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Iorio A, James P, Ma A, Srivastava A. Hemostatic management of von Willebrand disease during childbirth with a plasma-derived von Willebrand factor/factor VIII concentrate. J Thromb Haemost 2024; 22:2739-2744. [PMID: 38950781 DOI: 10.1016/j.jtha.2024.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/27/2024] [Accepted: 06/12/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Females with von Willebrand disease (VWD) do not show the same increases in von Willebrand factor and factor (F)VIII levels during pregnancy as females without VWD and are at higher risk of excessive bleeding associated with childbirth. Data on hemostatic management for childbirth in VWD patients are limited. OBJECTIVES To evaluate the dosing, efficacy, and safety of plasma-derived von Willebrand factor/FVIII (wilate) for prevention of excessive bleeding associated with childbirth in females with any type of VWD. METHODS Data for females with VWD who received wilate for hemostatic coverage for childbirth during 2 prospective clinical studies were analyzed. RESULTS Ten females with VWD and a mean age at enrolment of 29.6 years were treated with wilate to prevent excessive bleeding associated with childbirth. Two patients had type 1, 4 had type 2 (2 2A, 1 2B, and 1 2M), and 4 had type 3 VWD. Of the 10 deliveries, 5 were by cesarean section. Patients received a mean of 9.5 infusions of wilate over 6.8 exposure days, with a mean total dose of 234 IU/kg per delivery and 25 IU/kg per infusion. Hemostatic management for all deliveries was rated excellent or good, with no excessive bleeding during delivery and no postpartum bleeding during the period of wilate treatment in any patient. Two patients experienced 8 possible or probable treatment-related adverse events; all were mild or moderate and resolved. No thromboembolic events were observed. CONCLUSION The results of this case series indicate that wilate provided effective hemostatic cover for childbirth in females with VWD during delivery and postpartum.
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Affiliation(s)
- Alfonso Iorio
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
| | - Paula James
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Alice Ma
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Alok Srivastava
- Department of Haematology, Christian Medical College Vellore, Ranipet Campus, Tamil Nadu, India
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Kuppens GZL, Fischer K, van Galen KPM, van Beers EJ, Van der Valk PR, Kremer Hovinga ICL, van Vulpen LFD, Schutgens REG. Efficacy of a 1:1 ratio VWF/FVIII concentrate in patients with von Willebrand disease. Haemophilia 2024. [PMID: 39010315 DOI: 10.1111/hae.15079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/06/2024] [Accepted: 06/30/2024] [Indexed: 07/17/2024]
Abstract
INTRODUCTION Patients with von Willebrand disease (VWD) require administration of von Willebrand factor (VWF) concentrates peri-operatively. Concerns about FVIII accumulation after repetitive injections of a 1:1 ratio VWF/FVIII clotting factor concentrate (CFC) led this study to explore the recovery and FVIII accumulation over time. METHODS This monocentre study examined patients with VWD receiving perioperative 1:1 ratio CFC infusions. CFC dosing was based on body weight and endogenous VWF/FVIII activity. FVIII and VWF activity was monitored at T0 (baseline), T1 (15 min postinfusion), and trough levels at T2-T6 (24-120 h). RESULTS We included 125 patients, undergoing 125 procedures (63 major surgeries, 62 minor), with a median of two CFC infusions (IQR 1-3). With a mean administered dose of 35.7 IU/kg CFC, recovery rates of FVIII and VWF were 2.6 IU/dL per IU/kg and 2.4 IU/dL per IU/kg, respectively. Mean FVIII levels at T0 were 62 (SD 51.9), T1: 164 (SD 80.4), T2: 155 (SD 62.8), T3: 162 (SD 59.8), T4: 124 (SD 78.4), and T5: 120 (SD 65.3) IU/dL. Mean VWF activity levels at T0 were 29 (SD 25.0), T1: 133 (SD 43.7), T2: 92 (SD 37.2), and T3: 86 (SD 37.5) IU/dL. Subgroup analysis in 47 patients with more than three infusions, showed no accumulation of mean FVIII levels. CONCLUSION This perioperative study demonstrated excellent FVIII and VWF recovery of a 1:1 ratio VWF product in patients with VWD. Stable FVIII and VWF activity levels were observed after repeated infusions, without accumulation. Most major surgeries required only three CFC infusions.
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Affiliation(s)
- Geoffrey Z L Kuppens
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Kathelijn Fischer
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Karin P M van Galen
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Eduard J van Beers
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Paul R Van der Valk
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Idske C L Kremer Hovinga
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Lize F D van Vulpen
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Roger E G Schutgens
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
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Horvais V, Beurrier P, Cussac V, Pan-Petesch B, Schirr-Bonnans S, Rose J, Bayart S, Ternisien C, Fouassier M, Sigaud M, Babuty A, Drillaud N, Guillet B, Trossaërt M. Key Drivers of Coagulation Factor Use in Von Willebrand Disease During Hospitalization: An Overview of the French BERHLINGO Cohort. Clin Drug Investig 2024; 44:35-49. [PMID: 38036930 DOI: 10.1007/s40261-023-01323-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Von Willebrand disease (VWD) is the most common inherited bleeding disorder. However, studies of hospitalisation patterns with replacement treatment are scarce. OBJECTIVES The aim of this study was to investigate the current therapeutic management of VWD and determine the key drivers of coagulation factor uses in patients during hospitalisation. METHODS Hopscotch-WILL was a multi-centric retrospective study conducted over a 48-month period in any patients with VWD. The data were collected from the BERHLINGO Research Database and the French Hospital database. RESULTS A total of 988 patients were included; 153 patients (15%) were hospitalised during 293 stays requiring treatment with von Willebrand factor (VWF) concentrates-pure or in association with Factor VIII (FVIII). Their median basal concentrations of VWF and FVIII were significantly lower than in untreated patients: VWF antigen < 30 IU/dL, VWF activity < 20 IU/dL and FVIII:C < 40 IU/dL. The median (interquartile range) concentrate consumption was similar between highly purified VWF or VWF combined with FVIII (72 [110] vs 57 [89] IU/kg/stay, p = 0.154). The use of VWF was highly heterogeneous by VWD type; type 3 had a particularly high impact on VWF consumption in non-surgical situations. The main admissions were for ear/nose/throat, hepato-gastroenterology, and trauma/orthopaedic conditions, besides gynaecological-obstetric causes in women. CONCLUSIONS The use of VWF concentrates is mostly influenced by low basal levels of VWF and FVIII, but also by VWD type or the cause for hospitalisation. These results could inform future studies of newly released recombinant VWF.
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Affiliation(s)
- Valérie Horvais
- Nantes Université, CHU Nantes, Unité d'Investigation Clinique 17, 44000, Nantes, France.
