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Dhinoja S, De Maria A, Qaryoute AA, Jagadeeswaran P. Characterization of zebrafish coagulation cofactors Fviii and Fv mutants and modeling hemophilia A and factor V deficiency. Blood Coagul Fibrinolysis 2024; 35:238-247. [PMID: 38874909 PMCID: PMC11230853 DOI: 10.1097/mbc.0000000000001308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
The aim of this study is to characterize zebrafish coagulation cofactors fviii and fv mutant fish and assess if they phenocopy classical hemophilia A and factor V deficiency in humans. The embryos from fviii and fv zebrafish heterozygote mutants generated by ENU mutagenesis were purchased from the ZIRC repository. They were reared to adulthood and genotyped. The heterozygote male and female were crossed to get homozygote, heterozygote, and wild-type fish. Functional kinetic coagulation assays and bleeding assays were performed on normal and mutant adult fish, and venous laser injury assays were performed on the larvae. The DNA from fviii and fv mutants were sequenced to confirm if they have a premature stop codon in exon 19, and in exon 2, respectively, and in both mutants, the amino acid glutamine is replaced with a stop codon. Homozygous and heterozygous 5 days post fertilization (dpf) larvae for fviii and fv deficient mutants exhibited prolonged time to occlusion after venous laser injury compared to wild-type controls. The homozygous and heterozygous fviii adult mutants showed modest bleeding and delayed fibrin formation in the kinetic partial thromboplastin time (kPTT) assay with their plasma. fv homozygous larvae had poor survival beyond 12 dpf. However, heterozygous fv mutants exhibited heavy bleeding and prolonged fibrin formation in the kPTT and kPT assay compared with wild-type siblings. Our characterization showed fviii and fv mutants from ZIRC phenocopied to a considerable extent classical hemophilia A and factor V deficiency in humans, respectively. These models should be useful in studying and developing novel drugs that reverse the phenotype and in generating suppressor mutations to identify novel factors that compensate for these deficiencies.
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Affiliation(s)
- Sanchi Dhinoja
- Department of Biological Sciences, University of North Texas, Denton, Texas, USA
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2
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Marrufo AM, Flores-Mireles AL. Macrophage fate: to kill or not to kill? Infect Immun 2024:e0047623. [PMID: 38829045 DOI: 10.1128/iai.00476-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024] Open
Abstract
Macrophages are dynamic innate immune cells that either reside in tissue, serving as sentinels, or recruited as monocytes from bone marrow into inflamed and infected tissue. In response to cues in the tissue microenvironment (TME), macrophages polarize on a continuum toward M1 or M2 with diverse roles in progression and resolution of disease. M1-like macrophages exhibit proinflammatory functions with antimicrobial and anti-tumorigenic activities, while M2-like macrophages have anti-inflammatory functions that generally resolve inflammatory responses and orchestrate a tissue healing process. Given these opposite phenotypes, proper spatiotemporal coordination of macrophage polarization in response to cues within the TME is critical to effectively resolve infectious disease and regulate wound healing. However, if this spatiotemporal coordination becomes disrupted due to persistent infection or dysregulated coagulation, macrophages' inappropriate response to these cues will result in the development of diseases with clinically unfavorable outcomes. Since plasticity and heterogeneity are hallmarks of macrophages, they are attractive targets for therapies to reprogram toward specific phenotypes that could resolve disease and favor clinical prognosis. In this review, we discuss how basic science studies have elucidated macrophage polarization mechanisms in TMEs during infections and inflammation, particularly coagulation. Therefore, understanding the dynamics of macrophage polarization within TMEs in diseases is important in further development of targeted therapies.
