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Male C, Ay C, Crevenna R, Eichinger S, Feistritzer C, Füller R, Haushofer A, Kurringer A, Neumeister P, Puchner S, Rettl T, Schindl T, Schuster G, Schwarz G, Sohm M, Streif W, Thom K, Wagner B, Wissmann E, Zwiauer K, Pabinger I. [Treatment of haemophilia in Austria]. Wien Klin Wochenschr 2024; 136:75-102. [PMID: 38743098 DOI: 10.1007/s00508-024-02370-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2024] [Indexed: 05/16/2024]
Abstract
This guideline is intended to provide practical guidance for the diagnosis and treatment of haemophilia in Austria. Few randomized controlled interventional trials are available addressing the treatment of haemophilia, therefore recommendations are usually based on low level of evidence and represent expert consensus.This guideline is based on the WFH guideline, published in 2020, and adapted according to the national circumstances and experience.It includes recommendations and suggestions for diagnosis and follow-up visits and pharmacological therapies for treatment and prophylaxis. Further topics comprise special aspects in children and adults with severe haemophilia, outcome measurement, and management of trauma, special bleedings and interventions, including dental procedures, inhibitors, management of haemophilia carriers, and psychosocial aspects.
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Affiliation(s)
- Christoph Male
- Universitätsklinik für Kinder- und Jugendheilkunde, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich.
| | - Cihan Ay
- Abteilung für Hämatologie und Hämostaseologie, Universitätsklinik für Innere Medizin I, Medizinische Universität Wien, Wien, Österreich
| | - Richard Crevenna
- Universitätsklinik für Physikalische Medizin, Rehabilitation und Arbeitsmedizin, Medizinische Universität Wien, Wien, Österreich
| | - Sabine Eichinger
- Abteilung für Hämatologie und Hämostaseologie, Universitätsklinik für Innere Medizin I, Medizinische Universität Wien, Wien, Österreich
| | - Clemens Feistritzer
- Abteilung für Innere Medizin V - Hämatologie und Onkologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Robert Füller
- Österreichische Hämophilie Gesellschaft, Wien, Österreich
| | - Alexander Haushofer
- Institut für Medizinische und Chemische Labordiagnostik, Klinikum Wels-Grieskirchen, Wels-Grieskirchen, Österreich
| | - Andreas Kurringer
- Abteilung für Kinder- und Jugendheilkunde, Landeskrankenhaus Bregenz, Bregenz, Österreich
| | - Peter Neumeister
- Klinische Abteilung für Hämatologie, Medizinische Universität Graz, Graz, Österreich
| | - Stephan Puchner
- Klinische Abteilung für Orthopädie, Universitätsklinik für Orthopädie und Unfallchirurgie, Medizinische Universität Wien, Wien, Österreich
| | - Thomas Rettl
- Abteilung für Innere Medizin und Hämatologie und internistische Onkologie, Klinikum Klagenfurt, Klagenfurt, Österreich
| | - Thomas Schindl
- Österreichische Hämophilie Gesellschaft, Wien, Österreich
| | | | - Gerhard Schwarz
- Abteilung für Kinder- und Jugendheilkunde, Landesklinikum Amstetten, Universität Wien, Wien, Österreich
| | - Michael Sohm
- Universitätsklinik für Kinder- und Jugendheilkunde, Universitätsklinikum St. Pölten, St. Pölten, Österreich
| | - Werner Streif
- Department Kinder- und Jugendheilkunde, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Katharina Thom
- Universitätsklinik für Kinder- und Jugendheilkunde, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - Barbara Wagner
- Universitätsklinik für Physikalische Medizin, Rehabilitation und Arbeitsmedizin, Medizinische Universität Wien, Wien, Österreich
| | - Eva Wissmann
- Universitätsklinik für Kinder- und Jugendheilkunde, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - Karl Zwiauer
- Universitätsklinik für Kinder- und Jugendheilkunde, Universitätsklinikum St. Pölten, St. Pölten, Österreich
| | - Ingrid Pabinger
- Abteilung für Hämatologie und Hämostaseologie, Universitätsklinik für Innere Medizin I, Medizinische Universität Wien, Wien, Österreich
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Hassan E, Motwani J. Single centre experience of the use of emicizumab in previously untreated and minimally treated patients under 18 months of age. Pediatr Blood Cancer 2024; 71:e30941. [PMID: 38462765 DOI: 10.1002/pbc.30941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/12/2024]
Abstract
Emicizumab has revolutionised haemophilia A treatment landscape and significantly reduced treatment burden, particularly in the paediatric population. We conducted a retrospective study, focused on infants aged ≤18 months with severe haemophilia A. The study included 16 patients, with a median age of 8.2 months and median treatment duration of 61.6 weeks. Before commencing emicizumab, six patients were minimally treated with ≤5 exposure days while 10 were previously untreated patients. Notably, all patients had no inhibitors at baseline, and none developed new inhibitors during the study period. Emicizumab was well tolerated, with no observed side effects or major bleeding events.
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Affiliation(s)
- Eman Hassan
- Department of Paediatric Haematology, Birmingham Children's Hospital, Birmingham, UK
| | - Jayashree Motwani
- Department of Paediatric Haematology, Birmingham Children's Hospital, Birmingham, UK
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Klukowska A, Sidonio RF, Young G, Mancuso ME, Álvarez-Román MT, Bhatnagar N, Jansen M, Knaub S. Simoctocog alfa (Nuwiq ®) in children: early steps in life's journey for people with severe hemophilia A. Ther Adv Hematol 2024; 15:20406207241245511. [PMID: 38737006 PMCID: PMC11085023 DOI: 10.1177/20406207241245511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/20/2024] [Indexed: 05/14/2024] Open
Abstract
People with severe hemophilia A usually experience their first bleed early in life. In children with severe hemophilia A, primary prophylaxis is recommended to prevent recurrent and potentially life-threatening bleeds that significantly impact day-to-day life. Factor VIII (FVIII) prophylaxis is well-established in children and has been shown to reduce the development of hemophilic arthropathy. However, a major challenge of FVIII therapy is the development of neutralizing anti-FVIII antibodies (FVIII inhibitors). Simoctocog alfa (Nuwiq®) is a human cell line-derived recombinant FVIII (rFVIII) whose immunogenicity, efficacy, and safety have been studied in 167 children with severe hemophilia A across two prospective clinical trials and their long-term extensions. In 105 previously untreated children, the inhibitor rate of 16.2% for high-titer inhibitors (26.7% for all inhibitors) was lower than published rates for hamster cell line-derived rFVIII products. There was no inhibitor development in previously untreated children with non-null F8 mutations and in previously treated children. In a case series of 10 inhibitor patients, 8 (80%) underwent successful immune tolerance induction with simoctocog alfa with a median time to undetectable inhibitor of 3.5 months. In an analysis of 96 children who enrolled in the extension studies and received long-term simoctocog alfa prophylaxis for up to 5 years, median spontaneous, joint, and total annualized bleeding rates were 0.3, 0.4, and 1.8, respectively. No thromboembolisms were reported in any of the 167 children, and there were no treatment-related deaths. Optimal care of children should consider several factors, including minimization of inhibitor development risk, maintaining tolerance to FVIII, highly effective bleed prevention and treatment, safety, and impact on long-term outcomes such as bone and joint health. In this context we review the pediatric clinical data and ongoing studies with simoctocog alfa.
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Affiliation(s)
- Anna Klukowska
- Haemostasis Group of the Polish Society of Haematology and Transfusiology, 14 Indira Gandhi Street, Warsaw 02-776, Poland
| | - Robert F. Sidonio
- Hemophilia of Georgia Center for Bleeding and Clotting Disorders, Children’s Healthcare of Atlanta, Emory University, Atlanta, GA, USA
| | - Guy Young
- Hemostasis and Thrombosis Center, Cancer and Blood Disease Institute, Children’s Hospital Los Angeles, University of Southern California, Los Angeles, CA, USA
| | - Maria Elisa Mancuso
- Center for Thrombosis and Hemorrhagic Diseases, IRCCS Humanitas Research Hospital, Rozzano, Italy
- Humanitas University, Pieve Emanuele, Italy
| | | | - Neha Bhatnagar
- Oxford Haemophilia and Thrombosis Comprehensive Care Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Martina Jansen
- Clinical Research and Development, Octapharma Pharmazeutika Produktionsges m.b.H., Vienna, Austria
| | - Sigurd Knaub
- Clinical Research and Development, Octapharma AG, Lachen, Switzerland
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Mawarikado Y, Sakata A, Inagaki Y, Harada S, Tatsumi K, Matsumoto N, Ogiwara K, Yada K, Yoshimura Y, Kido A, Tanaka Y, Shima M, Nogami K. Force-sensing treadmill gait analysis system can detect gait abnormalities in haemophilia patients without arthropathy. Haemophilia 2024; 30:780-790. [PMID: 38507270 DOI: 10.1111/hae.14987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/21/2024] [Accepted: 03/01/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Joint damage in patients with haemophilia (PwH) is commonly assessed by imaging, but few reports have described how structural changes in joints, for example, haemophilic arthropathy (HA)-affect gait ability. OBJECTIVES We evaluated gait function among PwH with HA, PwH without HA, and people without haemophilia (non-PwH) using a Zebris FDM-T treadmill (FDM-T), an easy-to-use gait assessment instrument with a force sensor matrix. METHODS The following gait parameters were collected: centre of pressure trajectory intersection (COPi) anterior/posterior variability, COPi lateral variability, COPi anterior/posterior symmetry, COPi lateral symmetry, single-limb support line (SLSL) length, and SLSL variability. Participants walked at their typical gait speed. The physical function of the PwH was assessed by the Hemophilia Joint Health Score (HJHS). Parameters were compared among the three groups. RESULTS Twelve PwH with HA, 28 PwH without HA, and 12 non-PwH were enrolled. Gait speed significantly differed between groups (non-PwH, 3.1 ± 0.7; PwH without HA, 2.0 ± 0.7; PwH with HA; 1.5 ± 0.4). The COPi anterior/posterior variability, COPi lateral variability, SLSL length, and SLSL variability were greater in the PwH groups than in the non-PwH group. The COPi lateral symmetry differed between PwH with HA and the other groups. The HJHS was not correlated with gait parameters among PwH with HA. CONCLUSIONS Gait parameters and speed were abnormal in both PwH with HA and PwH without HA. The FDM-T can be used to identify early stages of physical dysfunction that cannot be detected by conventional functional assessments such as the HJHS.
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Affiliation(s)
- Yuya Mawarikado
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Asuka Sakata
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Yusuke Inagaki
- Department of Rehabilitation Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Suguru Harada
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
- Product Research Department, Medical Affairs Division, Chugai Pharmaceutical Co., Ltd, Yokohama City, Kanagawa, Japan
| | - Kohei Tatsumi
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
- Advanced Medical Science of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Naoki Matsumoto
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
- Product Research Department, Medical Affairs Division, Chugai Pharmaceutical Co., Ltd, Yokohama City, Kanagawa, Japan
| | - Kenichi Ogiwara
- Department of Paediatrics, Nara Medical University, Kashihara, Nara, Japan
| | - Koji Yada
- Department of Paediatrics, Nara Medical University, Kashihara, Nara, Japan
- Neonatal Intensive Care, Maternal, Fetal and Neonatal Medical Center, Nara Medical University Hospital, Kashihara, Nara, Japan
| | - Yasushi Yoshimura
- Product Research Department, Medical Affairs Division, Chugai Pharmaceutical Co., Ltd, Yokohama City, Kanagawa, Japan
| | - Akira Kido
- Department of Rehabilitation Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Yasuhito Tanaka
- Department of Orthopaedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Midori Shima
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Keiji Nogami
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
- Department of Paediatrics, Nara Medical University, Kashihara, Nara, Japan
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Giordano P, Pollio B, Sottilotta G, Biasoli C, Daniele F, De Cristofaro R, Peyvandi F, Villa MR, Castaman G. Pattern of use and clinical outcomes with rIX-FP in pediatric/adolescent patients with haemophilia B in Italy: Results from IDEAL real-world study. Eur J Haematol 2024; 112:765-775. [PMID: 38223989 DOI: 10.1111/ejh.14168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/16/2024]
Abstract
OBJECTIVES To evaluate pattern of use and clinical outcomes in pediatric/adolescent patients enrolled in the IDEAL study. METHODS This post-hoc analysis of IDEAL retrospective-prospective observational study focused on patients <18 years, 100% on prophylaxis during the entire observation period. RESULTS Thirteen subjects (median age 10.0 years; 61.5% ≤ 11 years) were analyzed. The infusion frequency changed from 2/week in 84.6% (N = 11) of patients with previous rFIX, to less than 1/weekly in 76.9% (N = 9) with rIX-FP and the annualized number of infusions reduced of 57% (p = .002), from a mean ± SD of 95.1 ± 22.77 to 40.4 ± 6.79, respectively. Annualized mean consumption decreased of about 56% (p = .001), from 3748.4 ± 1155.40 IU/kg with previous rFIX, to 1656.8 ± 456.63 IU/kg of rIX-FP. Mean FIX trough level changed from 3.0% ± 1.98% to 10.92% ± 3.6%. Low mean Annualized Bleeding Rate was maintained across all prophylaxis regimens (0.8 ± 1.69 vs. 0.3 ± 0.89) and zero bleeding patients moved from 69.2% (N = 9) with previous rFIX to 84.6% (N = 11) with rIX-FP (p = .63). Two adverse events, none related to rIX-FP, occurred in two patients. No inhibitors development was reported. CONCLUSIONS The results in this pediatric/adolescent subgroup support rIX-FP prophylaxis may reduce infusion frequency, while providing high FIX trough levels, stable annualized bleeding rate and a good safety profile.
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Affiliation(s)
- Paola Giordano
- B. Trambusti General and Specialised Paediatrics Unit, Giovanni XXIII Hospital, University of Bari, Bari, Italy
| | - Berardino Pollio
- Regional Reference Centre for Inherited Bleeding and Thrombotic Disorders, Transfusion Medicine, Regina Margherita Children Hospital, Turin, Italy
| | | | - Chiara Biasoli
- Haemophilia and Transfusion Centre, Bufalini Hospital, Cesena, Italy
| | - Filomena Daniele
- Haemostasis and Thrombosis Service, Ospedale Civile dell'Annunziata, Cosenza, Italy
| | - Raimondo De Cristofaro
- Haemorrhagic and Thrombotic Disease Service, Area of Haematological and Oncological Sciences, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Flora Peyvandi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi, Haemophilia and Thrombosis Centre, and Università degli Studi di Milano, Department of Pathophysiology and Transplantation, Milan, Italy
| | - Maria Rosaria Villa
- Haemophilia and Thrombosis Centre, Hematology Unit, Ospedale del Mare, Naples, Italy
| | - Giancarlo Castaman
- Centre for Bleeding Disorders and Coagulation, Department of Oncology, Careggi University Hospital, Florence, Italy
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Meijon-Ortigueira MDM, Alvarez-Roman MT, De La Corte H, Butta N, Jimenez-Yuste V. Predicting joint involvement through tailored prophylaxis in severe haemophilia A, is it possible? Haemophilia 2024; 30:678-684. [PMID: 38575526 DOI: 10.1111/hae.15014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/12/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
INTRODUCTION Tailored prophylaxis is the current treatment regimen for patients with severe haemophilia A. Recently, published guidelines describe two possible approaches, based on clinical characteristics or estimation of pharmacokinetic parameters. However, both have strengths and weaknesses, and their characteristics need to be integrated to optimize treatment appropriately. In this paper, we present a model that considers together the characteristics of prophylaxis and the relevance of each. METHODS The age at initiation of prophylaxis, number of bleeding events, treatment regimen, therapeutic adherence, FVIII trough levels, and joint status were analyzed in 59 patients followed at La Paz University Hospital between January 2000 and December 2019. RESULTS The mean duration of primary prophylaxis of 113.37 ± 57.79 months. Eighty-three percent (n = 49) had no joint status involvement at the end of follow-up (HJHS and HEAD-US = 0). The median ABR was 0.7 (IQR 0.2 -1.0) and 54.2% presented trough levels of FVIII during follow-up >1 IU/dL. 72,9% engaged in some type of physical activity and overall adherence was over 85% in all patients evaluated. The regression analysis performed, considering all these factors, showed that the initiation of prophylaxis before 21 months of age was the most relevant protective factor against the appearance of joint involvement (OR 88.33 p.031 CI 95% 1.49-5224.40) CONCLUSION: Early initiation of prophylaxis was the most relevant factor in the protection of joint status. More comprehensive analysis models adapted to the characteristics of each population, are needed to adequately individualize treatment.
