View clinical trials related to Infections.
Filter by:The objective of this registry is to broaden the knowledge on epidemiology, diagnostic procedures and clinical course of emerging invasive fungal infections.
Objective- The purpose of this study is to evaluate a connection between PH,PCO2,HCO3,PO2,Na,K,Glu and Lactate patterns in vacuum drains of different plastic operational wounds and its relation to infections and seroma formation.
To compare the immunophenotyping and immunochemistry in the gut mucosa of HIV negative and non-acute HIV-infected adults 1. To compare the immunophenotyping of the gut mucosa to that of the peripheral blood in HIV negative and in non-acute HIV-infected subjects 2. To compare the immunophenotyping of the peripheral blood in HIV negative and non-acute HIV-infected adults to the findings from acutely HIV-infected subjects in the WRAIR#1494/RV254/ SEARCH 010 study 3. To compare immunologic markers in the genital compartment compared to the peripheral blood in HIV negative and non-acute HIV-infected adults to the findings from acutely HIV-infected subjects in the WRAIR#1494/RV254/ SEARCH 010 study 4. Archive samples for immunologic and virologic testing
Background: - The immune system is made up of special cells, tissues, and organs that fight infections. Problems with this system may lead to frequent, severe, or unusual fungal infections. These infections are often difficult to treat. Researchers want to collect blood and tissue samples from people who have unusual, persistent or severe fungal infections or immune problems that increase the risk of these infections. Objectives: - To collect medical information and samples for a long-term study of people with immune system problems that lead to fungal infections. Eligibility: - People with a history of fungal infections caused by immune system problems. - Parents, children, and siblings of this group. - Healthy volunteers not related to the first two groups. Design: - This long-term study may last for up to 10 years. Those in the study may need to provide new information about every 6 months. The procedures for each person may vary with the particular diagnosis and the extent of fungal infection. Healthy volunteers may have only one or two visits. - At the first visit, those in the study will have a full medical history and physical exam. They will also provide blood. - Research procedures may include the following: - Saliva, urine or stool testing - Mouthwash collection for DNA testing - Collection of cheek cells, nail clippings, or vaginal fluid - Tests of leftover tissue or body fluid from previous medical procedures - Skin or oral mucous membrane biopsy - Collection of white blood cells - Followup visits will involve a physical exam and updated medical history. Blood, saliva, urine, or nail clipping samples may be taken for ongoing studies. Any additional tests or exams required by the study doctors may also be done. - Participants may withdraw from the study pool at any time.
Background: - Viral infections are an important cause of illness and death in hospitalized patients as well as outpatients. New strains of viruses may appear and infect both healthy people and those with weak immune systems. A better understanding of these new virus strains (such as SARS-CoV-2, the virus that causes COVID-19) may help to control and prevent these infections. In particular, some viral infections that are less problematic in healthy persons can be life threatening in persons with weak immune systems, and viruses may be able to evolve more rapidly in persons with weak immune systems and therefore develop resistance to existing treatments. Researchers are interested in collecting samples and information from otherwise healthy persons or persons with weak immune systems to study the effects of viruses and their development. Objectives: - To collect samples and data from individuals who have been exposed to or have contracted viral infections. Eligibility: - Individuals of all ages who have been diagnosed with a viral infection are suspected to have a viral infection, or have been in close contact with someone with a suspected or actual viral infection that is of interest to investigators in the Laboratory of Infectious Diseases. - Healthy persons and persons with weak immune systems (immunocompromised individuals) are eligible to participate. Design: - Participants will be pre-screened to determine if they meet the eligibility criteria for the trial. - If eligible, evaluation may include a medical chart review, a history and physical examination, review of clinical reports from outside hospitals and laboratories, and review of tissue biopsies. - Study procedures may include collection of blood, urine, saliva, nasal fluid sampling, throat swabs, stool, and genital swabs. For participants who have specimens collected as part of their medical care (e.g. wound swabs, spinal tap, bronchoscopy, liver biopsy etc.), researchers may use leftover specimens from the clinical laboratory for testing. - Specimens may be collected up to 4 times per week during the first 2 weeks after enrollment, and then as many as 2 times per week for up to 2 years. Some participants may be asked to continue providing specimens if there is concern for relapse or recurrence of the infection. - Treatment is not offered under this study.