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Affiliation(s)
- Armando M Marrufo
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
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Sarangi P, Kumar N, Sambasivan R, Ramalingam S, Amit S, Chandra D, Jayandharan GR. AAV mediated genome engineering with a bypass coagulation factor alleviates the bleeding phenotype in a murine model of hemophilia B. Thromb Res 2024; 238:151-160. [PMID: 38718473 DOI: 10.1016/j.thromres.2024.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024]
Abstract
It is crucial to develop a long-term therapy that targets hemophilia A and B, including inhibitor-positive patients. We have developed an Adeno-associated virus (AAV) based strategy to integrate the bypass coagulation factor, activated FVII (murine, mFVIIa) gene into the Rosa26 locus using Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 mediated gene-editing. AAV vectors designed for expression of guide RNA (AAV8-gRNA), Cas9 (AAV2 neddylation mutant-Cas9), and mFVIIa (AAV8-mFVIIa) flanked by homology arms of the target locus were validated in vitro. Hemophilia B mice were administered with AAV carrying gRNA, Cas9 (1 × 1011 vgs/mouse), and mFVIIa with homology arms (2 × 1011 vgs/mouse) with appropriate controls. Functional rescue was documented with suitable coagulation assays at various time points. The data from the T7 endonuclease assay revealed a cleavage efficiency of 20-42 %. Further, DNA sequencing confirmed the targeted integration of mFVIIa into the safe-harbor Rosa26 locus. The prothrombin time (PT) assay revealed a significant reduction in PT in mice that received the gene-editing vectors (22 %), and a 13 % decline in mice that received only the AAV-FVIIa when compared to mock treated mice, 8 weeks after vector administration. Furthermore, FVIIa activity in mice that received triple gene-editing vectors was higher (122.5mIU/mL vs 28.8mIU/mL) than the mock group up to 15 weeks post vector administration. A hemostatic challenge by tail clip assay revealed that hemophilia B mice injected with only FVIIa or the gene-editing vectors had significant reduction in blood loss. In conclusion, AAV based gene-editing facilitates sustained expression of coagulation FVIIa and phenotypic rescue in hemophilia B mice.
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Affiliation(s)
- Pratiksha Sarangi
- Laurus Center for Gene Therapy, Department of Biological Sciences and Bioengineering and Mehta Family Centre for Engineering in Medicine and Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, UP, India
| | - Narendra Kumar
- Laurus Center for Gene Therapy, Department of Biological Sciences and Bioengineering and Mehta Family Centre for Engineering in Medicine and Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, UP, India
| | - Ramkumar Sambasivan
- Department of Biology, Indian Institute of Science Education and Research Tirupati, Andhra Pradesh, India
| | | | - Sonal Amit
- Autonomous State Medical College, Kumbhi, Akbarpur, Kanpur, UP, India
| | - Dinesh Chandra
- Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Giridhara R Jayandharan
- Laurus Center for Gene Therapy, Department of Biological Sciences and Bioengineering and Mehta Family Centre for Engineering in Medicine and Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, UP, India.
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Chozie NA, Ayu DR, Medise BE, Marsubrin PMT, Sari TT, Yuniar I, Wahyuni LK. Validity and reliability test of the Indonesian version of the PedHALshort questionnaire. Haemophilia 2024; 30:728-732. [PMID: 38578181 DOI: 10.1111/hae.15000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 04/06/2024]
Abstract
INTRODUCTION The PedHAL questionnaire is employed in measuring the activities of haemophilia children. The PedHALshort was developed in 2022 to determine the most relevant item for the assessment. Haemo-QoL questionnaire assesses the quality of life of haemophilia children. AIM Determine the validity and reliability of the PedHALshort Indonesia language version compared to the Haemo-QoL in the Indonesian population. METHODS A cross-sectional study was conducted in Jakarta, Indonesia. The subjects were children (4-16 years old) with moderate or severe haemophilia A or B with repeated joint bleeding. The daily activity was assessed using the PedHALshorts and Haemo-QoL. The validity and reliability were tested. The validity was determined with Pearson correlation test, construct validity was assessed using convergent and discriminant validity. The Spearman correlation was used to determine which domains of Haemo-QoL correlated with PedHALshort. The reliability was analyzed using test-retest reliability. Cronbach's α was used to determined internal consistency. RESULTS Fifty children were included in the study (78% haemophilia A, 70% severe group). All domains were valid (r > .284). The convergent validity test showed PedHALshort had a moderate negative correlation with physical health and sports school domain of Haemo-QoL (r = -.479, p < .001). The discriminant validity test showed the PedHALshort demonstrated a moderate negative correlation with physical health (r = -.585), view (r = -.590), sport school domain (r = -.430) in severe haemophilia subjects. The internal consistency of the PedHALshort questionnaire was high (Cronbach's α of .85 (.74-.92)). CONCLUSION The PedHALshort is valid and reliable, hence, it can be used to measure the functional physical activity of children with haemophilia.