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Affiliation(s)
| | | | - Hortensia De La Corte
- Department of Physical Medicine and Rehabilitation, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Nora Butta
- Department of Hematology, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Victor Jimenez-Yuste
- Department of Hematology, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, Madrid, Spain
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Arvanitakis A, Jepsen C, Andersson NG, Baghaei F, Astermark J. Primary prophylaxis implementation and long-term joint outcomes in Swedish haemophilia A patients. Haemophilia 2024; 30:671-677. [PMID: 38575549 DOI: 10.1111/hae.15013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/21/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
INTRODUCTION Primary prophylaxis is the gold standard in severe haemophilia A (SHA) but time to escalate the prophylaxis regimen varies. AIM Assess prophylaxis implementation and long-term joint health outcomes in SHA with primary prophylaxis. METHODS Adult male patients born after 1980, with SHA on primary prophylaxis, started before the age of 3 years and second joint bleed, and no history of FVIII inhibitors, were enrolled. Repeated joint-health examinations were performed with HJHS or HEAD-US; VERITAS-PRO assessed adherence. RESULTS Thirty patients were enrolled with, at inclusion, median age 33.5 years, annualized bleed rate and joint bleed rate 0, and FVIII consumption 4232 IU/kg/year, respectively. The median age was 1.2 years, at prophylaxis start once weekly with a median FVIII dose of 47.7 IU/kg, and 1.7 years, by the time escalation to a final regimen had occurred, with a median infusion frequency of thrice weekly and FVIII dose 41.7 IU/kg, respectively. Older age correlated with later transition to escalated prophylaxis (p < .001). Longer time to escalated prophylaxis correlated to more bleeds (p < .001). Median HJHS increased slowly, reaching 4 at 35-40 years. HJHS at 15-20 years correlated with higher HJHS afterwards. Median total HEAD-US score was 1 and correlated with HJHS (p < .001). Median VERITAS-PRO score was 36, indicating good treatment adherence. CONCLUSION Primary prophylaxis is effective but does not completely prevent the gradual development of arthropathy in SHA. Joint assessments with HJHS should start at an early age, as they correlate with arthropathy in later life. Prophylaxis escalation should proceed expeditiously to prevent bleeds.
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Affiliation(s)
- Alexandros Arvanitakis
- Department of Translational Medicine, Lund University, Malmö, Sweden
- Department of Haematology, Oncology and Radiation Physics, Skåne University Hospital, Malmö, Sweden
| | - Caroline Jepsen
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Medicine, Coagulation Centre, Gothenburg, Sweden
| | - Nadine G Andersson
- Department for Paediatric Haematology and Oncology, Children's Hospital, Skåne University Hospital, Malmö, Sweden
- Department of Clinical Sciences, Paediatrics, Lund University, Malmö, Sweden
| | - Fariba Baghaei
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Medicine, Coagulation Centre, Gothenburg, Sweden
| | - Jan Astermark
- Department of Translational Medicine, Lund University, Malmö, Sweden
- Department of Haematology, Oncology and Radiation Physics, Skåne University Hospital, Malmö, Sweden
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Pochopien M, Tytuła A, Toumi M, Falk A, Martone N, Hakimi Z, Eriksson D. Cost-Effectiveness of Recombinant Factor IX Fc Prophylaxis and Recombinant Factor IX On-Demand Treatment in Patients with Haemophilia B Without Inhibitors. Adv Ther 2024:10.1007/s12325-024-02841-w. [PMID: 38652439 DOI: 10.1007/s12325-024-02841-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/11/2024] [Indexed: 04/25/2024]
Abstract
INTRODUCTION Recombinant factor IX (rFIX) and recombinant FIX Fc fusion protein (rFIXFc) are standard half-life and extended half-life FIX replacement therapies, respectively, and represent established treatment options indicated for adults and children with haemophilia B. These FIX replacement therapies can be administered as prophylaxis (to prevent bleeding) or 'on-demand' (to stop bleeding). This analysis aimed to estimate the cost-effectiveness of once-weekly prophylaxis with rFIXFc versus on-demand treatment with rFIX in patients with haemophilia B without inhibitors in the Italian healthcare setting. METHODS A Markov model was developed to assess a hypothetical cohort of adolescent or adult male patients (≥ 12 years) with haemophilia B (FIX level of ≤ 2 IU/dL) without inhibitors. Model inputs were derived from the pivotal phase 3 clinical studies for rFIXFc and rFIX, published literature and assumptions when published data were unavailable. The model employed a lifelong time horizon with 6-monthly transitions between health states, and it estimated total costs, total quality-adjusted life years (QALYs), number of bleeds, number of surgeries and incremental cost-effectiveness ratio. RESULTS rFIXFc prophylaxis was associated with lower total costs per patient (€5,308,625 versus €6,564,510) and greater total QALYs per patient (15.936 versus 11.943) compared with rFIX on-demand; rFIXFc prophylaxis was therefore the dominant treatment strategy. The model also demonstrated that rFIXFc prophylaxis was associated with fewer incremental bleeds (- 682.29) and surgeries (- 0.39) compared with rFIX on-demand. CONCLUSIONS rFIXFc prophylaxis provides improved health outcomes and lower costs, and represents a cost-effective treatment option compared with rFIX on-demand for adolescent and adult male patients with haemophilia B. This comparative assessment of cost-effectiveness should help to inform both clinicians and healthcare policy makers when making treatment decisions for patients with haemophilia B.
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Affiliation(s)
| | - Anna Tytuła
- Health Economics and Outcomes Research Department, Putnam PHMR, Kraków, Poland
| | - Mondher Toumi
- Department of Public Health, Aix-Marseille University, Marseille, France
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Gualtierotti R, Garagiola I, Mortarino M, Spena S, Romero-Lux O, Peyvandi F. Gender equity in hemophilia: need for healthcare, familial, and societal advocacy. Front Med (Lausanne) 2024; 11:1345496. [PMID: 38646558 PMCID: PMC11026857 DOI: 10.3389/fmed.2024.1345496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/11/2024] [Indexed: 04/23/2024] Open
Abstract
Hemophilia is a rare bleeding disorder caused by a genetic defect on chromosome X. It is inherited as an X-linked trait, and hence, it is more frequently diagnosed in males, whereas women have been traditionally considered only as carriers of the disease. However, the role of women in families of patients with hemophilia is pivotal. As mothers, sisters, daughters, and female partners of patients with hemophilia, they play a central role in the management of the patient, considering healthcare, social, and familial aspects, but they might be affected by the disease as well, particularly in regions where consanguinity is frequent. This paper aims to explore the involvement of women in hemophilia, including their carrier status, bleeding symptoms, treatment challenges, and psychosocial impact not only related to male patients, but also as patients affected with hemophilia themselves. We advocate health equity, equal access to healthcare for men and women with hemophilia and dedicated resources to improve the unique needs of the women dealing with hemophilia, ultimately leading to improved care and quality of life.
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Affiliation(s)
- Roberta Gualtierotti
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Isabella Garagiola
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Milan, Italy
| | - Mimosa Mortarino
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Milan, Italy
| | - Silvia Spena
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Milan, Italy
| | | | - Flora Peyvandi
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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10
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Carcao M, Selvaratnam V, Blatny J. How much prophylaxis is enough in haemophilia? Haemophilia 2024; 30 Suppl 3:86-94. [PMID: 38523288 DOI: 10.1111/hae.14964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 03/26/2024]
Abstract
INTRODUCTION Prophylaxis has become standard of care for all persons with haemophilia (PWH) with a severe phenotype. However, 'standard prophylaxis' with either factor or non-factor therapies (currently only emicizumab available) is prohibitively expensive for much of the world. We sought to address the question of 'How much prophylaxis is enough?' and 'Can it be individualized?' and specifically 'Can emicizumab be individualized?'. METHODS We reviewed the literature on prophylaxis in haemophilia since its inception in the 1950s to the present, the development of more and less intense factor prophylaxis regimens and their outcomes and additionally the published outcomes of prophylaxis with low dose emicizumab. RESULTS What these experiences collectively show is that low dose emicizumab does result in significant benefits to patients whilst being much less expensive than a "one size fits all" emicizumab prophylaxis approach. We also took note that some non-factor therapies still in development are individualized given that high doses of these can potentially put patients at risk. CONCLUSIONS Prophylaxis is now clearly accepted as standard of care for PWH with a severe phenotype but now in a very short time a large assortment of different treatment options for prophylaxis have become/are becoming available and the haemophilia community will need to determine how to best use these recognizing that no 'one treatment fits all'.
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Affiliation(s)
- Manuel Carcao
- Division of Haematology/Oncology; Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | | | - Jan Blatny
- Hospital Bory, Bratislava, Slovakia and Masaryk University, Brno, Czech Republic
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11
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Mancuso ME, Croteau SE, Klamroth R. Benefits and risks of non-factor therapies: Redefining haemophilia treatment goals in the era of new technologies. Haemophilia 2024; 30 Suppl 3:39-44. [PMID: 38481077 DOI: 10.1111/hae.14976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/21/2024] [Accepted: 02/21/2024] [Indexed: 04/22/2024]
Abstract
INTRODUCTION Over the last decades progress in haemophilia treatment has been remarkable and prophylaxis with clotting factor concentrates in haemophilia A and B has been established as the standard of care in individuals with haemophilia and a severe bleeding phenotype. Besides clotting factor products with prolonged half-life non-factor therapies were developed which enable prophylaxis via subcutaneous administration. Factor VIIIa mimetics like emicizumab facilitate the coagulation pathway and are used in routine clinical practice for indivdiduals with haemophilia A. Rebalancing therapeutic agents like fitusiran, concizumab, marstacimab and serpin PC block the anticoagulant pathway and clinical trials using these products in individuals with haemophilia A and B are ongoing. AIM AND METHODS A narrative review to asess the benefits and risks of non-factor therapies taking in to account re-defined haemophilia treatment goals. RESULTS Prophylaxis for prevention of bleeds using non-factor products by subcutaneous administration is effective and results in reductions of bleeding episodes in individuals with haemophilia A or B with and without inhibitors. The treatment with emicizumab showed tolerable safety both in clinical trials and long-term real-world observations with few thrombotic events. In some clinical trials with rebalancing therapies (fitusiran and concizumab) thrombotic events occurred. Monitoring of the haemostatic function of novel therapies especially with concomitant haemostatic treatment is not yet established. CONCLUSION With the advent of novel therapeutic agents including factor concentrates with ultra-long half-life and improved FVIIIa mimetics aimed at raising the bar of protection into the non-hemophilic range redefinition of haemophilia treatment goals is eagerly needed.
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Affiliation(s)
- Maria Elisa Mancuso
- Center for Thrombosis and Hemorrhagic Diseases, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
- Humanitas University, Pieve Emanuele, Milan, Italy
| | - Stacy E Croteau
- Boston Children's Hospital, Boston Hemophilia Center, Harvard Medical School, Boston, USA
| | - Robert Klamroth
- Department of Internal Medicine, Hemophilia Treatment Center, Vivantes Klinikum im Friedrichshain, Berlin, Germany
- Institute of Experimental Hematology and Transfusion Medicine, University Hospital Bonn, Medical Faculty, University of Bonn, Bonn, Germany
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12
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Bakeer N, Saied W, Gavrilovski A, Bailey C. Haemophilic arthropathy: Diagnosis, management, and aging patient considerations. Haemophilia 2024; 30 Suppl 3:120-127. [PMID: 38578694 DOI: 10.1111/hae.15004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/07/2024]
Abstract
Gene therapy and universal use of safer, more effective, and personalised prophylactic regimens (factor, and nonfactor) are expected to prevent joint bleeding and promote joint health in persons with haemophilia (PwH). Growing evidence suggests that subclinical bleeding, with active and inactive synovial proliferation, continues and haemophilic arthropathy remains a major morbidity in PwH despite early institution of joint prophylaxis. Joint health assessment is evolving with physical examination scores complementing imaging scores. Point-of-care ultrasound is emerging as a safe, cost-effective, and readily available tool for acute determination of musculoskeletal abnormalities, serial evaluation of joints for sonographic markers of haemophilic arthropathy, and in providing objective insight into the efficacy of new therapies. In acute haemarthrosis, arthrocentesis expedites recovery and prevent the vicious cycle of bleed-synovitis-rebleed. When synovial proliferation develops, a multidisciplinary team approach is critical with haematology, orthopaedics, and physiotherapy involvement. Synovectomy is considered for patients with chronic synovitis that fail conservative management. Non-surgical and minimally invasive procedures should always be offered and considered first. Careful patient selection, screening and early intervention increase the success of these interventions in reducing bleeding, pain, and improving joint function and quality of life. Chemical synovectomy is practical in developing countries, but radioactive synovectomy appears to be more effective. When surgical synovectomy is considered, arthroscopic/minimally invasive approach should be attempted first. In advanced haemophilic arthropathy, joint replacement and arthrodesis can be considered. While excited about the future of haemophilia management, navigating musculoskeletal challenges in the aging haemophilia population is equally important.
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Affiliation(s)
- Nihal Bakeer
- Indiana Haemophilia and Thrombosis Centre, Indianapolis, Indiana, USA
- Children's Hospital of Philadelphia, Pennsylvania, USA
| | - Walid Saied
- Department of Paediatric Orthopaedic Surgery, Children's Hospital "Bechir HAMZA", Medical School of Tunis, University Tunis-El Manar, Tunis, Tunisia
| | - Antonio Gavrilovski
- University Clinic for Orthopaedic Surgery-TOARILUC, Clinical Centre Mother Theresa Skopje, Skopje, North Macedonia
| | - Cindy Bailey
- Orthopaedic Haemophilia Treatment Centre at Orthopaedic Institute for Children Los Angeles, Los Angeles, California, USA
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13
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Doshi BS, Samelson-Jones BJ, Nichols TC, Merricks EP, Siner JL, French RA, Lee BJ, Arruda VR, Callan MB. AAV gene therapy in companion dogs with severe hemophilia: Real-world long-term data on immunogenicity, efficacy, and quality of life. Mol Ther Methods Clin Dev 2024; 32:101205. [PMID: 38374963 PMCID: PMC10875295 DOI: 10.1016/j.omtm.2024.101205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/30/2024] [Indexed: 02/21/2024]
Abstract
The hemophilias are the most common severe inherited bleeding disorders and are caused by deficiency of clotting factor (F) VIII (hemophilia A) or FIX (hemophilia B). The resultant bleeding predisposition significantly increases morbidity and mortality. The ability to improve the bleeding phenotype with modest increases in clotting factor levels has enabled the development and regulatory approval of adeno-associated viral (AAV) vector gene therapies for people with hemophilia A and B. The canine hemophilia model has proven to be one of the best predictors of therapeutic response in humans. Here, we report long-term follow-up of 12 companion dogs with severe hemophilia that were treated in a real-world setting with AAV gene therapy. Despite more baseline bleeding than in research dogs, companion dogs demonstrated a 94% decrease in bleeding rates and 61% improvement in quality of life over a median of 4.1 years (range 2.6-8.9). No new anti-transgene immune responses were detected; one dog with a pre-existing anti-FVIII inhibitor achieved immune tolerance with gene therapy. Two dogs expressing 1%-5% FVIII post gene therapy experienced fatal bleeding events. These data suggest AAV liver-directed gene therapy is efficacious in a real-world setting but should target expression >5% and closely monitor those with levels in the 1%-5% range.
