View clinical trials related to Anemia, Sickle Cell.
Filter by:An Open-label Extension Study of GBT021601 in Participants with Sickle Cell Disease
Background: Sickle cell disease is the most common monogenic disease in the world caused by a mutation in the β-globin gene which creates abnormal hemoglobin called HbS. This polymer deforms the erythrocyte, making it more fragile and less flexible, thus leading to the occlusion of small blood vessels. This obstruction is the cause of painful vaso-occlusive crises and ischemia-reperfusion phenomena. Patients with sickle cell disease undergo major acute and chronic pain responsible for a significant deterioration in their quality of life and a significant consumption of analgesics, often daily, sometimes with the development of addictive behavior. Improved analgesic management was associated with improved disease prognosis. Several studies have shown the effectiveness of the osteopathic approach in the management of chronic pain. Our hypothesis is that the association with the standard treatment of osteopathy sessions could improve but also prevent the chronic pain frequent in patients with sickle cell disease. Objectives: Our main objective is to study the effectiveness of an osteopathic treatment in adult sickle cell patients with chronic pain on the reduction of the consumption of level I and II analgesics at 3 months (D90 +/- 15 days). Methods/Experimental design: This is a single-blind prospective randomized controlled monocentric study. The study population will be composed of 37 sickle cell patients aged over 18 years. The patients included will be allocated into two groups: one group will receive the osteopathic treatment and the 2nd group will receive the "placebo" treatment. Analgesic consumption will be assessed by weekly self- questionnaire. The evaluation of the pain will be carried out by the visual analogue scale (VAS). The degree of stress will be measured using the Perceived Stress Scale (PSS). Patients will receive an osteopathic treatment or a "placebo" treatment, one session every 4 weeks for 12 weeks with a total of 3 sessions per patient. The duration of each session is 45 minutes. Pain and stress assessments will be done before each session. A final evaluation will be carried out 3 months after the end of the osteopathic or "placebo" treatment. Data analysis will be performed using SPSS version 17.0 software. The significance threshold will be set at 0.05. This is the first protocol that aims to evaluate, with scientific rigor, the impact of the osteopathic approach in the management of pain in patients with sickle cell disease.
Hematopoietic stem cell (HSC)-based gene therapies now offer curative potential for patients with sickle cell disease (SCD), with decreased toxicity compared to allogeneic hematopoietic cell transplantation. However, effective HSC-based gene therapy depends on collecting sufficient HSCs to generate the therapeutic product, and currently available mobilization regimens carry unacceptable risk for patients with SCD or do not reliably yield optimal numbers of HSCs for gene therapy. The investigators hypothesize that HSC mobilization with motixafortide (CXCR4i) alone and the combination of motixafortide plus natalizumab (VLA-4i) will be safe and tolerable in SCD patients. In addition, the investigators hypothesize that combined CXCR4 and VLA-4 blockade with motixafortide plus natalizumab will result in a rapid, robust, and synergistic increase in HSC mobilization to peripheral blood (PB) in patients with SCD, when compared to motixafortide alone.
Sickle cell disease (SCD) is a common, inherited blood disorder that primarily affects people of African Ancestry. It has a lot of complications including neurological complications. The neurological complications of SCD are particularly devastating and lead to cognitive decline even in the absence of overt brain injury. In such cases, it is thought that inflammation in the brain maybe partly responsible for the cognitive decline. The main reasons for this research study are to see 1) how safe and 2) how well minocycline works to try to stop/reverse cognitive decline in people with SCD. People with SCD are at risk for changes in their brain over time that can cause problems with learning, memory, and attention. Part of the reason for this is inflammation within the brain. Minocycline may be able to stop these brain changes by stopping this brain inflammation. Minocycline is a second-generation tetracycline antibiotic that has been shown to both inhibit neuroinflammation and improve cognitive function in a variety of neurodegenerative and psychiatric disorders but has not yet been studied in SCD. We are proposing here, a pilot double-blinded, randomized controlled trial to examine the tolerability and early efficacy of minocycline in adults with SCD at two dosing regimens (200 mg and 300 mg daily) versus placebo over one year. Participants will undergo a neuropsychological exam using the NIH Toolbox Cognition Battery at both study enrollment and exit (after one year) to assess for changes/stability of cognition. Participants will receive monthly phone calls/text messages to assess for adverse events and will be seen every three months for pill counts and routine laboratory monitoring. The primary outcome will be a comparison of adverse events across the two dosing strategies versus placebo. Early evidence for cognitive benefit will also be assessed from the results of the NIH Toolbox.
