View clinical trials related to Hemophilia A.
Filter by:This study is looking at how Mim8 works compared to other medicines in children with haemophilia A, who either have inhibitors or do not have inhibitors. Mim8 is a new medicine that will be used for prevention of bleeds. Mim8 will be injected with a thin needle into the skin. The study will last for about 54-98 weeks, from screening to follow-up visit, In case the participant experiences bleeds, these can be treated with additional haemostatic medicine as agreed with the study doctor.
This trial will enroll patients with severe hemophilia A. Experiments will be run in vitro by spiking patients' blood with different molecules (currently used and theoretically proposed as adjunctive therapy to emicizumab), therefore no more than minimal direct risk to patients is expected. This is a pilot preclinical study.
Factor VIII (FVIII) is a large plasma glycoprotein that participates in blood coagulation. Loss of circulating FVIII activity due to mutations within the F8 gene results in the X-linked, recessive bleeding disorder hemophilia A. The clinical presentation ranges from a mild to severe bleeding phenotype that correlates with the patient's residual plasma FVIII activity level. Current state of the art treatment entails frequent infusion of FVIII protein. However, several limitations remain to treating hemophilia A, which are 1) access to FVIII-replacement products (currently <30% of the world population is treated adequately, access is highly restricted in India), 2) high burden of compliance with treatment protocols particularly in children 3) the expense of FVIII-replacement products, 4) the development of humoral anti-FVIII immune responses that block FVIII activity and limit treatment efficacy and 5) morbidity due to crippling musculoskeletal disease when inadequately treated. Several newer hemostasis agents are being developed but like the recombinant Clotting Factor Concentrate (CFC) from the 1990s, these are also not likely to be made available in India for many years. Currently, the only cure for hemophilia A is orthotopic liver transplantation.
Background: Elderly people with serious haemophilia (PwSH), i.e., with moderate or severe haemophilia, have major comorbidities due to consequences of haemophilia. Also, the comorbidities related to age are added. Despite the existence of numerous studies on the objective health status of elderly PwSH, some limitations may be stated (need to update the results in a more contemporary context, no studies conducted in France, highlighted determinants focused on demographic and clinical factors). On the contrary, the perceived health status of elderly PwSH has been little described. Only two studies specifically addressed the quality of life (QoL) of elderly PwSH. These studies reported an altered QoL in some domains, in comparison with reference values from the general population. However, some limitations may also be stated (need to bring results in a more contemporary context, no studies conducted in France, highlighted determinants focused on clinical factors). Since serious haemophilia is a rare disease, studies are often performed on a small number of subjects. The present project relies on the FranceCoag registry, a unique exhaustive national cohort of PwSH followed over time among whom 612 are elderly PwSH. Objectives: Main objective: to describe the objective and perceived health status of elderly (≥60 y.o.) PwSH from of a French exhaustive national registry, and to compare their health status with that of the French general elderly population. Secondary objective: to identify individual (demographic, clinical, social, psycho-cognitive) and collective characteristics (related to healthcare organisation), associated with the objective and perceived health status of elderly PwSH in France. Materials and Methods: A national, multicentric, observational, cross-sectional study will be conducted. It will be based on the participation of elderly PwSH already included in the FranceCoag registry. Each eligible participant will receive a questionnaire to complete concerning: objective health status; perceived health status (QoL assessed by the WHOQOL-Old questionnaire); demographic data; social data; psycho-cognitive data (anxious symptoms, depressive symptoms, use of coping strategies, time perspective). Therapeutic and clinical data related to haemophilia will be collected via the FranceCoag registry database. Data concerning healthcare organisation will be collected directly from investigators of Haemophilia Treatment Centres. The main analysis will consist in the description and comparison of the health status with reference data from the French general elderly population. Standardisation methods will be used to take into account a potential imbalance between the study population and the reference population, related to age and especially to sex, as haemophilia is a predominantly male disease. The secondary analysis will consist in the identification of potential determinants of the health status. Structural equation models will be performed to take into account the complexity of the relationships between the determinants. Impact of the proposal Better understanding the impact of the disease on patients' experience is essential in a systematic global perspective of health, that aims to care and support the individual not only as a patient but also as a person in his/her environment. This study based on a registry will allow to improve the knowledge by updating literature data on the health status of elderly PwSH, adding elements to the rare literature data on the perceived health status, providing data in the French specific context, and identifying both classical and more original determinants of health status of elderly PwSH. These results will be used to better identify elderly PwSH at high risk of poor health status, to propose recommendations and to set up actions to offer them an adapted support, and to elaborate new versions of public health plans dedicated to haemophilia or to rare diseases.