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Affiliation(s)
- Bhavya S. Doshi
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Benjamin J. Samelson-Jones
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Timothy C. Nichols
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC 27516, USA
| | - Elizabeth P. Merricks
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina, Chapel Hill, NC 27516, USA
| | - Joshua L. Siner
- Divisions of Hematology and Medical Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Robert A. French
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Ben J. Lee
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Valder R. Arruda
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Mary Beth Callan
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Kempton CL, Fedewa SA. Defining the impact of immune tolerance induction on clinically relevant outcomes in a US cohort of severe hemophilia A. Blood Adv 2024; 8:1190-1199. [PMID: 38163316 PMCID: PMC10910121 DOI: 10.1182/bloodadvances.2023011974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024] Open
Abstract
ABSTRACT Although the near-term benefit of immune tolerance induction (ITI) for the treatment of people with severe hemophilia A with inhibitor is apparent, the magnitude of the longer-term impact of ITI on clinical outcomes remains undefined. We examined the association between receiving ITI and the success of ITI on clinical outcomes including (1) clinical events, (2) health care use, (3) quality of life/function, (4) socioeconomic status, and (5) death, using the Community Counts (CC) registry of US Hemophilia Treatment Centers between 2013 and 2017. Multivariate logistic regression, negative binomial, and Poisson models were used. Included in this study were 3659 people with severe hemophilia A with median age of 21 years when entering the CC registry. Among 576 participants with inhibitors, 485 had received ITI (84%). ITI was successful in 299 (61.7%) and partially successful or failed in 95 (19.5%) or 91 (18.7%), respectively. Those that received ITI had fewer treated bleeds, less chronic pain, better function, and higher educational attainment than those not receiving ITI. Successful vs partially successful and failed ITI was associated with fewer treated bleeds, less health care use, less chronic pain, better function, and fewer missed days of school or work. Mortality was not associated with ITI, regardless of its success. Those with successful ITI had similar rates of treated bleeds, chronic pain, and health care use as those with no inhibitors. Undergoing ITI, particularly if successful, improved clinical outcomes but not mortality. These findings support decision making regarding initiation of ITI and inform future clinical trials.
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Affiliation(s)
- Christine L. Kempton
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA
- Hemophilia of Georgia Center for Bleeding & Clotting Disorders of Emory, Emory University School of Medicine, Atlanta, GA
| | - Stacey A. Fedewa
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA
- Hemophilia of Georgia Center for Bleeding & Clotting Disorders of Emory, Emory University School of Medicine, Atlanta, GA
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15
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Holme PA, Poulsen LH, Tueckmantel C, Maas Enriquez M, Alvarez Román MT, De Cristofaro R. Safety and efficacy of damoctocog alfa pegol prophylaxis in patients with severe haemophilia A: Results of an interventional, post-marketing study. Haemophilia 2024; 30:388-394. [PMID: 38229269 DOI: 10.1111/hae.14930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 01/18/2024]
Abstract
INTRODUCTION Damoctocog alfa pegol (BAY 94-9027, Jivi® ) is an approved extended half-life factor VIII (FVIII) for treatment of previously treated patients with haemophilia A aged ≥12 years. We report the final results of an interventional, post-marketing study of damoctocog alfa pegol prophylaxis in patients with severe haemophilia A. METHODS In this open-label, interventional, post-marketing, phase 4 trial (NCT04085458), previously FVIII-treated patients with severe haemophilia A aged ≥18 years received damoctocog alfa pegol for ≥100 exposure days (EDs). Patients initially received 45 IU/kg every 5 days (recommended) or 40 IU/kg twice-weekly. At Visit 3, patients' doses could be increased, or treatment frequency adapted. The primary endpoint was FVIII inhibitor development (titre ≥.6 Bethesda units). Secondary endpoints included anti-polyethylene glycol (PEG) antibody development, treatment-emergent adverse events (AEs) and annualized bleeding rate (ABR). RESULTS Overall, 36 patients were enrolled; 32 patients received treatment, of whom, 27 completed the study. No patients developed FVIII inhibitors; three tested transiently positive for low-titre anti-PEG antibodies without clinical relevance. Three patients reported study-drug-related AEs of mild or moderate intensity. Two patients discontinued the study due to AEs. No deaths occurred. Most patients (70%) were treated with E5D/E7D regimens. The median (Q1;Q3) total ABR (N = 30) was 3.0 (.0;9.0) pre-study and 1.8 (.7;5.9) during the study. CONCLUSION Damoctocog alfa pegol individualized prophylaxis regimens were well-tolerated with no immunogenicity concerns. ABRs improved following the switch from pre-study prophylaxis to damoctocog alfa pegol prophylaxis. These results support the favourable safety and efficacy profile of damoctocog alfa pegol prophylaxis.
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Affiliation(s)
- Pål André Holme
- Department of Haematology, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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16
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Merrill SA, Webber SE, Merrill LJ, Shmookler AD. Improved outcomes and cost savings for patients with bleeding disorders: a quality improvement project. Res Pract Thromb Haemost 2024; 8:102401. [PMID: 38706779 PMCID: PMC11066543 DOI: 10.1016/j.rpth.2024.102401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/28/2024] [Indexed: 05/07/2024] Open
Abstract
Background Providing optimal care for patients with bleeding disorders according to national standards remains a challenge at designated Hemophilia Treatment Centers (HTCs). Improved care may reduce bleeds and costs. Objectives To improve care and demonstrate cost savings by 1) reducing preventable hospitalizations and emergency room visits (PHER) for bleeding, 2) increasing use of prophylaxis in severe hemophilia, and 3) improving patient-HTC communication and primary care engagement. Methods Prospective quality improvement project using the Define, Measure, Analyze, Improve, and Control methodology to implement uniform guideline-based bleeding disorder care at a rural HTC (N = 88). Intervention used a standardized physician checklist, improved communication, and reserved physician time for urgent management. Outcomes were determined by retrospective chart review; urgent management was tracked prospectively. Results Intervention significantly reduced PHER by 85.4%. Use of prophylaxis in persons with severe hemophilia increased from 58.8% to 100%; attainment of a primary care physician and electronic portal enrollment met outcomes for intervention success. HTC clinic visit attendance was low at 55.2%. The majority of patients (71.6%) had at least 1 outpatient urgent episode (mean, 0.72 episode per year), and 93% had nonurgent management (mean, 9.3 episodes per year) occurring outside of a clinic visit. Hospital PHER factor cost in the group was reduced by 94.5%, from $11,800 to $640 per patient per year-a cost savings of $982,088 yearly. Conclusion This collaborative study shows that implementation of a carefully designed quality improvement project, such as uniform guidelines with focus on strengthening ambulatory management, led to improved outcomes and cost savings.
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Affiliation(s)
- Samuel A. Merrill
- Department of Medicine, Section of Hematology/Oncology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
| | - Sylvia E. Webber
- Department of Medicine, Section of Hematology/Oncology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
| | - Laura J. Merrill
- Department of Obstetrics and Gynecology, Weirton Medical Center, Weirton, West Virginia, USA
| | - Aaron D. Shmookler
- Department of Pathology and Laboratory Medicine, University of Kentucky College of Medicine, Lexington, Kentucky, USA
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17
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Laffan M, McLaughlin P, Motwani J, Alamelu J, Austin S, Classey S, Dolan G, Eales M, Gooding R, Grainger J, Harrison C, Jones A, Kelly AM, Oyesiku L, Rodgers R, Stephensen D, Talks K, Sonecha S, Danquah A. Expert United Kingdom consensus on the preservation of joint health in people with moderate and severe haemophilia A: A modified Delphi panel. Haemophilia 2024; 30:306-319. [PMID: 38239180 DOI: 10.1111/hae.14934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/20/2023] [Accepted: 12/30/2023] [Indexed: 02/29/2024]
Abstract
AIM For people with haemophilia A (PwHA), bleeding in the joints leads to joint damage and haemophilia-related arthropathy, impacting range of motion and life expectancy. Existing guidelines for managing haemophilia A support healthcare professionals (HCPs) and PwHA in their efforts to preserve joint health. However, such guidance should be reviewed, considering emerging evidence and consensus as presented in this manuscript. METHODS Fifteen HCPs experienced in the management of PwHA in the UK participated in a three-round Delphi panel. Consensus was defined at ≥70% of panellists agreeing or disagreeing for Likert-scale questions, and ≥70% selecting the same option for multiple- or single-choice questions. Questions not reaching consensus were revised for the next round. RESULTS 26.8% (11/41), 44.8% (13/29) and 93.3% (14/15) of statements reached consensus in Rounds 1, 2 and 3, respectively. HCPs agreed that prophylaxis should be offered to patients with a baseline factor VIII (FVIII) level of ≤5 IU/dL and that, where there is no treatment burden, the aim of prophylaxis should be to achieve a trough FVIII level ≥15 IU/dL and maintain a longer period with FVIII levels of ≥20-30 IU/dL to provide better bleed protection. The aspirational goal for PwHA is to prevent all joint bleeds, which may be achieved by maintaining normalised (50-150 IU/dL) FVIII levels. CONCLUSION The panel of experts were largely aligned on approaches to preserving joint health in PwHA, and this consensus may help guide HCPs.
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Affiliation(s)
- Mike Laffan
- Centre for Haematology, Imperial College London, London, UK
| | - Paul McLaughlin
- Katharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free London NHS Foundation Trust, London, UK
| | - Jayashree Motwani
- Department of Paediatric Haematology, Birmingham Children's Hospital, Birmingham, UK
| | - Jayanthi Alamelu
- Paediatric Haematology, Evelina London Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Steve Austin
- Department of Haematology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Stephen Classey
- Centre for Haemostasis and Thrombosis, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Gerard Dolan
- Centre for Haemostasis and Thrombosis, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Marie Eales
- The Children's Team at Oxford Haemophilia and Thrombosis Comprehensive Care Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Richard Gooding
- Haematology Department, Belfast Health and Social Care Trust, Belfast, UK
| | - John Grainger
- Paediatric Haematology, Royal Manchester Children's Hospital, Manchester, UK
| | - Catherine Harrison
- Sheffield Haemophilia & Thrombosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - April Jones
- Newcastle Haemophilia Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - Anne M Kelly
- Haemophilia Comprehensive Care Centre, Great Ormond Street Hospital, London, UK
| | - Lara Oyesiku
- Southern Haemophilia Network, Basingstoke and North Hampshire Hospital, Hampshire Hospitals NHS Foundation Trust, Basingstoke, Hampshire, UK
| | - Ryan Rodgers
- Department of Haematology, Glasgow Royal Infirmary, Glasgow, UK
| | - David Stephensen
- Kent Haemophilia Centre, Kent and Canterbury Hospital, Canterbury, Kent, UK
| | - Kate Talks
- Newcastle Haemophilia Centre, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
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18
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Goedhart TM, Bukkems LH, Zwagemaker AF, Coppens M, Fijnvandraat K, Schols SE, Schutgens RE, Eikenboom J, Heubel-Moenen FC, Ypma PF, Nieuwenhuizen L, Meijer K, Leebeek FW, Mathôt RA, Cnossen MH. Predictive performance of pharmacokinetic-guided prophylactic dosing of factor concentrates in hemophilia A and B. Res Pract Thromb Haemost 2024; 8:102397. [PMID: 38689619 PMCID: PMC11058079 DOI: 10.1016/j.rpth.2024.102397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 05/02/2024] Open
Abstract
Background Pharmacokinetic (PK)-guided dosing is used to individualize factor (F)VIII and FIX replacement therapy. Objectives This study investigates the reliability and feasibility of PK-guided prophylactic dosing of factor concentrates in hemophilia A and B. Methods In this multicenter, prospective cohort study, people of all ages with hemophilia received prophylactic treatment with factor concentrates based on individual PK parameters. During follow-up, at least 4 measured FVIII/FIX levels per patient were compared with corresponding predicted levels obtained by Bayesian forecasting. Predictive performance was defined as adequate when ≥80% of measured FVIII/FIX levels were within ±25% of prediction (relative error). Additionally, mean absolute error and mean error were calculated. In post hoc analyses, predictive performance was assessed allowing maximum absolute errors of 1 (trough), 5 (mid), and 15 (peak) IU/dL. Five-point scale questionnaires addressed feasibility of PK guidance. Results We included 50 patients (median age, 19 years; range: 2-72 years). Median follow-up was 36 weeks. Seventy-one percent of levels (58% trough, 83% mid, and 80% peak) were within ±25% of prediction. Mean absolute errors were 0.8 (trough), 2.0 (mid), and 8.6 (peak) IU/dL. In post hoc analyses, 81% (trough), 96% (mid), and 82% (peak) of levels were within set limits. Patients reported low burden and high satisfaction. Conclusion PK-guided dosing was reliable according to post hoc analyses, based on low absolute errors that were regarded as clinically irrelevant in most cases. The predefined predictive performance was achieved in mid and peak factor levels but not in trough factor levels due to measurement inaccuracy. PK guidance also seemed feasible.
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Affiliation(s)
- Tine M.H.J. Goedhart
- Department of Pediatric Hematology and Oncology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Laura H. Bukkems
- Department of Clinical Pharmacology—Hospital Pharmacy, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Anne-Fleur Zwagemaker
- Department of Pediatric Hematology, Amsterdam UMC, University of Amsterdam, Emma Children’s Hospital, Amsterdam, the Netherlands
| | - Michiel Coppens
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension & Thrombosis, Amsterdam, the Netherlands
| | - Karin Fijnvandraat
- Department of Pediatric Hematology, Amsterdam UMC, University of Amsterdam, Emma Children’s Hospital, Amsterdam, the Netherlands
| | - Saskia E.M. Schols
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, the Netherlands
| | - Roger E.G. Schutgens
- Van Creveldkliniek, Center for Benign Haematology, Thrombosis and Haemostasis, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Jeroen Eikenboom
- Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Paula F. Ypma
- Department of Hematology, Haga Hospital, the Hague, the Netherlands
| | | | - Karina Meijer
- Department of Hematology, University Medical Center Groningen, Groningen, the Netherlands
| | - Frank W.G. Leebeek
- Department of Hematology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Ron A.A. Mathôt
- Department of Clinical Pharmacology—Hospital Pharmacy, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Marjon H. Cnossen
- Department of Pediatric Hematology and Oncology, Erasmus MC Sophia Children’s Hospital, University Medical Center Rotterdam, Rotterdam, the Netherlands
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19
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Rodriguez-Merchan EC, De la Corte-Rodriguez H, Gomez-Cardero P, Alvarez-Roman MT, Jimenez-Yuste V. Arthroscopic ankle surgery in people with haemophilia. Haemophilia 2024; 30:286-294. [PMID: 38379188 DOI: 10.1111/hae.14967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/30/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024]
Abstract
INTRODUCTION People with haemophilia (PWH) not administered primary haematological prophylaxis since childhood, that is, those treated haematologically on demand or not treated at all, often experience the degeneration of the ankles, leading to pain and functional impairment. AIM To analyse the outcomes and complications of arthroscopic ankle surgery performed on PWH. METHODS For this narrative review of the literature, a search was conducted in PubMed on 2, December 2023, using the keywords "haemophilia", "ankle" and "arthroscopy". Of the 29 articles identified, 15 specifically related to ankle arthroscopy in PWH were selected (inclusion criterion). The remaining articles did not meet this requirement (exclusion criterion) and were therefore eliminated. RESULTS Arthroscopic procedures (arthroscopic synovectomy, debridement and arthrodesis of the ankle) are increasingly used in the surgical treatment of haemophilic ankle arthropathy. Although arthroscopic ankle surgery offers good outcomes in patients with haemophilia, the procedure is not free of complications, which range from 7.9% for arthroscopic ankle debridement to 13.1% in arthroscopic ankle synovectomy and 17.8% in arthroscopic ankle arthrodesis, respectively. The non-union rate of arthroscopic ankle arthrodesis is 7.1% (2/28). CONCLUSION Although arthroscopic interventions in the haemophilic ankle (synovectomy, debridement, arthrodesis) offer good functional outcomes, they are associated with a non-negligible rate of complications. Arthroscopic ankle surgery in PWH is major surgery and should be treated as such.
