Clinical Trials About "Association sickle cell trait with atrial fibrillation REGARDS" RSS

18:01 EST 20th February 2020 | BioPortfolio

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Showing "Association sickle cell trait with atrial fibrillation REGARDS" Clinical Trials 1–25 of 19,000+

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Sickle Cell Trait and Exercise, Effect of Hot Environment

The heterozygous form of sickle cell disease is clinically asymptomatic. Nevertheless, it was observed that, the sickle cell trait is associated with serious medical complications especially during intense physical efforts. Moreover, the exposure to a hot environment (tropical climate) is suspected to be a determining factor in the occurrence of these medical complications. However, the relationship between sickle cell trait and death during effort is not well establishe...

Sickle Cell Trait and the Risk of Venous Thromboembolism

The purpose of this trial is to investigate D-Dimer levels, a surrogate marker of venous thromboembolism, in pregnant/postpartum white women as compared to pregnant/postpartum black women, and pregnant/postpartum women with sickle cell trait. The investigators will determine whether increased D-Dimer levels are reflected in a greater incidence of thrombosis in the postpartum patient, as well as the prevalence of symptomatic venous thrombosis in black patients as compared to pre...

A Program to Increase Sickle Cell Trait Knowledge Among Parent of Infants Identified in Newborn Screening

This is a study for parents of infants with Sickle Cell Trait (SCT) identified by newborn screening who are referred and present for in person SCT education at the Institution. The study will determine the feasibility of implementing a SCT education program (SCTaware) that is appropriate for all parents, including those with low base knowledge and low health literacy and then test if results in high and sustained SCT knowledge.

Diabetic Retinopathy and Sickle Trait

To more clearly ascertain the relationship between ocular manifestations of sickle cell disease and diabetes, specifically; whether the presence of sickle cell trait exacerbates the disease progression of diabetic retinopathy.

Effect of Plasmodium Falciparum Exposure and Sickle Cell Trait on Infection Rates and Kinetics After IV Administration of PfSPZ Challenge

The study is designed to establish infectivity of Plasmodium falciparum sporozoites (PfSPZ) via intravenous (IV) administration in three groups with different malaria immunity-status: 1. Adults with a history of lifelong malaria exposure without sickle cell trait 2. Adults with a history of lifelong malaria exposure with sickle cell trait 3. Adults without previous malaria episodes without sickle cell trait Initially a dose of 3,200 PfSPZ will be given and the time un...

Transfusion in Sickle Cell Disease: Screening of Sickle Cell Disease Trait in Blood Donors

Bearers of the sickle cell allele (S) are currently eligible for blood donations in Belgium. As blood donors are not tested for this allele, their heterozygous status is unknown. However, guidelines recommend to transfuse sickle cell patients with blood that is negative for the 'S' hemoglobin. To the investigator's knowledge, no study has been conducted to evaluate the impact of transfusion with blood originating from heterozygous donors on the transfusion performance and the i...

Collection and Storage of Umbilical Cord Stem Cells for Treatment of Sickle Cell Disease

This study will determine the best ways to collect, process and store umbilical cord blood from babies with sickle cell disease, sickle cell trait and unaffected babies. Sickle cell disease is an abnormality of the hemoglobin in red blood cells that causes the cells to change shape and clump together, preventing their normal flow in the bloodstream. This impairs blood flow to various organs, and the resulting oxygen deprivation causes organ damage. Cord blood is rich i...

Spectralis HRA+OCT Imaging of the Retina With Autofluorescence in Sickle Cell Disease

To determine the retinal and choroidal thickness in patients with sickle cell disease compared to age, race matched population without sickle cell disease to allow a better understanding of the clinical manifestations of sickle cell retinopathy. The purpose of this research study is to evaluate the relationship between sickle cell disease and the eye. The research study is recruiting African American population with or without Sickle Cell Disease. The investigator in charge of ...

Secondary Pulmonary Hypertension in Adults With Sickle Cell Anemia

The purpose of this study is to determine how often people with sickle cell anemia develop pulmonary hypertension-a serious disease in which blood pressure in the artery to the lungs is elevated. Men and women 18 years of age and older with sickle cell anemia may be eligible for this study. Participants will undergo an evaluation at Howard University's Comprehensive Sickle Cell Center in Washington, D.C. or at the National Institutes of Health in Bethesda, Maryland. It...

Effect of Exercise on Biomarkers in SCT

This study measures the effect of exercise on a variety of biomarkers in blood and urine selected to evaluate the physiological pathways of hemolysis, myolysis, thrombosis, inflammation, and renal function in subjects with sickle cell trait. These pathways have been shown to be associated with adverse events in athletes and warfighters with SCT upon protracted, repeated, strenuous exertion. Changes in biomarkers post-exercise compared to pre-exercise (and compared to healthy co...

Dose-Escalation Study of SCD-101 in Sickle Cell Disease

The purpose of this study is to determine the safety and clinical effects of SCD-101 when given to adults with sickle cell disease. SCD-101 inhibits sickling of red blood cells containing Hb S (sickle hemoglobin) under low oxygen conditions, the underlying cause of sickle cell disease. SCD-101 may inhibit red blood cell sickling in patients with sickle cell disease and reduce symptoms and slow disease progression. This study will evaluate the safety and antisickling activity o...

