There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
This is a pilot study to examine the prevalence of metabolic risk factors (impaired insulin release and impaired insulin sensitivity) for type 2 diabetes mellitus in children and adults from a population that is at high risk for this disease. We hypothesize that at least one of these pre-diabetic traits will be evident in a large proportion of relatives of known type 2 diabetic children as compared to a control group of subjects without a family history of type 2 diabetes. By isolating these traits, it will be possible to determine the relative contributions of genes and environment to each trait and to identify those at risk for subsequent development of type 2 diabetes by virtue of having one trait. Ultimately, those individuals at risk, especially those with impaired insulin release, would hopefully benefit from intervention to prevent the weight gain that will 'unmask' their underlying pancreatic dysfunction and thus prevent or retard the development of type 2 diabetes.
This study will evaluate and treat people with SARS, a new type of pneumonia (lung infection) originating in China. SARS is caused by a new virus that is easily transmitted from person to person. This study will look at the course of the disease; determine how the virus affects the body and how the body fights the infection; and evaluate diagnostic tests to quickly identify the disease. People 18 years of age and older with probable or suspected SARS may be eligible for this study. Close contacts of patients with SARS, patients who recovered from SARS, and NIH health care workers involved in the care of patients will also be enrolled. Patients with SARS who require hospitalization will be admitted to the NIH Clinical Center. Because SARS spreads easily, hospitalized patients will be in a room by themselves and will not be allowed any visitors. They will not leave their room except for tests, such as x-rays. All participants will have a full medical examination, including a medical history, physical examination, and blood tests. In addition, the participants undergo various tests and procedures as follows: - Probable and suspected SARS patients may be hospitalized or may be seen as outpatients. They are provided the treatment judged best for their disease, usually according to expressed or published recommendations. The best treatment for SARS is not yet known, and there have been no studies evaluating therapies. Outpatients are seen three times a week for 2 weeks, once a week for 4 more weeks, and then at 6 months. Patients have mouth and throat swabs taken three times a week for the first 2 weeks, then once a week for 4 more weeks. Blood is drawn three times a week for the first 2 weeks, then once at weeks 3, 4, and 6. If virus is still detectable after 6 weeks, nose washings and throat swabs are repeated until no virus is detected for 3 weeks in a row. In addition, patients provide urine and stool samples, have a chest x-ray and electrocardiogram, and undergo bronchoscopy and bronchial lavage. For the bronchoscopy, a bronchoscope (pencil-thin flexible tube) is passed into the large airways of the lung, allowing the physician to examine the airways. Cells and secretions from the airways are rinsed from the lung with salt water. A brush the size of a pencil tip is passed through the bronchoscope to scrape cells lining the airways and pieces of tissue are collected for analysis. - Close contacts of patients are evaluated twice a week for 2 weeks, then once a week for 2 more weeks. Blood is drawn at the first visit and then at 1, 2, and 4 weeks. Mouth and throat swabs, nose washings, and sputum collections are done twice a week for 2 weeks, then once a week for 2 more weeks. Urine and stool samples are collected once a week for 4 weeks. If virus from the nose or throat is still detectable after 4 weeks, weekly nose washings and throat swabs continue until no virus is detected for 3 weeks in a row. Blood may also be drawn during the weekly visits. - Recovered SARS patients provide blood, urine, and stool samples and have a mouth and throat swab and nose aspiration to see if the SARS virus is present. For the nasal aspiration, salt water is put in the nose and then suctioned out. Usually, these tests are done only once. If virus is detected, however, the nose washing, throat swabs and blood tests are repeated once a week until no virus is detected for 3 weeks in a row. - Health care workers document their contact with patients, use of isolation procedures and equipment, and any unexpected events that occur during contact. They are evaluated for symptoms of infection and provide a blood sample once a month
RATIONALE: Drugs used in chemotherapy, such as soblidotin and gemcitabine, use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. PURPOSE: This phase I trial is studying the side effects and best dose of soblidotin and gemcitabine in treating patients with locally advanced or metastatic solid tumors.
The purpose of this study is to determine if the use of herbal products interferes with normal anticoagulation, leading to either excessive thinning of the blood and bleeding problems or inadequate thinning of the blood and clotting problems. Many patients who are on long term anticoagulation, or blood thinning, for a variety of medical problems, also take herbal products. It is not yet known whether use of herbal products interferes with this anticoagulation, and puts patients at risk for bleeding or clotting. This study will carefully monitor patients who are taking herbs and anticoagulants to determine if their laboratory tests show signs of being affected by the herbs. The study will ask all patients about their herbal product use, so all reported herbs will be included and monitored.
We will give intravenous fat molecules to help us understand how the fat that is released from peoples fat cells is used. This will be done when people are eating, not eating and walking.
There are several studies looking at how dietary fat is metabolized by humans. We give special meals and collect blood, breath, urine and fat samples to study how people burn and store dietary fat.
This study will attempt to stimulate the immune system in HIV infected adolescents and young adults so that it can better control the HIV infection. When anti-HIV drugs are stopped for a period of time, the virus "grows back." This may stimulate the immune system, which may then be more effective in controlling the virus.
People with multiple sclerosis (MS) suffer from cognitive and other brain problems. This study will examine the effectiveness of the drug donepezil and of sugar water for enhancing memory in individuals with MS. Donepezil (also known as Aricept) has been FDA approved for improving memory and learning in individuals with Alzheimer's disease.
Head impacts in sports can lead to brain injury even when the participant is wearing a helmet. The forces that contribute to brain injury from sports-related head impacts are not well understood. This study will test a new device to measure the speed of head impacts among football players.
The purpose of this research study is to obtain experience in the use of fondaparinux (Arixtra) as compared to heparin when administered to patients who undergo percutaneous coronary intervention (PCI). PCI is a mechanical procedure used to widen the narrowing in a coronary artery in patients with symptomatic coronary artery disease. Fondaparinux and heparin are drugs that inhibit blood clotting.