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France.
| | - Philippe Beurrier
- CHU Angers, Centre de Traitement des Maladies Hémorragiques Constitutionnelles, 49000, Angers, France
| | - Vincent Cussac
- CH Le Mans, Centre de Traitement des Maladies Hémorragiques Constitutionnelles, 72000, Le Mans, France
| | | | - Solène Schirr-Bonnans
- Nantes Université, CHU Nantes, Service Evaluation Economique et Développement des Produits de Santé, 44000, Nantes, France
| | - Johann Rose
- CH Le Mans, Centre de Traitement des Maladies Hémorragiques Constitutionnelles, 72000, Le Mans, France
| | - Sophie Bayart
- Rennes Université, CHU Rennes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 35000, Rennes, France
| | - Catherine Ternisien
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France
| | - Marc Fouassier
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France
| | - Marianne Sigaud
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France
| | - Antoine Babuty
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France
| | - Nicolas Drillaud
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France
| | - Benoît Guillet
- Rennes Université, CHU Rennes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 35000, Rennes, France
- Inserm, EHESP, IRSET (Institut de recherche en santé, environnement et travail)-UMR_S 1085, F-35000, Rennes, France
| | - Marc Trossaërt
- Nantes Université, CHU Nantes, Centre de Ressources et de Compétences des Maladies Hémorragiques Constitutionnelles, 44000, Nantes, France
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Franchini M, Focosi D. Targeting von Willebrand disease: the current status and future directions of management therapies. Expert Rev Hematol 2023; 16:871-878. [PMID: 37800892 DOI: 10.1080/17474086.2023.2268282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/04/2023] [Indexed: 10/07/2023]
Abstract
INTRODUCTION von Willebrand disease (VWD) is the commonest inherited bleeding disorder, and is typically caused by deficits in the quantity or quality of von Willebrand factor (VWF). AREAS COVERED This review describes the main clinical, diagnostic, and therapeutic aspects of VWD, with particular attention to its management. In addition, standard and avant-garde replacement therapies based on the use of VWF are discussed. EXPERT OPINION The goal of treatment for VWD is to reverse the double hemostatic defect resulting from the abnormal or reduced expression of VWF and the concomitant factor VIII (FVIII) deficiency. Treatment consists of managing any bleeds and both short-term prophylaxis (i.e. for surgery or invasive procedures) and long-term prophylaxis. While desmopressin is suitable for most patients with type 1 VWD, VWF/FVIII concentrates are the treatment of choice for the other types of VWD. Beside plasma-derived VWF/FVIII concentrates, whose safety and efficacy have been demonstrated by several clinical trials, products containing only VWF, obtained by plasma fractionation and recombinant DNA technology, have become available and marketed more recently. The clinical use of these VWF-only products is particularly attractive in the setting of surgery and long-term prophylaxis, such as the prevention of recurrent gastrointestinal bleeding in cases of angiodysplasia.
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Affiliation(s)
- Massimo Franchini
- Department of Transfusion Medicine and Hematology, Carlo Poma Hospital, Mantova, Italy
| | - Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, Pisa, Italy
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Bauer A, Friberg-Hietala S, Smania G, Wolfsegger M. Pharmacokinetic-Pharmacodynamic Comparison of Recombinant and Plasma-Derived von Willebrand Factor in Patients with von Willebrand Disease Type 3. J Blood Med 2023; 14:399-411. [PMID: 37332615 PMCID: PMC10276593 DOI: 10.2147/jbm.s395845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/26/2023] [Indexed: 06/20/2023] Open
Abstract
Background Recombinant von Willebrand factor (rVWF, vonicog alfa, Vonvendi/Veyvondi, Takeda Pharmaceuticals USA, Lexington, MA) and several plasma-derived VWF/factor VIII (pdVWF/FVIII) concentrates are available for treating bleeding episodes in patients with von Willebrand disease (VWD). Purpose To develop population pharmacokinetic (PK)/pharmacodynamic (PD) models that describe VWF:ristocetin cofactor (VWF:RCo) activity and its relationship with FVIII activity (FVIII:C) over time following intravenous administration of either rVWF or a pdVWF/FVIII concentrate (VWF:RCo/FVIII:C 2.4:1) in patients with VWD; to use the final PK/PD models for an in silico comparison of rVWF and pdVWF/FVIII. Methods The population PK model for rVWF was based on data from four clinical studies in which rVWF was administered to adult patients with VWD type 1, 2 or 3 (phase 1: NCT00816660; phase 3: NCT01410227 and NCT02283268) or severe hemophilia A (phase 1: EudraCT 2011-004314-42). The PK and PK/PD models for pdVWF/FVIII were based on data from the phase 1 study (NCT00816660) in patients with type 3 VWD who received either rVWF plus recombinant FVIII (rFVIII, octocog alfa, ADVATE®, Takeda Pharmaceuticals USA, Lexington, MA, USA) or pdVWF/FVIII. Results There was a marked difference in clearance following rVWF administration compared with pdVWF/FVIII in type 3 VWD, leading to a ~1.75 longer mean residence time (ie, persistence of VWF:RCo activity in the body) and half-life for rVWF versus pdVWF/FVIII. Simulations showed that following repeated administration of rVWF (50 IU/kg), a FVIII:C activity of >40 IU/dL can be maintained for the full 72 h dosing interval. Conclusion The slower elimination of VWF:RCo following rVWF administration results in a prolonged effect on FVIII turnover compared with pdVWF/FVIII administration.
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Affiliation(s)
- Alexander Bauer
- Statistical and Quantitative Sciences, Baxalta Innovations GmbH, a Takeda Company, Vienna, Austria
| | | | | | - Martin Wolfsegger
- Statistical and Quantitative Sciences, Baxalta Innovations GmbH, a Takeda Company, Vienna, Austria
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6
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Rugeri L, Benoit R, Desage S, Dargaud Y. Effectiveness of individualized management using WILFACTIN® in patients with von Willebrand disease during surgical procedures: A single-center study. Thromb Res 2022; 220:88-90. [DOI: 10.1016/j.thromres.2022.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/25/2022] [Accepted: 09/29/2022] [Indexed: 11/17/2022]
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7
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Iizuka K, Morishita S, Nishizaki Y, Iizuka Y, Iriyama N, Ochiai T, Yanagisawa N, Yasuda H, Ando J, Gotoh A, Takei M, Hatta Y, Nakamura H, Nakayama T, Komatsu N. Von Willebrand factor activity levels are influenced by driver mutation status in polycythemia vera and essential thrombocythemia patients with well-controlled platelet counts. Eur J Haematol Suppl 2022; 109:779-786. [PMID: 36130908 DOI: 10.1111/ejh.13866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 01/19/2023]
Abstract
Von Willebrand factor ristocetin cofactor (VWF activity) and platelet count (PLT) are negatively correlated in patients with polycythemia vera (PV) and essential thrombocythemia (ET). However, VWF activity does not always normalize upon controlling PLT in those patients. To address this issue, we investigated the correlation between VWF activity and PLT in PV and ET patients. The negative correlation between VWF activity and PLT was stronger in calreticulin mutation-positive (CALR+) ET than in Janus kinase 2 mutation-positive (JAK2+) PV or ET groups. When PLT were maintained at a certain level (<600 × 109 /L), low VWF activity (<50%) was more frequently observed in JAK2+ PV patients than in JAK2+ ET (p=0.013) or CALR+ ET (p=0.013) groups, and in PV and ET patients with ≥50% JAK2+ allele burden than in those with allele burden <50% (p=0.015). High VWF activity (>150%) was more frequent in the JAK2+ ET group than in the CALR+ ET group (p=0.005), and often associated with vasomotor symptoms (p=0.002). This study suggests that some patients with JAK2+ PV or ET have VWF activity outside the standard range even with well-controlled PLT, and that the measurement of VWF activity is useful for assessing the risk of thrombosis and hemorrhage.
