: 1–99 г.

United States National Institute of Allergy and Infectious Diseases ( NCT00794352

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DeBakey Cardiovascular Magnetic Resonance Study

Cardiovascular Diseases

While advancements in cardiac magnetic resonance (CMR) have improved image quality, it is unclear how these improvements are connected to the clinical evaluation of individuals with cardiovascular disease. The aim of this large prospective registry revolves around 4 key principles: 1) utilize CMR to gain additional pathophysiologic insights into cardiovascular disease, 2) understand how CMR compares to alternative cardiovascular diagnostic modalities, 3) determine how CMR affects clinical management decisions, and 4) establish a link between CMR findings and long term prognosis in patients with known or suspected cardiovascular disease. The ultimate aim is to utilize CMR to improve patient outcomes. CMR techniques to be studies include function, fibrosis, and flow. Focus areas include valvular heart disease, ischemic heart disease, cardiomyopathies, and vascular disease.

Начало: 01.04.2008 Край: 01.04.2058

United States Dipan Shah NCT04281823

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Natural History Study of Patients With Neurofibromatosis Type 2

Neurofibromatosis

Objective With this prospective natural experiment trial on neurofibromatosis type 2 (NF2) study, we hope to understand the factors leading to tumor progression and neurological disease burden in NF2. Study Population A total of 269 participants, ages 8-75, with a clinical or genetic diagnosis of NF2 will participate in this study. Design Study participants will be evaluated with a thorough physical and neurologic examination upon enrollment. This initial outpatient evaluation will include magnetic resonance imaging with contrast of brain and spine and blood collection for research use. Participants with measurable hearing will have audiology assessment performed. Participants with untreated vestibular schwannomas will have vestibular assessment performed during the initial visit. Genetic studies performed outside will be acceptable as confirmation of NF2 in enrolled patients. If needed to confirm NF2 with genetic studies, or for research purpose, whole genome/whole exome sequencing may be performed on blood obtained from subjects enrolled in this study. All participants will be evaluated by a speech language pathologist. Subjects will be followed as outpatients for up to ten years, during which clinical, and radiologic evaluation will be performed annually. Auditory testing will be performed annually for participants with measurable hearing. Participants with initially untreated vestibular schwannomas will be followed annually with vestibular testing. Speech and swallowing reassessments will be repeated if worsening of speech or swallowing is reported. Blood will be collected at each visit for blood biomarker testing Outcome measures We hope to understand the biologic basis for speech and swallowing dysfunction in patients with NF2. We will study and report the strength of association of MRI findings, clinical assessments cranial nerve deficits and speech/swallowing dysfunction. We hope to identify imaging biomarkers of hearing loss in NF2. We will attempt to discover the mode of peripheral neuropathy in patients with NF2. Lastly, we will attempt to discover previously unknown serum biomarkers associated with high tumor burden in NF2. ...

Начало: 21.03.2008 Възраст: 8–75 г.

United States National Institute of Neurological Disorders and Stroke NCT00598351

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