Sickle cell disease (SCD) is an inherited disorder of the blood. SCD can injure the smallest blood vessels, which can cause pain and damage organs all over the body. Some treatments are available, but researchers need better ways to monitor the effects of these treatments. An imaging technique called near infrared spectroscopy (NIRS) may be helpful. Objective: To test NIRS as a tool for measuring oxygen levels, blood flow, and the makeup of skin and muscle in patients with SCD. Eligibility: People aged 18 years and older with SCD. Healthy volunteers are also needed as a comparison for the changes in SCD patients. Design: Participants will be screened. They will have a physical exam, and 1 teaspoon of blood will be drawn. Participants will have NIRS testing on their second visit. Probes will be placed on their skin. A blood pressure cuff will be placed on their arm. The cuff will be filled with air for up to 5 minutes and then released. Participants may be asked to breathe at a certain rate or hold their breath during these measurements. At this visit, participants will also have an ultrasound exam to get images of their heart. They will be monitored while they walk for 6 minutes. They will have 1 tablespoon of blood drawn. Their height, weight, and vital signs will be measured. Participants may be asked to return for up to 4 additional visits for NIRS testing within 120 days, but this is optional. The visits must be at least 3 days apart. Each visit will last up to an hour....
There is limited information on what causes injury to the heart in individuals with Sickle Cell Disease (SCD). Researchers in this study want to see if decreased blood flow to the heart during stress could be causing the heart damage seen in SCD patients. They also want to test people who don't have SCD to see if their hearts react the same way under stress. Primary Objective - To estimate the coronary flow reserve (CFR) (also referred to as myocardial perfusion reserve), as measured by PET stress-rest myocardial perfusion imaging, in SCD patients with and without diastolic dysfunction, and healthy controls. Secondary Objectives - To investigate the relationship between decreased CFR (quantified with PET stress- rest myocardial perfusion imaging) and presence of abnormal diastolic parameters
Patients with sickle cell disease suffer from acute and chronic pain that diminishes their quality of life. The purpose of this study is to assess the feasibility and acceptability of mindfulness meditation, breathing exercises, and gentle yoga therapy as supportive measures for the management of acute vaso-occlusive pain crises in the inpatient setting.
The primary objective of this study is to assess the safety and tolerability of ALXN1820 SC (subcutaneous) in participants with SCD (Sickle Cell Disease).
Sickle cell disease (SCD) is an autosomal recessive red blood cell blood disorder. One especially vital organ affected in SCD is the brain. Individuals with SCD have an increased risk of both overt cerebral infarctions and silent infarctions. The latter are brain lesions without apparent neurological sequelae. Since cortical neurons in the brain lack the ability to regenerate, tissue damage accumulates throughout the already shortened lifespan of individuals with SCD, resulting in far-reaching consequences such as significant cognitive impairment. Currently, only hematological stem cell transplantation can halt the multiorgan tissue damage. However, the criteria to determine the timing of curative therapy do not center the brain, despite that subtle anomalies of this critical organ can have long-lasting consequences. Since it is not yet known whether brain tissue damage precedes, parallels, or lags behind non-brain tissue damage, it is critical to map these effects in youth with SCD. While importantly comparing images with a healthy reference population. Understanding how the brain is affected is critical for clinical decision making, such as timing of potentially curative interventions but also, to prevent long term irreversible brain damage in youth with SCD. In this study, a cohort of 84 SCD patients between the ages of 6 and 18 at baseline, will undergo MR imaging, neurological examination, neuropsychological assessment and blood sampling three times in total, with intervals of two years; results will be innovatively compared with children included in the Generation R population study (±8000 MRIs children and (young)adults) 6-20 years of age). Our hypothesis, based on the inability of the brain to generate new cortical neurons following cell death, is that brain function is impaired earlier than other organ systems and that there is an age-dependent limit in the brain's ability to remodel itself based on neuroplasticity.
This study is a Phase 3, multicenter, randomized, placebo-controlled study to evaluate the efficacy of voxelotor and standard of care for the treatment of leg ulcers in participants with sickle cell disease. The study is divided into a 5 study periods: Screening, Run-in, Randomized Treatment, Open-label Treatment, and Follow-up/End of Study (EOS). The study will be conducted in approximately 80 eligible participants at approximately 20 global clinical trial sites.