View clinical trials related to Anemia, Sickle Cell.
Filter by:This study will assess the safety and efficacy of bosentan therapy (in a study known as ASSET) for patients who have high blood pressure in the lungs associated with sickle cell disease. That form of hypertension places people at risk for complications, including shortness of breath, pain, pneumonia, and death. Previous studies have shown that bosentan can be helpful in reducing pulmonary hypertension. Patients ages 16 and older who have completed the 16-week treatment in the ASSET 1 or ASSET 2 study and who are not pregnant or breastfeeding may be eligible for this study. The research will be conducted in about 25 hospitals in the United States and Europe. Up to 30 participants will be enrolled. The screening visit will involve a physical examination, blood sample of about 3 teaspoons for laboratory tests, and a pregnancy test. Patients' doctors will give them bosentan tablets (62.5 mg each), to take one in the morning and one in the evening. After 1 month, patients will be told whether the dose should be increased to 125 mg tablets to take twice a day. Two weeks after the increase in dose, a blood test will be done to analyze the drug's effects on the liver. After the start of treatment, patients will return for visits every 6 months, when there will be a 6-minute walking test to measure exercise capacity and evaluate shortness of breath. There will be follow-up for patients up to the end of the study and for 28 days after the last dose of bosentan is taken, to collect information about side effects. Some patients on bosentan have had changes in liver function and red blood cell count. Side effects commonly reported are headache, flushed appearance, inflammation of the throat and nasal passages, and gastrointestinal symptoms. If patients have sudden worsening in breathing in the first few weeks after taking bosentan, they should immediately tell their doctors, because it may be necessary to change the treatment.
The goal of this study is to test the hypothesis that hydroxyurea is effective for the specific treatment of secondary pulmonary hypertension found on screening in children and young adults with sickle cell disease.
The study will assess the effect of bosentan on pulmonary vascular resistance and exercise capacity in Sickle Cell Disease (SCD) patients diagnosed with Pulmonary Hypertension. It consists of 3 phases: screening, treatment and follow-up. During the screening visit, the study doctor will decide if patients meet the study requirements. All potential patients will have a diagnosis of increased pulmonary artery pressures that is shown by right heart catheterization conducted shortly prior to start of study treatment. Patients will be asked to perform exercise capacity test (walking as far as possible for 6 minutes). Following the baseline visit the treatment phase consists of 4 additional clinic visits during which the good and bad effects of the drug are reviewed and exercise capacity test will be repeated. Patients will be treated for 16 weeks. Blood samples will be collected every month, or more often, if needed. At the end of the study some of the patients will be asked to repeat the right heart catheterization. All patients will repeat an exercise capacity test. After completion of the study, patients will have the option of enrolling in a long-term follow-up study where all patients will receive active drug. Patients electing not to participate in the extension study will be followed up for safety assessments for about 28 days after the end of the study treatment.
The study will assess the effect of bosentan on pulmonary vascular resistance and exercise capacity in sickle cell disease (SCD) patients diagnosed with pulmonary arterial hypertension. It consists of 3 phases: Screening, Treatment and Follow-up. During the Screening visit, the study doctor will decide if patients meet the study requirements. All potential patients will have a diagnosis of increased pulmonary artery pressures that is shown by right heart catheterization conducted shortly prior to start of study treatment. Patients will be asked to perform exercise capacity test (walking as far as possible for 6 minutes). Following the Baseline visit, the treatment phase consists of 4 additional clinic visits during which the good and bad effects of the drug are reviewed and exercise capacity test will be repeated. Patients will be treated for 16 weeks. Blood samples will be collected every month, or more often, if needed. At the end of the study, patients will be asked to repeat the right heart catheterization and exercise capacity test. After completion of the study, patients will have the option of enrolling in a long-term follow-up study where all patients will receive active drug. Patients electing not to participate in the extension study will be followed up for safety assessments for about 28 days after the end of the study treatment.
