View clinical trials related to Hemophilia A.
Filter by:This is a longitudinal, observational study of patients with Hemophilia A or B who are planning to switch to a newly approved coagulation factor replacement product, or who have recently switched factor products. The study will follow each patient for up to 1 year. Patients will be recruited at Hemophilia Treatment Centers (HTC) which are ATHN-affiliates. The primary outcome being studied is the development of inhibitor (i.e., antibodies to factor) at 1 year or 50 exposure days, whichever comes first. The study will be conducted at approximately 30 HTCs, with a planned enrollment of 600 patients.The entire study duration is projected to be approximately 6 years. In addition, optional substudies will be included for some products, as "Product-Specific Modules". These will be questionnaires to collect data for subjects receiving selected Factor products. For example, subjects receiving Kovaltry will be approached to participate in the 'Kovaltry Product-Specific Module'; subjects receiving Adynovate will be approached to participate in the 'Adynovate Product-Specific Module'. Questions will be related to product use, perceptions of product use, and other post-marketing consumer data.
This study is conducted globally. This study describes pharmacogenetic testing of saliva samples from patients who participated in the NN1731-3562 trial (adept™2) (NCT01392547). The objective is to determine the HLA (human leukocyte antigen) type and polymorphisms in the FVII gene in patients previously exposed to rFVIIa analogue.
Haemophilia is a rare and serious congenital defect of blood coagulation due to a genetic mutation on a sexual chromosome. It affects quasi-essentially the men and it is responsible for bleeding. There are two types of haemophilia: Haemophilia A, (85 % of cases), due to a factor VIII (FVIII) deficiency and Haemophilia B (15 % of cases) due to factor IX (FIX) deficiency. According to the intensity of the defect, there are three forms of haemophilia: severe (FVIII or FIX lower than 1 %), moderate (factor level between 1 and 5 %), minor (factor level between 5 and 40 %). For a same level of factor VIII or IX, hemorrhagic manifestations are variable from one patient to the other. Moreover, several studies showed that haemophilic B patients bleed less and consume fewer anti-hemophilic concentrate that haemophilic A patients. The main inhibitors of the coagulation are antithrombin, Protein C-Protein S-Thrombomodulin system, and tissue factor pathway inhibitor (TFPI). TFPI is the specific and exclusive inhibitor of tissue factor pathway that is the main way by which plasmatic coagulation starts. TFPI is a potent direct inhibitor of factor Xa and Xa-dependent inhibitor of the VIIa-Tissue Factor (TF) complex. In hemophilic patient, the production of Xa by the amplification pathway being strongly altered because of factor VIII or IX deficiency, thrombin generation (via Xa) comes exclusively from TFPI regulated tissue factor pathway. We can thus say that if haemophilic patients bleed, it is also because of the presence of TFPI that inhibits at the same time Xa and the complex TF-VIIa as soon as factor Xa is generated.
Prospective, interventional study of pharmacokinetic (PK)-focused FVIII dosing discussions delivered as part of a patient education package. The study will capture severe haemophilia A patient reported outcome measures before and after PK-focused dosing discussions, including a standardised patient education package, that include personalised PK-guided dosing suggestions from a computational predictive device (myPKFiT®). The pragmatic study design recognises the CE marked myPKFiT® device is being implemented into routine care nationally and consequently only requires a single additional clinic visit for the purpose of consenting.
The Swiss Hemophilia Registry will collect data on the prophylactic and therapeutic use of factor concentrates in patients with hemophilia and other severe bleeding disorders in Switzerland.
The purpose of this study is to determine how female hemophilia A carriers respond to a medication called DDAVP (Desmopressin).
The primary objective of the study is to compare the pharmacokinetic (PK) of recombinant coagulation factor VIII Fc fusion protein (rFVIIIFc) manufactured at the current scale of 2000 L (2K) to the PK of rFVIIIFc manufactured at the 15,000 L (15K) scale in previously treated participants with severe hemophilia A. The secondary objectives are: to characterize the PK of rFVIIIFc manufactured at the 15K scale at the 15K baseline and after 13 weeks of treatment; to characterize the PK of rFVIIIFc manufactured at the 15K scale at 1000 IU/vial and 6000 IU/vial strengths; and to evaluate the safety of rFVIIIFc manufactured at the 15K scale.
An open-label, single-arm, post- authorization pragmatic clinical trial on the safety and efficacy of Xyntha (Moroctocog-alfa (AF-CC), Recombinant FVIII) in subjects with hemophilia A in usual care settings in China for approximately 6 months or or approximately 50 exposure days whichever occurs first
This trial is conducted globally. The aim of this trial is to investigate safety, pharmacokinetics (the exposure of the trial drug in the body) and pharmacodynamics (the effect of the investigated drug on the body) of concizumab administered subcutaneously to haemophilia A subjects.
The purpose of this study is to investigate the pharmacokinetics (PK), efficacy, and safety of rVIIa-FP (CSL689). The study will enroll approximately 54 male subjects, 12 to 65 years of age, with hemophilia types A or B who have developed inhibitors to FVIII or FIX. The study consists of 3 sequential parts (Parts 1, 2, 3): The purpose of Part 1 (PK part) is to evaluate the PK of a single treatment of CSL689 (low dose or high dose) and compare with the PK of a single treatment of Eptacog alfa (low dose or high dose). In Part 1, CSL689 and Eptacog alfa will be given by the doctor at the study center. The purpose of Part 2 (Dose-evaluation part) is to identify which of the 2 tested dose levels of CSL689 shows the best efficacy and safety in stopping acute bleeding events (this dose will be called the "population best dose"). The purpose of the final Part 3 (Repeated-dose part) is to confirm the efficacy and safety of the "population best dose" identified in Part 2. In Parts 2 and 3, subjects will self-administer a specified number of CSL689 infusions at home on-demand (ie, when a bleeding event occurs), will keep an electronic diary, and will visit the center at monthly intervals. This study is expected to last for up to 16 months for the subjects participating in all 3 parts, and up to 9 months for the subjects participating in Part 3 only.