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Affiliation(s)
- Novie Amelia Chozie
- Departement of Child Health, Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Dewi Rosariah Ayu
- Pediatric Subspecialist Consultant Program, Departement of Child Health, Cipto Mangunkusumo General hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
- Department of Child Health, Mohammad Hoesin General Hospital, Universitas Sriwijaya Medical School, Palembang, Indonesia
| | - Bernie Endyarni Medise
- Departement of Child Health, Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | | | - Teny Tjitra Sari
- Departement of Child Health, Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Irene Yuniar
- Departement of Child Health, Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Luh Karunia Wahyuni
- Department of Physical Medicine and Rehabilitation, Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
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Vijayakumar VE, Vijayalakshmi MA, Lacroix-Desmazes S, Venkataraman K. The use of Bacillus subtilis as a cost-effective expression system for production of Cholera Toxin B fused factor VIII epitope regions applicable for inducing oral immune tolerance. Folia Microbiol (Praha) 2024:10.1007/s12223-024-01166-z. [PMID: 38683262 DOI: 10.1007/s12223-024-01166-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/10/2024] [Indexed: 05/01/2024]
Abstract
Coagulation factor replacement therapy for the X-linked bleeding disorder Haemophilia, characterized by a deficiency of coagulation protein factor VIII (FVIII), is severely complicated by antibody (inhibitors) formation. The development of FVIII inhibitors drastically alters the quality of life of the patients and is associated with a tremendous increase in morbidity as well as treatment costs. The ultimate goal of inhibitor control is antibody elimination. Immune tolerance induction (ITI) is the only clinically established approach for developing antigen-specific tolerance to FVIII. This work aims to establish a novel cost-effective strategy to produce FVIII molecules in fusion with cholera toxin B (CTB) subunit at the N terminus using the Bacillus subtilis expression system for oral tolerance, as the current clinical immune tolerance protocols are expensive. Regions of B-Domain Deleted (BDD)-FVIII that have potential epitopes were identified by employing Bepipred linear epitope prediction; 2 or more epitopes in each domain were combined and cDNA encoding these regions were fused with CTB and cloned in the Bacillus subtilis expression vector pHT43 and expression analysis was carried out. The expressed CTB-fused FVIII epitope domains showed strong binding affinity towards the CTB-receptor GM1 ganglioside. To conclude, Bacillus subtilis expressing FVIII molecules might be a promising candidate for exploring for the induction of oral immune tolerance.
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Affiliation(s)
- Vijay Elakkya Vijayakumar
- Centre for Bio-Separation Technology (CBST), Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, 632014, India
| | | | - Sebastien Lacroix-Desmazes
- Centre de Recherche des Cordeliers, Institut National de la Santé et de la Recherche Médicale, CNRS, Sorbonne Université, Université de Paris, Paris F-75006, France
| | - Krishnan Venkataraman
- Centre for Bio-Separation Technology (CBST), Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, 632014, India.
