View clinical trials related to Anemia, Sickle Cell.
Filter by:The purpose of this Phase 1/2 study is to determine the feasibility and safety of stem cell collection and gamma-globin gene transfer, and success of gene correction in subjects with sickle cell disease
This is a study to collect the outcomes of stem cell transplantation for patients with hematologic diseases other than cancer.
In patients with SCD, the use of low dose anticoagulation as an outpatient may lead to a significant decrease in morbidity and as a result, decrease healthcare utilization and costs. This study attempts to critically avoid admissions by reducing daily pain scores and pain crisis as an outpatient by use of a novel oral anticoagulant.
The investigators hypothesize that increasing plasma nitrite using dietary nitrate will improve platelet function and red cell deformability and decrease MCHC in patients with sickle cell disease. The investigators will test this hypothesis through administration of daily intake of beetroot juice (Unbeetable - Performance Drink) to patients with sickle cell disease for 28 days. The investigators will evaluate the safety of daily beet root juice intake in patients with sickle cell disease. In addition, the investigators will measure MCHC, red cell deformability, and platelet function (activation and aggregation) in response to daily intake of beet root juice in this patient population.
Background: - People with sickle cell disease and other blood disorders sometimes get chronic leg ulcers. These are wounds that develop on the skin and don t go away. Current treatments do not work very well, so researchers want to learn more about why the ulcers happen. They want to find out which bacteria may cause it, and if external factors play a role. Objective: - To study social and environmental factors of sickle cell disease and the causes of sickle cell disease leg ulcers. Eligibility: - People age 18 and older who have sickle cell disease or another red cell disorder, with or without an active leg ulcer. Design: - Participants will have a medical history and clinical evaluation. They will also have blood drawn. - Participants will complete questionnaires about their life, health, environment, stress, and other topics. - Participants may provide a small sample of hair. - Participants will be asked to collect a small amount of saliva. - Participants with leg ulcers will have their skin microbiome sampled. The microbiome is all of the microbes (bacteria and and/or fungi) and their genes in and on the body. Researchers will use swabs to collect skin samples. Photographs will be taken of the skin sample area. - Some participants without leg ulcers also will have their skin microbiome sampled. - Some participants who have their skin microbiome sampled will return for a second visit. At this visit, their microbiome will be resampled. It will take place more than 30 days after the first visit.
This is a Phase 1/2, open label, safety, and efficacy study of the administration of LentiGlobin BB305 Drug Product to participants with either transfusion dependent beta-thalassemia (TDT) or sickle cell disease (SCD).
The vast majority of births with sickle cell disease (SCD) occur in Africa and 90% are thought to die before the age of five. Hydroxyurea (HU) is the only drug approved by the FDA for the treatment of sickle cell anemia. Although HU is used to treat small numbers of patients in Africa, cost, fear of toxicity, and lack of awareness and availability limit its use. The leukopenia that may be seen with HU raises the possibility of increased susceptibility to infection. Risk stratification - i.e., identification of patients most likely to benefit- could focus therapy and provide confidence that the risk:benefit ratio is favorable. Several clinical measures of future risk are well defined and findings on modifier genes in the US, primarily related to fetal hemoglobin (HbF), have further improved risk prediction. Whether the genetic variants predict severity in Africa is not known. The investigators have established a SCD cohort in Ibadan, Nigeria. In the first phase of this research the investigators will implement clinical risk examinations and assess the relationship between clinical characteristics (including levels of HbF) and known genetic markers. As a proxy for a birth cohort, the investigators will compare the frequency of the genetic markers in adult patients (i.e., "survivors") to children. In the second phase the investigators will randomize 40 high risk adult patients to fixed low dose HU or no HU treatment in a crossover design and monitor hematologic and physiologic parameters to document hematologic effects and safety. This work will lay the basis for a large-scale trial to document safety and efficacy.
Youth diagnosed with sickle cell disease (SCD) may have difficulty taking medication as prescribed (adherence). Hydroxyurea (HU) is one medication that youth may take to help manage SCD. Electronic adherence monitoring is widely considered the gold standard in objective adherence measurement. These monitors provide continuous, real-time records of medication adherence and reveal problematic behavior patterns, including underdosing, overdosing, delayed dosing, "drug holidays" (i.e. where individuals do not take medications for a specified interval of time), and "white coat" adherence (i.e., a pattern of drug adherence as a function of time where individuals display good adherence immediately before and after clinic attendance with worsening adherence in the period between). Overall, electronic adherence measures are considered valid, reliable, and accurate, with clear advantages over pharmacy refill records, physician estimates and self-report measures. Currently, only one electronic measure capable of monitoring medications in both pill and liquid form is being manufactured: WisePill and WiseBag. While data are limited regarding its validity and reliability, preliminary data support the use of Wise technology to measure adherence to medication. The current study will determine the Wise device's ability to feasibly measure adherence to liquid and solid form HU medication in a pediatric SCD population.
This is a non-randomized, open label, multi-site, single dose, Phase 1/2 study in approximately 50 adults and adolescents with severe SCD. The study will evaluate hematopoietic stem cell (HSC) transplantation (HSCT) using bb1111 (also known as LentiGlobin BB305 Drug Product for SCD).
Purpose: Assess whether intensive training with education and daily remote monitoring with provider involvement has a lasting positive impact on adherence to medication management. The study will seek to enroll 25 subjects with sickle cell disease or thalassemia, and less than 100% compliance for taking iron chelators in the previous three month prior to participation in the study. Subjects will be asked to monitor their daily iron chelator administration by taking a video recording of preparing it and ingesting at least one sip. Subjects will also use a medication log to record daily administration of medication, and meet with study staff monthly for educational activities. The data collected will be analyzed to describe patient adherence and comfort level with the process of daily recording of medication management. Mean percent adherence in the pre-study periods and each of the study periods will be analyzed and compared.