Background: - Researchers are interested in studying disorders that make individuals more susceptible to fungal infections, specifically infections with the Candida yeast. These disorders are often related to problems with the immune system and may have genetic factors, which suggests that researchers should study not only the individual with the disorder, but also his or her first- and second-degree relatives (such as parents, siblings, children, and first cousins). To provide material for future research, individuals with immune disorders and their first- and second-degree relatives will be asked to provide blood and other samples for testing and comparison with samples taken from healthy volunteers with no history of immune disorders. Objectives: - To collect blood and other biological samples to study immune disorders that make individuals more susceptible to fungal infections. Eligibility: - Individuals of any age who have abnormal immune function characterized by recurrent or unusual fungal infections, recurrent or chronic inflammation, or other types of immune dysfunction. - First- or second-degree genetically related family members (limited to mother, father, siblings, grandparents, children, aunts, uncles, and first cousins). - Healthy volunteers at least 18 years of age (for comparison purposes). Design: - Participants will provide blood samples and buccal (cells from the inside of the mouth near the cheek) samples. - Participants with immune disorders will also be asked to provide urine samples, saliva or mucosal samples, or skin tissue biopsies, and may also have imaging studies (such as x-rays) to collect information for research. - Samples may be collected at the National Institutes of Health or at other clinical locations for the samples to the sent to the National Institutes of Health. - No treatment will be provided as part of this protocol.
Background: - Increased clinical attention has been paid to the evaluation and management of bioterrorism-related illness (such as anthrax infection) and emerging infectious diseases (such as Severe Acute Respiratory Syndrome [SARS] and new strains of influenza). However, evaluation and treatment data for these illnesses are often limited because human infections to date have been relatively limited. Further knowledge about diseases of bioterrorism concern and emerging infectious diseases may lead to more effective forms of therapy to prevent disease-related illnesses and deaths. Objectives: - To apply standardized, documented, and carefully monitored evaluation and treatment methods for bioterrorism- and biodefense-related illnesses and emerging infectious diseases at the National Institutes of Health Clinical Center. Eligibility: - Individuals at least 2 years of age who have confirmed or suspected infection by a biodefense or bioterrorism agent, or an emerging infectious disease agent. - Individuals at least 2 years of age who have confirmed or suspected exposure to a biodefense or bioterrorism agent, an emerging infectious disease agent, or who have close exposure to an individual who is suspected of being infected with one of these agents. - Health care workers who are involved in medical treatment of the abovementioned infected or exposed individuals. Design: - All eligible persons will have an initial screening evaluation to determine the circumstances of possible infectious exposure (e.g., where, when, and how exposed), current medical condition and medical care given, and any aspects of medical history that might be relevant to the exposure. - Participants may be seen in an outpatient clinic or in the Special Clinical Studies Unit (SCSU) at the National Institutes of Health (NIH). The NIH SCSU is a hospital ward specially designed to minimize the risk of spreading infection to others. - Upon admission, participants will provide blood and urine samples, have an electrocardiogram to measure heart activity, and have specific tests or procedures associated with the particular infectious agent. - Participants who develop illnesses will be treated with the standard of care for known diseases or with experimental measures, depending on the nature of the illness. Separate consent may be required for these treatments. - Participants will remain on this study for at least 1 year following the period of active evaluation and treatment. Participants may be asked to come to the NIH outpatient clinic on a periodic basis for medical evaluations and blood tests, and may be asked to keep a diary card to record any unusual signs or symptoms of possible infection.
The APR began as the 'Zidovudine in pregnancy Registry' in January 1989 and became the 'Antiretroviral Pregnancy Registry' in January, 1993. The purpose of the APR is to detect any major teratogenic effects involving any of the Registry drugs when administered to pregnant HIV positive women. The Registry is intended to provide an early signal of teratogenicity associated with prenatal use of the antiretroviral drugs. The Registry collects data on prenatal exposures to antiretroviral drugs, potential confounding factors (such as maternal age, disease status during pregnancy), and information about the outcome of the pregnancy. The Registry is managed by INC Research. The scientific conduct and analysis of the Registry data are overseen by an independent Advisory Committee consisting of members from the Centers for Disease Control and Prevention (CDC), Food and Drug Administration (FDA), the National Institutes of Health (NIH), and the academic sector. Registry data are obtained from participating providers who encompass physicians in private practice as well as hospitals and community clinics. The registry is co-sponsored and co-funded by 26 pharmaceutical companies that manufacture drugs used in ART. For an updated version of the registry, please see NCT00404989.
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.
This is a protocol designed to randomize subjects with acute HIV infection to receive standard HAART or mega-HAART for subject who are enrolled in SEARCH 010 study (protocol title: Establish and characterize an acute HIV infection cohort in a Thai high risk population. To describe the impact of standard HAART versus mega-HAART initiated during the acute HIV infection period on immunological and virological outcomes.