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Affiliation(s)
- Kazuhide Iizuka
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.,Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan.,Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan.,Internal Medicine, Atami Tokoro Memorial Hospital, Shizuoka, Japan
| | - Soji Morishita
- Laboratory for the development of therapies against MPN, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Advanced Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuji Nishizaki
- Medical Technology Innovation Center, Juntendo University, Tokyo, Japan
| | - Yoshikazu Iizuka
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Noriyoshi Iriyama
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tomonori Ochiai
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | | | - Hajime Yasuda
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | - Jun Ando
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan.,Department of Cell Therapy and Transfusion Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihiko Gotoh
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Masami Takei
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yoshihiro Hatta
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Hideki Nakamura
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Tomohiro Nakayama
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Norio Komatsu
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan.,Laboratory for the development of therapies against MPN, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Advanced Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Pharmaessentia Japan KK, Tokyo, Japan
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8
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Johnsen JM, MacKinnon HJ. JTH in Clinic - Obstetric bleeding: VWD and other inherited bleeding disorders. J Thromb Haemost 2022; 20:1568-1575. [PMID: 35621921 DOI: 10.1111/jth.15770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 01/19/2023]
Abstract
Individuals with inherited bleeding disorders (IBDs) have higher bleeding risk during pregnancy, childbirth, and the postpartum period. Clinical management requires recognition of the IBD as high risk for postpartum hemorrhage and a personalized multidisciplinary approach that includes the patient in decision making. When the fetus is known or at risk to inherit a bleeding disorder, fetal and neonatal bleeding risk also need to be considered. In pregnant IBD patients, it is common for providers to need to make decisions in the absence of high level of certainty evidence. We here present the case of a pregnant von Willebrand disease patient that reached multiple decision points where there is currently clinical ambiguity due to a lack of high level of certainty evidence. For each stage of her care, from diagnosis to the postpartum period, we discuss current literature and describe our approach. This is followed by a brief overview of considerations in other IBDs and pregnancy.
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Affiliation(s)
- Jill M Johnsen
- Bloodworks Research Institute, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
- Washington Center for Bleeding Disorders, Seattle, Washington, USA
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Berntorp E, Trakymienė SS, Federici AB, Holstein K, Corrales‐Medina FF, Pierce GF, Srivastava A, Prondzinski MVD, Johnsen JM, Zupan IP, Halimeh S, Nummi V, Roberts JC. Sixth Åland Island Conference on von Willebrand disease. Haemophilia 2022; 28 Suppl 5:3-15. [PMID: 35861919 PMCID: PMC9543245 DOI: 10.1111/hae.14495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/04/2022] [Accepted: 01/04/2022] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The sixth Åland Islands Conference on von Willebrand disease (VWD) on the Åland Islands, Finland, was held from 20 to 22 September 2018. AIM The meeting brought together experts in the field of VWD from around the world to share the latest advances and knowledge in VWD. RESULTS AND DISCUSSION The topics covered both clinical aspects of disease management, and biochemical and laboratory insights into the disease. The clinical topics discussed included epidemiology, diagnosis and treatment of VWD in different countries, management of children with VWD, bleeding control during surgery, specific considerations for the management of type 3 VWD and bleeding control in women with VWD. Current approaches to the management of acquired von Willebrand syndrome were also discussed. Despite significant advances in the understanding and therapeutic options for VWD, there remain many challenges to be overcome in order to optimise patient care. In comparison with haemophilia A, there are very few registries of VWD patients, which would be a valuable source of data on the condition and its management. VWD is still underdiagnosed, and many patients suffer recurrent or severe bleeding that could be prevented. Awareness of VWD among healthcare practitioners, including non-haematologists, should be improved to allow timely diagnosis and intervention. Diagnosis remains challenging, and the development of fast, simple assays may help to facilitate accurate and rapid diagnosis of VWD.
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Affiliation(s)
- Erik Berntorp
- Centre for Thrombosis and HaemostasisSkåne University HospitalLund UniversityMalmöSweden
| | - Sonata S. Trakymienė
- Clinic of Children's DiseasesVilnius University Hospital Santaros KlinikosVilnius UniversityVilniusLithuania
| | - Augusto B. Federici
- Department of Oncology and Oncologic HaematologyHaematology and Transfusion MedicineL. Sacco University HospitalUniversity of MilanMilanItaly
| | - Katharina Holstein
- Department of Hematology and OncologyUniversity Medical Centre Hamburg‐EppendorfHamburgGermany
| | - Fernando F. Corrales‐Medina
- Department of Pediatrics, Division of Pediatric Hematology‐OncologyUniversity of Miami ‐ Miller School of Medicine and University of Miami ‐ Hemophilia Treatment CenterMiamiFloridaUSA
| | | | - Alok Srivastava
- Department of HaematologyChristian Medical CollegeVelloreIndia
| | | | - Jill M. Johnsen
- Research Institute, BloodworksSeattleWashingtonUSA
- Department of MedicineUniversity of WashingtonSeattleWashingtonUSA
| | - Irena P. Zupan
- Department of HaematologyUniversity Medical Centre LjubljanaLjubljanaSlovenia
| | | | - Vuokko Nummi
- Coagulation Disorders Unit, Helsinki University HospitalHelsinkiFinland
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10
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Brignardello-Petersen R, El Alayli A, Husainat N, Kalot M, Shahid S, Aljabirii Y, Britt A, Alturkmani H, El-Khechen H, Motaghi S, Roller J, Dimassi A, Abughanimeh O, Madoukh B, Arapshian A, Grow JM, Kouides P, Laffan M, Leebeek FWG, O’Brien SH, Tosetto A, James PD, Connell NT, Flood V, Mustafa RA. Surgical management of patients with von Willebrand disease: summary of 2 systematic reviews of the literature. Blood Adv 2022; 6:121-128. [PMID: 34654053 PMCID: PMC8753200 DOI: 10.1182/bloodadvances.2021005666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/20/2021] [Indexed: 01/19/2023] Open
Abstract
von Willebrand disease (VWD) is the most common inherited bleeding disorder. The management of patients with VWD who are undergoing surgeries is crucial to prevent bleeding complications. We systematically summarized the evidence on the management of patients with VWD who are undergoing major and minor surgeries to support the development of practice guidelines. We searched Medline and EMBASE from inception through October 2019 for randomized clinical trials (RCTs), comparative observational studies, and case series that compared maintaining factor VIII (FVIII) levels or von Willebrand factor (VWF) levels at >0.50 IU/mL for at least 3 days in patients undergoing major surgery, and those with options for perioperative management of patients undergoing minor surgery. Two authors screened and abstracted data and assessed the risk of bias. We conducted meta-analyses when possible. We evaluated the certainty of the evidence using the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) approach. We included 7 case series for major surgeries and 2 RCTs and 12 case series for minor surgeries. Very-low-certainty evidence showed that maintaining FVIII levels or VWF levels of >0.50 IU/mL for at least 3 consecutive days showed excellent hemostatic efficacy (as labeled by the researchers) after 74% to 100% of major surgeries. Low- to very-low-certainty evidence showed that prescribing tranexamic acid and increasing VWF levels to 0.50 IU/mL resulted in fewer bleeding complications after minor procedures compared with increasing VWF levels to 0.50 IU/mL alone. Given the low-quality evidence for guiding management decisions, a shared-decision model leading to individualized therapy plans will be important in patients with VWD who are undergoing surgical and invasive procedures.
