View clinical trials related to Iron Overload.
Filter by:The investigators' primary objective is to study prevalences of myocardial iron overload, defined as a cardiac T2*< 20 ms, in 3 populations of multiply transfused patients, affected with thalassemia, sickle cell disease, and myelodysplasia.
Thalassemia Major patients developed Iron Overload due to blood transfusions and intestinal iron absorption. Renal function caused by Iron overload was studied in a previous study and shows principally tubular disfunction. In this previous study the Iron chelator used was Deferrioxamine. In the last five years an oral Iron chelator was introduced and approved by the FDA, Deferasirox, (Novartis, Switzerland and USA). The purpose of this study is to assess the renal function in Thalassemia Major patients treated with this new oral iron chelator and compare the results with our previous study.
Iron overload is a leading cause of morbidity and mortality in transfusion-dependent patients. Deferasirox is the most promising iron chelator agent in several clinical scenarios. The investigators propose a retrospective study (chart review) to evaluate comprehensive iron overload management in transfusion-dependent patients treated with deferasirox for up to 5-10 years in a real clinical practice setting.
Observational, open label, prospective, multi-center, post-marketing drug surveillance program.
Multicentre, randomised, open label, non-inferiority active-controlled trial to evaluate efficacy and safety of a 12-months treatment with deferiprone (DFP) at dose of 75-100 mg/kg/day versus deferasirox (DFX) at dose of 20-40 mg/kg/day in paediatric patients (1 month < 18 years old) affected by hereditary haemoglobinopathies and requiring frequent transfusions and chelation.
Deferiprone (DFP) is the most extensively studied oral iron chelator to date. It has been authorised in Europe in 1999 for the treatment of iron overload in patients with beta-thalassaemia major when DFO is contraindicated or inadequate. Despite a wide experience of DFP there are limited experimental data available on DFP in children and no pharmacokinetic data in children under 6 years of age. On the basis of the existing data in adults and adolescent, in the DEEP-1 trial a pharmacokinetic bridging model will be developed to support the dose selection in children aged less than 6 years. The study will consist of two phases, namely an experimental phase, during which patients will receive a single dose and a modeling phase, during which PK data obtained after single dose in patients < 6 years of age will be analysed in conjunction with historical PK data in adults and older children and adolescents. The model-based analysis of the data obtained after single dose will enable the assessment of the dosing regimen required for the purpose of accurate pharmacokinetic bridging. The ratio between the predicted systemic exposure parameters (AUC and Cmax) in the target population and reference group will be used as basis for recommendation of the dose in the target population.
Iron, one of the most common elements in nature and the most abundant transition metal in the body, is readily capable of accepting and donating electrons. This capability makes iron a useful component of various, essential biochemical processes. Despite the essential role of iron, the excess of iron is toxic to the human body. It is critical for the human body to maintain iron balance, since humans have no physiologic mechanism for actively removing iron from the body. The development of iron overload occurs when iron intake exceeds the body's capacity to safely store the iron in the liver, which is the primary store for iron. Long-term transfusion therapy, a life-giving treatment for patients with intractable chronic anemia is currently the most frequent cause of secondary iron overload. The mounting evidence regarding the mortality and morbidity due to chronic iron overload in transfusion dependent anaemias has led to the establishment of guidelines that aim the improvement of patient outcomes. Further prospective studies are warranted in order to assess the impact of iron overload in patients with acquired anaemias. In this study, non-invasive R2- and T2*-MRI techniques will be applied to the liver and the heart, respectively, to complement the primary variable (serum ferritin) assessed in patients with various transfusion-dependent anaemias. The main objective of this study is to assess the prevalence and severity of cardiac and liver siderosis in patients with transfusional siderosis. This study will also aim to establish possible correlations between cardiac and liver iron levels with clinical effects in patients with different transfusion-dependent anaemias. Patients will be eligible for enrollment irrespective of receiving chelation therapy or not (and irrespective of the chelating agent used).
We hypothesize that the combination treatment with deferasirox and deferiprone will be well tolerated and will result in significant improvement in cardiac and liver iron levels.
Haemochromatosis is a preventable genetic iron overload disorder. Untreated, it can shorten life due mainly to liver cirrhosis and cancer. It can be prevented by blood donation to maintain normal iron levels. It is unclear, however, whether treatment is necessary when individuals have moderate elevation of iron in the body. This research project will study the effects of treatment in this group by assessing a number of scans, questionnaires and blood tests in treated and untreated individuals.
This is a prospective, single-arm, multicenter, national, phase II clinical study. The purpose of this Phase II study is to examine the safety and efficacy of deferasirox to decrease iron overload (IOL) in the posttransplant period in patients with beta-thalassemia major.