View clinical trials related to Anemia, Sickle Cell.
Filter by:Brief Summary: * A short description of the clinical study, including a brief statement of the clinical study's hypothesis, written in language intended for the lay public. Limit: 5000 characters. Severe forms of sickle cell syndrome are characterized by the occurrence of repeated vaso-occlusive crises (CVO), early complications and a high morbidity and mortality in these patients. Intensified management is then required, with the introduction of hydroxyurea treatment and then, if it proves ineffective, a transfusion program or even a haematopoietic stem cell allograft. These latter treatments present significant risks of adverse effects for the patient (haemochromatosis, erythrocyte alloimmunisation for the transfusion program, risk of GVH, chemotherapy-related toxicity, MVO for the allograft). Hydroxyurea (HU) is the first treatment based on the specific pathophysiology of sickle cell disease. It is the first line of therapeutic intensification for adult patients and children (age ≥ 2 years) with major sickle cell disease. By mainly increasing the percentage of fetal haemoglobin (HbF), HU decreases the frequency of CVO, complications, hospitalizations and prolongs the life expectancy of patients. The initial dose of HU, recommended by the ANSM, is 15 mg/kg/d once daily. However, the optimal dose cannot be predicted at the start of treatment, which is why a dosage adjustment is essential. The usual dose is between 15 and 35 mg/kg per day. Typically, the dose is increased every 3 months until a mild myelosuppression tolerated by the patient is reached, indicating that the maximum tolerated dose (MTD) has been reached. When the dose of HU has reached the MTD, the ratio of clinical (reduced frequency of vaso-occlusive attacks) and biological (better % of HbF) benefits to risk (toxicity) is optimal for the patient. The disadvantages of this practice are that: - dose escalation can be long (9-12 months) - clinicians may be reluctant to escalate HU to MTD - patients are treated sub-optimally during the therapeutic adaptation period. Recent work has shown that it is beneficial for the patient to adjust the initial dose using a pharmacological therapeutic approach in addition to monitoring haematological tolerance. Thus, by customizing the dose of HU using an area under the curve (AUC) measurement at the initial intake of HU at a standardized dose (20 mg/kg/day), the MTD would be achieved in a faster time frame of 6-9 months. The primary objective of our trial is to identify the methodology that will most effectively decrease the time to reach the MTD (therapeutic target). The immediate benefit will be a reduction in CVO which is the major clinical problem and leads to a risk of complications in sickle cell disease.
This study is being done to see if the study drug, motixafortide, is safe in participants with sickle cell disease (SCD). Investigators also want to see if the drug will help the body increase the number of stem cells that can be collected for possible future transplant use. PRIMARY OBJECTIVE - To characterize the safety and tolerability of motixafortide in participants with SCD as determined by the incidence of adverse events (AEs). SECONDARY OBJECTIVES - To characterize the efficacy of a single dose (Part A) or two doses (Part B) of motixafortide for hematopoietic stem cell (HSC) mobilization and apheresis collection in participants with SCD as determined by the yield of CD34+ cells (CD34+ cells/kg). - To measure the mobilization effects of single-day (Part A) or daily dosing (Part B) dosing with motixafortide in the peripheral blood in participants with SCD as determined by peak peripheral blood CD34+ counts - To recommend a phase 2 dosing strategy based on safety, efficacy, and mobilization effects
A phase III, multi-center, randomized, placebo-controlled, double-blind study to assess efficacy and safety of crizanlizumab (5 mg/kg) versus placebo, with or without hydroxyurea/hydroxycarbamide therapy, in adolescent and adult Sickle Cell Disease patients with frequent vaso-occlusive crises.
The purpose of this study is to evaluate the effect of food on the amount of etavopivat in the bloodstream of healthy participants. Participants will take a single oral dose of etavopivat following a high-fat meal (i.e. fed) and on an empty stomach (i.e fasted) on two separate occasions.The study will last up to 50 days (including screening).
This study is being conducted to evaluate the safety and effect of starting daily use of low dose (100 mg) aspirin in pregnant women with sickle cell disease, who are being followed in two county hospitals in Angola, in the first trimester versus the second trimester of the gestational period.
This study is an open-label, non-randomized, single-dose Phase 1/2 trial involving around 85 adult and pediatric participants aged between 2 and 50 years with sickle cell disease (SCD). It aims to assess the effectiveness of hematopoietic stem cell transplantation (HSCT) using BAH243 for SCD.
The investigators are studying how to prevent malnutrition in children with sickle cell disease (SCD) in northern Nigeria. Community health workers will teach mothers about nutritious local foods that might help children grow better than the usual advice from doctors. The investigators will enroll 148 children with SCD aged 6 to 18 months old. The investigators will determine if their weight and diet improve and check for low vitamin A levels. This information will help us find better ways to improve growth for children with SCD.
Objective: to gain insight in the pathogenesis, to identify biomarkers to recognize patients at risk for proliferative SCR and to investigate its associations with clinical and laboratory characteristics. Endpoints: The investigators will determine the difference in the above named parameters between patients with and without PSCR Study design: This case control study will include adult sickle cell disease patients with the HbSS or HbSC genotype. For both genotypes, 20 patients without sickle cell retinopathy (SCR) and 20 patients with PSCR will be included, resulting in a total of 80 patients. Venous blood samples and retinal imaging scans will be collected for each included patient.
This research study wants to learn about what kind of exercise is best for kids with sickle cell disease. Participating children will have a small amount of blood drawn one time at the beginning of the study. Children will then complete some questionnaires that measure pain, physical function, and emotions (depression, anxiety) and complete some tests that measure physical fitness at the beginning and end of the study. Children will be randomized to either a home-based telehealth (1) walking or (2) strengthening exercise program that lasts for 8-weeks, 3-x week, for 45 minutes each session. Children's participation will last up to 10 weeks.
The goal of this observational study is to help us understand more about the best ways to help individuals living with Sickle Cell Disease (SCD) get the best care. The main question it aims to answer is: How to find individuals unaffiliated from SCD specialist care use three distinct pathways? Once unaffiliated individuals are found using the pathways, Investigators will employ linkage coordinators (trained staff) to engage these patients in care. Participants will be asked to fill out an assessment survey which will cover areas such as previous and current treatment, clinic and hospital experience, pain, and quality of life. Participants will also be given the option of participation in a 1-hour long interview how they feel about treatment for sickle cell disease including clinic experience, pain, and quality of life?