View clinical trials related to Sickle Cell Disease.
Filter by:The aim of this study is to evaluate determinants of cerebral oxygenation and perfusion at the microcirculatory level in children with sickle cell anemia (SCA) using combined novel investigational tools: Arterial Spin Labeling (ASL) perfusion MR (Magnetic Resonnance) imaging, brain Near Infra-Red Spectroscopy (NIRS) and red blood cell (RBC) rheological properties.
Quantitative and prognostic evaluation of dense red blood cells in sickle cell children: preliminary single center study from the Creteil pediatric cohort.
The aim of this single-center observational study was to evaluate quality of life, clinical effectiveness, and satisfaction in pediatric and young adult patients with sickle cell disease receiving hydroxyurea.
To assess the tolerability of the costimulation blocking agent abatacept (CTLA4-Ig) when added to the standard graft versus host disease (GVHD) prophylaxis regimen of a calcineurin inhibitor and methotrexate in patients receiving early alemtuzumab followed by fludarabine, thiotepa, melphalan, and alemtuzumab for conditioning.
The investigators are conducting a Phase II prospective and placebo controlled study of a topical cream containing sodium nitrite compared to the current standard of care. Sodium nitrite is a local donor of nitric oxide, which is known to improve blood flow and decrease bacterial load in the ulcer bed. The primary objectives are to evaluate the safety of topical sodium nitrite cream treatment in patients with sickle cell disease and chronic leg ulcers and to determine its effectiveness in accelerating the healing process and decreasing the pain associated with ulceration. Potential benefit will be a durable resolution or improvement of the leg ulcer and its associated pain. Possible side effects include decreased blood pressure and methemoglobinemia, secondary to sodium nitrite absorption through the ulcerated skin. Funding source FDA OOPD.
The objective of this study is to determine the feasibility and acceptability of SCThrive, a an innovative, technology-enhanced, group self-management intervention that uses a mixed in-person and online format and supported by a tailored mHealth tool, iManage. The study will also evaluate the initial efficacy of SCThrive for increasing behavioral activation (BA) in adolescents with Sickle Cell Disease (SCD) ages 13 to 21. The investigators hypothesize that participants in the SCThrive group will show greater BA (primary outcome) at post-treatment than the attention control group, and that participants in the SCThrive group will continue to show significantly greater BA at the six week follow-up compared to the attention control group. Investigators will also explore whether SCThrive is associated with greater improvements in self-management behaviors and quality of life (secondary outcome) compared to attention control at the six-week follow-up assessment.
This study consists of four parts, Parts A, B, C, and D. - Part A is a single dose pharmacokinetic (PK) study in pediatric participants with Sickle Cell Disease ages 6 to 17 years. - Part B is a multiple dose, safety, exploratory, efficacy, and PK study in adolescent participants with Sickle Cell Disease ages 12 to 17 years. - Part C is a multiple dose, safety, tolerability, and PK study, which includes the assessment of hematological effects and the effect on TCD flow velocity of voxelotor in pediatric participants with Sickle Cell Disease ages 4 to 17 years. - Part D is a multiple dose, safety, tolerability, and PK study, which examines the hematological effects of voxelotor in pediatric participants with Sickle Cell Disease ages 6 months to < 4 years.
Sickle cell disease (SCD) is an inherited disorder characterized by recurrent painful crises with ischemia resulting from vascular occlusion. Adults with SCD have increased arterial stiffness and reduced flow-mediated dilation (FMD), due to impaired release of substances such as nitric oxide. The present study assess the vascular properties of carotid and brachial arteries in children with SCD compared with a control group without cardiovascular risk factors.
'Sickle-shaped' anemia was first clinically described in the US in 1910, and the mutated heritable sickle hemoglobin molecule was identified in 1949. The pathophysiology of SCD is a consequence of abnormal polymerization of sickle hemoglobin (HbS) and its effects on red cell membrane properties, shape, and density, and subsequent critical changes in inflammatory cell and endothelial cell function. Our goal is to understand the impact of CMA abnormalities in SCD, by interrogating a number of recognized interactions in a range of clinical phenotypes. To date, correlative studies in SCD, by us and others, have range between clinical reports, based on tests, interventions, and chart review of individuals or groups of individuals and, at the other extreme, identification of functional gene polymorphisms based on population studies. The investigators wish to augment these studies through a systematic examination of cellular membrane properties and activation status. Of hematologic disorders, SCD may be unusually susceptible to such an examination.
The primary aim of this study is to evaluate MRI-based cerebrovascular reserve (CVR) measurements in adult patients with Sickle Cell Disease (SCD). The primary objective is to assess whether there is a correlation between CVR and silent cerebral infarcts (SCIs).