View clinical trials related to Haemophilia B.
Filter by:This trial is conducted in Europe and the United States of America. The aim of this trial is to compare the pharmacokinetics (the exposure of the trial drug in the body) of nonacog beta pegol (N9-GP) and ALPROLIX® in patients with haemophilia B.
Elocta (rFVIIIFc) and Alprolix (rFIXFc) are recombinant extended half-life coagulation factor products. The purpose of this non-interventional study is to describe the real-world usage and effectiveness of Elocta and Alprolix in the prophylactic treatment of haemophilia A and B.
This study is conducted in the United States of America (USA). Tha aim of this study is bridging Hemophilia B Experiences, Results and Opportunities into Solutions (B-HERO-S).
Personalized therapy in haemophilia has not been reached yet. Treatment is substitutive and its doses are only based on the levels of deficient factor VIII (for haemophilia A) or IX (for haemophilia B). The bleeding severity is not only related to the factor deficiency but also to levels of other coagulation factors (e.g. factor X, II, AT or TFPI). It's necessary to take them into account in order to individualize treatments; and Thrombin Generation Assay (TGA) with the CAT method (Calibrated Automated Thrombography) is a good way because it measures the result of the coagulation cascade. TGA on Platelet Rich Plasma (PRP) is even closer to physiological conditions than on Platelet Poor Plasma (PPP) because platelet influence is represented. It has already been shown (at least in PPP) that the bleeding tendency in haemophilic patients is usually well correlated to TG. Some TG parameters are used to characterize the individual coagulation phenotype, the most important being the Endogenous Thrombin Potential (ETP) and the Lag Time (LT). A hemorrhagic profile usually provides a longer lag time and / or a lower ETP. However, only few studies tried to determine the influence of each coagulation factor and inhibitor on TG. They were done on Platelet Poor Plasma (PPP) or on lyophilized plasma. So the relation between coagulation factors and the different TG parameters remains to be determined, especially in the haemophilic case. It is possible, experimentally, to find the optimal dose of the factor to be added by measuring TG in samples with different factor VIII or IX concentrations, but this method would be time consuming and expensive, especially because it should be done for each haemophilic patient. A better way consists in using TG numerical models. For a set of initial factor levels they simulate the TG and its associated parameters. It is now essential to validate the existing models, especially in haemophilic cases, in order to see whether they are reliable and can be used in clinical practice afterwards.The objective of this study is to validate thrombin generation numerical models which could predict the factor VIII or IX activity correction to reach a thrombin generation sufficient to avoid bleeding. A comparison between the TG observed in haemophilic patients and the TG predicted by the models is needed to validate the models. In order to define a 'safe' TG i.e. sufficient to avoid bleeding, normal ranges of TG parameters have to be measured.
The objective of this study was to assess the safety and efficacy of Replenine®-VF in children enrolled in the study, under the age of six years, with severe haemophilia B.
The purpose of this study is: - to compare the pharmacokinetics of Replenine®-VF and Replenine® or any other high purity Factor IX concentrate, when given as a bolus dose of 75IU/kg. - to compare the 1st and 2nd pharmacokinetic assessments on Replenine®-VF (conducted 3 months apart) and recovery if patients changes batches. - to evaluate Replenine®-VF in terms of clinical tolerance and safety in patients with severe haemophilia B.
The main objectives of this study were to investigate the safety and efficacy of Replenine®-VF administered in appropriate dosage by bolus infusion to prevent bleeding and achieve haemostasis in subjects with haemophilia B undergoing surgery.
The main objective of the study is to investigate the safety and efficacy of Replenine®-VF administered by continuous infusion in appropriate dosage to prevent bleeding and achieve haemostasis in patients with haemophilia B undergoing major surgery.
This survey is conducted in South America. The purpose is to identify the key psychosocial issues affecting patients with haemophilia.
To compare the first and second recovery assessments on Replenine®-VF and to evaluate recovery of different batches if patients changed batches during the study. To evaluate Replenine®-VF in terms of long-term clinical efficacy, tolerance and safety