View clinical trials related to Thalassemia.
Filter by:Beta-thalassemia represents a group of recessive inherited hemoglobin disorders characterized by reduced synthesis of β-globin chain. The homozygous state (β-thalassemia major) "TM" results in severe anemia, which needs regular blood transfusion . The life expectancy in patients with TM has increased due to therapeutically management, such as frequent transfusion, desferal administration and bone marrow transplantation. Diabetes is clinically characterized by hyperglycemia due to either low circulating concentrations of, or decreased sensitivity to, insulin. Patients with TM typically exhibit β-cell or insulin insufficiency, and may develop diabetes due to toxic levels of iron in their pancreas, one of the strongest predictors of β-cell destruction. By contrast, hyperinsulinemia, secondary to insulin resistance, with normal glucose tolerance has also been observed. The pathogenic mechanisms leading from siderosis to diabetes are poorly understood.
This is a Phase 2 open-label, single-arm design study with dose escalation by subject cohort . The study is designed to monitor the PTG-300 safety profile, to obtain preliminary evidence of efficacy of PTG-300 for the treatment in β-thalassemia.
An open label, safety and pharmacokinetic study of oral hydroxyurea solution administered to children from 6 months to 17.99 years (i.e. to the day before 18th birthday), with a 12 to 15 month treatment period for each participant. The study treatment duration will be for 6 months at the maximum tolerated dose [MTD], which is usually reached by 6 months after initiation of treatment. For patients in whom time to MTD is longer than 6 months or not achieved at all, the maximum duration of study treatment will be 15 months.
This is primarily an observational trial in patients with chronic anemia syndromes (sickle cell disease and thalassemia) and control subjects. The key purpose is to understand how brain blood flow reserve (the ability of the brain to increase its flow in response to stress) is altered in patients with chronic anemia. Since this parameter may depend on anemia severity, we will perform the MRI monitoring prior to and following clinically indicated transfusions in a subset of patients. Most patients will already be prescribed hydroxyurea as part of their standard of care. Since hydroxyurea could impact brain blood flow, there is also a small pilot study (20 patients, nonrandomized, open label) where MRI imaging will be performed prior to and following administration of hydroxyurea up to maximum tolerated dose. The study will enroll 90 adult subjects with transfusion independent sickle cell disease (70 SS, 10 SC, 10 Sβ0) and 60 patients with transfusion-dependent sickle cell disease. It will also include 10 transfusion independent thalassemia patients and 20 transfusion dependent thalassemia patients as well as 40 control subjects recruited from first degree relatives of the sickle cell disease population. All eligible subjects will be asked to provide informed consent before participating in the study.
Thalassemia is an anemia or pathological state caused by compounding absently or inadequately of one or more globin chains of hemoglobin due to the defects of the globin gene,and the carrying rate is high in southern China. Although there are many studies of Thalassemia, the relationship between the globin gene defects and the early embryo development has not been reported. This study intends to carry out a retrospective analysis on the embryonic development of the patients with thalassemia assisted by PGD from January 1, 2011 to now in our hospital, to explore whether the HBA or HBB gene defects have a certain influence on the early embryo development, so as to accumulate certain data for reproductive health research.
1. Primary objectives: - To determine the maximum tolerated dose (MTD) of CN128 for single oral administration in thalassemia patients aged 16 and above - To study the pharmacokinetics of CN128 in thalassemia patients aged 16 and above 2. Design: The study is designed as a randomized, double-blind, single ascending dose, phase Ia (first in human) trial. The study is consisted of: single dose ascending; dose escalation pharmacokinetics; metabolite structure identification in plasma, urine and feces. 3. Subject inclusion criteria: - Thalassemia patients with serum ferritin ≥500 μg/L - Patients aged 16 and above - Without blood transfusion within 1 week before admission, with hemoglobin ≥ 80 g/L - Voluntarily participate in the experiment, and the process of obtaining informed consent form meeting the requirements of GCP 4. Subject exclusion criteria: - Hepatitis B surface antigen positive, hepatitis B core antibody positive and HBV-DNA positive, hepatitis C anti-HCV positive, HIV positive, Treponema pallidum positive - Patients with history of active digestive tract diseases (including gastric ulcer, duodenal ulcer, gastroesophageal varices, ulcerative colitis, Crohn's disease, digestive tract tumors, familial genetic multiple intestinal polyps), history of digestive tract perforation, history of digestive tract surgery and influence on drug absorption, and other patients whom investigators believe to have potential intestinal complications - Liver dysfunction (ALT or AST > 2.5×ULN); or renal dysfunction (serum creatinine > 1.5×ULN) - Uncontrolled active infections - Patients currently taking CYP3A strong inducer or inhibitor drugs or drugs that may prolong the QT interval without temporary suspension of use or temporary substitution of the said drugs - ect. 5. Usage: After fasting for at least 10 hours, the whole tablet was swallowed with 240 mL warm water on an empty stomach. Water was forbidden within 1 hour before and after the administration. Water was allowed 1 hour after administration. 6. Pharmacokinetic assessment of CN128 administration: PK parameters of CN128 include AUC 0-t, AUC 0-∞, Cmax, Tmax, t1/2, CL/F, Vd/F, MRT ,λz etc. 7. Safety and tolerability assessments: Evaluation was based on the incidence of adverse events (AE) after administration, termination information, laboratory test results, 12-lead electrocardiogram and vital signs. 8. Statistics
Thalidomide is known to have hypnosedative, immuno-modulatory and anti-angiogenic effects. The drug is widely used in several neoplastic disorders (e.g. multiple myeloma and malignant melanoma), inflammatory conditions (e.g. Crohn's disease) and skin disorders (e.g. leprosy). Thalidomide has been successfully used in adult thalassemia patients. The current study explores its role in transfusion-dependent thalassemia patients.
This study is a multicenter, open-label, two-period crossover design that evaluates the safety, tolerability, pharmacokinetics and preliminary evidence of iron chelating activity of DST-0509 as compared to Jadenu and Exjade in transfusion-dependent thalassemia patients with transfusional iron overload, requiring iron chelation therapy and demonstrating an inadequate response to Jadenu or Exjade for greater than 3 months duration. Up to 36 patients will be evaluated (18 in each treatment arm), however, the balanced randomization may enroll fewer patients based on recruitment status.
Thiotepa is a chemotherapy drug used extensively in bone marrow transplantation. Thiotepa is a prodrug that undergoes metabolic conversion in the liver by CYP2B6 and CYP3A4 to its primary active metabolite, triethylene phosphoramide (TEPA). The goal of this study is to determine what causes some children to have different drug concentrations of thiotepa and TEPA in their bodies and if drug levels are related to whether or not a child experiences severe side-effects during their bone marrow transplant. The hypothesis is that certain clinical and genetic factors cause changes in thiotepa and TEPA drug levels in pediatric bone marrow transplant patients and that high levels may cause severe side-effects.
Melphalan is a chemotherapy drug used extensively in bone marrow transplantation. The goal of this study is to determine what causes some children to have different drug concentrations of melphalan in their bodies and if drug levels are related to whether or not a child experiences severe side-effects during their bone marrow transplant. The hypothesis is that certain clinical and individual factors cause changes in melphalan drug levels in pediatric bone marrow transplant patients and that high levels may cause severe side-effects.