View clinical trials related to Iron Overload.
Filter by:The effect oral iron chelator Deferiprone on the Oxidative stress and on Iron Overload status in transfusion dependent, iron-overloaded low risk MDS patients; Primary Objective: • To evaluate the effect of Deferiprone on oxidative stress parameter - Reactive oxygen species (ROS). Secondary Objectives: - To evaluate the effect of Deferiprone on other oxidative stress parameters 1. Reduced glutathione 2. Membrane lipid peroxidation 3. External phosphatidylserine - To evaluate the change from baseline to last visit in parameters of iron load. 1. Serum ferritin (despite ongoing RBC transfusions during the study period). 2. LIP 3. LPI 4. serum hepcidin - To evaluate the change from one month preceding baseline visit to last month on study in transfusion requirements. - To monitor safety measures: 1. Adverse events (AEs). 2. Number of discontinuations due to AEs Study design: Single-arm, open-label, multi-center study in 20 iron-overloaded patients with low risk MDS. All participants will be treated with deferiprone for up to 4 months. Patients will have complete blood count monitored weekly, and will visit the site monthly for assessments of safety and efficacy.
This is a randomized, open-label, multicenter, two arm, phase II study to evaluate treatment compliance and change in serum ferritin of a deferasirox granule formulation and a deferasirox DT formulation in children and adolescents aged ≥ 2 and < 18 years at enrollment with any transfusion-dependent anemia requiring chelation therapy due to iron overload, to demonstrate the effect of improved compliance on iron burden. Randomization will be stratified by age groups (2 to <10 years, 10 to <18 years) and prior iron chelation therapy (Yes/ No). There will be two study phases which include a 1 year core phase where patients will be randomized to a 48 week treatment period to either Deferasirox DT or granules, and an optional extension phase where all patients will receive the granules up to 5 years. Patients who demonstrated benefit to granules or DT in the core phase, and/or express the wish to continue in the optional extension phase on granules, will be offered this possibility until there is local access to the new formulation (granules or FCT) or up to 5 years, whichever occurs first.
Patients with myelodysplastic syndrome (MDS) have an ineffective hemopoiesis and often suffer from anemia. This can lead to red blood cell transfusion dependency and iron overload. Iron overload can affect the liver and lead to liver fibrosis and worst case cirrhosis. Ferritin is usually used to monitor the iron overload. In this study MDS patients will have a transient elastography performed which measures the liver's stiffness. The purpose is to investigate whether liver stiffness measurements are coherent to ferritin levels.
The FAIR-ALS study is to investigate the safety and efficacy of a scavenger treatment of iron deferiprone, which would reduce the brain iron to limit the development of amyotrophic lateral sclerosis. It has been shown an excess of iron in the central nervous system carrying a sporadic ALS patients. Iron overload associated with a loss of motor neurons may explain the signs of the disease (atrophy). The investigators discuss the hypothesis that reducing excess iron, the investigators can reduce the loss of neurons and thus the progression of signs of the disease.
The purpose of this study is to survey iron storage levels and their prognostic consequences in the context of acute inflammation. The impact of iron substitution in inflammatory states is controversial. We hypothesize that iron substitution may influence outcome in patients in inflammatory states.
Assessed the new film-coated tablet formulation to the currently approved dispersible tablet formulation with regards to overall safety, Gastrointestinal (GI) tolerability, palatability, satisfaction and compliance
Hereditary haemochromatosis (HHC) is a frequent disease in Brittany (5 to 7‰), responsible first for biological disorder in blood iron parameters and minor clinical disorders, before evolving to potential life-threatening consequences such as diabetes, liver cirrhosis and congestive heart failure. The improvement of screening and treatments made those severe affections rare enough not to evaluate myocardial iron overload a systematic part of the starting check-up. Nonetheless this myocardial iron overload might have severe implications on cardiac function on a long term basis. A single trial was conducted on limited number of patients with 1.5 Tesla MRI, which showed a myocardial iron overload (defined by a myocardium T2* value <20ms) in 19% of the subjects. The main objective of this study is to precisely estimate cardiac iron overload in treatment naive patients with newly diagnosed HFE hereditary haemochromatosis with a 3 Tesla MRI, more sensitive than the 1.5 Tesla one, in order to later appreciate its correlation with cardiac morbidity in HHC.
Cardiac failure is the major cause of death in patients with thalassemia and chronic blood transfusion-related iron overload. The treatment of thalassemia has been revolutionized over the past decade with the implementation of cardiac MRI based assessment of iron overload. This has enabled detection of cardiac iron overload prior to symptomatic heart failure and now allows for timely therapy which has resulted in a substantial decrease in mortality. However, currently implemented MR imaging techniques assess for iron content only and not for iron related diffuse fibrosis which play a role in iron related heart failure. Histopathologic studies indicate that patients with iron overload have diffuse interstitial fibrosis. Quantitative MR techniques have shown that patients with various cardiomyopathies demonstrate diffuse myocardial fibrosis and that these changes correlate with changes in cardiac function. The investigators propose that quantitative cardiac MRI for assessment of diffuse myocardial fibrosis can further improve our ability to detect early damage to the myocardium and prevent morbidity and mortality from cardiac iron overload. Detection of fibrosis in patients with thalassemia may allow for earlier identification of cardiomyopathy when compared to other techniques in clinical use including T2* analysis. Identification of fibrosis could affect patient management as it would allow for tailoring of iron chelation therapy and may lead to better understanding of the disease processes contributing to heart failure and arrhythmia in these patients.
Red cell transfusions are an important part of supportive cancer therapy. The iron in the transfused blood may build up in the body since the human body has no way to get rid of extra iron. Iron tends to build up in the liver and the heart muscle. It is unknown if iron build-up is present many years after completing cancer therapy. It is also not known if extra iron causes harm to internal organs. Researchers at St. Jude Children's Research Hospital (SJCRH) want to understand if iron build-up (called "iron overload") exists in survivors of leukemia. They also want to know if iron overload can cause injury to your organs if it is present. Liver iron accumulation has been documented in childhood cancer survivors, however, it is not known if iron associated organ toxicity is contributing to the long-term morbidity that has been well documented among these survivors. This study will investigate the prevalence of iron overload and the association of tissue iron burden with markers of organ dysfunction in leukemia survivors. This study will determine the prevalence of iron overload among long-term leukemia survivors that underwent blood transfusion. This study will use blood and magnetic resonance imaging (MRI) testing to determine iron overload of specified organs. Understanding the prevalence of iron overload could impact surveillance practices in leukemia survivors. PRIMARY OBJECTIVE: - To determine the prevalence of iron overload in the liver [liver iron concentration (LIC) >3mg/g using R2* MRI measurements] and in the heart (T2* <20 ms) among long-term leukemia survivors transfused with ≥50ml/kg of packed red blood cells. SECONDARY OBJECTIVES: - To examine the relationship between hepatic, cardiac, and endocrine dysfunction and transfusionally acquired iron overload as defined by R2* and T2* MRI among survivors of pediatric leukemias. - To investigate the association between serum ferritin, transferrin saturation, non-transferrin-bound iron, and hepcidin measurements with R2* and T2* MRI-defined iron overload.
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.