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Affiliation(s)
- E Carlos Rodriguez-Merchan
- Department of Orthopedic Surgery, La Paz University Hospital, Madrid, Spain
- Osteoarticular Surgery Research, La Paz Hospital Institute for Health Research - IdiPAZ (La Paz University Hospital - Autonomous University of Madrid), Madrid, Spain
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20
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Chiari JB, Prozora S, Feinn R, Louizos E, Gallagher PG, Bona R. Joint bleeds in mild hemophilia: Prevalence and clinical characteristics. Haemophilia 2024; 30:331-335. [PMID: 38240020 DOI: 10.1111/hae.14939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 12/12/2023] [Accepted: 01/05/2024] [Indexed: 03/14/2024]
Abstract
INTRODUCTION Joint bleeds are a common and frequent complication associated with hemophilia, increasing the risk of hemophilic arthropathy. It is important to define and characterize the presence of joint complications in mild hemophilia to develop strategies to mitigate disease burden. AIMS To characterize the prevalence, clinical characteristics of joint bleeds, and risk factors that may lead to hemarthrosis in people with mild hemophilia. METHODS Following Institutional Review Board approval, a retrospective chart review was conducted for patients with mild hemophilia seen at the Yale Hemophilia Treatment Center or Classical Hematology Program. RESULTS The medical records of 70 patients were reviewed. Eighty one percent were male and 19 percent were female. Twenty individuals with mild hemophilia had a history of joint bleeding, 13 were traumatic bleeds, 7 were spontaneous. The age of first joint bleed ranged from 4 to 58 years old, with an average age of 20.8-years old. Ten patients developed joint bleeds between the ages of 10 and 20 years old. The most common locations of joint bleeding were the knee (n = 11) and ankle (n = 7). Eight of 70 patients had hepatitis C (HCV), 6 experienced joint bleeding. CONCLUSIONS In this study, almost one third of patients with mild hemophilia experienced joint bleeding, often without history of trauma. Joint range of motion was abnormal in more than a third of the patients with mild hemophilia regardless. These data highlight the need for ongoing evaluation and characterization of joint health in individuals with mild hemophilia. HIGHLIGHTS Twenty-nine percent of individuals with mild hemophilia had history of joint bleed. PwH and mild diseases with previous or current hepatitis C had higher likelihood of joint bleeding. Approximately 15% of PwH and mild diseases had abnormal joint examinations without a confirmed history of joint bleeding.
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Affiliation(s)
- John B Chiari
- Department of Surgery, Memorial Health University Medical Center, Savannah, Georgia, USA
| | - Stephanie Prozora
- Department of Pediatrics, Hemophilia Treatment Center, Yale School of Medicine, New Haven, Connecticut, USA
| | - Richard Feinn
- Frank H. Netter School of Medicine, Department of Medical Sciences, Quinnipiac University, North Haven, Connecticut, USA
| | - Evangelia Louizos
- Department of Pediatrics, Hemophilia Treatment Center, Yale School of Medicine, New Haven, Connecticut, USA
| | - Patrick G Gallagher
- Wexner Research Institute at Nationwide Children's Hospital, Department of Pediatrics, Ohio State University, Columbus, Ohio, USA
| | - Robert Bona
- Department of Medicine, Hemophilia Treatment Center, Yale School of Medicine, New Haven, Connecticut, USA
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21
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Matino D, Germini F, Chan AKC, Decker K, Iserman E, Chelle P, Edginton AN, Oladoyinbo O, Trinari E, Keepanasseril A, Iorio A. Canadian clinical experience on switching from standard half-life recombinant factor VIII (rFVIII), octocog alfa, to extended half-life rFVIII, damoctocog alfa pegol, in persons with haemophilia A ≥ 12 years followed in a Comprehensive Hemophilia Care Program in Canada. Haemophilia 2024; 30:345-354. [PMID: 38379181 DOI: 10.1111/hae.14960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/22/2024]
Abstract
INTRODUCTION Damoctocog alfa pegol (BAY 94-9027, Jivi®) is an extended half-life recombinant factor (F)VIII replacement, indicated for the treatment of haemophilia A in patients aged ≥12 years. Following introduction of damoctocog alfa pegol in Canada in 2020, there have been no reports on routine clinical effectiveness and satisfaction, when switching from a previous FVIII product in Canada. AIM To report changes in pharmacokinetics, effectiveness, utilization and patient satisfaction when switching to damoctocog alfa pegol prophylaxis from previous standard half-life octocog alfa (BAY 81-8973, Kovaltry®) treatment. METHODS A single-centre, intra-patient comparison of pharmacokinetics and clinical outcomes was performed. Blood samples drawn once pre-dose and ≥2 times post-dose were measured by a one-stage assay to assess pharmacokinetic parameters including area under the curve (AUC, primary endpoint). Patient-reported outcomes data were collected using the Patient-Reported Outcomes, Burdens and Experiences questionnaire (PROBE). Clinical outcomes included annualized bleeding rate (ABR) and factor utilization. RESULTS Dose-normalized AUC was significantly increased after switch to damoctocog alfa pegol from octocog alfa. Median (quartile [Q]1; Q3) annualized bleeding rates were 0.67 (0.00; 1.33) with damoctocog alfa pegol and 1.33 (0.00; 2.67) with octocog alfa. Half of the patients receiving damoctocog alfa pegol prophylaxis experienced zero bleeds (n = 9, 50.0%) versus 38.9% (n = 7) of patients treated with octocog alfa. Patients' good quality of life was maintained. CONCLUSION This study provides routine clinical evidence supporting the benefits of switching from octocog alfa to damoctocog alfa pegol for patients with severe haemophilia A.
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Affiliation(s)
- Davide Matino
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Federico Germini
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - Anthony K C Chan
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Kay Decker
- Hamilton Health Sciences, McMaster Children's Hospital, Hamilton, Ontario, Canada
| | - Emma Iserman
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Pierre Chelle
- School of Pharmacy, University of Waterloo, Waterloo, Ontario, Canada
| | - Andrea N Edginton
- School of Pharmacy, University of Waterloo, Waterloo, Ontario, Canada
| | | | - Elisabetta Trinari
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Arun Keepanasseril
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Alfonso Iorio
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
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22
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Leuci A, Enjolras N, Marano M, Daniel M, Brevet M, Connes P, Dargaud Y. Extravascular factor IX pool fed by prophylaxis is a true hemostatic barrier against bleeding. J Thromb Haemost 2024; 22:700-708. [PMID: 38072379 DOI: 10.1016/j.jtha.2023.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/06/2023] [Accepted: 11/29/2023] [Indexed: 01/01/2024]
Abstract
BACKGROUND Factor (F)IX can bind to type IV collagen in the endothelial basement membrane and diffuse into extravascular spaces. Previous studies in rodents have reported a large biodistribution of FIX. OBJECTIVES The aim of the study was to evaluate the potential hemostatic activity of extravascular FIX and its role in protecting against joint bleeds. METHODS The capacity of 4 different FIX molecules (plasma-derived and recombinant) to bind type I and type IV collagen was studied here. FIX molecules were also administered intravenously at doses of 50 to 3000 IU/kg in FIX knockout mice. RESULTS A specific FIX signal was detected in immunohistochemistry in the liver as well as in muscles and knee joints with recombinant FIX molecules injected at 1000 and 3000 IU/kg but not at the usual clinical doses of 50 to 100 IU/kg, while plasma-derived FIX generated a FIX signal at all doses, including 50 IU/kg. Such a signal was also detected after five 100 IU/kg daily infusions of recombinant FIX, suggesting that FIX can accumulate in the extravascular space during prophylaxis. The extravascular procoagulant activity of FIX, assessed in saphenous vein bleeding assays, was significantly higher in hemophilia B mice after these 5 days of prophylaxis compared to a single infusion of 100 IU/kg of FIX and assessment of FIX activity 7 days later. CONCLUSION Taken together, these results show that in individuals with severe hemophilia B receiving regular prophylaxis with FIX, extravascular accumulation of FIX over time may have a significant impact on the coagulation capacity and protection toward bleeding.
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Affiliation(s)
- Alexandre Leuci
- UR4609 Hémostase et Thrombose, Université Claude Bernard Lyon 1, Lyon, France
| | - Nathalie Enjolras
- UR4609 Hémostase et Thrombose, Université Claude Bernard Lyon 1, Lyon, France
| | - Muriel Marano
- UR4609 Hémostase et Thrombose, Université Claude Bernard Lyon 1, Lyon, France
| | - Melanie Daniel
- UR4609 Hémostase et Thrombose, Université Claude Bernard Lyon 1, Lyon, France
| | | | - Philippe Connes
- Laboratoire interuniversitaire de Biologie de la Motricité EA7424, Team Vascular Biology and Red Blood Cell, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
| | - Yesim Dargaud
- UR4609 Hémostase et Thrombose, Université Claude Bernard Lyon 1, Lyon, France; Centre de Référence de l'Hémophilie, Unité d'Hémostase Clinique, Hospices Civils de Lyon, Lyon, France.
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23
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Álvarez-Román MT, Jiménez-Yuste V, Martín-Salces M, De la Corte-Rodríguez H, Bonanad S, Núñez R, Fernández-Mosteirín N, García-Frade LJ, Martinoli C, Kim HK. A post hoc comparative real-world analysis of HEAD-US score for joint health assessment of patients with severe haemophilia A and B in Spain. Haemophilia 2024; 30:513-522. [PMID: 38282205 DOI: 10.1111/hae.14924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 01/30/2024]
Abstract
AIM Joint damage due to haemarthrosis can be effectively monitored with point-of care ultrasound using the Haemophilia Early Arthropathy Detection with US (HEAD-US) scoring system. A post hoc comparative analysis of the joint status of patients with severe haemophilia A (HA) or B (HB) was performed. METHODS The databases of two observational, cross-sectional studies that recruited patients with HA or HB from 12 Spanish centres were analysed to compare the status of the elbows, knees and ankles in patients with severe disease according to treatment modality. The HEAD-US score was calculated in both studies by the same trained operators. RESULTS Overall, 95 HA and 41 HB severe patients were included, with a mean age of 35.2 ± 11.8 and 32.7 ± 14.2 years, respectively. The percentage of patients who received prophylaxis, over on-demand (OD) treatment, was much higher in HA (91.6%) than in HB (65.8%) patients. With a similar number of target joints, the HEAD-US score was zero in 6.3% HA and 22.0% HB patients (p < .01), respectively. The HA population showed significantly worse HEAD-US scores. Whilst osteochondral damage occurred more frequently in patients OD or tertiary prophylaxis, our data suggest that articular damage is less prominent in primary/secondary prophylaxis, regardless of the type of haemophilia. These latter treatment modalities were also associated with a lower prevalence of synovial hypertrophy, particularly in HB patients. CONCLUSION This post hoc analysis indicates that joint status seems to be significantly influenced by haemophilia type (HA or HB) and treatment modality in these severe Spanish populations with severe disease. Continuing HEAD-US monitoring for the early detection and management of intra-articular abnormalities, as well as more efficiently tailored therapies should be warranted.
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Affiliation(s)
| | | | | | | | | | - Ramiro Núñez
- Hospital Universitario Virgen del Rocio, Seville, Spain
| | | | | | - Carlo Martinoli
- Department of Health Sciences (DISSAL), Università di Genova, Genova, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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24
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Strilchuk AW, Hur WS, Batty P, Sang Y, Abrahams SR, Yong ASM, Leung J, Silva LM, Schroeder JA, Nesbitt K, de Laat B, Moutsopoulos NM, Bugge TH, Shi Q, Cullis PR, Merricks EP, Wolberg AS, Flick MJ, Lillicrap D, Nichols TC, Kastrup CJ. Lipid nanoparticles and siRNA targeting plasminogen provide lasting inhibition of fibrinolysis in mouse and dog models of hemophilia A. Sci Transl Med 2024; 16:eadh0027. [PMID: 38381848 DOI: 10.1126/scitranslmed.adh0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 01/31/2024] [Indexed: 02/23/2024]
Abstract
Antifibrinolytic drugs are used extensively for on-demand treatment of severe acute bleeding. Controlling fibrinolysis may also be an effective strategy to prevent or lessen chronic recurring bleeding in bleeding disorders such as hemophilia A (HA), but current antifibrinolytics have unfavorable pharmacokinetic profiles. Here, we developed a long-lasting antifibrinolytic using small interfering RNA (siRNA) targeting plasminogen packaged in clinically used lipid nanoparticles (LNPs) and tested it to determine whether reducing plasmin activity in animal models of HA could decrease bleeding frequency and severity. Treatment with the siRNA-carrying LNPs reduced circulating plasminogen and suppressed fibrinolysis in wild-type and HA mice and dogs. In HA mice, hemostatic efficacy depended on the injury model; plasminogen knockdown improved hemostasis after a saphenous vein injury but not tail vein transection injury, suggesting that saphenous vein injury is a murine bleeding model sensitive to the contribution of fibrinolysis. In dogs with HA, LNPs carrying siRNA targeting plasminogen were as effective at stabilizing clots as tranexamic acid, a clinical antifibrinolytic, and in a pilot study of two dogs with HA, the incidence of spontaneous or excess bleeding was reduced during 4 months of prolonged knockdown. Collectively, these data demonstrate that long-acting antifibrinolytic therapy can be achieved and that it provides hemostatic benefit in animal models of HA.
