Sickle Cell Disease Clinical Trials

The purpose of this study is to find objective biomarkers of vaso-occlusion (blood vessel blockage) in people with SCD. Using information from earlier studies and work being done, researchers have developed a strategy to image VOC, using positron emission tomography (PET). The ability to see and measure VOC in SCD patients can help patient care, by showing when and how a VOC is occurring or going to occur. Studying this method will also help in future drug research, as it will allow researchers to deliver promising new medications that target hyper-adhesion and sickling in people with SCD. Read Less

Open-label extension study of voxelotor for participants with Sickle Cell Disease who have participated in voxelotor clinical trials. Read Less

Background: Sickle Cell Disease (SCD) causes blood cells form a crescent shape. It is caused by a genetic mutation in the hemoglobin gene. People with SCD are at increased risk for illnesses like stroke, chronic pain, and heart problems, as well as decreased overall health and well-being. Researchers want to learn more about how nutrition and diet can help relieve or reduce the symptoms of SCD. Objective: To understand how diet, dietary patterns and behaviors, nutrition, and other related factors in adults with SCD affect their overall health. Eligibility: Adults aged 18 and older with SCD. Design: Participants will be screened with a review of their medical records. They will take a pregnancy test if needed. Participants will have a physical exam and medical history. Their height, weight, and waist and hip circumference will be measured. They can complete this exam (1) via telehealth along with a visit to an outpatient laboratory center or (2) by going to the NIH Clinical Center. Participants will complete 2 interviews about their diet. They will talk about the foods they ate in the past 24 hours. They will also complete 1 interview about diet-related behaviors such as food shopping and cooking. They can complete the interviews in person, by phone, or by telehealth visit. Participants will complete surveys about their demographics (such as age and gender), SCD pain, mood, stress, diet, and nutrition. It may take about 1 hour to complete all of the surveys. Participants will give blood and urine samples. They will need to fast for at least 8 hours overnight before giving blood samples. Participation will last for about 2 weeks. Read Less

This prospective mixed-method interview study aims to qualitatively describe the beliefs, attitudes, and informational needs around gene therapy for rare pediatric diseases among patients and parents of children with a rare disease targeted for treatment using gene therapy techniques. Using learned insights, the team will develop an online platform providing educational content and patient decision aids for patients and their families. Read Less

The investigators will attempt to develop a more accurate equation to estimate eGFR in pediatric and adult sickle cell patients Read Less

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. Read Less

Background: Sickle cell disease (SCD) is a genetic disorder where red blood cells, that carry oxygen, are stiff and become stuck in small blood vessels. As a result, affected patients can experience severe pain and serious organ damage. SCD can be cured with a hematopoietic cell transplant (HCT), that is, when they receive blood stem cells from a family donor. But HCT can also have serious side effects, especially in people with organ damage. Researchers want to find ways to make HCT safer for everyone. Objective: To test a new combination of drugs (briquilimab, abatacept, and alemtuzumab), used along with radiation, in people undergoing HCT for SCD. Eligibility: People aged 16 and older with SCD. They must be eligible for HCT and have a family member who is a good donor match. Donors must be aged 4 and older. Design: Participants with SCD will be screened. They will have blood tests and tests of organs including their heart and lung function. Donors will have blood drawn. Participants with SCD will have a tube inserted into a blood vessel in their chest (intravenously). This line will remain in place up to 2 months; it will be used to draw blood and administer the donor cells and other medications. Briquilimab will be administered intravenously 1 time, along with other drugs used to prepare for HCT. Participants will receive abatacept 6 times, from just before they receive their donor cells until 6 months after. Participants will undergo radiation therapy and take other drugs that are standard for HCT. Most HCT recipients remain in the hospital for about 30 days after HCT. Follow-up visits will continue for 5 years.... Read Less

CADPT03A12001 is a prospective, multi-center study that is designed to follow all enrolled patients who have received treatment with OTQ923 for long-term safety and efficacy. Read Less

Background: Sickle cell disease (SCD) is an inherited disorder of the blood. SCD causes red blood cells (RBCs) to die early. This can lead to a shortage of healthy cells. SCD and other blood disorders can be managed with drugs or cured with a bone marrow transplant. Researchers want to know how long RBCs survive in people with SCD and other blood disorders before and after treatment compared to those who had a bone marrow transplant. Objective: To learn how long RBCs survive in the body in people with SCD and other blood disorders compared to those whose disease was cured with a bone marrow transplant. Eligibility: People aged 18 years or older with SCD or another inherited blood disorder. People whose SCD or blood disorder was cured with a bone marrow transplant are also needed. Design: Participants will be screened. They will have a physical exam with blood and urine tests. Participants will have about 7 tablespoons of blood drawn. In the lab, this blood will be mixed with a vitamin called biotin. Biotin sticks to the outside of RBCs. This process is called "biotin labeling of RBCs." The next day, the participant s own biotin-labeled RBCs will be returned to their bloodstream. Participants will return regularly to have smaller blood samples (about 2 teaspoons) drawn. These samples will be tested to detect the percentage of cells that have biotin labels. These visits may be every 2 weeks, 4 weeks, or some other interval. Participants will continue this schedule for up to 20 weeks or until biotin can no longer be detected.... Read Less

The purpose of this study to assess the feasibility, acceptability, and safety of a personalized exercise training program adapted from Gerofit to improve physical health and quality of life for adults with SCD Read Less

The purpose of this study is to evaluate the safety, tolerability, efficacy, pharmacokinetics and pharmacodynamics of osivelotor. Read Less

This is an open-label, single-arm, multicenter, Phase 1/2 study evaluating the safety and efficacy of the administration of autologous base edited CD34+ HSPCs (BEAM-101) in patients with severe SCD Read Less