Hemophilia is a constitutional coagulation disorder responsible for a hemorrhagic phenotype in patients from an early age. Hemarthrosis is one of the most frequent complications in hemophiliacs and leads to the development of severe and early arthropathy, sometimes as early as childhood. To date, there is no curative treatment for these joint disorders and preventive treatments are insufficient to completely prevent joint degradation. Mesenchymal stem cells have been shown to be of therapeutic interest in the management of pathologies such as osteoarthritis and inflammatory arthritis through their anti-inflammatory, regenerative and anti-apoptotic effects. Hemophilic arthropathy is a separate condition at the border of these two diseases Our study aim to show pre-clinical interest of mesenchymal stem cell therapy in hemophilic arthropathy
An Open-Label, Non-Randomized, uncontrolled, single-dose pilot study of VGB-R04 in subjects with Hemophilia B.
Study B7841007 is an open-label extension study to assess the long-term safety, tolerability, and efficacy of prophylaxis treatment with marstacimab in participants who did not require "Early Termination" from the Phase 3 Study B7841005 and from the Phase 3 Study B7841008. Study B7841005: approximately 145 adolescent and adult participants 12 to <75 years of age with severe hemophilia A or moderately severe to severe hemophilia B (defined as FVIII activity <1% or FIX activity ≤2%, respectively) with or without inhibitors are expected to be enrolled in Study B7841005 during which they will receive prophylaxis (defined as treatment by SC injection of marstacimab). Study B7841008: this is an ongoing Phase 3, open-label study in pediatric participants <18 years of age with severe hemophilia A (FVIII Coagulation Factor Activity <1%) or moderately severe to severe hemophilia B (FIX Coagulation Factor Activity ≤2%). A sequential approach will be used in enrolling at least 100 pediatric participants, at least 20 of which will be aged ≥12 to <18 years and at least 80 participants will be aged ≥1 to <12 years. At the start of study B7841008, the dosing and data available in adolescent and adult participants in Study B7841005 supported the initiation of B7841008 study in participants aged ≥12 to <18 years. Subsequently, additional safety and efficacy data from adolescent participants in Study B7841005 became available for benefit/risk assessment in support of dosing participants aged ≥6 to <12 years. Based on the positive benefit/risk assessment conducted by both internal Pfizer review and eDMC review, dosing of the ≥6 to <12 years age group was initiated in June 2023 in B7841008 Study. Data from participants ≥6 years from B7841008 Study and Study B7841005 will support the dosing of participants aged ≥1 to <6 years. All participants will be provided the prefilled pen (PFP) for administration of marstacimab in the study. Use of the prefilled syringe (PFS) will be permitted at the investigator's discretion for those participants who have difficulty with administration of the PFP. Additionally, participants will be provided the PFS for use in this study in countries where the PFS is anticipated to be the only presentation available commercially. An optional, open-label, single arm, substudy using the PFP was completed in the first 23 participants rolled over from Study B7841005 who agreed to participate in the substudy.
This study will test how well a new medicine called concizumab works for participants who have haemophilia A or B with or without inhibitors. The purpose is to show that concizumab can prevent bleeds and is safe to use. Participants will have to inject the study medicine every day under the skin with a pen-injector. The study will last for at least 2 years and up to about 4 years. The length of time the participant will be in the study depends on if the study medicine will be available for purchase in their country.
OrPHEe is a non-interventional, prospective and national study which aim is to record real life data in haemophilia B French patients treated with Idelvion® to confirm the efficacy and safety of this product established in clinical development studies.
This study is investigating how Mim8 works compared to other medicines in people with haemophilia A, who either have inhibitors or do not have inhibitors. Mim8 is a new medicine that will be used for prevention of bleeding episodes. Mim8 works by replacing the function of the missing clotting factor VIII (FVIII). When and how often participants will receive Mim8 is dependent on their previous treatment - but is otherwise decided by chance. Mim8 will be injected into a skinfold on the stomach with a thin needle either once a week or once a month. The study will last 54-124 weeks (12-29 months) depending on how long participants will be followed in run-in before they start treatment and if they continue in the follow period or transfer to an open label extension study. Participants will have 12-17 clinic visits.