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Affiliation(s)
- Amy W Strilchuk
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver V6T 2A1, Canada
| | - Woosuk S Hur
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Paul Batty
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Yaqiu Sang
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sara R Abrahams
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Alyssa S M Yong
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Jerry Leung
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver V6T 2A1, Canada
| | - Lakmali M Silva
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jocelyn A Schroeder
- Blood Research Institute, Versiti, Milwaukee, WI 53226, USA
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Kate Nesbitt
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Bas de Laat
- Synapse Research Institute, Maastricht 6217 KM, Netherlands
| | - Niki M Moutsopoulos
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Thomas H Bugge
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Qizhen Shi
- Blood Research Institute, Versiti, Milwaukee, WI 53226, USA
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Pieter R Cullis
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver V6T 2A1, Canada
| | - Elizabeth P Merricks
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Alisa S Wolberg
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Matthew J Flick
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - David Lillicrap
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Timothy C Nichols
- Department of Pathology and Laboratory Medicine and UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Christian J Kastrup
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver V6T 2A1, Canada
- Blood Research Institute, Versiti, Milwaukee, WI 53226, USA
- Departments of Surgery, Biochemistry, Biomedical Engineering, and Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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25
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Ozelo MC, Hermans C, Carcao M, Guillet B, Gu J, Guerra R, Tang L, Khair K. The effectiveness and safety of octocog alfa in patients with hemophilia A: up to 7-year follow-up of the real-world AHEAD international study. Ther Adv Hematol 2024; 15:20406207231218624. [PMID: 38371314 PMCID: PMC10874143 DOI: 10.1177/20406207231218624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 11/16/2023] [Indexed: 02/20/2024] Open
Abstract
Background Real-world data assessing treatment outcomes in patients with hemophilia A in routine clinical practice are limited. Objective To evaluate the effectiveness and safety of octocog alfa in patients with moderate/severe hemophilia A receiving treatment in clinical practice. Design The international Antihemophilic Factor Hemophilia A Outcome Database study is an observational, noninterventional, prospective, multicenter study. Methods This planned interim data read-out was conducted following 7 years of observation of patients receiving octocog alfa (cut-off, 30 June 2020). The primary endpoint was joint health status, assessed by the Gilbert Score. Secondary endpoints included annualized bleeding rates (ABRs), Hemophilia Joint Health Score (HJHS), health-related quality of life, consumption, and safety. This post hoc analysis stratified data by hemophilia severity at baseline [moderate, factor VIII (FVIII) 1-5%; severe, FVIII <1%]. Results Of the 711 patients in this analysis, 582 (82%) were receiving prophylaxis with octocog alfa at enrollment, and 498 (70%) had severe disease. Median Gilbert Scores were higher with on-demand therapy versus prophylaxis and scores were comparable in moderate and severe disease. In patients receiving prophylaxis, there was an improvement in HJHS Global Gait Score over 7 years of follow-up overall and in patients with severe disease. ABRs and annualized joint bleeding rates were low across all 7 years. An ABR of zero was reported in 34-56% of prophylaxis patients versus 20-40% in the on-demand group. ABRs were similar in severe and moderate disease. In total, 13/702 (1.9%) patients experienced 18 treatment-related adverse events. Conclusion These data demonstrate the long-term effectiveness and safety of octocog alfa in patients with moderate and severe hemophilia A, especially in those receiving prophylaxis. The high number of patients receiving on-demand treatment experiencing zero bleeds could be due to selection bias within the study, with patients with less severe disease more likely to be receiving on-demand treatment. Trial registration ClinicalTrials.gov: NCT02078427.
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Affiliation(s)
| | - Cedric Hermans
- St-Luc University Hospital, Université catholique de Louvain, Louvain, Belgium
| | - Manuel Carcao
- Division of Haematology/Oncology, Hospital for Sick Children, Toronto, ON, Canada
| | - Benoît Guillet
- Haemophilia Treatment Center, Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Joan Gu
- Takeda Development Center Americas, Inc., Cambridge, MA, USA
| | - Randy Guerra
- Takeda Development Center Americas, Inc., 500 Kendal Street, Cambridge, MA 02142, USA
| | - Leilei Tang
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
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26
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Teranishi-Ikawa Y, Soeda T, Koga H, Yamaguchi K, Kato K, Esaki K, Asanuma K, Funaki M, Ichiki M, Ikuta Y, Ito S, Joyashiki E, Komatsu SI, Muto A, Nishimura K, Okuda M, Sanada H, Sato M, Shibahara N, Wakabayashi T, Yamaguchi K, Matsusaki A, Sampei Z, Shiraiwa H, Konishi H, Kawabe Y, Hattori K, Kitazawa T, Igawa T. A bispecific antibody NXT007 exerts a hemostatic activity in hemophilia A monkeys enough to keep a nonhemophilic state. J Thromb Haemost 2024; 22:430-440. [PMID: 37940048 DOI: 10.1016/j.jtha.2023.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/09/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Emicizumab, a factor (F) VIIIa-function mimetic bispecific antibody (BsAb) to FIXa and FX, has become an indispensable treatment option for people with hemophilia A (PwHA). However, a small proportion of PwHA still experience bleeds even under emicizumab prophylaxis, as observed in the long-term outcomes of clinical studies. A more potent BsAb may be desirable for such patients. OBJECTIVES To identify a potent BsAb to FIXa and FX, NXT007, surpassing emicizumab by in vitro and in vivo evaluation. METHODS New pairs of light chains for emicizumab's heavy chains were screened from phage libraries, and subsequent antibody optimization was performed. For in vitro evaluation, thrombin generation assays were performed with hemophilia A plasma. In vivo hemostatic activity was evaluated in a nonhuman primate model of acquired hemophilia A. RESULTS NXT007 exhibited an in vitro thrombin generation activity comparable to the international standard activity of FVIII (100 IU/dL), much higher than emicizumab, when triggered by tissue factor. NXT007 also demonstrated a potent in vivo hemostatic activity at approximately 30-fold lower plasma concentrations than emicizumab's historical data. In terms of dose shift between NXT007 and emicizumab, the in vitro and in vivo results were concordant. Regarding pharmacokinetics, NXT007 showed lower in vivo clearance than those shown by typical monoclonal antibodies, suggesting that the Fc engineering to enhance FcRn binding worked well. CONCLUSION NXT007, a potent BsAb, was successfully created. Nonclinical results suggest that NXT007 would have a potential to keep a nonhemophilic range of coagulation potential in PwHA or to realize more convenient dosing regimens than emicizumab.
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Affiliation(s)
| | - Tetsuhiro Soeda
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hikaru Koga
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan.
| | - Kazuki Yamaguchi
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kazuki Kato
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Keiko Esaki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kentaro Asanuma
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Miho Funaki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Mina Ichiki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Yuri Ikuta
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Shunsuke Ito
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Eri Joyashiki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | | | - Atsushi Muto
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kei Nishimura
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Momoko Okuda
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hisakazu Sanada
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Motohiko Sato
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Norihito Shibahara
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | | | - Koji Yamaguchi
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Akiko Matsusaki
- Translational Research Division, Chugai Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Zenjiro Sampei
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hirotake Shiraiwa
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hiroko Konishi
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Yoshiki Kawabe
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kunihiro Hattori
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Takehisa Kitazawa
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Tomoyuki Igawa
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan; Translational Research Division, Chugai Pharmaceutical Co., Ltd., Tokyo, Japan
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27
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van Vulpen LFD, Mastbergen SC, Foppen W, Fischer K, Lafeber FPJG, Schutgens REG. Towards Personalized Treatment in Haemophilia: The Role of Genetic Factors in Iron and Heme Control to Identify Patients at Risk for Haemophilic Arthropathy. J Pers Med 2024; 14:145. [PMID: 38392579 PMCID: PMC10890487 DOI: 10.3390/jpm14020145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
The treatment landscape for haemophilia is changing rapidly, creating opportunities for personalized treatment. As major morbidity is still caused by haemophilic arthropathy, understanding the factors affecting joint damage and joint damage progression might lead to more individualized treatment regimens. We investigated the association of HFE mutations or HMOX1 polymorphisms affecting iron/heme handling with radiographic joint damage in 252 haemophilia patients (severe and moderate). Although iron levels and transferrin saturation were significantly increased in the 95 patients with an HFE mutation, neither carrying this mutation nor the HMOX1 polymorphism was associated with radiographic joint damage, and the same was true after adjustment for well-known factors associated with arthropathy. In conclusion, this study does not support the hypothesis that HFE mutations or HMOX1 polymorphisms can be used to predict the development of haemophilic arthropathy.
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Affiliation(s)
- Lize F D van Vulpen
- Centre for Benign Hematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Postbus 85500, 3508 GA Utrecht, The Netherlands
| | - Simon C Mastbergen
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University Utrecht, 3508 GA Utrecht, The Netherlands
| | - Wouter Foppen
- Department of Radiology and Nuclear Medicine, Division of Imaging & Oncology, University Medical Center Utrecht, University Utrecht, 3508 GA Utrecht, The Netherlands
| | - Kathelijn Fischer
- Centre for Benign Hematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Postbus 85500, 3508 GA Utrecht, The Netherlands
| | - Floris P J G Lafeber
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University Utrecht, 3508 GA Utrecht, The Netherlands
| | - Roger E G Schutgens
- Centre for Benign Hematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Postbus 85500, 3508 GA Utrecht, The Netherlands
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Verhagen MJA, van Balen EC, Blijlevens NMA, Coppens M, van Heerde WL, Leebeek FWG, Rijpma SR, van Vulpen LFD, Gouw SC, Schols SEM. Patients with moderate hemophilia A and B with a severe bleeding phenotype have an increased burden of disease. J Thromb Haemost 2024; 22:152-162. [PMID: 37813197 DOI: 10.1016/j.jtha.2023.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/13/2023] [Accepted: 09/25/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Patients with moderate hemophilia express varying bleeding phenotypes. OBJECTIVES To assess the burden of disease in patients with moderate hemophilia and a mild or severe phenotype incorporating the thrombin generation profile. METHODS This sub-study of the 6th Hemophilia in the Netherlands study, analyzed data of adults with moderate hemophilia A or B. Patient characteristics and information on bleeding tendency, joint status, and quality of life were obtained from electronic patient files and self-reported questionnaires. A severe bleeding phenotype was defined as an annual bleeding rate ≥5, an annual joint bleeding rate ≥3, and/or the use of secondary/tertiary prophylaxis, and a mild phenotype vice versa. TG was measured with the Nijmegen Hemostasis Assay. RESULTS This study included 116 patients: 21% had a severe phenotype of whom 46% used prophylaxis. Patients with a severe phenotype treated on demand reported a higher median annual bleeding rate (7), annual joint bleeding rate (3), and more frequently an impaired joint (77%) than patients with a severe phenotype on prophylaxis (2; 0; 70%) or patients with a mild phenotype (0; 0; 47%). Furthermore, patients with a severe phenotype treated on demand experienced a more decreased quality of life. Despite similar factor activity levels, patients with a severe phenotype had a lower thrombin peak height and thrombin potential (0.7%; 0.06%) than patients with a mild phenotype (21.3%; 46.8%). CONCLUSION Patients with moderate hemophilia and a severe phenotype treated on demand displayed a high burden of disease as well as a low thrombin generation profile advocating them toward more intensive prophylactic treatment.
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Affiliation(s)
- Marieke J A Verhagen
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands; Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Nijmegen, the Netherlands; Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Erna C van Balen
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Nicole M A Blijlevens
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Michiel Coppens
- Department of Vascular Medicine and Haemophilia Treatment Center, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Waander L van Heerde
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands; Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Nijmegen, the Netherlands; Enzyre BV, Novio Tech Campus, Nijmegen, the Netherlands
| | - Frank W G Leebeek
- Department of Hematology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Sanna R Rijpma
- Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Nijmegen, 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
| | - Samantha C Gouw
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands; Amsterdam UMC Location University of Amsterdam, Department of Pediatric Hematology, Meibergdreef 9, Amsterdam, the Netherlands
| | - Saskia E M Schols
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands; Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Nijmegen, the Netherlands.
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Måseide RJ, Berntorp E, Astermark J, Olsson A, Bruzelius M, Frisk T, Nummi V, Lassila R, Tjønnfjord GE, Holme PA. Health-related quality of life and physical activity in Nordic patients with moderate haemophilia A and B (the MoHem study). Haemophilia 2024; 30:98-105. [PMID: 37983883 DOI: 10.1111/hae.14899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/12/2023] [Accepted: 11/04/2023] [Indexed: 11/22/2023]
Abstract
INTRODUCTION The impact of moderate haemophilia on health-related quality of life (HRQoL) and physical activity (PA) is not well known. In previous studies, persons with factor VIII/factor IX activity (FVIII/FIX:C) below 3 IU/dL were associated with a more severe bleeding phenotype than predicted. AIM To explore HRQoL and PA in patients with moderate haemophilia A (MHA) and B (MHB). METHODS A cross-sectional, multicentre study covering patients with MHA and MHB in Sweden, Finland, and Norway. HRQoL was assessed with the EuroQoL 5-Dimensions (EQ-5D) form and PA with the International Physical Activity Questionnaire among participants aged ≥15 years. RESULTS We report on 104 patients aged 15-84 years from the MoHem study. Overall, EQ-5D utility was .85 (median) (Q1-Q3 0.73-1.0) with corresponding visual analogue scale (VAS) 80 (70-90), which were similar regardless of treatment modality, FVIII/FIX:C, and MHA or MHB. Pain and mobility were most frequently affected dimensions. Utility (r = -.54), VAS (r = -.42), and PA (r = -.32) correlated negatively with arthropathy (HJHS). Only patients aged 41-50 years displayed lower utility (p = .02) and VAS (p < .01) than the Norwegian population norm. Patients on prophylaxis aged 35-54 years reported higher PA than those treated on-demand (p = .01). CONCLUSION Haemophilic arthropathy had negative impact on HRQoL and PA in Nordic patients with moderate haemophilia. Middle-aged patients captured lower utility and VAS than observed in the general population. Tailored prophylaxis and improved joint health may influence positively on HRQoL and PA also in moderate haemophilia.
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Affiliation(s)
- Ragnhild J Måseide
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Erik Berntorp
- Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Jan Astermark
- Department of Translational Medicine, Lund University, Malmö, Sweden
- Department of Haematology, Skåne University Hospital, Malmö, Sweden
| | - Anna Olsson
- Department of Medicine, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Maria Bruzelius
- Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
- Department of Haematology, Karolinska University Hospital, Stockholm, Sweden
| | - Tony Frisk
- Pediatric Coagulation, Karolinska University Hospital, Stockholm, Sweden
| | - Vuokko Nummi
- Coagulation Disorders Unit, Haematology, Comprehensive Cancer Centre, Helsinki University Hospital and Research Program in Systems Oncology, Faculty of Medicine, Helsinki University, Helsinki, Finland
| | - Riitta Lassila
- Coagulation Disorders Unit, Haematology, Comprehensive Cancer Centre, Helsinki University Hospital and Research Program in Systems Oncology, Faculty of Medicine, Helsinki University, Helsinki, Finland
| | - Geir E Tjønnfjord
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Pål A Holme
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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Gualtierotti R, Solimeno LP, Peyvandi F. Ultrasound evaluation of hemophilic arthropathy: a proposal of definitions in a changing landscape. Res Pract Thromb Haemost 2024; 8:102314. [PMID: 38322151 PMCID: PMC10844857 DOI: 10.1016/j.rpth.2023.102314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024] Open
Abstract
The advent of novel effective treatments and the identification of the need to achieve a higher trough level for persons with hemophilia A and B have changed the landscape of management of these patients, allowing to change the target from survival and prevention of life-threatening complications to prevention of musculoskeletal complications and improvement of quality of life. Point-of-care musculoskeletal ultrasound imaging has also improved the early recognition of joint bleeding and the differential diagnosis of acute joint pain. In addition, joint ultrasound allows the evaluation of the severity of hemophilic arthropathy in terms of synovitis and cartilage and bone damage. However, a lack of standardization in the definition of ultrasound elementary lesions of hemophilic arthropathy may lead to confusion and an incorrect evaluation of the presence and progression of joint damage. Here, we propose to start a standardization and validation process for ultrasound definitions of hemophilic arthropathy that has been planned to become a project within the Factor VIII/IX Standardization Subcommittee of the International Society on Thrombosis and Haemostasis Scientific and Standardization Committee.
