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Filter by:Background: NF1 is a genetic syndrome. Tumors appear early in life. Many people with NF1 develop PN. These tumors can become an aggressive cancer called MPNST. People with MPNST may benefit from treatment with a MEK inhibitor (MEKi). Researchers want to learn if there is an increased risk of MPNST formation from MEKi treatment in people with NF1. To do this, they will review data that has been collected in NIH NF1 studies. Objective: To describe the characteristics of people who have taken part in NF1 studies at NIH and to compare the risk of MPNST formation in those treated with MEKi or other PN-directed treatment. Eligibility: People with NF1 who were seen at NIH from Jan. 1, 1998, to Jan. 1, 2020. Design: Participants medical records will be reviewed. Participants who opted out of future use of their data will not be included. Demographic data, like sex, race, and date of birth, will be collected. Data about MEKi and non-MEKi treatments will be collected. Clinical data, such as surgery and treatment details, will be collected. The differences between all participants who were seen at NIH for any NF1 related study will be compared. Participants will be put into 4 groups: History of MEKi therapy Treatment with tumor directed therapy other than MEKi Treatment with both MEKi and non-MEKi tumor directed therapies No tumor directed medical therapy Participants with NF1 who were treated for PN with either a MEKi treatment or a non-MEKi treatment will also be compared. The study will last for 3 to 6 months.
A randomized, double-blind, placebo-controlled study to evaluate MET642 in NASH patients.
The purpose of this research is to determine if mind and body counseling and training improves quality of life in women undergoing treatment for chronic pelvic pain.
In patients with infectious pneumonitis, the FILMARRAY® Pneumonia Plus Panel technique (multiplex PCR) on a respiratory sample makes it possible to identify the responsible pathogen and its resistance to antibiotics in less than an hour and therefore to quickly adapt the anti- infectious. FILMARRAY® Pneumonia Plus has been validated on two types of specimens from adult intubated patients, tracheal aspirations and bronchoalveolar lavage. It has not been validated on protected distal samples which are nevertheless used in current practice. This project will study the diagnostic validity of this technique performed on this type of sample. If the validity is demonstrated, this will allow this technique to be used on the protected distal sample which is a reliable sample and used in the context of respiratory infections, in particular acquired under ventilation in children (bronchoalveolar lavage is less easy and little used in practice in children).
This study will evaluate the efficacy, safety of two dose levels of CBP-201 in patients with moderate to severe persistent asthma with Type 2 inflammation.
ST-segment elevation myocardial infarction (STEMI) is one of the most important causes of death and disability around the world. The main goal in the management of acute myocardial infarction (AMI) is early restoration of coronary artery flow in order to preserve viable myocardium. Primary percutaneous coronary intervention (PCI) has proven to be superior to other reperfusion strategies in terms of mortality reduction and preservation of left ventricular (LV) function. Despite improvements in the treatment of MI, 30% of patients show LV remodeling post-MI. Over time, remodeling adversely affects cardiac function and can lead to significant morbidity and mortality. Early risk stratification is essential to identify patients who will benefit from close follow-up and intense medical therapy. The most widely investigated functional left ventricular (LV) characteristic to predict patient outcome after STEMI is LV ejection fraction (LVEF). Several structural LV characteristics have also shown to be important predictors of cardiovascular adverse events and death, including LV end diastolic volume (LVEDV), end systolic volume (LVESV) and mass (LVM). Cardiovascular magnetic resonance (CMR) imaging is the current reference standard for assessing ventricular volumes and mass. Adverse remodeling results from an inability of the heart to maintain geometry post MI in the context of large infarcts and increased wall stresses. The compensatory hypertrophic response of the remote non-infarcted myocardium (end diastolic wall thickness (EDWT) and end systolic wall thickness (ESWT)) might also play an important role in the remodeling after myocardial infarction but this needs to be investigated. Infarct size -as a crucial endpoint for adverse remodeling- is influenced by several factors: - the size of the area at risk (AAR) (myocardium supplied by the culprit vessel); residual flow to the ischemic territory (e.g., collateral flow); myocardial metabolic demand; and the duration of coronary occlusion. Assessment of the size and distribution of the infarction area after revascularization therapy can facilitate prompt and appropriate clinical intervention. Biomarkers such as troponin and creatine kinase are mainly used for AMI identification but lack myocardial specificity and may overestimate the (IS). Left ventricle ejection fraction (LVEF) fails to detect minimal and early pathological changes. The myocardial damage following STEMI can be assessed accurately by delayed gadolinium enhancement imaging using CMR imaging. In the acute phase of a STEMI, the extracellular space is increased in the infarct region due to a combination of necrosis, hemorrhage, and edema. The extent of hyper enhancement in the acute phase has been related to the outcome in patients with STEMI. However, later on the necrotic tissue is replaced by fibrotic scar tissue also with increased extracellular space. This process leads to ongoing 'infarct shrinkage' after the first week until the infarction reaches its final size after ∼30 days. - - Measurement of hyper enhancement in the acute phase of an infarction might therefore overestimate the necrotic infarct size, whereas 'final extent of hyper enhancement' is more precisely related to the amount of necrotic tissue. In STEMI patients the prognostic importance and predictors of the final infarct size are not fully elucidated. Myocardial strain is a quantitative index based on measuring myocardial deformation during a cardiac cycle. Major tools for detecting changes in myocardial strain include CMR tagging, CMR feature tracking (FT-CMR) and speckle tracking echocardiography (STE). Previous studies have shown an advantage of strain in sensitively and accurately diagnosing and assessing IS compared to traditional functional indexes. However, the degree to which strain analysis can reflect the infarction areas quantified by CMR, adverse LV remodeling as well as the diagnostic accuracy of this analysis is still under dispute. In the past 3 years in particular, newly developed three-dimensional (3D) STE has overcome the inherent shortcomings of two-dimensional (2D) STE.
Clinical Study Objective: To evaluate the tolerability and safety after transplantation of LSCD101 in patients with intractable limbal stem cell deficiency Study Method: Subjects who finally meet the inclusion/exclusion criteria results of the subject eligibility evaluation will receive transplantation of the investigational product. Adverse drug reaction will be confirmed during 24 weeks after transplantation.
The objective of this study is to identify the minimum effective dosage of a mixture of two local anaesthetic drugs called 'levobupivacaine' and 'lignocaine with epinephrine" used to produce an effective ultrasound guided selective trunk block for surgical anaesthesia of the upper limb.
Chronic thromboembolic pulmonary hypertension is an occlusive disease in pulmonary artery.Matrix metalloproteinase enzymes play a substantial role of extracellular matrix remodeling. The clot formed in chronic thromboembolic pulmonary hypertension does not melt and turns into a fibrous state, it occludes the pulmonary artery.In this study, investigators aimed to investigate the role of matrix metalloproteinase enzymes in pulmonary arterial wall remodeling in patients with chronic thromboembolic pulmonary hypertension
This is a pilot trial of a single loading dose of vigabatrin in post-anoxic status epilepticus.