View clinical trials related to Anemia, Sickle Cell.
Filter by:This is a study to collect the outcomes of stem cell transplantation for patients with hematologic diseases other than cancer.
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.
Background: - Some sickle cell disease or beta-thalassemia can be cured with transplant. Researchers want to test a variation of transplant that uses low dose radiation and a combination of immunosuppressive drugs. They want to know if it helps a body to better accept donor stem cells. Objectives: - To see if low dose radiation (300 rads), oral cyclophosphamide, pentostatin, and sirolimus help a body to better accept donor stem cells. Eligibility: - People 4 and older with beta-thalassemia or sickle cell disease that can be cured with transplant, and their donors. Design: - Participants and donors will be screened with medical history, physical exam, blood test, tissue and blood typing, and bone marrow sampling. They will visit a social worker. - Donors: - may receive an intravenous (IV) tube in their groin vein. - will receive a drug injection daily for 5 or 6 days to move the blood stem cells from the bone marrow into general blood circulation. - will undergo apheresis: an IV is put into a vein in each arm. Blood is taken from one arm, a machine removes the white blood cells that contain blood stem cells, and the rest is returned through the other arm. - Participants: - may undergo red cell exchange procedure. - will remain in the hospital for about 30 days. - will receive a large IV line that can stay in their body from transplant through recovery. - will receive a dose of radiation, and transplant related drugs by mouth or IV. - will receive blood stem cells over 8 hours by IV. - will take neuropsychological tests and may complete questionnaires throughout the transplant process. - must stay near NIH for 4 months. They will visit the outpatient clinic weekly. - will have 5 follow-up visits for 3 years after transplant, then annually.
Despite the important work of previous sickle cell disease (SCD) cohort studies, there remain many understudied areas that require investigation. An important knowledge deficit is the slow but progressive process of chronic end-organ dysfunction. The majority of organ dysfunction becomes apparent in the young adult years, but comprehensive assessment of adults and understanding of predictors of adulthood organ dysfunction are insufficient. Similarly, the role of disease-modifying therapies, such as hydroxyurea, in preventing organ dysfunction later in life is not clear. Extended follow-up of patients through the transition into adulthood is imperative to understand the long-term implications of pediatric sickle cell care. This observational study will collect data in a systematic fashion at participants' regular clinic visits (in-person or remote) to answer the objectives described below. In addition to primary study objectives, SCCRIP participants will be eligible to participate in a sub-study, which will investigate genetically determined responses to Hydroxyurea (HU) via a pharmacokinetic study (PK). This one time study will involve blood collection at timed intervals proceeding a dose of HU. Defining the basis for this inter-individual variability will allow the identification of poor HU responders prior to initiation of therapy and the seeking of alternative treatments which seek to optimize disease treatment by accounting for individual variability in genes, environment, and lifestyle.
The main purpose of this study is to examine the outcome of a combined bone marrow and kidney transplant from a partially matched related (haploidentical or "haplo") donor. This is a pilot study, you are being asked to participate because you have a blood disorder and kidney disease. The aim of the combined transplant is to treat both your underlying blood disorder and kidney disease. We expect to have about 10 people participate in this study. Additionally, because the same person who is donating the kidney will also be donating the bone marrow, there may be a smaller chance of kidney rejection and less need for long-term use of anti-rejection drugs. Traditionally, very strong cancer treatment drugs (chemotherapy) and radiation are used to prepare a subject's body for bone marrow transplant. This is associated with a high risk for serious complications, even in subjects without kidney disease. This therapy can be toxic to the liver, lungs, mucous membranes, and intestines. Additionally, it is believed that standard therapy may be associated with a higher risk of a complication called graft versus host disease (GVHD) where the new donor cells attack the recipient's normal body. Recently, less intense chemotherapy and radiation regimens have been employed (these are called reduced intensity regimens) which cause less injury and GVHD to patients, and thus, have allowed older and less healthy patients to undergo bone marrow transplant. In this study, a reduced intensity regimen of chemotherapy and radiation will be used with the intent of producing fewer toxicities than standard therapy. Typical therapy following a standard kidney transplant includes multiple lifelong medications that aim to prevent the recipient's body from attacking or rejecting the donated kidney. These are called immunosuppressant drugs and they work by "quieting" the recipient's immune system to allow the donated kidney to function properly. One goal in our study is to decrease the duration you will need to be on immunosuppressant drugs following your kidney transplant as the bone marrow transplant will provide you with the donor's immune system which should not attack the donor kidney.
The purpose of this study is to determine whether intravenous immune globulin is safe and effective in the acute treatment of pain crises in sickle cell disease. Funding Source: Food and Drug Administration (FDA), Office of Orphan Products Development (OOPD)
The purpose of this study is to determine the antioxidant effect of prolonged use of sorghum bicolor (jobelyn) to increase the level of plasma superoxide dismutase and glutathione reductase in patients with sickle cell disease and to determine if there is any improvement in the quality of life of the patients.
The purpose of this study is to determine whether simvastatin is effective in reducing the frequency and intensity of vaso-occlusive pain episodes in patients with sickle cell disease.
This study is designed to investigate the presence and absence of abnormal heart muscle contractions during sickle cell crises. You will be asked to do echocardiography during and after your admission to the hospital. We will compare tow pictures and study the differences.
The purpose of this study is to use comprehensive exercise testing to examine longitudinal changes in exercise capacity over a 2 year period in children and young adults with sickle cell anemia.