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Jiménez-Yuste V, Oldenburg J, Tzeng E, Lim E, Sanabria F, Mahlangu J. Emicizumab is efficacious in people with hemophilia A with comorbidities aged ≥50 years: analysis of 4 phase III trials. Res Pract Thromb Haemost 2024; 8:102405. [PMID: 38783987 PMCID: PMC11112372 DOI: 10.1016/j.rpth.2024.102405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 05/25/2024] Open
Abstract
Background The treatment of older people with hemophilia A (HA) can be complicated by comorbidities. Objectives This post hoc analysis evaluates the efficacy and safety of emicizumab in people with HA aged ≥50 years with cardiovascular (CV) risk factors or HIV and/or hepatitis C virus (HCV) infection. Methods The HAVEN 1 (NCT02622321), HAVEN 3 (NCT02847637), HAVEN 4 (NCT03020160), and STASEY (NCT03191799) studies enrolled adults/adolescents with severe HA. Participants were categorized as having a comorbidity if they had any CV risk factors (including history of CV disease, hypertension, diabetes, hyperlipidemia, prior stroke, or obesity), HIV, and/or HCV infection. Efficacy and safety outcomes were compared by age (<50 vs ≥50 years). Results Of 504 participants at data cutoff, 408 were aged <50 years and 96 were aged ≥50 years. In people with HA aged <50 years, 26.7% had ≥1 CV risk factor and 29.4% had HIV and/or HCV infection. In people with HA aged ≥50 years, 72.9% had ≥1 CV risk factor and 74.0% had HIV and/or HCV infection. The mean (95% CI) annualized bleed rate for treated bleeds was 1.29 (0.07-6.06) for people with HA aged <50 years and 1.82 (0.19-6.93) for people with HA aged ≥50 years. No significant differences in annualized bleed rates were observed for those with comorbidities compared with those without. Safety outcomes were similar regardless of age. Conclusion This pooled analysis suggests that emicizumab efficacy and safety in people with HA aged ≥50 years with CV and HIV/HCV comorbidities were consistent with those in people with HA aged <50 years enrolled in the HAVEN 1, 3, and 4 and STASEY studies.
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Affiliation(s)
- Víctor Jiménez-Yuste
- Hematology Department, Hospital Universitario La Paz, IdiPAZ, Autónoma University, Madrid, Spain
| | - Johannes Oldenburg
- Institute of Experimental Haematology and Transfusion Medicine, University of Bonn, Bonn, Germany
| | - Eunice Tzeng
- Genentech, Inc., South San Francisco, California, USA
| | - Elise Lim
- Genentech, Inc., South San Francisco, California, USA
| | | | - Johnny Mahlangu
- Faculty of Health Sciences, University of the Witwatersrand and National Health Laboratory Service, Johannesburg, South Africa
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Huang Y, Wan C, Guan T, Xi X. Current status of treatment and disease burden of a cohort of hemophilia B in China. Front Public Health 2024; 11:1303787. [PMID: 38328542 PMCID: PMC10847226 DOI: 10.3389/fpubh.2023.1303787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/15/2023] [Indexed: 02/09/2024] Open
Abstract
Objective Hemophilia B is a rare X-chromosome linked hereditary bleeding disorder. Patients require lifelong treatment and it is costly, but there is a lack of research in China on the treatment and burden for this group. Our aim was to review the actual treatment pattern of hemophilia B patients in China, and describe the financial burden and other disease burden from the patient's perspective. Methods Using data collected by the Beijing Hemophilia Home Care Center, descriptive statistics were made on the sociodemographic characteristics and treatment of patients. The annual drug costs were calculated according to the actual factor dosage and price. Results During the study period, 29.9% of the patients only received on-demand treatment, while the rest of the patients received varying numbers of prophylaxis treatment. The total cost of clotting factors for 341 patients in one year was 16.0 million CNY ($2.5 million), with 46990.8 CNY ($7283.7) per patient. The drug cost of prophylaxis was significantly higher than that of on-demand treatment. The amount of prothrombin complex concentrates used by patients was the largest, more than 5 times of recombinant coagulation factor IX. Based on the average annual wage and average working time of Chinese employees in 2021, the average annual wage loss of HB patients reached 31544.2 CNY ($4889.4). The results of the questionnaire showed that 77.1% and 65.3% of patients had chronic pain and acute pain of different frequencies. Conclusion The level of prophylaxis for Chinese patients is low; safer and more effective recombinant drugs are not widely available. Patients also face a high burden of drug costs, as well as indirect costs that cannot be underestimated. Therefore, continued efforts are needed to improve the quality of life of patients by reducing their financial burden and promote standardized treatment.