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Affiliation(s)
| | - Abdallah El Alayli
- Outcomes and Implementation Research Unit, Department of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, KS
| | - Nedaa Husainat
- Department of Internal Medicine, St. Mary’s Hospital, St. Louis, MO
| | - Mohamad Kalot
- Department of Internal Medicine, State University of New York at Buffalo, Buffalo, NY
| | - Shaneela Shahid
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | | | - Alec Britt
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
| | - Hani Alturkmani
- Department of Cardiovascular Medicine, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Hussein El-Khechen
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Shahrzad Motaghi
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - John Roller
- Department of Hematology/Oncology, University of Kansas Medical Center, Kansas City, KS
| | - Ahmad Dimassi
- Department of Internal Medicine, Lebanese American University Medical Center, Ashrafiye, Beirut, Lebanon
| | - Omar Abughanimeh
- Division of Oncology and Hematology, University of Nebraska Medical Center-Fred & Pamela Buffett Cancer Center, Omaha, NE
| | - Bader Madoukh
- Department of Internal Medicine, State University of New York-Upstate Medical University, Syracuse, NY
| | | | - Jean M. Grow
- Department of Strategic Communication, Marquette University, Milwaukee, WI
| | - Peter Kouides
- University of Rochester, Mary M. Gooley Hemophilia Treatment Center, Rochester, NY
| | - Michael Laffan
- Centre for Haematology, Imperial College London, London, United Kingdom
| | - Frank W. G. Leebeek
- Department of Hematology, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Sarah H. O’Brien
- Division of Hematology/Oncology, Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH
| | - Alberto Tosetto
- Hematology Department, Hemophilia and Thrombosis Center, S. Bortolo Hospital, Vicenza, Italy
| | - Paula D. James
- Department of Medicine, Queen’s University, Kingston, ON, Canada
| | - Nathan T. Connell
- Hematology Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Veronica Flood
- Department of Pediatrics, Medical College of Wisconsin, Wauwatosa, WI; and
- Versiti Blood Research Institute, Milwaukee, WI
| | - Reem A. Mustafa
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- Outcomes and Implementation Research Unit, Department of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, KS
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11
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Franchini M, Seidizadeh O, Mannucci PM. Prophylactic management of patients with von Willebrand disease. Ther Adv Hematol 2022; 12:20406207211064064. [PMID: 34987743 PMCID: PMC8721401 DOI: 10.1177/20406207211064064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/15/2021] [Indexed: 01/19/2023] Open
Abstract
Von Willebrand disease, the most common inherited bleeding disorder that affects both males and females, is due to quantitative or qualitative defects of the multimeric glycoprotein von Willebrand factor, which cause mucous membrane bleeding but also soft tissue bleeding owing to the secondary deficiency of factor VIII. The aim of treatment is to correct this dual defect of hemostasis. In addition to the episodic management of bleeding episodes, therapy includes their short- or long-term prevention. Short-term prophylaxis is mainly warranted in order to provide effective hemostatic coverage to patients undergoing surgery or invasive procedures and to affected women at the time of delivery or during menstruations associated with excessive bleeding. The aim of long-term prophylaxis is to prevent bleeding in particular categories of patients at increased risk of frequent and spontaneous bleeding in the joints, nose, and gastrointestinal tract.
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Affiliation(s)
- Massimo Franchini
- Department of Hematology and Transfusion Medicine, Carlo Poma Hospital, 46100 Mantova, Italy
| | - Omid Seidizadeh
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico and University of Milan, Milan, Italy
| | - Pier Mannuccio Mannucci
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico and University of Milan, Milan, Italy
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12
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Sholzberg M, Khair K, Yaish H, Rodgers G, Cruz MS, Mejía CM, Čermáková Z, Matino D, Teitel J, Barrie A, Werner S, Prondzinski MVD. Real-World Data on the Effectiveness and Safety of wilate for the Treatment of von Willebrand Disease. ACTA ACUST UNITED AC 2021; 5:e264-e272. [PMID: 34235395 PMCID: PMC8255103 DOI: 10.1055/s-0041-1730283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 03/17/2021] [Indexed: 01/19/2023]
Abstract
Background
The efficacy and safety of wilate (human von Willebrand factor/coagulation factor VIII) in patients with von Willebrand disease (VWD) has been demonstrated in clinical trials. Here, we present real-world data on the use of wilate for the routine care of patients with VWD.
Objectives
The objectives of this observational, prospective, phase 4 study were to evaluate the safety, tolerability, and effectiveness of wilate in on-demand treatment of bleeding episodes (BEs), long-term prophylaxis, and surgical prophylaxis among patients with any type of VWD.
Methods
Patients were enrolled at 31 study centers in 11 countries and followed for up to 2 years. Safety endpoints included adverse drug reactions (ADRs) and drug tolerability. Effectiveness was assessed using annualized bleeding rates (ABRs) during prophylaxis and predefined criteria for the treatment of BEs and surgical prophylaxis.
Results
A total of 111 patients (76 [68%] female) including 41 (37%) children were treated with wilate. Twenty-five patients received prophylaxis, 29 on-demand treatment, and 62 surgical prophylaxis. Tolerability was rated by patients as “excellent” for 96.2% of 6,497 infusions. No unexpected ADRs or thrombotic events were reported. Median ABR during prophylaxis was 1.9. Effectiveness was assessed as “excellent” or “good” by patients and investigators for 100% of BEs treated on-demand, 98% (patient rating) and 99% (investigator rating) of breakthrough BEs, and 99% of surgical procedures (investigator rating).
Conclusion
wilate was safe, well tolerated, and effective for the prevention and treatment of bleeding in pediatric and adult VWD patients in a real-world setting.