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Affiliation(s)
- Roberta Gualtierotti
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Luigi Piero Solimeno
- Division of Orthopaedic Surgery and Traumatology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Flora Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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Atsou S, Schellenberg C, Lagrange J, Lacolley P, Lenting PJ, Denis CV, Christophe OD, Regnault V. Thrombin generation on vascular cells in the presence of factor VIII and/or emicizumab. J Thromb Haemost 2024; 22:112-125. [PMID: 37776978 DOI: 10.1016/j.jtha.2023.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/18/2023] [Accepted: 09/16/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND The effect of factor VIII (FVIII) or emicizumab on thrombin generation is usually assessed in assays using synthetic phospholipids. Here, we assessed thrombin generation at the surface of human arterial cells (aortic endothelial cells [hAECs] and aortic vascular smooth muscle cells [hVSMCs]). OBJECTIVES To explore the capacity of hAECs (resting or stimulated) and hVSMCs to support thrombin generation by FVIII or emicizumab. METHODS Primary hVSMCs and hAECs were analyzed for tissue factor (TF)-activity and antigen, phosphatidylserine (PS)-exposure, tissue factor pathway inhibitor (TFPI)-content and thrombomodulin expression. Cells were incubated with FVIII-deficient plasma spiked with FVIII, emicizumab, activated prothrombin complex concentrate (APCC) or combinations thereof. RESULTS TF activity and PS-exposure were present on both hVSMCs and hAECs. In contrast, thrombomodulin and TFPI were expressed on hAECs, while virtually lacking on hVSMCs, confirming the procoagulant nature of hVSMCs. Tumor necrosis factor α-mediated stimulation of hAECs increased not only TF antigen, TF activity, and PS-exposure but also TFPI and thrombomodulin expression. As expected, FVIII and emicizumab promoted thrombin generation on nonstimulated hAECs and hVSMCs, with more thrombin being generated on hVSMCs. Unexpectedly, FVIII and emicizumab increased thrombin generation to a lesser extent on stimulated hAECs compared with nonstimulated hAECs. Finally, adding emicizumab to FVIII did not further increase thrombin generation, whereas the addition of emicizumab to APCC resulted in exaggerated thrombin generation. CONCLUSION Tumor necrosis factor stimulation of hAECs increases both pro- and anticoagulant activity. Unexpectedly, the increased anticoagulant activity is sufficient to limit both FVIII- and emicizumab-induced thrombin generation. This protective effect disappears when emicizumab is combined with APCC.
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Affiliation(s)
- Sénadé Atsou
- Université Paris-Saclay, INSERM, Hémostase Inflammation Thrombose HITh U1176, 94276, Le KremLin-Bicêtre, France
| | - Célia Schellenberg
- Université de Lorraine, INSERM, Défaillance Cardiovasculaire Aigüe et Chronique DCAC U1116, 54505 Vandoeuvre-les-Nancy, France
| | - Jeremy Lagrange
- Université de Lorraine, INSERM, Défaillance Cardiovasculaire Aigüe et Chronique DCAC U1116, 54505 Vandoeuvre-les-Nancy, France
| | - Patrick Lacolley
- Université de Lorraine, INSERM, Défaillance Cardiovasculaire Aigüe et Chronique DCAC U1116, 54505 Vandoeuvre-les-Nancy, France
| | - Peter J Lenting
- Université Paris-Saclay, INSERM, Hémostase Inflammation Thrombose HITh U1176, 94276, Le KremLin-Bicêtre, France.
| | - Cécile V Denis
- Université Paris-Saclay, INSERM, Hémostase Inflammation Thrombose HITh U1176, 94276, Le KremLin-Bicêtre, France. https://twitter.com/InsermU1176
| | - Olivier D Christophe
- Université Paris-Saclay, INSERM, Hémostase Inflammation Thrombose HITh U1176, 94276, Le KremLin-Bicêtre, France
| | - Véronique Regnault
- Université de Lorraine, INSERM, Défaillance Cardiovasculaire Aigüe et Chronique DCAC U1116, 54505 Vandoeuvre-les-Nancy, France
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Rodriguez-Merchan EC. Ankle arthrodesis and total ankle replacement in patients with congenital bleeding disorders suffering from severe ankle arthropathy. Expert Rev Hematol 2024; 17:1-8. [PMID: 38131332 DOI: 10.1080/17474086.2023.2299301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/21/2023] [Indexed: 12/23/2023]
Abstract
INTRODUCTION In patients with congenital bleeding disorders suffering from severe ankle arthropathy, when conservative treatment and joint-preserving surgical techniques fail, there are two possible non-joint-preserving options: ankle arthrodesis (AA) and total ankle replacement (TAR). AREAS COVERED The scope and aim of this article was to analyze the current role of AA and TAR in patients with congenital bleeding disorders suffering from severe ankle arthropathy. EXPERT OPINION In patients with congenital bleeding disorders, both TAR and AA provide good results, mainly in terms of pain relief, although they are not exempt from complications (between 0% and 33% in TAR and between 5% and 23.5% in AA). The current controversy about which of the two surgical techniques, TAR or AA, gives better results, the current literature is not able to resolve it in patients with congenital bleeding disorders. While this question is being answered, my opinion regarding patients with congenital bleeding disorders is that the age of the patient must be taken into account. Given known prosthetic survival rates, the older the patient, the more we might be inclined to indicate TAR. Conversely, AA may be more appropriate for relatively young patients.
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Lissitchkov T, Jansen M, Bichler J, Knaub S. Safety, pharmacokinetics and efficacy of a subcutaneous recombinant FVIII (OCTA101) in adult patients with severe haemophilia A. Haemophilia 2024; 30:123-129. [PMID: 37975434 DOI: 10.1111/hae.14898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/10/2023] [Accepted: 10/29/2023] [Indexed: 11/19/2023]
Abstract
INTRODUCTION Regular, prophylactic intravenous (i.v.) FVIII can be challenging for some patients with haemophilia A. Subcutaneous (s.c.) FVIII administration could provide an alternative treatment option with greater convenience and without the complications associated with venous access. AIM To assess the safety, pharmacokinetics (PK), bioavailability and efficacy of s.c. OCTA101, a recombinant FVIII with a recombinant von Willebrand factor fragment dimer. METHODS This was a single-centre, prospective, open-label, phase I/II study (NCT04046848). Previously treated male patients (≥18 years) with severe haemophilia A were eligible for the study. The primary objective of the study was to assess the safety (including immunogenicity) of OCTA101. Secondary objectives included assessments of PK, bioavailability, and the efficacy of prophylaxis. RESULTS Thirty patients were treated with OCTA101. FVIII inhibitors developed in five (16.7%) patients during daily prophylaxis with 40-60 IU/kg (three cases) and 12.5 IU/kg (two cases) OCTA101. The trial was therefore terminated. OCTA101 had a 2.5-fold longer terminal half-life compared with i.v. rFVIII, and bioavailability was 16.6%. Efficacy data at study termination indicated that daily prophylaxis with 40-60 IU/kg OCTA101 was efficacious in the absence of FVIII inhibitors. CONCLUSIONS Despite promising PK and efficacy results, the trial was terminated due to the incidence of FVIII inhibitors. The occurrence of inhibitors at two dose levels suggests that their development may be related to the subcutaneous route of administration.
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Affiliation(s)
- Toshko Lissitchkov
- Clinic of Clinical Hematology, Specialised Hospital for Active Treatment of Haematological Diseases, Sofia, Bulgaria
| | - Martina Jansen
- Disorders of Haemostasis, Octapharma Pharmazeutika Produktionsgesellschaft m.b.H., Vienna, Austria
| | - Johann Bichler
- Disorders of Haemostasis, Octapharma AG, Lachen, Switzerland
| | - Sigurd Knaub
- Disorders of Haemostasis, Octapharma AG, Lachen, Switzerland
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Leuci A, Dargaud Y. Blood-Induced Arthropathy: A Major Disabling Complication of Haemophilia. J Clin Med 2023; 13:225. [PMID: 38202232 PMCID: PMC10779541 DOI: 10.3390/jcm13010225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/19/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Haemophilic arthropathy (HA) is one of the most serious complications of haemophilia. It starts with joint bleeding, leading to synovitis which, in turn, can cause damage to the cartilage and subchondral bone, eventually inducing degenerative joint disease. Despite significant improvements in haemophilia treatment over the past two decades and recent guidelines from ISTH and WFH recommending FVIII trough levels of at least 3 IU/dL during prophylaxis, patients with haemophilia still develop joint disease. The pathophysiology of HA is complex, involving both inflammatory and degenerative components. Early diagnosis is key for proper management. Imaging can detect joint subclinical changes and influence prophylaxis. Magnetic resonance imagining (MRI) and ultrasound are the most frequently used methods in comprehensive haemophilia care centres. Biomarkers of joint health have been proposed to determine osteochondral joint deterioration, but none of these biomarkers has been validated or used in clinical practice. Early prophylaxis is key in all severe haemophilia patients to prevent arthropathy. Treatment is essentially based on prophylaxis intensification and chronic joint pain management. However, there remain significant gaps in the knowledge of the mechanisms responsible for HA and prognosis-influencing factors. Better understanding in this area could produce more effective interventions likely to ultimately prevent or attenuate the development of HA.
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Affiliation(s)
- Alexandre Leuci
- UR4609 Hemostasis & Thrombosis Research Unit, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 69008 Lyon, France;
| | - Yesim Dargaud
- UR4609 Hemostasis & Thrombosis Research Unit, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 69008 Lyon, France;
- Unité d’Hémostase Clinique—Centre de Référence de l’Hémophilie, Hôpital Louis Pradel Hospices Civils de Lyon, 69002 Lyon, France
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Antonazzo IC, Cortesi PA, Zanon E, Pasca S, Morfini M, Santoro C, De Cristofaro R, Di Minno G, Cozzolino P, Mantovani LG. Personalized Prophylaxis with myPKFiT CE: A Real-World Cost-Effectiveness Analysis in Haemophilia A Patients. Medicina (Kaunas) 2023; 60:34. [PMID: 38256294 PMCID: PMC10820281 DOI: 10.3390/medicina60010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024]
Abstract
Background and Objectives: This study aimed to assess the effectiveness and costs associated with pharmacokinetics-driven (PK) prophylaxis based on the myPKFiT® device in patients affected by hemophilia A (HA) in Italy. Materials and Methods: An observational retrospective study was conducted in three Italian hemophilia centers. All patients with moderate or severe HA, aged ≥ 18 years, capable of having PK estimated using the myPKFiT device, and who had had a clinical visit between 1 November 2019 and 31 March 2022 were included. Differences in clinical, treatment, health resources, and cost data were assessed comparing post-PK prophylaxis with pre-PK. The incremental cost-effectiveness ratio (ICER) was estimated as cost (EUR) per bleed avoided. Results: The study enrolled 13 patients with HA. The mean annual bleeding rate decreased by -1.45 (-63.80%, p = 0.0055) after the use of myPKFiT®. Overall, the consumption of FVIII IU increased by 1.73% during follow-up compared to the period prior the use of the myPKFiT. Prophylaxis based on the myPKFiT resulted in an ICER of EUR 5099.89 per bleed avoided. Conclusions: The results of our study support the idea that the use of PK data in clinical practice can be associated with an improvement in the management of patients, as well as clinical outcomes, with a reasonable increase in costs.
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Affiliation(s)
- Ippazio Cosimo Antonazzo
- Research Centre on Public Health (CESP), University of Milan-Bicocca, 20900 Monza, Italy; (P.A.C.); (L.G.M.)
- IRCCS Istituto Auxologico Italiano, 20145 Milano, Italy
| | - Paolo Angelo Cortesi
- Research Centre on Public Health (CESP), University of Milan-Bicocca, 20900 Monza, Italy; (P.A.C.); (L.G.M.)
- IRCCS Istituto Auxologico Italiano, 20145 Milano, Italy
| | - Ezio Zanon
- Hemophilia Center, University Hospital of Padua, 35128 Padua, Italy;
| | - Samantha Pasca
- Laboratory Medicine, Department of Biomedical Sciences, Padua University Hospital, 35128 Padua, Italy;
| | - Massimo Morfini
- Italian Association of Haemophilia Centres—AICE, 50100 Firenze, Italy;
| | | | - Raimondo De Cristofaro
- Center for Haemorrhagic and Thrombotic Diseases, Department of Medical Sciences, Catholic University School of Medicine, ‘A. Gemelli’ Hospital, 00168 Rome, Italy;
| | - Giovanni Di Minno
- Department of Clinical Medicine and Surgery, Regional Service Centre of Coagulation Disorders, ‘Federico II’ University, 80138 Naples, Italy;
| | - Paolo Cozzolino
- Research Centre on Public Health (CESP), University of Milan-Bicocca, 20900 Monza, Italy; (P.A.C.); (L.G.M.)
| | - Lorenzo Giovanni Mantovani
- Research Centre on Public Health (CESP), University of Milan-Bicocca, 20900 Monza, Italy; (P.A.C.); (L.G.M.)
- IRCCS Istituto Auxologico Italiano, 20145 Milano, Italy
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Nomura S. Current Status and Challenges in Delivering Comprehensive Care for Patients with Hemophilia. J Blood Med 2023; 14:629-637. [PMID: 38125786 PMCID: PMC10730945 DOI: 10.2147/jbm.s446204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
The importance of comprehensive care as a treatment strategy for patients with hemophilia is recognized worldwide. Comprehensive care entails addressing full spectrum of medical and psychological aspects impacting both patients and their families. The primary objective of comprehensive care for individuals with hemophilia is to enable them to lead their daily lives just as anyone else would. To achieve this goal, it is necessary to have a positive and collaborative approach across various healthcare disciplines. This extends beyond clinical specialists, encompassing pediatricians, hematologists, orthopedic surgeons, dental and oral surgeons, gynecologists, nurses, physical therapists, clinical psychologists, and other professionals from diverse fields. This review article discusses the current status and challenges associated with comprehensive care for patients with hemophilia. We categorize these challenges as follows: hemophilic arthritis, rehabilitation, oral care, transitioning from pediatric to adult care, addressing carrier issues, and providing psychological care. There is still substantial work to be undertaken in addressing these hurdles and advancing the quality of comprehensive care for hemophilia patients.
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Affiliation(s)
- Shosaku Nomura
- Center of Thrombosis and Hemostasis, Kansai Medical University Medical Center, Moriguchi, Osaka, Japan
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Shimonishi N, Sasai K, Ogiwara K, Furukawa S, Nakajima Y, Mizumachi K, Yada K, Takeyama M, Shima M, Mizuno N, Nogami K. Longitudinal dynamic changes in factor VIII inhibitor titers in patients with hemophilia A and inhibitors receiving emicizumab prophylaxis. Int J Hematol 2023; 118:690-698. [PMID: 37803190 DOI: 10.1007/s12185-023-03667-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 10/08/2023]
Abstract
Emicizumab prophylaxis dramatically reduces bleeding events in patients with hemophilia A (PwHA) with or without factor VIII (FVIII) inhibitors. However, long-term dynamic changes in FVIII inhibitor titers during emicizumab prophylaxis remain to be investigated. We conducted a retrospective follow-up study of FVIII inhibitor titers after initiation of emicizumab prophylaxis in 25 PwHA carrying current or historical FVIII inhibitors. Nineteen PwHA had FVIII inhibitors at initiation of emicizumab prophylaxis (age: median 22 [range 4-60] years and inhibitor titer: 30 [1.0-1450] BU/mL). In 17 of the 19 patients, the inhibitor titers markedly decreased to a median of 1.2 (< 0.6-58) BU/mL at a median follow-up of 71 (38-111) months. In two patients, titers were slightly elevated after initiation of emicizumab but decreased in the long term. The remaining six patients had negative inhibitor status (< 0.6 BU/mL) when switched to emicizumab from FVIII prophylaxis. Five patients maintained negative titers. One patient had inhibitor recurrence, with a peak titer of 1.6 BU/mL that decreased to 0.9 BU/mL. In most cases, FVIII inhibitor titers can be expected to decrease spontaneously during emicizumab prophylaxis, but regular follow-up is necessary to manage breakthrough bleeds.
