View clinical trials related to Sickle Cell Disease.
Filter by:The purpose of this study is to determine the effectiveness of A 001 infusion in preventing acute chest syndrome in sickle cell disease (SCD) subjects with vaso-occlusive crisis, fever, and elevated serum C-reactive protein (CRP).
Background: - Sickle cell disease often causes crises, with episodes of pain. Many people with sickle cell disease also have pain between crises. Inflammation is an important part of sickle cell pain. It may be related to levels of nitric oxide. Nitric oxide is a gas in the body that helps relax blood vessels and may be related to the pain from sickle cell disease. Researchers want to study the relationship between blood levels of nitric oxide and pain in people with sickle cell disease. Researchers also want to study how certain genes express themselves related to sickle cell pain. Objectives: - To collect blood samples and other genetic expression information to study sickle cell pain and its relation to nitric oxide levels in the blood. Eligibility: - People at least 18 years of age who have sickle cell disease. - Healthy volunteers at least 18 years of age. Design: - This study requires a screening visit and four study visits scheduled 1 week apart. Each visit will last about 1 hour. - Participants will be screened with a medical history and physical exam. They will complete questionnaires about pain levels (if any). They will also provide blood samples for genetic and other testing. - Participants will have a breath test to see how much nitric oxide they exhale. They will also have a test of their ability to detect small changes in temperature and touch. - Participants will keep a diary to record daily pain levels and pain medicines taken. They will write down what they eat to track foods that contain nitrates (such as meats like ham and bacon and vegetables like beets and spinach). - At each of the four study visit, participants will bring the pain diary, provide blood samples, and have breath nitric oxide tests.
Allogeneic blood and marrow transplantation remains the only viable cure for children who suffer from many serious non-malignant hematological diseases. Transplantation, however, carries a high risk of fatal complications. Much of the risk stems from the use of high dose radiation and chemotherapy for conditioning, the treatment administered just prior to transplant that eliminates the patients' marrow and immune system, effectively preventing rejection of the donors' cells. Attempts to make blood and marrow transplantation safer for children with non-malignant diseases by using lower doses of radiation and chemotherapy have largely failed because of a high rate of graft rejection. In many such cases, it is likely that the graft is rejected because the recipient is sensitized to proteins on donor cells, including bone marrow cells, by blood transfusions. The formation of memory immune cells is a hallmark of sensitization, and these memory cells are relatively insensitive to chemotherapy and radiation. Alefacept, a drug used to treat psoriasis, on the other hand, selectively depletes these cells. The investigators are conducting a pilot study to begin to determine whether incorporating alefacept into a low dose conditioning regimen can effectively mitigate sensitization and, thereby, prevent rejection of allogeneic blood and marrow transplants for multiply transfused children with non-malignant hematological diseases.
Majority of patients who are eligible for allogeneic HSCT for cure of severe sickle cell disease lack a matched family donor. This study aims for cure of sickle cell disease by performing unrelated donor (outside family) allogeneic HSCT. Donors or unrelated cord blood units will be selected from the NMDP database. It is designed to estimate the safety of a novel reduced toxicity, yet an immunosuppressive and myeloablative preparative regimen. This is meant for patients <21 years old who have severe complications from sickle cell and do not have matched sibling donors in the family to undergo stem cell transplant. Patients will undergo transplant using unrelated donor stem cells after receiving the protocol therapy. They will be followed for 1 year to monitor for engraftment of donor cells and complications like graft versus host disease (GVHD), infections and death.
The hypothesis of this study is: Femoral nerve blocks can feasibly be performed on patients with Sickle Cell Disease and painful crisis in the Emergency Department.
Patients with sickle cell anaemia may develop renal disease. In fact, renal disease occurred in 40% of adults patients (macroalbuminuria) with evolution to end-stage renal disease for half of them. Microalbuminuria is an early and sensitive marker of glomerular damage. It appears during the first decade and occurred in 20 to 25% of infants (2 to 18 years). Physiopathology of renal scarring is not well understood actually. Renal scarring might be due to glomerular hyperfiltration and vascular and endothelial damage. Angiotensin-converting enzyme inhibitors (ACE) were studied and used in diabetic nephropathy. In a study on 26 sickle cell adults, albuminuria was reduced about 50% by ACE compared to placebo after six months treatment. It might be interesting studying ACE efficacy in sickle cell children with microalbuminuria because renal disease is directly related to sickle cell and is not influenced by other cardiovascular risk factors like in adult patients. We hypothesized to have a successful ACE treatment in more than 40% of cases after a nine months treatment period. A success is defined as a 50% reduction of the albuminuria/creatinuria ratio.
This study will determine if administration of sodium nitrite is safe and can improve small vessel blood flow and tissue oxygenation when given as an additional treatment in patients with acute vaso-occlusive crisis (pain crisis) associated with sickle cell disease.
Patient-Controlled Analgesia (PCA) means that the patient is in control of his/her pain medicine. In this study two (2) different treatment plans of Patient-Controlled Analgesia will be used to treat people with sickle cell disease who are admitted to the hospital for a pain crisis. The purpose of this study is to find out if one plan is better than the other in controlling sickle cell pain. If you are eligible for the study, you will be assigned by chance (like flipping a coin) to either get a higher continuous amount of the pain medicine with a smaller amount for pain as you need it, OR to get a smaller continuous amount of pain medicine with a larger amount of pain medicine as you need it. You or your study doctor can not choose which plan you receive, and you will not be told which one you have been assigned to. The doctors and nurses taking care of you will know which plan you are assigned to so they can safely and effectively take care of your pain. Some members of the study team will not know which plan you are on. We will give you morphine sulfate or hydromorphone (dilaudid) for your pain. These medicines are approved by the Food and Drug Administration (FDA) and have been used for a long time to relieve pain. If you have been treated for pain before with hydromorphone (dilaudid) and you prefer it to morphine, then you may choose to get it during the study. If you have not received hydromorphone (dilaudid) before or you do not have a preference then you will be given morphine for pain. The pain medicine will be given through the IV in your arm. You will receive morphine or hydromorphone continuously through the IV and will also be able to use the PCA machine to give yourself extra pain medicine as you need it for pain. You will need to push a button to give yourself extra medicine for pain. The amount of pain medicine you get on these plans is based on how much you weigh.
This research is being done to see if the drug sildenafil (Viagra) has an effect on the frequency of recurrent priapism and the quality of life in males with sickle cell disease.
The use of oral ibuprofen combined with Opioid (Morphine or Diamorphine) administered through patient controlled analgesia (PCA) will be clinically effective for acute pain crisis in adults with sickle cell disease (SCD).