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Affiliation(s)
- Michelle Sholzberg
- Departments of Medicine and Laboratory Medicine & Pathobiology, St. Michael's Hospital, Li Ka Shing Knowledge Institute, University of Toronto, Toronto, Canada.,Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Kate Khair
- Research in Children's Health, Illness and Disability (ORCHID), NIHR Biomedical Research Centre, Great Ormond Street Hospital for Children, London, United Kingdom
| | - Hassan Yaish
- University of Utah School of Medicine, Salt Lake City, Utah, United States
| | - George Rodgers
- University of Utah School of Medicine, Salt Lake City, Utah, United States
| | | | | | - Zuzana Čermáková
- Blood Center, University Hospital Ostrava, Ostrava-Poruba, Czech Republic
| | - Davide Matino
- McMaster University Medical Center, Hamilton, Ontario, Canada
| | - Jerome Teitel
- Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Alpha Barrie
- Research in Children's Health, Illness and Disability (ORCHID), NIHR Biomedical Research Centre, Great Ormond Street Hospital for Children, London, United Kingdom
| | - Sylvia Werner
- Octapharma USA, Inc., Paramus, New Jersey, United States
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13
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Population pharmacokinetics of the von Willebrand factor-factor VIII interaction in patients with von Willebrand disease. Blood Adv 2021; 5:1513-1522. [PMID: 33683340 DOI: 10.1182/bloodadvances.2020003891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/21/2021] [Indexed: 01/19/2023] Open
Abstract
Recent studies have reported that patients with von Willebrand disease treated perioperatively with a von Willebrand factor (VWF)/factor VIII (FVIII) concentrate with a ratio of 2.4:1 (Humate P/Haemate P) often present with VWF and/or FVIII levels outside of prespecified target levels necessary to prevent bleeding. Pharmacokinetic (PK)-guided dosing may resolve this problem. As clinical guidelines increasingly recommend aiming for certain target levels of both VWF and FVIII, application of an integrated population PK model describing both VWF activity (VWF:Act) and FVIII levels may improve dosing and quality of care. In total, 695 VWF:Act and 894 FVIII level measurements from 118 patients (174 surgeries) who were treated perioperatively with the VWF/FVIII concentrate were used to develop this population PK model using nonlinear mixed-effects modeling. VWF:Act and FVIII levels were analyzed simultaneously using a turnover model. The protective effect of VWF:Act on FVIII clearance was described with an inhibitory maximum effect function. An average perioperative VWF:Act level of 1.23 IU/mL decreased FVIII clearance from 460 mL/h to 264 mL/h, and increased FVIII half-life from 6.6 to 11.4 hours. Clearly, in the presence of VWF, FVIII clearance decreased with a concomitant increase of FVIII half-life, clarifying the higher FVIII levels observed after repetitive dosing with this concentrate. VWF:Act and FVIII levels during perioperative treatment were described adequately by this newly developed integrated population PK model. Clinical application of this model may facilitate more accurate targeting of VWF:Act and FVIII levels during perioperative treatment with this specific VWF/FVIII concentrate (Humate P/Haemate P).
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14
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Desprez D, Drillaud N, Flaujac C, Volot F, Pan-Petesch B, Beurrier P, Cussac V, Feugeas O, Pailler Y, Callegarin A, Trossaërt M, de Raucourt E. Efficacy and safety of a recombinant Von Willebrand Factor treatment in patients with inherited Von Willebrand Disease requiring surgical procedures. Haemophilia 2021; 27:270-276. [PMID: 33550648 DOI: 10.1111/hae.14242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Von Willebrand Disease is a common inherited haemorrhagic disorder due to a deficiency of Von Willebrand Factor (VWF). In case of surgical procedures in patients who are not responsive or have contraindications to desmopressin, replacement therapy with VWF concentrates is indicated. Until recently, only plasma-derived VWF concentrates were available. A new recombinant VWF (rVWF) concentrate that contains no Factor VIII (FVIII) but a high amount of high molecular weight VWF multimers has been available in France since 2018. AIM Describe real-world experience of using rVWF in surgical procedures. METHODS Sixty-three surgeries for 55 patients were retrospectively analysed in 7 French haemostasis centres. RESULTS During minor surgeries, the median (range) number of infusions was 1 (1-8) with a preoperative loading dose of 35 (19-56) rVWF IU/kg and a total median dose of 37.5 IU (12-288). During major surgeries, the median (range) number of infusions was only 3 (1-14) with a median preoperative loading dose of 36 IU (12-51) rVWF IU/kg, and a total median dose of 108 IU (22-340) rVWF IU/kg. The overall clinical efficacy was qualified as excellent/good in 61 of the procedures (97%), moderate in 1 (1.5%) and poor in 1 (1.5%). There was no accumulation of VWF or FVIII during postoperative monitoring. No thromboembolic events, anti-VWF antibodies or adverse events were reported. CONCLUSION This French 'real-world' experience shows that a few infusions and low doses of rVWF provided effective prevention of bleeding in major and minor surgeries in inherited VWD, with no clinically significant safety concerns.
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Affiliation(s)
- Dominique Desprez
- Department of Haemostasis, Strasbourg University Hospital, Strasbourg, France
| | - Nicolas Drillaud
- Department of Haemostasis, Nantes University Hospital, Nantes, France
| | - Claire Flaujac
- Department of Haemostasis, Versailles Hospital, Versailles, France
| | - Fabienne Volot
- Department of Haemostasis, Dijon University Hospital, Dijon, France
| | | | - Philippe Beurrier
- Department of Haemostasis, Angers University Hospital, Angers, France
| | - Vincent Cussac
- Department of Haemostasis, Le Mans Hospital, Le Mans, France
| | - Olivier Feugeas
- Department of Haemostasis, Strasbourg University Hospital, Strasbourg, France
| | - Yoann Pailler
- Department of Haemostasis, Nantes University Hospital, Nantes, France
| | | | - Marc Trossaërt
- Department of Haemostasis, Nantes University Hospital, Nantes, France
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15
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Connell NT, James PD, Brignardello-Petersen R, Abdul-Kadir R, Ameer B, Arapshian A, Couper S, Di Paola J, Eikenboom J, Giraud N, Grow JM, Haberichter S, Jacobs-Pratt V, Konkle BA, Kouides P, Laffan M, Lavin M, Leebeek FWG, McLintock C, McRae S, Montgomery R, O'Brien SH, O'Donnell JS, Ozelo MC, Scappe N, Sidonio R, Tosetto A, Weyand AC, Kalot MA, Husainat N, Mustafa RA, Flood VH. von Willebrand disease: proposing definitions for future research. Blood Adv 2021; 5:565-569. [PMID: 33496750 PMCID: PMC7839375 DOI: 10.1182/bloodadvances.2020003620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/14/2020] [Indexed: 02/04/2023] Open
Affiliation(s)
- Nathan T Connell
- Hematology Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Paula D James
- Department of Medicine, Queen's University, Kingston, ON, Canada
| | | | - Rezan Abdul-Kadir
- The Royal Free Foundation Hospital and Institute for Women's Health, University College London, London, United Kingdom
| | - Barbara Ameer
- Pharmacology Consulting, Princeton Junction, NJ
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ
| | | | | | - Jorge Di Paola
- Department of Pediatrics, Washington University in St. Louis, St. Louis, MO
| | | | | | | | | | | | - Barbara A Konkle
- Bloodworks Northwest, Seattle, WA
- University of Washington, Seattle, WA
| | - Peter Kouides
- University of Rochester, Mary M. Gooley Hemophilia Treatment Center, Rochester, NY
| | - Michael Laffan
- Centre for Haematology, Imperial College London, London, United Kingdom
| | - Michelle Lavin
- Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Frank W G Leebeek
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Claire McLintock