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Affiliation(s)
- Naruto Shimonishi
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan.
- The Course of Thrombosis and Hemostasis Molecular Pathology, Nara Medical University, Kashihara, Nara, Japan.
| | - Kana Sasai
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Kenichi Ogiwara
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Shoko Furukawa
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Yuto Nakajima
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
- Advanced Medical Science of Thrombosis and Hemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Kuniyoshi Mizumachi
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Koji Yada
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
- Division of Hemophilia, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Masahiro Takeyama
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Midori Shima
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
- The Course of Thrombosis and Hemostasis Molecular Pathology, Nara Medical University, Kashihara, Nara, Japan
- Advanced Medical Science of Thrombosis and Hemostasis, Nara Medical University, Kashihara, Nara, Japan
| | | | - Keiji Nogami
- Department of Pediatrics, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
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Kraemmer D, Königsbrügge O, Moik F, Wildner B, Ay C, Pabinger I. Pharmacokinetic-guided versus standard prophylaxis in hemophilia: a systematic review and meta-analysis. J Thromb Haemost 2023; 21:3432-3449. [PMID: 37739039 DOI: 10.1016/j.jtha.2023.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 08/11/2023] [Accepted: 08/29/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND With population pharmacokinetic (PK) modeling more readily available and PK-guided prophylaxis endorsed by current hemophilia guidelines, we conducted a systematic review to summarize current evidence in the literature. OBJECTIVES To assess the efficacy of PK-guided compared with non-PK-guided prophylaxis. METHODS We did not restrict inclusion to specific study design labels and included all studies consisting of at least one distinct cohort arm receiving PK-guided prophylaxis. We searched the following databases from inception to date of search: MEDLINE, Embase, CENTRAL, ClinicalTrials.gov, and the EU Clinical Trial Register. Following title, abstract, and full-text screening conducted independently by 2 review authors, we summarized studies qualitatively and synthesized included randomized clinical trials (RCTs) quantitatively by fitting random-effects models. RESULTS Search of databases on February 3, 2023, yielded 25 studies fitting our inclusion criteria. Of those, only 2 RCTs and 17 nonrandomized studies included a standard prophylaxis comparator group. Furthermore, risk of bias in the latter was substantial, primarily due to before-after study designs and retrospective comparator groups. Thus, nonrandomized studies were only presented qualitatively. A random-effects meta-analysis of the 2 identified RCT remained inconclusive with regards to bleeding outcomes (ratio of means, 1.15; 95% CI, 0.85-1.56) and factor consumption (ratio of means, 0.82; 95% CI, 0.58-1.18). CONCLUSION Evidence in the literature suggesting a clinical benefit of PK-guided over standard fixed-dose prophylaxis was weak and mainly found in nonrandomized studies limited by lack of concurrent controls, heterogeneity in outcome reporting, small sample sizes, and high risk of bias.
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Affiliation(s)
- Daniel Kraemmer
- Clinical Division of Hematology and Hemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Oliver Königsbrügge
- Clinical Division of Hematology and Hemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Florian Moik
- Clinical Division of Hematology and Hemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria; Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Brigitte Wildner
- University Library, Medical University of Vienna, Vienna, Austria
| | - Cihan Ay
- Clinical Division of Hematology and Hemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Ingrid Pabinger
- Clinical Division of Hematology and Hemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria.
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Benítez-Hidalgo O, Bosch Schips M, Juárez Giménez JC, Gironella M. Benefits of rIX-FP prophylaxis in patients with Haemophilia B: real-world evidence from a Spanish reference centre. Hematology 2023; 28:2242656. [PMID: 37680021 DOI: 10.1080/16078454.2023.2242656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/26/2023] [Indexed: 09/09/2023] Open
Abstract
Standard FIX prophylaxis for PWHB require frequent injections, which has led to the development of extended half-life products like rIX-FP (albutrepenonacog alfa) that has shown good efficacy in clinical studies. This ambispective study aims to report a real-world experience with rIX-FP in a Spanish centre with PWHB who switched from SHL-FIX or began prophylaxis with rIX-FP. Five PWHB were included in this study, Four PTP switched to rIX-FP with prophylaxis every 7 days whilst one PUP started with an every-14-days regimen. 3 PTPs extended their dosing intervals to every 14 days or every 21 days. In all PTPs, median annualized spontaneous and joint bleeding rates were maintained at 0.00 and median (range) of ABR was 0.92 (0.00-2.77) after switch to rIX-FP. Mean trough level with previous product was 3.68% (SD = 2.06), while it was 7.08% (SD = 3) with all rIX-FP dosing intervals. After switching to rIX-FP, all PTP reduced their annual infusion rate between 50 and 84% and their annual FIX consumption by 61% (59-67%). This is the first reported real-world experience with albutrepenonacog alfa in a small cohort in Spain and demonstrates good bleeding control together with a reduction of the infusion rate, factor consumption and higher through factor level than previous treatment.
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Affiliation(s)
- Olga Benítez-Hidalgo
- Servei d'Hematologia, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Marc Bosch Schips
- Servei d'Hematologia, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | - Mercedes Gironella
- Servei d'Hematologia, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Mawarikado Y, Sakata A, Inagaki Y, Shirai D, Tatsumi K, Nogami K, Tanaka Y, Kido A, Shima M. Single-facility study of the effectiveness of rehabilitation therapy using wearable hybrid assistive limb for patients with bleeding disorders: study protocol for a randomised controlled trial. BMJ Open 2023; 13:e076153. [PMID: 37984952 PMCID: PMC10660193 DOI: 10.1136/bmjopen-2023-076153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 10/18/2023] [Indexed: 11/22/2023] Open
Abstract
INTRODUCTION Haemophilic arthropathy, a serious complication of haemophilia, results from recurrent joint bleeding, causing progressive joint damage and severely impacting patient quality of life. Rehabilitation therapy (RT) effectively addresses declining physical function due to joint degradation, but pain during RT can hinder its success. Therefore, an effective pain-alleviating treatment method is required. The single-joint hybrid assistive limb (HAL-SJ), a powered exoskeleton, measures bioelectric potential during muscle contraction and provides motorised support, potentially alleviating pain. OBJECTIVE This study outlines our protocol for a randomised, prospective, single-blind (evaluator) trial aimed to investigate the effects of HAL-SJ on pain reduction during RT, kinesiophobia and other physical functions in patients with haemophilia. METHODS AND ANALYSIS This two-group comparison intervention study will include 24 male patients aged 12-85 years diagnosed with a bleeding disorder necessitating RT for pain and physical function improvement. The primary outcome measures pain changes during the first and second RT session in patients receiving HAL-SJ-assisted RT compared with traditional RT without HAL-SJ. The secondary outcomes include kinesiophobia (Japanese version of the Tampa Scale for Kinesiophobia), standing position gait (zebris FDM-T treadmill), range of motion (manual goniometer) and body surface temperature (infrared thermography camera) during the study period of up to 3 months or until the end of 10 RTs. RT intensity remains below that required to move the affected joint against gravity, given HAL-SJ's muscular support. The follow-up period extends to 1 month after the last RT. Intergroup study variables are compared by an unpaired t-test or Mann-Whitney test. Intragroup comparisons of secondary outcomes are analysed by a paired t-test or Wilcoxon signed-rank test. ETHICS AND DISSEMINATION This study was approved by the accreditation committee of Nara Medical University Hospital. The study results will disseminate through publication in a peer-reviewed journal. TRIAL REGISTRATION NUMBER jRCTs052220076.
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Affiliation(s)
- Yuya Mawarikado
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Asuka Sakata
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Yusuke Inagaki
- Department of Rehabilitation Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Daisuke Shirai
- Department of Medical Technology Center, Nara Medical University Hospital, Kashiwara, Nara, Japan
| | - Kohei Tatsumi
- Advanced Medical Science of Thrombosis and Hemostasis, Nara Medical University, Kashihara, Nara, Japan
| | - Keiji Nogami
- Pediatrics, Nara Medical University, Kashihara, Nara, Japan
| | - Yasuhito Tanaka
- Department of Orthopaedic Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - Akira Kido
- Department of Rehabilitation Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Midori Shima
- Medicinal Biology of Thrombosis and Haemostasis, Nara Medical University, Kashihara, Nara, Japan
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Puetz J. Emergent data influences the risk/benefit assessment of hemophilia gene therapy using recombinant adeno-associated virus. Front Med (Lausanne) 2023; 10:1256919. [PMID: 38020165 PMCID: PMC10667906 DOI: 10.3389/fmed.2023.1256919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
After decades of investigation, gene therapy has received regulatory approval to treat hemophilia. However, since gene therapy investigations were initially conceived, other avenues of treatment have revolutionized the care of hemophilia. Emergent data is showing that gene therapy may not be as beneficial as hoped and more toxic than planned. At a minimum, a reassessment of risk/benefit estimate of gene therapy for hemophilia is needed.
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Affiliation(s)
- John Puetz
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Saint Louis University School of Medicine, St. Louis, MO, United States
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Malec L, Matino D. Targeting higher factor VIII levels for prophylaxis in haemophilia A: a narrative review. Haemophilia 2023; 29:1419-1429. [PMID: 37758651 DOI: 10.1111/hae.14866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 09/07/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023]
Abstract
INTRODUCTION The standard of care in severe haemophilia A is prophylaxis, which has historically aimed for a factor VIII (FVIII) trough level of ≥1%. However, despite prophylactic treatment, people with haemophilia remain at risk of bleeds that have physical and quality of life implications, and that impact everyday life. AIM The aim of this review was to evaluate evidence supporting the relationship between targeting higher FVIII activity levels with prophylaxis and improved outcomes in people with haemophilia A. METHODS We conducted a narrative review that defined the unmet needs and treatment goals in people with haemophilia A, evaluated evidence to support targeting higher FVIII activity levels, and highlighted therapies that may support higher and sustained FVIII activity levels and improved outcomes for people with haemophilia A. RESULTS Despite recent advances in treatment, unmet needs remain, and people with haemophilia continue to experience joint and functional impairment, acute and chronic pain, and poor mental health. All these negatively impact their health-related quality of life. Evidence suggests that FVIII activity levels of up to 50% may be needed to achieve a near-zero joint bleed rate. However, achieving high FVIII activity levels with current standard and extended half-life (EHL) FVIII replacement therapies is associated with a high treatment burden. Innovative treatment options may provide high sustained FVIII activity levels and improved patient outcomes. CONCLUSION Evidence suggests that FVIII activity levels in people with haemophilia A should be sustained at higher levels to improve joint and patient outcomes and enable progression towards health equity.
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Affiliation(s)
- Lynn Malec
- Versiti Blood Research Institute, Milwaukee, Wisconsin, USA
- Division of Hematology & Oncology, Departments of Medicine and Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Davide Matino
- Division of Hematology & Thromboembolism, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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van Bergen EDP, van Leeuwen FHP, Foppen W, Timmer MA, Schutgens REG, Mastbergen SC, Lafeber FPJG, de Jong PA, Fischer K, van Vulpen LFD. Subclinical synovial proliferation in patients with severe haemophilia A: The value of ultrasound screening and biochemical markers. Haemophilia 2023; 29:1580-1588. [PMID: 37694775 DOI: 10.1111/hae.14861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/24/2023] [Accepted: 08/30/2023] [Indexed: 09/12/2023]
Abstract
AIM Subclinical bleeding and inflammation play a role in progression of haemophilic arthropathy. Synovial proliferation is predictive of joint bleeding and its early detection may guide treatment changes and prevent arthropathy progression. This study evaluated the prevalence of active and inactive subclinical synovial proliferation and investigated potential biochemical blood/urine markers to identify patients with active subclinical synovial proliferation. METHODS This cross-sectional study included patients with severe haemophilia A born 1970-2006 who were evaluated during routine clinic visits. Patients with (a history of) inhibitors or recent joint bleeding were excluded. Elbows, knees and ankles were examined for subclinical synovial proliferation by ultrasound and physical examination. Active synovial proliferation was distinguished from inactive synovial proliferation using predefined criteria. Blood/urine biochemical markers (serum osteopontin, sVCAM-1, Coll2-1, COMP, CS846, TIMP, and urinary CTX-II) were compared individually and as combined indexes between patients with and without active synovial proliferation. RESULTS This cohort consisted of 79 patients with a median age of 31 years (range 16.5-50.8 years) with 62/79 (78%) of the patients using continuous prophylaxis. The annualized joint bleeding rate over the last 5 years was .6 (.2-1.1). Active (17/79, 22%) and inactive subclinical synovial proliferation (17/79, 22%) were both prevalent in this cohort. Biochemical markers were not correlated with active subclinical synovial proliferation. CONCLUSION Subclinical synovial proliferation, both active and inactive, was prevalent in patients with severe haemophilia A with access to prophylaxis and would be overlooked without routinely performed ultrasounds. Biochemical markers were unable to identify patients with active subclinical synovial proliferation.
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Affiliation(s)
- Eline D P van Bergen
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Flora H P van Leeuwen
- Department of Radiology & Nuclear Imaging, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Wouter Foppen
- Department of Radiology & Nuclear Imaging, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Merel A Timmer
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Roger E G Schutgens
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Simon C Mastbergen
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Floris P J G Lafeber
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Pim A de Jong
- Department of Radiology & Nuclear Imaging, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Kathelijn Fischer
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Lize F D van Vulpen
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
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Fischer K, Lassila R, Peyvandi F, Gatt A, Hollingsworth R, Lambert T, Kaczmarek R, Bettle A, Samji N, Rivard GÉ, Carcao M, Iorio A, Makris M. Inhibitor development according to concentrate in severe hemophilia: reporting on 1392 Previously Untreated Patients from Europe and Canada. Res Pract Thromb Haemost 2023; 7:102265. [PMID: 38193044 PMCID: PMC10772871 DOI: 10.1016/j.rpth.2023.102265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/01/2023] [Accepted: 10/09/2023] [Indexed: 01/10/2024] Open
Abstract
Background Clotting factor concentrates have been the mainstay of severe hemophilia treatment over the last 50 years. Differences in risk of neutralizing antibody (inhibitor) formation according to concentrate used remain clinically relevant. Objectives To assess inhibitor development according to type of clotting factor concentrate in previously untreated patients (PUPs) with severe hemophilia A and B. Methods The European Haemophilia Safety Surveillance (EUHASS) and Canadian Bleeding Disorders Registry (CBDR) have been monitoring adverse events overall and according to concentrate for 11 and 8 years, respectively. Inhibitors were reported quarterly, and PUPs completed 50 exposure days without inhibitor development annually. Cumulative inhibitor incidences and 95% confidence intervals (CIs) were compared without adjustment for other risk factors. Results Fifty-six European and 23 Canadian centers reported inhibitor development in 312 of 1219 (26%; CI, 23%-28%) PUPs with severe hemophilia A and 14 of 173 (8%; CI, 5%-13%) PUPs with severe hemophilia B. Inhibitor development was lower on plasma-derived factor (F)VIII (pdFVIII, 20%; CI, 14%-26%) than on standard half-life recombinant FVIII (SHL-rFVIII, 27%; CI, 24%-30% and odds ratio, 0.67; CI, 0.45%-0.98%; P = .04). Extended half-life recombinant FVIII (EHL-rFVIII, 22%; CI, 12%-36%) showed an intermediate inhibitor rate, while inhibitor rates for Advate (26%; CI, 22%-31%) and Kogenate/Helixate (30%; CI, 24%-36%) overlapped. For other SHL-rFVIII concentrates, inhibitor rates varied from 3% to 43%. Inhibitor development was similar for pdFIX (11%; CI, 3%-25%), SHL-rFIX (8%; CI, 3%-15%), and EHL-rFIX (7%; CI, 1%-22%). Conclusion While confirming expected rates of inhibitors in PUPs, inhibitor development was lower in pdFVIII than in SHL-rFVIII. Preliminary data suggest variation in inhibitor development among different SHL-rFVIII and EHL-rFVIII concentrates.
