Active clinical trials for "beta-Thalassemia"

OBJECTIVES: I. Determine the frequency and severity of osteopenia and osteoporosis in patients with thalassemia major who undergo dual energy x-ray absorptiometry, and correlate these findings with other relevant endocrinologic measurements.

The study will investigate the relation between erythrocyte glutamine/glutamate ratio and pulmonary hypertension risk in Egyptian thalassemic children in Assiut University Children Hospital

The definition of Thalassemia Intermedia is not generally accepted and the specific clinical and laboratory characteristics varies between patients. Some patients are blood transfusion dependent and others are occasionally transfused. Also the mutations in the beta globin gene are diverse. Another mutations including mutations in the alfa globin gene and in the xmn1 gene can affect the clinical course of this disease. The purpose of this study is to summarize the characteristics of patients with Thalassemia Intermedia treated at the Pediatric Hematology Unit at the HaEmek Medical Center in Israel

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.

The purpose of this study is to determine whether one dose of the 13-valent pneumococcal conjugate vaccine (PCV13) induces immunological memory in asplenic adults and whether previously administered immunizations with the 23-valent polysaccharide pneumococcal vaccine influence the cellular immune response to PCV13 in this group.

In Italy there are about 5000 patients with dependent transfusion thalassemia (source Italian Thalassemia and Hemoglobinopathies - SITE) and a smaller number, currently not definable, of patients with sickle cell anemia in chronic transfusion. A recent study in the Lombardy region identified the positivity of anti-Covid-19 antibodies in 4.5-7% of asymptomatic donors (Valenti L et al). As already known, a preliminary study conducted in Italy (Motta I et al, Hussain FA et al, Taher A et al) reported only 11 cases of symptomatic infection all with benign evolution. Currently there are 15 reported cases (12 thalassemias and 3 sickle cell anemias). 75% of the cases have been identified in Lombardy. Our hypothesis is that in a percentage of polytransfused patients a transmission of the virus may have developed that stimulated the production of protective antibodies. This could be an explanation of the low contagiousness and severity of the infection in polytransfused patients. Currently no data are available for this purpose. This study will be conducted in collaboration with the Microbiology Unit and involves the determination of SARS-CoV-2 antibodies (anti-s1 and s2) by CLIA method with a high sensitivity (94.7%) and specificity (98.5%).

Authors compared incidence of Hemolysis on Cardiopulmonary Bypass surgery for repair of congenital heart disease in Pediatric Patients between patients with thalassemia major and control group

The purpose of this study is to collect peripheral blood and bone marrow aspirate samples from thalassemia patients in Tehran, in a collaborative effort to develop an erythroid lineage specific chimerism assay applicable to patients with thalassemia. Development of such an assay would be useful both for identification of the exact mutation causing the disease, as well as for providing a direct method to measure and monitor the kinetics of donor erythropoiesis in this patient population following transplant.

This retrospective study aimed to evaluate the demographic characteristics, clinical conditions in term of physical examination findings), functional status, and laboratory results of patients with thalassemia minor (TM) and breast cancer (BC) in order to identify any differences between the group with BC only. Available data as anticancer treatment, comorbidities, weight and height will be combined to report body mass index (BMI) in kg/m2, systolic and diastolic blood pressure, heart rate, ECG, transthoracic echocardiography, blood count, lipid panels, glucose, kidney function tests, (N terminal) NT-proBNP, troponins, handgrip assessments, functional status were extracted from patients files and hospital electronic archives.

Background: Thalassemia major (TM) is a chronic disorder that affects a person s ability to produce hemoglobin, resulting in anemia. Hemoglobin is a component of red blood cells that carries oxygen and nutrients to cells in the body. As a result, individuals require life-long blood transfusions and extensive medical management. Studies have shown that because of its demanding nature, TM might negatively affect an individual s quality of life, sense of self, and social integration, but little is known about affected individuals overall experiences with and perceptions of TM. TM is caused by a genetic change in the thalassemia gene. The disease is passed to children by parents who carry one copy of the altered thalassemia gene. The parents are called carriers of the condition and have a 25 percent chance of having a child with TM. It is possible to screen for carriers of TM and use this information for pregnancy planning and management. TM is common among people from South and South East Asia and is an important public health concern in Singapore. More research is needed to explore the lives of people with TM, and the societal perceptions that exist in Singapore about TM. Objectives: To describe the familial, social, and professional experiences of individuals with TM. To investigate the social messages being given out about TM in Singapore and the sources of those messages. To explore the impact of these experiences, perceptions, and social messages on individuals who have TM. To explore how the experiences and perceptions of individuals who have TM affect their life, sense of self, social integration, and compliance with medical treatment. Eligibility: Residents of Singapore who are 14 years of age or older, can speak English, and currently have TM. Parents of individuals with TM who are 14 years of age or older. Parents must be 21 years of age or older, be able to speak English, and have had caregiving responsibilities for their child at some point. Design: All participants will have a one-time semi-structured interview, followed by a questionnaire to obtain demographic information. Interviews will be conducted in Singapore and are expected to last for 30 to 90 minutes. Individuals with TM will be asked about their own perceptions of TM; familial, social, and professional experiences involving TM; and their perceptions of others views and of social messages related to TM. Parents of individuals with TM will be asked about their experiences in caring for a child with TM, talking to their child about TM, telling people about their child s TM, and interacting with health care providers.