- National Women's Health, Auckland City Hospital, Auckland, New Zealand
| | - Simon McRae
- Northern Cancer Service, Launceston General Hospital, Launceston, TAS, Australia
| | - Robert Montgomery
- Medical College of Wisconsin, Versiti Blood Research Institute, Milwaukee, WI
| | - Sarah H O'Brien
- Division of Hematology/Oncology, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State College of Medicine, Columbus, OH
| | - James S O'Donnell
- Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Margareth C Ozelo
- Hemocentro UNICAMP, University of Campinas, Campinas, Sao Paulo, Brazil
| | | | - Robert Sidonio
- Aflac Cancer and Blood Disorders, Children's Healthcare of Atlanta, Emory University, Atlanta, GA
| | - Alberto Tosetto
- Hemophilia and Thrombosis Center, Hematology Department, S. Bortolo Hospital, Vicenza, Italy
| | - Angela C Weyand
- Divison of Hematology/Oncology, Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI; and
| | - Mohamad A Kalot
- Outcomes and Implementation Research Unit, Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
| | - Nedaa Husainat
- Outcomes and Implementation Research Unit, Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
| | - Reem A Mustafa
- Outcomes and Implementation Research Unit, Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
| | - Veronica H Flood
- Medical College of Wisconsin, Versiti Blood Research Institute, Milwaukee, WI
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16
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Connell NT, Flood VH, Brignardello-Petersen R, Abdul-Kadir R, Arapshian A, Couper S, Grow JM, Kouides P, Laffan M, Lavin M, Leebeek FWG, O'Brien SH, Ozelo MC, Tosetto A, Weyand AC, James PD, Kalot MA, Husainat N, Mustafa RA. ASH ISTH NHF WFH 2021 guidelines on the management of von Willebrand disease. Blood Adv 2021; 5:301-325. [PMID: 33570647 PMCID: PMC7805326 DOI: 10.1182/bloodadvances.2020003264] [Citation(s) in RCA: 155] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/27/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND von Willebrand disease (VWD) is a common inherited bleeding disorder. Significant variability exists in management options offered to patients. OBJECTIVE These evidence-based guidelines from the American Society of Hematology (ASH), the International Society on Thrombosis and Haemostasis (ISTH), the National Hemophilia Foundation (NHF), and the World Federation of Hemophilia (WFH) are intended to support patients, clinicians, and health care professionals in their decisions about management of VWD. METHODS ASH, ISTH, NHF, and WFH formed a multidisciplinary guideline panel. Three patient representatives were included. The panel was balanced to minimize potential bias from conflicts of interest. The University of Kansas Outcomes and Implementation Research Unit and the McMaster Grading of Recommendations Assessment, Development and Evaluation (GRADE) Centre supported the guideline development process, including performing and updating systematic evidence reviews (through November 2019). The panel prioritized clinical questions and outcomes according to their importance to clinicians and patients. The panel used the GRADE approach, including GRADE Evidence-to-Decision frameworks, to assess evidence and make recommendations, which were subject to public comment. RESULTS The panel agreed on 12 recommendations and outlined future research priorities. CONCLUSIONS These guidelines make key recommendations regarding prophylaxis for frequent recurrent bleeding, desmopressin trials to determine therapy, use of antiplatelet agents and anticoagulant therapy, target VWF and factor VIII activity levels for major surgery, strategies to reduce bleeding during minor surgery or invasive procedures, management options for heavy menstrual bleeding, management of VWD in the context of neuraxial anesthesia during labor and delivery, and management in the postpartum setting.
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Affiliation(s)
- Nathan T Connell
- Hematology Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Veronica H Flood
- Versiti Blood Research Institute, Medical College of Wisconsin, Milwaukee, WI
| | | | - Rezan Abdul-Kadir
- Department of Obstetrics and Gynaecology and Katharine Dormandy Haemophilia and Thrombosis Centre, Royal Free Foundation Hospital and Institute for Women's Health, University College London, London, United Kingdom
| | | | | | - Jean M Grow
- Department of Strategic Communication, Marquette University, Milwaukee, WI
| | - Peter Kouides
- Mary M. Gooley Hemophilia Treatment Center, University of Rochester, Rochester, NY
| | - Michael Laffan
- Centre for Haematology, Imperial College London, London, United Kingdom
| | - Michelle Lavin
- Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland and National Coagulation Centre, St James's Hospital, Dublin, Ireland
| | - Frank W G Leebeek
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Sarah H O'Brien
- Division of Hematology/Oncology, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, OH
| | | | - Alberto Tosetto
- Hemophilia and Thrombosis Center, Hematology Department, S. Bortolo Hospital, Vicenza, Italy
| | - Angela C Weyand
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI
| | - Paula D James
- Department of Medicine, Queen's University, Kingston, ON, Canada; and
| | - Mohamad A Kalot
- Outcomes and Implementation Research Unit, Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
| | - Nedaa Husainat
- Outcomes and Implementation Research Unit, Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
| | - Reem A Mustafa
- Outcomes and Implementation Research Unit, Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS
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17
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Effectiveness and safety of hFVIII/VWF concentrate (Voncento ®) in patients with inherited von Willebrand disease requiring surgical procedures: the OPALE multicentre observational study. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2020; 19:152-157. [PMID: 33263522 DOI: 10.2450/2020.0246-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/30/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND In patients with moderate to severe qualitative and quantitative von Willebrand disease (VWD), even minor surgical procedures can be associated with a risk of life-threatening bleeding. Treatment strategies vary according to the levels of von Willebrand factor (VWF) and Factor VIII (FVIII). The aim of this study was to evaluate the effectiveness and the safety of Voncento® (CSL Behring, Marburg, Germany), a plasma-derived FVIII/VWF concentrate (ratio 1:2.4), during surgeries performed in patients with inherited VWD. MATERIALS AND METHODS The OPALE study, a French multicentre observational study, was carried out from May 2016 to May 2019. It evaluated and analysed patients with inherited VWD (any type) requiring treatment with Voncento® who underwent surgery. RESULTS In total, 92 patients were enrolled, and 66 patients underwent 100 surgical procedures: 69 minor and 31 major surgeries conducted in 30 patients with type 1, 50 patients with type 2, and 20 patients with type 3 VWD. During minor surgeries, the median number of infusions was one (range: 1-9), the pre-operative loading dose was 41 IU VWF:RCo kg-1 (range: 18-147), and the total dose was 63 (range: 18-594). During major surgeries, the number of infusions was 4 (range: 1-23), the pre-operative loading dose was 43 (range: 25-66) IU VWF: RCo kg-1, and the total dose was 155 (range: 40-575). The median FVIII:C levels ranged from 78 to 165 IU dL-1 during 5 days after minor surgeries and from 86 and 167 IU dL-1 during 11 days after major surgeries. VW:RCo levels ranged between 35 and 65 IU dL-1 and between 34 and 76 IU dL-1 after minor and major surgeries, respectively. The overall clinical effectiveness was qualified as "excellent" or "good" in 99% of patients. No thrombotic events related to Voncento® were recorded. DISCUSSION The present study suggests that Voncento® is an effective and well-tolerated therapy for the peri-operative management of patients with all VWD types.