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Affiliation(s)
- Kathelijn Fischer
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Riitta Lassila
- Department of Hematology, Unit of Coagulation Disorders, Helsinki University Central Hospital, Helsinki, Finland
| | - Flora Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | | | | | | | - Radek Kaczmarek
- Coagulation Products Safety Supply and Access Committee, World Federation of Hemophilia, Montreal, Quebec, Canada
- Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | | | - Nasrin Samji
- Department of Pediatrics, Division of Hematology-Oncology, McMaster University, Hamilton, Ontario, Canada
| | - Georges-Étienne Rivard
- Department of Pediatrics, Division of Hematology-Oncology, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Manuel Carcao
- Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Alfonso Iorio
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Toronto, Ontario, Canada
| | - Mike Makris
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - EUHASS and CHESS participants
- Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
- Department of Hematology, Unit of Coagulation Disorders, Helsinki University Central Hospital, Helsinki, Finland
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Mater Dei Hospital, Tal-QRoqq, Msida, Malta
- MDSAS, Manchester, United Kingdom
- Hopital Bicetre, Paris, France
- Coagulation Products Safety Supply and Access Committee, World Federation of Hemophilia, Montreal, Quebec, Canada
- Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
- IWK Health Centre, Halifax, Nova Scotia, Canada
- Department of Pediatrics, Division of Hematology-Oncology, McMaster University, Hamilton, Ontario, Canada
- Department of Pediatrics, Division of Hematology-Oncology, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
- Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Toronto, Ontario, Canada
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
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Oda A, Furukawa S, Kitabatake M, Ouji-Sageshima N, Sonobe S, Horiuchi K, Nakajima Y, Ogiwara K, Goitsuka R, Shima M, Ito T, Nogami K. The spleen is the major site for the development and expansion of inhibitor producing-cells in hemophilia A mice upon FVIII infusion developing high-titer inhibitor. Thromb Res 2023; 231:144-151. [PMID: 36948993 DOI: 10.1016/j.thromres.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/22/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023]
Abstract
BACKGROUND Hemophilia A (HA) is a hereditary bleeding disorder caused by defects in endogenous factor (F)VIII. Approximately 30 % of patients with severe HA treated with FVIII develop neutralizing antibodies (inhibitors) against FVIII, which render the therapy ineffective. The managements of HA patients with high-titter inhibitors are especially challenging. Therefore, it is important to understand the mechanism(s) of high-titer inhibitor development and dynamics of FVIII-specific plasma cells (FVIII-PCs). AIMS To identify the dynamics of FVIII-PCs and the lymphoid organs in which FVIII-PCs are localized during high-titer inhibitor formation. METHODS AND RESULTS When FVIII-KO mice were intravenously injected with recombinant (r)FVIII in combination with lipopolysaccharide (LPS), a marked enhancement of anti-FVIII antibody induction was observed with increasing FVIII-PCs, especially in the spleen. When splenectomized or congenitally asplenic FVIII-KO mice were treated with LPS + rFVIII, the serum inhibitor levels decreased by approximately 80 %. Furthermore, when splenocytes or bone marrow (BM) cells from inhibitor+ FVIII-KO mice treated with LPS + rFVIII were grafted into immune-deficient mice, anti-FVIII IgG was detected only in the serum of splenocyte-administered mice and FVIII-PCs were detected in the spleen but not in the BM. In addition, when splenocytes from inhibitor+ FVIII-KO mice were grafted into splenectomized immuno-deficient mice, inhibitor levels were significantly reduced in the serum. CONCLUSION The spleen is the major site responsible for the expansion and retention of FVIII-PCs in the presence of high-titer inhibitors.
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Affiliation(s)
- Akihisa Oda
- Department of Pediatrics, Nara Medical University, Kashihara, Japan
| | - Shoko Furukawa
- Department of Pediatrics, Nara Medical University, Kashihara, Japan
| | | | | | - Shota Sonobe
- Department of Immunology, Nara Medical University, Kashihara, Japan
| | - Kaoru Horiuchi
- Department of Pediatrics, Nara Medical University, Kashihara, Japan
| | - Yuto Nakajima
- Department of Pediatrics, Nara Medical University, Kashihara, Japan; The Course of Thrombosis and Hemostasis Molecular Pathology, Nara Medical University, Kashihara, Japan
| | - Kenichi Ogiwara
- Department of Pediatrics, Nara Medical University, Kashihara, Japan
| | - Ryo Goitsuka
- Division of Development and Aging, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Midori Shima
- Advanced Medical Science of Thrombosis and Hemostasis, Nara Medical University, Kashihara, Japan
| | - Toshihiro Ito
- Department of Immunology, Nara Medical University, Kashihara, Japan
| | - Keiji Nogami
- Department of Pediatrics, Nara Medical University, Kashihara, Japan.
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Bhatti MQ, Gonzalez-Fernandez E, Bhatia K, Divani AA, Di Napoli M, Hinduja A, Datta YH. Neurological Complications Associated with Hereditary Bleeding Disorders. Curr Neurol Neurosci Rep 2023; 23:751-767. [PMID: 37864642 DOI: 10.1007/s11910-023-01313-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2023] [Indexed: 10/23/2023]
Abstract
PURPOSE OF REVIEW Hereditary bleeding disorders may have a wide variety of clinical presentations ranging from mild mucosal and joint bleeding to severe central nervous system (CNS) bleeding, of which intracranial hemorrhage (ICH) is the most dreaded complication. In this review, we will discuss the pathophysiology of specific hereditary bleeding disorders, namely, hemophilia A, hemophilia B, and von Willebrand disease (vWD); their clinical manifestations with a particular emphasis on neurological complications; a brief overview of management strategies pertaining to neurological complications; and a review of literature guiding treatment strategies. RECENT FINDINGS ICH is the most significant cause of morbidity and mortality in patients with hemophilia. Adequate control of bleeding with the administration of specific factors or blood products, identification of risk factors for bleeding, and maintaining optimal coagulant activity are essential for appropriately managing CNS bleeding complications in these patients. The administration of specific recombinant factors is tailored to a patient's pharmacokinetics and steady-state levels. During acute bleeding episodes, initial factor activity should be maintained between 80 and 100%. Availability of monoclonal antibody Emicizumab has revolutionized prophylactic therapies in patients with hemophilia. Management of ICH in patients with vWD involves using plasma-derived factor concentrates, recombinant von Willebrand factor, and supportive antifibrinolytic agents individualized to the type and severity of vWD. Hemophilia and vWD are the most common hereditary bleeding disorders that can predispose patients to life-threatening CNS complications-intracranial bleeds, intraspinal bleeding, and peripheral nerve syndromes. Early care coordination with a hematologist can help develop an effective prophylactic regimen to avoid life-threatening bleeding complications in these patients. Further research is needed to evaluate using emicizumab as an on-demand treatment option for acute bleeding episodes in patients with hemophilia.
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Affiliation(s)
| | | | - Kunal Bhatia
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS, USA
| | - Afshin A Divani
- Department of Neurology, University of New Mexico, Albuquerque, NM, USA.
| | - Mario Di Napoli
- Neurological Service, SS Annunziata Hospital, Sulmona, L'Aquila, Italy
| | - Archana Hinduja
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Yvonne H Datta
- Department of Medicine, Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN, USA
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Chou SC, Hsu YC, Lin SW. Gene therapy for hemophilia, a clinical viewpoint. J Formos Med Assoc 2023; 122:1101-1110. [PMID: 37210312 DOI: 10.1016/j.jfma.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/07/2023] [Accepted: 05/08/2023] [Indexed: 05/22/2023] Open
Abstract
Gene therapy for hemophilia has been investigated for decades but no breakthroughs were made until Nathwani et al. achieved a significant and sustainable factor IX increase in hemophilia B patients in 2011. About eleven years later, in August 2022, the first hemophilia A gene therapy product was approved by the European Commission and hemophilia treatment entered a new era. This review does not focus on the newest advances but rather the practical aspects of gene therapy aiming to provide an overview for physicians who treat hemophiliacs who did not participate in the clinical trials. The current status of gene therapy, focusing particularly on products likely to be clinically available soon, are reviewed and summarized. Currently, possible limitations of gene therapy are pre-existing neutralizing antibodies toward the vector, liver health, age, and inhibitor status. Possible safety concerns include infusion reactions, liver damage, and adverse effects from immune suppressants or steroids. In summary, generally speaking, gene therapy is effective, at least for several years, but the exact effect may be unpredictable and intensive monitoring for several months is needed. It can also be considered safe with careful practice on selected patients. In its current form, gene therapy will not replace all hemophilia treatments. Advances in non-factor therapy will also improve hemophilia care greatly in the future. We envisage that gene therapy may be included in multiple novel therapies for hemophilia and benefit some hemophilia patients while novel non-factor therapies may benefit others, together fulfilling the unmet needs of all hemophilia patients.
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Affiliation(s)
- Sheng-Chieh Chou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Chen Hsu
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Liver Disease Prevention and Treatment Research Foundation, Taiwan
| | - Shu-Wha Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Yoshida Y, Kodani I. A Case of Congenital Mild Hemophilia Diagnosed After Wisdom Teeth Extraction. Yonago Acta Med 2023; 66:467-470. [PMID: 38028264 PMCID: PMC10674062 DOI: 10.33160/yam.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/03/2023] [Indexed: 12/01/2023]
Abstract
Hemophilia A is a recessive congenital deficiency of factor VIII that is characterized by normal bleeding time, normal prothrombin time, and prolonged activated partial thromboplastin time. In moderate and severe cases, abnormal bleeding is observed even after minor trauma, and the diagnosis is usually made by the age of 5-6 years, whereas in mild cases, abnormal bleeding is detected after major trauma or surgery. Herein, we present a case of hemophilia A that was discovered due to difficulties with hemostasis after tooth extraction.
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Affiliation(s)
- Yu Yoshida
- Division of Oral Surgery, National Hospital Organization Yonago Medical Center, Yonago 683-0006, Japan and
- Division of Oral and Maxillofacial Biopathological Surgery, Department of Sensory and Motor Organs, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Isamu Kodani
- Division of Oral and Maxillofacial Biopathological Surgery, Department of Sensory and Motor Organs, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
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Boccalandro EA, Pasca S, Begnozzi V, Gualtierotti R, Mannucci PM. Joint Dysfunction as a Cause of Spontaneous Subclinical Bleeding in Infants with Hemophilia. J Clin Med 2023; 12:6672. [PMID: 37892810 PMCID: PMC10607901 DOI: 10.3390/jcm12206672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Hemophilia is an inherited hemorrhagic disorder; its main clinical manifestations being bleeding in muscles and joints. Ankles, knees, and elbows are the most frequently affected joints, followed by shoulders and hips. The clinical signs of joint involvement are reduced mobility, swelling and walking difficulties. Bleeding episodes in patients with hemophilia are usually divided into traumatic and spontaneous, but we believe that the latter are not truly spontaneous but rather the result of joint stresses owing to motion actions that create dysfunctions starting from infancy. Pharmacological prophylaxis with factor replacement therapies or non-replacement drugs markedly reduces musculoskeletal hemorrhages. However, the onset of subclinical joint stress can be reduced only by associating this therapeutic approach with the accurate observation of the child motion patterns and restoring them if dysfunctional, thereby primarily preventing subclinical bleeding and ultimately the onset or progression of hemophilic arthropathy.
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Affiliation(s)
- Elena Anna Boccalandro
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, 20122 Milan, Italy; (E.A.B.); (V.B.); (P.M.M.)
| | - Samantha Pasca
- Biomedical Sciences Department (DSB), Padua University Hospital, 35131 Padua, Italy;
| | - Valentina Begnozzi
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, 20122 Milan, Italy; (E.A.B.); (V.B.); (P.M.M.)
| | - Roberta Gualtierotti
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, 20122 Milan, Italy; (E.A.B.); (V.B.); (P.M.M.)
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, 20122 Milan, Italy
| | - Pier Mannuccio Mannucci
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, 20122 Milan, Italy; (E.A.B.); (V.B.); (P.M.M.)
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Matsumoto T, Wada H, Shiraki K, Suzuki K, Yamashita Y, Tawara I, Shimpo H, Shimaoka M. The Evaluation of Clot Waveform Analyses for Assessing Hypercoagulability in Patients Treated with Factor VIII Concentrate. J Clin Med 2023; 12:6320. [PMID: 37834964 PMCID: PMC10573981 DOI: 10.3390/jcm12196320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Regular prophylactic therapy has become an increasingly common treatment for severe hemophilia. Therefore, hypercoagulability-a potential risk factor of thrombosis-is a cause for concern in hemophilic patients treated with a high dose of FVIII concentrate. In clot waveform analysis (CWA)-thrombin time (TT), a small amount of thrombin activates clotting factor VIII (FVIII) instead of fibrinogen, resulting in FVIII measurements using CWA-TT with a small amount of thrombin. METHODS The coagulation ability of patients treated with FVIII concentrate or emicizumab was evaluated using activated partial thromboplastin time (APTT), TT and a small amount of tissue factor-induced FIX activation assay (sTF/FIXa) using CWA. RESULTS The FVIII activity based on CWA-TT was significantly greater than that based on the CWA-APTT or chromogenic assay. FVIII or FVIII-like activities based on the three assays in plasma without emicizumab were closely correlated; those in plasma with emicizumab based on CWA-TT and chromogenic assays were also closely correlated. CWA-APTT and CWA-TT showed different patterns in patients treated with FVIII concentrates compared to those treated with emicizumab. In particular, CWA-TT in patients treated with FVIII concentrate showed markedly higher peaks in platelet-rich plasma than in platelet-poor plasma. CWA-APTT showed lower coagulability in hemophilic patients treated with FVIII concentrate than in healthy volunteers, whereas CWA-sTF/FIXa did not. In contrast, CWA-TT showed hypercoagulability in hemophilic patients treated with FVIII concentrate. CONCLUSIONS CWA-TT can be used to evaluate the thrombin bursts that cause hypercoagulability in patients treated with emicizumab. Although routine APTT evaluations demonstrated low coagulation ability in patients treated with FVIII concentrate, CWA-TT showed hypercoagulability in these patients, suggesting that the evaluation of coagulation ability may be useful when using multiple assays.
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Affiliation(s)
- Takeshi Matsumoto
- Department of Transfusion Medicine and Cell Therapy, Mie University Hospital, Tsu 514-8507, Japan;
| | - Hideo Wada
- Department of General and Laboratory Medicine, Mie Prefectural General Medical Center, Yokkaichi 510-0885, Japan;
| | - Katsuya Shiraki
- Department of General and Laboratory Medicine, Mie Prefectural General Medical Center, Yokkaichi 510-0885, Japan;
| | - Kei Suzuki
- The Emergency and Critical Care Center, Mie University Hospital, Tsu 514-8507, Japan;
| | - Yoshiki Yamashita
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan; (Y.Y.); (I.T.)
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan; (Y.Y.); (I.T.)
| | - Hideto Shimpo
- Mie Prefectural General Medical Center, Yokkaichi 510-0885, Japan;
| | - Motomu Shimaoka
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan;
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