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Affiliation(s)
- Yiwen Huang
- The Research Center of National Drug Policy & Ecosystem, China Pharmaceutical University, Nanjing, China
| | - Chuchuan Wan
- The Research Center of National Drug Policy & Ecosystem, China Pharmaceutical University, Nanjing, China
| | - Tao Guan
- Beijing Hemophilia Home Care Center, Beijing, China
| | - Xiaoyu Xi
- The Research Center of National Drug Policy & Ecosystem, China Pharmaceutical University, Nanjing, China
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Seoane-Martín ME, Cuesta-Barriuso R, Rodríguez-Martínez MC. Occupational therapy in the management of haemophilia patients: A scoping review. Haemophilia 2024; 30:51-58. [PMID: 38111119 DOI: 10.1111/hae.14913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/27/2023] [Accepted: 11/24/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Haemophilia is a haematological disease, although most haemorrhages occur in the locomotor system. Patients are physically disabled from an early age and have a poorer perception of quality of life. In the day-to-day lives of patients and their families, psychosocial well-being, the disease's physical, personal, and social impact, as well as work-related problems are the most complicated aspects of the disease that need to be addressed. OBJECTIVE To identify the role of occupational therapy in managing patients with haemophilia and to analyse the therapeutic potential of occupational therapy in treating these patients. METHODS A scoping review was conducted to identify the role of occupational therapy in managing patients with haemophilia and to analyse the therapeutic potential of occupational therapy in treating these patients. The review was registered in the international registry PROSPERO (Id: CRD42022319637). The databases consulted were SCOPUS, PubMed, PsycINFO, Web of Science and Science Direct, including all studies published until 14 August 2023. RESULTS No single study was found that specifically developed an occupational therapy intervention for patients with haemophilia. Measurement instruments have been identified, specific for patients with haemophilia and generic, that can be useful for the functional evaluation of these patients in the occupational therapy approach. Different studies showed the importance of multidisciplinary treatment, including occupational therapy. CONCLUSIONS The use of occupational therapy could be effective in improving autonomy and quality of life in haemophilia patients. Therefore, it is of paramount importance to conduct research studies within the field of occupational therapy.
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Affiliation(s)
| | - Rubén Cuesta-Barriuso
- Department of Surgery and Medical-Surgical Specialties, University of Oviedo, Oviedo, Spain
- InHeFis Research Group, Instituto Asturiano de Investigación Sanitaria (ISPA), Oviedo, Spain
| | - María Carmen Rodríguez-Martínez
- Department of Physiotherapy, Faculty of Health Sciences, University of Málaga, Málaga, Spain
- Biomedical Research Institute of Malaga-Nanomedicine Platform (IBIMA-BIONAND Platform), Málaga, Spain
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Pietu G, Giraud N, Chamouard V, Duport G, Lienhart A, Dargaud Y. Perspectives and perception of haemophilia gene therapy by French patients. Haemophilia 2024; 30:68-74. [PMID: 38058235 DOI: 10.1111/hae.14908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
INTRODUCTION AND AIM A national survey was initiated by representatives of French patients with haemophilia (AFH) and the French reference centre for haemophilia, in order to appreciate the awareness and knowledge of these patients regarding haemophilia gene therapy (HGT) and understand better their position about this innovative treatment that will soon become available. RESULTS Of 143 answers received, 137 could be analysed, representing about 3.5% of patients with severe or moderate haemophilia over 16year-old. They were 80.3% with haemophilia A and 19.7 % with haemophilia B, with a severe form of the disease for 80.3 % of them. Curiosity for HGT was formulated by 64.2% of the participants, 33.6 % being interested by this approach as soon as it will be available and 38.7 % preferring to wait until more patients have been treated. Only 3.6 % of the participants would never consider receiving HGT. The level of awareness and knowledge was estimated to be limited by 39.5 % of the patients. More than 60 % of them declared having never or almost never discussed HGT with the team of their haemophilia centre. Before deciding to get HGT, 54.4 % of the participants considered that it will be very important to compare it with their current treatment and 53.7 % would like to be better informed by their care providers. CONCLUSIONS These results highlight the need for training and education for patients, but also for professionals at haemophilia centres, about HGT and the shared decision-making process. Objective, unbiased and transparent information must be available for patients about this very promising therapy which nonetheless carries more uncertainty and unknowns compared to other haemophilia treatments.