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18
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Miesbach W. Perioperative management for patients with von Willebrand disease: Defining the optimal approach. Eur J Haematol 2020; 105:365-377. [DOI: 10.1111/ejh.13462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 01/19/2023]
Affiliation(s)
- Wolfgang Miesbach
- Haemophilia Centre Medical Clinic II Institute of Transfusion Medicine Goethe University Hospital Frankfurt am Main Germany
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19
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Lissitchkov T, Madan B, Djambas Khayat C, Zozulya N, Ross C, Karimi M, Kavakli K, De Angulo GR, Almomen A, Subramanian K, D'Souza F, Viswabandya A, Hoorfar H, Schwartz BA, Solomon C, Knaub S, Peyvandi F. Fibrinogen concentrate for treatment of bleeding and surgical prophylaxis in congenital fibrinogen deficiency patients. J Thromb Haemost 2020; 18:815-824. [PMID: 31885190 PMCID: PMC7187153 DOI: 10.1111/jth.14727] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/19/2019] [Accepted: 12/26/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND Congenital fibrinogen deficiency is an ultra-rare disorder in which patients can experience severe and/or frequent bleeding episodes (BEs). Here, we present the largest prospective study to date on the treatment of this disorder. METHODS Hemostatic efficacy of human fibrinogen concentrate (HFC; FIBRYGA® , Octapharma AG) for treatment of bleeding or surgical prophylaxis was assessed by investigators and adjudicated by an independent data monitoring and endpoint adjudication committee (IDMEAC) according to a four-point scale, using objective criteria. Thromboelastometry maximum clot firmness (MCF) was also determined. RESULTS Twenty-five afibrinogenemia patients were treated with HFC: 24 for on-demand treatment of 89 BEs, and nine as prophylaxis for 12 surgeries. For BEs, treatment success (rating of excellent or good) evaluated by investigators was 96.6% (90% confidence interval [CI], 0.92-0.99; two missing ratings, classified as failures) and by the IDMEAC was 98.9% (90% CI, 0.95-0.999). Mean ± standard deviation (SD) increase in MCF was 5.8 ± 2.5 mm one hour after the first HFC infusion (mean ± SD dose, 61.88 ± 11.73 mg/kg). For the 12 surgeries (median [range] HFC dose/surgery, 85.80 mg/kg [34.09-225.36]), intraoperative and postoperative treatment success were both rated 100% (90% CI, 0.82-1.00) by investigators and the IDMEAC. Three adverse events were possibly treatment related, including a moderate case of thrombosis. There were no deaths, no severe allergic or hypersensitivity reactions, and no clinical evidence of neutralizing antifibrinogen antibodies. CONCLUSIONS Human fibrinogen concentrate was efficacious for on-demand treatment of bleeding and as surgical prophylaxis, with a favorable safety profile, in patients with congenital afibrinogenemia.
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Affiliation(s)
- Toshko Lissitchkov
- Department of Hemorrhagic Diathesis and AnemiaSpecialized Hospital for Active Treatment (SHAT) “Joan Pavel”SofiaBulgaria
| | - Bella Madan
- Centre for Haemostasis & ThrombosisGuy's & St Thomas' NHS Foundation TrustLondonUK
| | | | - Nadezhda Zozulya
- Federal State‐Funded Institution “National Research Center for Hematology” of the Ministry of Healthcare of the Russian FederationMoscowRussia
| | - Cecil Ross
- Department of HematologySt. John's Medical College & HospitalBangaloreIndia
| | | | | | | | - Abdulkareem Almomen
- Centre of Excellence in Thrombosis & HemostasisCollege of Medicine and King Khalid University HospitalKing Saud UniversityRiyadhSaudi Arabia
| | | | - Fulton D'Souza
- Department of HematologySt. John's Medical College & HospitalBangaloreIndia
| | | | | | | | | | - Sigurd Knaub
- Research & Development DepartmentOctapharmaLachenSwitzerland
| | - Flora Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis CenterFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Pathophysiology and TransplantationUniversità degli Studi di MilanoMilanItaly
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20
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Husseinzadeh HD, Haberichter S. Evidence-Based Minireview: Perioperative management of the VWD patient at elevated thrombotic risk. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:601-603. [PMID: 31808869 PMCID: PMC6913468 DOI: 10.1182/hematology.2019000078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Holleh D Husseinzadeh
- Cardeza Foundation for Hematologic Research, Division of Hematology, Thomas Jefferson University Hospital, Philadelphia, PA
| | - Sandra Haberichter
- Versiti, Blood Research Institute, Milwaukee, WI; and
- Medical College of Wisconsin, Department of Pediatric-Hem/Onc, Milwaukee, WI
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21
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Peyvandi F, Kouides P, Turecek PL, Dow E, Berntorp E. Evolution of replacement therapy for von Willebrand disease: From plasma fraction to recombinant von Willebrand factor. Blood Rev 2019; 38:100572. [DOI: 10.1016/j.blre.2019.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/27/2019] [Accepted: 04/02/2019] [Indexed: 01/19/2023]
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Topf HG, Strasser ER, Breuer G, Rascher W, Rauh M, Fahlbusch FB. Closing the gap - detection of clinically relevant von Willebrand disease in emergency settings through an improved algorithm based on rotational Thromboelastometry. BMC Anesthesiol 2019; 19:10. [PMID: 30630422 PMCID: PMC6329185 DOI: 10.1186/s12871-018-0672-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 12/26/2018] [Indexed: 01/25/2023] Open
Abstract
Background Hemorrhage and blood loss are still among the main causes of preventable death. Global hemostatic assays are useful point-of-care test (POCT) devices to rapidly detect cumulative effects of plasma factors and platelets on coagulation. Thromboelastography (TEG) and Thromboelastometry (ROTEM) are established methods in many anesthesiological departments for guided hemostatic treatment. However, von Willebrand disease remains undetected by standard ROTEM, especially during emergency care, despite being the most prevalent congenital hemostatic disorder. Methods In our monocentric cohort pilot study we focused on hemostatic challenges associated with von Willebrand disease. Twenty-seven patients with suspected von Willebrand disease were included. We modified the routine ROTEM assay by adding a preincubation with ristocetin and commercially available plasma-derived von Willebrand factor to identify clinically relevant von Willebrand disease (VWD). Results Addition of von Willebrand factor to the ristocetin assay of a VWD type 3 patient restored the reaction of the whole blood probe to match the response of a healthy person. Our modified ROTEM assay with ristocetin (Ricotem) showed that all high responders (n = 7) had VWD. In the low responder group (n = 16) – 10 of 16 had VWD and in the normal responder group (n = 5), 2 of 5 had mild type 1 VWD. Conclusions This new modification of the standard ROTEM assay enables the detection of otherwise unnoticed critical von Willebrand disease based on alterations in clot formation and might serve as a novel approach to reliably assess severe VWD patients by platelet-mediated blood clotting in an emergency setting. We recommend incorporating this new VWD-focused screening tool into the current ROTEM-based management algorithm of acute microvascular bleeding. Electronic supplementary material The online version of this article (10.1186/s12871-018-0672-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- H-G Topf
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany.
