5 Clinical Trials for Various Conditions
The objective is to conduct an exploratory study on the effect of Omalizumab on COPD patients with elevated IgE. Exploratory outcomes include to determine whether Omalizumab use: reduces exacerbations in COPD patients; or improves rescue medication use, decreases ICS use, modified Medical Research Council (MMRC) dyspnea score, St. George's Respiratory Questionnaire (SGRQ), 6-minute walk distance (6MWD), forced expiratory volume at one second (FEV1)(the latter 3 with BMI make up the BODE score), residual volume (RV), total lung capacity (TLC), exhaled nitric oxide (ENO), and determination C-reactive protein (CRP).
Background: * Mast cells are responsible for most symptoms of allergic reactions. In some allergic diseases, it is unusually easy to cause mast cells to release their contents and cause allergic reactions. In other cases, mast cells grow abnormally and, in rare cases, can result in tumors. Mast cells also control other parts of the immune system. * Understanding why mast cells behave abnormally in allergic diseases is important to finding better ways for diagnosing and treating these potentially life-threatening disorders. Objectives: * To screen mast cells at the genetic and functional levels to characterize abnormalities, identify mutations, detect carrier states, and/or develop therapies for such disorders. * To create a library of information about inherited diseases of mast cell homeostasis and activation, including piebaldism (problems with skin and hair pigmentation), anaphylaxis (severe allergic reaction), allergies, asthma, atopic dermatitis (eczema), allergic rhinitis ( hay fever ), food allergies, urticaria/angioedema (hives/swelling), immunodeficiency diseases, and autoimmune diseases. Eligibility: * Patients between the ages of 1 and 80 years who have been referred by a physician and are known to have or be suspected of having an inherited disorder of mast cells, in particular patients (and their relatives) with piebaldism, allergies, or anaphylaxis that is not caused by allergies. Design: * Study population will consist of up to 1000 participants in a 5-year period. One third of the study population will consist of patients; the other two thirds will consist of biological relatives. * Evaluation is limited to testing on blood specimens; no treatment will be provided. * Clinical and research laboratory evaluations of patients will include the following: * Clinical evaluation and previous laboratory tests as documented in outside medical records by health care providers. A standard questionnaire will also be administered at the time of subject enrollment. * Blood collection for clinical laboratory testing, tailored to each subject s clinical evaluation where appropriate (5 ml). * Blood collection for research laboratory testing, tailored to each subject s clinical evaluation including genetic screening and assessment of mast cell growth and functioning and storage of additional frozen blood specimens for future studies (up to an additional 30 ml). * Evaluations of blood relatives will include the following: * Clinical evaluation as documented from outside medical records by health care providers and administration of a standard questionnaire. * Blood collection where indicated for diagnostic or research purposes. * After 12 consecutive months on the study, results from initial evaluation will be reviewed. Subjects with findings deemed to be of continued interest will be contacted and invited to remain as active participants to this protocol for another year, provided that they renew their consent to participate.
This protocol is a natural history study designed to evaluate subjects (and some family members) with suspected or identified genetic diseases of allergic inflammation or Immune Dysregulation. Patients determined by clinical history and outside evaluations to be of interest will be consented and enrolled into this study. Blood specimens, stored blood products and derivatives, saliva, hair, fingernail clippings, cord blood, umbilical cord, bone marrow, tissue biopsies and/or buccal swabs from such patients and/or their family members will be obtained for research studies related to understanding genetic and immunopathogenic bases of these diseases. Outside medical records may be obtained, and patient evaluations may be performed to correlate to research laboratory testing results.
In this project, the investigators would like to learn if 24 weeks (about 5 and a half months) of omalizumab injections, given every 2 weeks, will be safe and effective for food allergic people who have a total immunoglobulin E (IgE) above the current FDA approved dosing regimen enabling a person to increase tolerance to the food(s) that the person is allergic to. The investigators would also like to learn if participants who demonstrate increased tolerance to food after 24 weeks of omalizumab, can introduce the food into the diet utilizing an additional 8 weeks (about 2 months) of twice weekly omalizumab injections.
Background: Atopic dermatitis (AD), also called eczema, makes skin dry, red, and itchy. People with AD are more likely to get a food allergy than people without AD. But some food allergy tests are not always accurate in people with AD. Researchers want to study if people are truly allergic to milk and/or peanuts. Objectives: To improve the ways doctors test for food allergy in people with AD. Eligibility: People ages 3 21 who have had AD; have a high total IgE level (an allergic antibody); might have a milk and/or peanut allergy; and are currently enrolled in another NIH study Design: Participants will be screened under another protocol. Participants will have a physical exam, blood tests, and medical history. Participants will breathe into a plastic device that measures lung strength. Participants may get a small plastic tube inserted in their arm. Participants who have not had an allergic reaction to food in the past 3 years will do 1 or more oral food challenge (OFCs) depending on their allergies. They will eat a little bit of the food they might be allergic to. They will be watched for a reaction. If they have one, they will know for sure they are allergic. They may keep eating bigger portions of the food until they either have a reaction or finish all the food. In some OFCs, participants will get a placebo food. OFCs will last a few hours or 2 days. Participants will repeat all tests at each OFC. Participation can last up to 12 months. ...