This trial is a follow-up companion study to Protocol ICA-17043-10, a Phase III, multi-center, efficacy and safety study of ICA-17043. This is an open-label extension study collecting safety data on the use of ICA-17043 in subjects with sickle cell disease (SCD) (e.g., HbSS, HbSC, HbSb0-thalassemia, HbSb+-thalassemia subjects). All subjects who have successfully completed ICA-17043-10 will, if deemed appropriate by their study Investigator and appropriate consent by subject is given, enroll in the ICA-17043-12 study (Study 12). Only patients who participated in ICA-17043-10 are eligible for this open label study
The painful episode is the most common problem experienced by children with sickle cell disease. Although various treatments are available during painful episodes, the medication most commonly given for pain is a pain medication such as morphine. Fluids are also used. Even with these treatments, many children still have severe pain that is difficult to control. In addition to pain medications, there are other medications that may be useful. Methylprednisolone (solumedrol) and prednisone are a group of medications called steroids that may be helpful for painful episodes. These medications are known to lower the amount of inflammation (this means swelling, tenderness, and soreness) in the body. Because this medication may help with your pain, you are being asked to be a part of this study. These types of medications are used in other illnesses such as asthma, especially during times when the illness has gotten worse. The main purpose of this study is to see if the methylprednisolone and prednisone will lower the amount of pain and the length of hospital stay. In addition to the pain medication you will normally receive, you will be assigned to one of 2 groups: 1) the experimental group with the active form of the medicine, or 2) a comparison group without the active form of the medicine. In either group, you will still receive all of the treatments you would normally receive for a painful episode, including pain medicines and fluids. You and your doctors will not know what group you will be assigned. If you decide to be a part of the study the following will happen: For the first 5 days, you will be asked to: 1) describe your current pain (0=no pain to 10=a lot of pain), worst pain (0=no pain to 10=a lot of pain), least pain (0=no pain to 10=a lot of pain), and the amount of pain relief (0=no relief to 10=complete relief); 2) describe any signs or symptoms you feel, including filling out a pain scale form each day; 3) and take the medicines for 5 days, either at home or when in the hospital. Thirty days after the study, a study researcher will call and will ask questions about your pain, any painful episodes, and any medications you had. If you are discharged home sooner than 5 days after the start of the study, research staff will call you to ask you these questions, remind you to fill out your pain forms, and remind you to take your medicine. If you are discharged home, you will be given pain scales to fill out each day at home.
We hope to gain valuable information about the safety, success of engraftment, and rates of complications using alternate donor transplantation for children with severe SCD. Crucial information will be also collected about late effects from alternate donor BMT sickle cell, providing valuable information to clinicians and families making decisions among interventions for children with severe sickle cell disease. If successful, alternate donor transplantation in this setting could pave the way to offering curative treatment to many more patients with severe SCD.
The purpose of this pilot study is to provide a preliminary assessment of the feasibility and efficacy of intravenous ketamine in controlling pain in patients with sickle cell disease (who are admitted to the hospital with severe, acute pain crisis, and who have been resistant to intravenous narcotics).
Randomized, double blind placebo controlled clinical trial to evaluate effectiveness and safety of inhaled nitric oxide for the treatment of sickle cell painful crisis in pediatric patients with sickle cell disease.
Children with sickle cell anemia (SCA) seem to have higher energy needs than children who do not have the disease. This may be the reason why children and teenagers with sickle cell anemia tend to be smaller, weigh less, and have less fat and muscle than children and teens that do not have the disease. This study is being done to find out if giving a supplement called glutamine will help children with sickle cell anemia by lowering their energy needs and improving their growth and strength. Children will be randomly assigned (like a flip of a coin) to one of two groups. One group will take glutamine and one group will take a placebo (a protein mixture that looks like glutamine but may not have the same effect in the body). No one will know which group is taking which supplement until the study has been completed. Children will be in the study for 12 months.