| | - E R Strasser
- Department of Transfusion Medicine and Hemostasis, University of Erlangen-Nurnberg, Erlangen, Germany
| | - G Breuer
- Department of Anesthesiology, University of Erlangen-Nurnberg, Erlangen, Germany
| | - W Rascher
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany
| | - M Rauh
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany
| | - F B Fahlbusch
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nurnberg, Loschgestr. 15, 91054, Erlangen, Germany
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Abstract
STUDY DESIGN Benchtop model with prospective surgeon video testing. OBJECTIVE To create a surface bleeding severity scale, the SPOT GRADE (SG), for quantitative assessment of target bleeding site (TBS) blood loss. This is of particular interest for spinal surgery due to epidural bleeding and an inability to use diathermy and radiofrequency cautery close to nerve roots. SUMMARY OF BACKGROUND DATA A novel apparatus perfusable at known flow rates and simulating different sized wounds was used to create movies to educate surgeons on specific degrees of bleeding. METHODS Training (36) and testing (108) videos were created using a benchtop apparatus employing different bleeding severities based on the six-level SG (none, minimal, mild, moderate, severe, and extreme) and TBS sizes (1, 10, and 50 cm). Fourteen surgeons in four specialties (cardiothoracic, abdominal, spine, and orthopedic lower extremity) were trained and tested to evaluate SG characteristics including inter-rater and intrarater reliability. RESULTS The interclass correlation coefficient was estimated to be 0.89840 (95% confidence interval [CI]: 0.85771, 1), whereas the intraclass correlation coefficient was estimated to be 0.93673 (95% CI: 0.89603, 1). In 98% of cases (95% CI: 0.9736, 0.9927), surgeons correctly identified eligible bleeds for a future clinical trial (scores = 1, 2, or 3) and in 91% of cases (95% CI: 0.8895, 0.9344), surgeons correctly identified noneligible bleeds (scores = 4 or 5). In 98.6% of cases (95% CI: 0.9777, 0.9945), physicians correctly identified true hemostasis (score = 0). Based upon these data the probability of a physician rating a bleed incorrectly as hemostasis (score = 0) is estimated to be 1.51% (95% CI: 0.0061, 0.0363). CONCLUSION This SG is reproducible and reliable providing a basis for educating surgeons on TBS blood loss. It appears to be a new standard for evaluating wound blood loss. LEVEL OF EVIDENCE 2.
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Berntorp E. Replacement therapy during surgery in von Willebrand disease needs personalization. Haemophilia 2018; 24:338-340. [PMID: 29665194 DOI: 10.1111/hae.13488] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2018] [Indexed: 01/19/2023]
Affiliation(s)
- E Berntorp
- Centre for Thrombosis and Haemostasis, Lund University, Skåne University Hospital, Malmö, Sweden
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25
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Al-Lawati H, Al-Baimani K, Al-Zadjali M, Al-Obaidani N, Al-Kiyumi Z, Al-Khabori MK. Knowledge and Attitudes Towards Clinical Trial Participation in Oman: A cross-sectional study. Sultan Qaboos Univ Med J 2018; 18:e54-e60. [PMID: 29666682 DOI: 10.18295/squmj.2018.18.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/29/2017] [Accepted: 12/14/2017] [Indexed: 01/19/2023] Open
Abstract
Objectives Clinical trials are prospective studies on human subjects designed to answer various clinical questions. However, only a limited number of clinical trials have been conducted in Oman. This study aimed to assess the knowledge and attitudes of Omani patients and their relatives towards participating in clinical trials. Methods This cross-sectional study was conducted between October 2015 and March 2016 among 174 patients and relatives attending the Haematology and Oncology Outpatient Clinics and Day Care Unit of the Sultan Qaboos University Hospital, Muscat, Oman. A self-administered questionnaire was designed to elicit participants' knowledge of and attitudes towards participation in clinical trials. Results A total of 100 patients and relatives agreed to take part in the study (response rate: 57.5%). The male-to-female ratio was 1:1.2. Only 31.3% of the studied population knew what clinical trials were and only 6.5% had themselves previously participated in a clinical trial. The majority agreed or strongly agreed that they would participate in clinical trials related to their own condition (59.2%). Overall, 89.7% expected to be informed about potential clinical trials by their treating physicians. Conclusion Omanis had a low level of knowledge of clinical trials and a very low rate of previous participation in such trials, despite a moderate level of interest. Patients should therefore be educated and informed of ongoing clinical trials in order to improve participation rates for clinical trials conducted in Oman.
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Affiliation(s)
- Hussain Al-Lawati
- College of Medicine & Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Khalid Al-Baimani
- Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | - Mahra Al-Zadjali
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Nasra Al-Obaidani
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Ziyana Al-Kiyumi
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
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26
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Lissitchkov T, Madan B, Djambas Khayat C, Zozulya N, Ross C, Karimi M, Kavakli K, De Angulo GR, Almomen A, Schwartz BA, Solomon C, Knaub S, Peyvandi F. Efficacy and safety of a new human fibrinogen concentrate in patients with congenital fibrinogen deficiency: an interim analysis of a Phase III trial. Transfusion 2017; 58:413-422. [DOI: 10.1111/trf.14421] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/22/2017] [Accepted: 09/27/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Toshko Lissitchkov
- Department of Hemorrhagic Diathesis and Anemia; Specialized Hospital for Active Treatment (SHAT) “Joan Pavel,”; Sofia Bulgaria
| | - Bella Madan
- Centre for Haemostasis & Thrombosis; Guy's & St Thomas' NHS Foundation Trust; London UK
| | | | - Nadezhda Zozulya
- Federal State-Funded Institution “National Research Center for Hematology” of the Ministry of Healthcare of the Russian Federation; Moscow Russia
| | - Cecil Ross
- Department of Hematology; St John's Medical College & Hospital; Bangalore India
| | - Mehran Karimi
- Hematology Research Center, Nemazee Hospital; Shiraz University of Medical Sciences; Shiraz Iran
| | - Kaan Kavakli
- Ege University, Children's Hospital; Izmir Turkey
| | | | - Abdulkareem Almomen
- Centre of Excellence in Thrombosis & Hemostasis; College of Medicine and King Khalid University Hospital, King Saud University; Riyadh Saudi Arabia
| | | | - Cristina Solomon
- Research & Development Department; Octapharma; Lachen Switzerland
- Department of Anesthesiology, Perioperative Care and General Intensive Care; Paracelsus Medical University, Salzburg University Hospital; Salzburg Austria
| | - Sigurd Knaub
- Research & Development Department; Octapharma; Lachen Switzerland
| | - Flora Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico and Luigi Villa Foundation, Department of Pathophysiology and Transplantation; Università degli Studi di Milano; Milan Italy
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