Evaluation of HemoTypeSC as a Novel Rapid Test for Point-of-Care Screening for Sickle-Cell Disease, Hemoglobin C Disease, and Carrier Status in Low-Resource Settings

Sickle cell disease is a life-threatening genetic disorder that can be effectively treated following early diagnosis via newborn screening. However, sickle cell disease is most prevalent in low-resource regions of the world, where newborn screening is rare due to the cost and logistical burden of laboratory-based methods. In many such regions, >80% of affected children die, undiagnosed, before the age of five years. A convenient and inexpensive point-of-care test for sickle cel...

Cerebrovascular Involvement in Sickle Cell Disease - Comprehensive Sickle Cell Center

To continue studies on the two major neurological complications of sickle cell disease (SCD): namely, stroke and chronic encephalopathy.


A Study of IMR-687 in Adult Patients With Sickle Cell Anaemia (Homozygous HbSS or Sickle-β0 Thalassemia)

A Phase 2a randomized, placebo-controlled, multicenter study of orally administered IMR-687 in adults with Sickle Cell Anaemia (SCA).

Blood Sampling for Research Related to Sickle Cell Disease

This study will collect representative blood samples from healthy children and adults and from children and adults who have unique red blood cell features that are related to sickle cell disease. Sickle cell disease is a blood disease that limits the ability of red blood cells to carry oxygen throughout the body. The purpose of the study is to collect a variety of blood samples that may then be used to investigate advances and potential new drug treatments for sickle cell disea...

Multi-center Study of SC411 for Sickle Cell Disease

The purpose of this study is to determine whether treatment of sickle cell patients with docosahexaenoic omega-3 acid (DHA) is effective in prevention of acute sickle cell crisis.

Comparison of Effectiveness of Ranolazine Plus Metoprolol Combination vs. FlecainidE pluS Metoprolol Combination in ATrial Fibrillation Recurrences FOllowing PhaRmacological or Electrical CardioverSion of AtRial Fibrillation

Atrial fibrillation (AF) is the most common arrhythmia in clinical practice with a prevalence reaching 5% in patients older than 65 years and an incidence that increases progressively with age.1 According to the most recent guidelines, class Ic anti-arrhythmic drugs are considered the first line treatment in patients without significant structural heart disease. Flecainide is effective in preventing AF recurrences in 31-61% of cases according to different studies.2-5 A recent s...

Prevention of Cerebral Infarction in Sickle Cell Anemia - Comprehensive Sickle Cell Center

To conduct a prospective study aimed at the early detection and treatment of cerebral vascular disease prior to irreversible brain injury in young children with sickle cell anemia (SCA).

Establishing a Database of People With Sickle Cell Disease (Comprehensive Sickle Cell Centers Collaborative Data Project [C-Data])

Sickle cell disease (SCD), also known as sickle cell anemia, is an inherited blood disease that can cause intense pain episodes. The purpose of this study is to gather medical information from children and adults with SCD and establish a database so that researchers can contact people to participate in future SCD research studies.

D-dimer In Patients With atRial Fibrillation rEceiving antiCoagulation Therapy

This is a sigle-center, prospective study to evaluate the role of D-Dimer testing in patients with atrial fibrillation receiving Dabigatran or warfarin anticoagulation therapy.

A Study of Oral L-citrulline in Sickle Cell Disease

Sickle cell disease is a genetic red blood cell disorder that can result in blocking of the small blood vessels from sickle shaped red blood cells. This causes pain, the main feature of sickle cell disease. Also, low amounts of nitric oxide can occur in sickle cell disease, a substance important for widening the blood vessel wall and therefore preventing blockage of the small blood vessels. Citrulline is a drug that is known to increase nitric oxide. This is a phase I study of...

Prevalence Of Microalbuminuria Among Children Suffering From Sickle Cell Nephropathy and Sickle Cell/Beta-Thalassemia

Sickle cell nephropathy is a known complication of sickle cell anemia (SCA) manifested by increase in glomerular filtration rate (glomerular hyperfiltration) and results in proteinuria and chronic renal failure. Our goal is to examine the prevalence of proteinuria and microalbuminuria as an early predictive factor of glomerular injury, among young people who suffer from SCA as well as those who suffer from combined sickle cell/beta-thalassemia.

Clinical and Laboratory Characteristics of Sickle Cell Anemia Patients Admitted With Fever

This study will summarized the clinical and laboratory data and the outcome of all the patients suffering from Sickle Cell Anemia (Including Sickle cell thalassemia) admitted to the pediatric ward.

Establishing a Repository of Blood and DNA Samples From People With Sickle Cell Disease (Comprehensive Sickle Cell Centers Collaborative Genotype-Phenotype Database and Sample Repository)

Sickle cell disease (SCD), also known as sickle cell anemia, is an inherited blood disease that can cause intense pain episodes. The purpose of this study is to collect, test, and archive blood and DNA samples from children and adults with SCD to study the role that genes play in SCD. Blood and DNA samples will be stored for use in future SCD studies.

Nephropathy in Patients With Sickle Cell Disease

There are some diseases that give rise to diverse renal manifestations as does sickle cell disease

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