Found 64,778 clinical trials
Genotype -Phenotype Correlation of PKLR Variants With Pyruvate Kinase, 2,3-Diphosphglycerate and Adenosine Triphosphate Activities in Red Blood Cells of People With Sickle Cell Disease
Background Some people with the same disorder on a genetic level have more complications than others. Researchers want to look for a link between the PKLR gene and sickle cell disease (SCD) symptoms. The PKLR gene helps create a protein, called pyruvate kinase that is essential in normal functioning of …
Natural History Study of Clinical and Biological Factors Determining Outcomes in Chronic Graft-Versus-Host Disease
Background Chronic graft-versus-host disease (cGVHD) is a multi-organ alloimmune and autoimmune disorder that occurs following allogeneic hematopoietic stem cell transplantation (alloHSCT). It is characterized by immune dysregulation, immunodeficiency, impaired organ function, and decreased survival. Each year about 8000 patients receive allogeneic hematopoietic stem cell transplant (alloHSCT) in North America and …
Genetic and Functional Analysis of Aplasia Cutis Congenital (ACC)
The goal of this research study is to identify genes and regulatory elements on chromosomes that cause ACC. The investigators also study tissue samples from patients to learn about the processes that lead to this disorder.
Thinking and Memory Problems in People With HIV
Background People with human immunodeficiency virus (HIV) can sometimes develop thinking and memory problems. These problems can vary widely, from few symptoms to severe problems with memory and concentration. It initially was thought that good HIV treatment could prevent almost all HIV-related memory problems. However, even people with low HIV …
Placental Passage and Disposition of Drugs: A Physiology-based Approach
The investigators aim to integrate the outcomes in physiology-based pharmacokinetic (PBPK) models to put the generated data into context with medical conditions that require maternal or fetal drug therapy (e.g. HIV). These models will be validated with available 'real-life' maternal and fetal PK data, such as data from the PANNA …
Development of IVF/ICSI Children Born From Different Endometrial Preparation Protocols
The efficacy and safety of endometrial preparation regimens remain controversial. In the most recent meta-analysis, using natural and modified natural cycle protocol to prepare the endometrium in frozen embryo transfer resulted in higher live birth rates. In addition, the natural cycle reduces the risk of gestational hypertension, postpartum haemorrhage, and …
Ultrasound Evaluation of the Myometrium Using the MUSA Terminology Comparison With Histology
The main objective is to evaluate the diagnostic accuracy of the MUSA terms and definitions, as defined in the paper by Van den Bosch T, Dueholm M, ea. in 2015, to differentiate between different types of myometrial lesions of more than 1 cm. The primary aim is the diagnostic accuracy …
An Observational Study on the Identification of Prescription Patterns of STAFEN Cap
An observational study on the identification of prescription patterns of STAFEN Cap., changes in blood lipid concentration, and statin-related muscle symptoms in Korean patients with mixed dyslipidemia
Proton Radiation Therapy Registry
The Johns Hopkins Proton Therapy center is establishing a registry to capture the full 3D radiation dosimetry delivered to the patient, baseline clinical data, and disease, toxicity and quality of life outcomes. The goal is to have all patients treated at the proton center to be included in the registry …
Study of Placental Function in Healthy and Pathological Pregnancies
The purpose of this study is to establish a tissue and data repository consisting of samples of human placentas, umbilical cord blood, and maternal blood, collected at the time of delivery. Specimens will be used in cellular, molecular, and functional studies to learn more about changes in placental structure and …
