Active clinical trials for "Hemophilia A"

To describe the current treatment practice during 12 months for previously treated patients diagnosed with haemophilia A or haemophilia B.

Multidisciplinary assessment of the physical, functional and psychosocial alterations in patients with hemophilia around the country. The aims of this study are: Descriptive study of joint involvement in hemophilia patients with and without a history of hemarthrosis. Descriptive study of the alterations of periarticular muscle strength as a result of acute processes or the development of chronic articular sequelae. Descriptive study of biomechanical changes in lower limb joints and their impact on gait in patients with hemophilia. Descriptive study of the joint space, regarding hemarthrosis and synovitis, intraarticular by ultrasonography. Descriptive study of the relationship between skeletal muscle pathology in patients with hemophilia and their perceptions of it and their quality of life.

This study is conducted in Africa and Asia. The aim of this study is to evaluate in the participating countries the orthopaedic status and the degree of arthropathy of severe haemophilia patients in general.

This study examines the progression of joint disease in children with hemophilia assigned to either standard treatment or enhanced therapy.

The Second Multicenter Hemophilia Cohort Study (MHCS-II) will evaluate and prospectively follow approximately 4500 persons with hemophilia who were exposed to hepatitis C virus (HCV). The vast majority will have been infected with HCV, and approximately 1/3 will have been infected with human immunodeficiency virus (HIV). Primary objectives are to quantify the rates of liver decompensation, hepatocellular carcinoma, and non-Hodgkin lymphoma and to evaluate candidate clinical, genetic, virologic, serologic and immunologic markers that are likely to be on the causal pathway for these conditions. Candidate clinical and laboratory markers will be examined longitudinally to define changes over time and their relationships to one another. Collaborative studies will focus on genome scanning and evaluation of candidate genetic loci for susceptibility or resistance to HCV and HIV infections or to the diseases that result from these infections. Additional studies will identify response and complication rates of various anti-HCV and anti-HIV regimens in the setting of comprehensive clinical care of persons with hemophilia.

the aims of SACHA study was to appreciate prevalence, evolution and follow-up, treatment response of patients with acquired hemophilia with biological and clinical data. Inclusion criteria were factor VIIIc below 30% associated with presence of Facgteur VIII inhibitor (titer > 1 u Bethesda. Clinical and biologival data were obtained at Day 0 (as soon as possible and at 1, 3, 6 and 12 months.Informations were notified to co-investigators with the help of two french medical society (Internal medicine, french haemostasis and thrombosis society.

Primary prophylaxis in severe hemophiliacs is defined that prophylaxis therapy starts before 2 years of age and prior to any clinically evident joint bleeding or after first joint bleeding and prior to the onset of joint damage irrespective of age, joints can be kept normal or very mildly damaged till teenage or adulthood. Primary prophylaxis has been proved to be more beneficial and cause less damage to joint than "on-demand" therapy. Primary prophylaxis is also known to be able to decrease the occurrence of factor VIII inhibitor and is the most advanced and useful, cost-effective therapy for hemophilia care. However, it requires 2 to 3 injections of factor VIII or IX of 20-50 IU/Kg doses every week, it costs a lot of expenses. In the year 2013, we tried hard to discuss with Bureau of National Health Insurance (BNHI) and have meeting a couple of time, eventually a guideline of an intermediate-dose prophylaxis for severe hemophilia was established and a consensus was reached that this prophylactic treatment will be cost effective without increased burden of total budget. This guideline was finally approved by BNHI and will be implemented from July 1st, 2014. In oder to evaluate the efficacy of prophylaxis treatment, patients will be arranged to come back to each hemophilia center at least once a year to have investigation of doses and annual consumption of clotting factors, frequencies and causes of bleedings, especially joint bleedings, joint outcome by studies of hemophilia joint health score (HJHS), hemophilia actives list and health-related quality of life. These results will be collected and compared between intermediate-dose prophylaxis group of patients and on demand treatment group of patients. The life span of hemophiliacs has been improved remarkably in recent years due to sufficient and adequate treatments, especially prophylaxis treatment, therefore comorbidities in the hemophilic population, e.g. hypertension, diabetes, hyperlipidemia and cancer, etc, have been found with prevalences close to those in non-hemophilic population. It is worth that the prevalence of these comorbidity will also be investigated. In addition, basic data of the patients including age, sex, severity, the development of inhibitor and viral infection etc will also be collected for analysis.

To asses quality of life in patients with hemophilia clinically.- -To avoid or minimize structural damage to goints and muscles by making patients aware of importance of rehabilitation

Background. Hemophiliac arthropathy is the main long-term physical damage in patients with hemophilia, causing disability and functional limitations. Objective. Assessment of the efficacy of a prophylactic treatment with EHL products for improving the musculoskeletal health of adult patients with hemophilia. Study Design. Multicenter observational clinical study. Method. 40 patients with hemophilia A will be included in this study. Patients will be recruited from 5 centers located in various regions of Spain (Community of Madrid, Galicia, Community of Valenciana, Málaga and Vizcaya). The dependent variables will be: bleeding frequency (self-report of bleeding), changes in the dosage of factor VIII with EHL products (rFVIIIFc), pain (measured with the visual analog scale and a pressure Algometer), degree of kinesiophobia (Tampa Scale of Kinesiophobia), degree of adherence to treatment (Veritas-Pro scale), joint health (using the Hemophilia Joint Health Score), muscle strength (using a dynamometer) and functionality (using the 6-Minute Walking Test). Three evaluations will be carried out: baseline, at 6 months, and at the end of the study period, at 12 months. The evolution of quantitative variables shall be analyzed by parametric tests (t-student test) or non-parametric tests (Wilcoxon test). Pearson's correlation coefficient shall be used to obtain the correlation between the dependent and independent variables. By means of a linear regression analysis we will record the percentage influence of the clinical variables relative to the dependent variables measured in this study Expected results. The aim is to establish the effectiveness of the prophylactic treatment in the improvement of the state health, joint pain, muscle strength and functionality in patients with hemophilia.

This study is designed to accurately identify the pharmacogenetic determinants of risk of Factor VIII (FVIII) inhibitor development by focusing on only a select group of Hemophilia A (HA) patients who have: (i) received a recombinant FVIII therapeutic product containing the same primary amino acid sequence since their original diagnosis; (ii) verifiable FVIII infusion histories; and (iii) been tested regularly for FVIII inhibitor development.