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Affiliation(s)
| | | | - Valérie Chamouard
- Centre de Référence de l'Haémophilie, Unité d'Hémostase Clinique, Hôpital Louis Pradel, Hospices Civils de Lyon, Lyon, France
| | | | - Anne Lienhart
- Centre de Référence de l'Haémophilie, Unité d'Hémostase Clinique, Hôpital Louis Pradel, Hospices Civils de Lyon, Lyon, France
| | - Yesim Dargaud
- Centre de Référence de l'Haémophilie, Unité d'Hémostase Clinique, Hôpital Louis Pradel, Hospices Civils de Lyon, Lyon, France
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De Pablo-Moreno JA, Miguel-Batuecas A, Rodríguez-Merchán EC, Liras A. Treatment of congenital coagulopathies, from biologic to biotechnological drugs: The relevance of gene editing (CRISPR/Cas). Thromb Res 2023; 231:99-111. [PMID: 37839151 DOI: 10.1016/j.thromres.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/09/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023]
Abstract
Congenital coagulopathies have, throughout the history of medicine, been a focus of scientific study and of great interest as they constitute an alteration of one of the most important and conserved pathways of evolution. The first therapeutic strategies developed to address them were aimed at restoring the blood components lost during hemorrhage by administering whole blood or plasma. Later on, the use of cryoprecipitates was a significant breakthrough as it made it possible to decrease the volumes of blood infused. In the 1970' and 80', clotting factor concentrates became the treatment and, from the 1990's to the present day, recombinant factors -with increasingly longer half-lives- have taken over as the treatment of choice for certain coagulopathies in a seamless yet momentous transition from biological to biotechnological drugs. The beginning of this century, however, saw the emergence of new advanced (gene and cell) treatments, which are currently transforming the therapeutic landscape. The possibility to use cells and viruses as well as specific or bispecific antibodies as medicines is likely to spark a revolution in the world of pharmacology where therapies will be individualized and have long-term effects. Specifically, attention is nowadays focused on the development of gene editing strategies, chiefly those based on CRISPR/Cas technology. Rare coagulopathies such as hemophilia A and B, or even ultra-rare ones such as factor V deficiency, could be among those deriving the greatest benefit from these new developments.
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Affiliation(s)
- Juan A De Pablo-Moreno
- Department of Genetic, Physiology and Microbiology, Biology School, Complutense University of Madrid, Spain
| | - Andrea Miguel-Batuecas
- Department of Genetic, Physiology and Microbiology, Biology School, Complutense University of Madrid, Spain
| | - E Carlos Rodríguez-Merchán
- Osteoarticular Surgery Research, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital-Autonomous University of Madrid), Spain
| | - Antonio Liras
- Department of Genetic, Physiology and Microbiology, Biology School, Complutense University of Madrid, Spain.
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Liu Z, Feng J, Fang Y, Cheng Y, Li S. Barriers to prophylactic treatment among patients with haemophilia A in Shandong Province, China: a qualitative study. Orphanet J Rare Dis 2023; 18:226. [PMID: 37537616 PMCID: PMC10398971 DOI: 10.1186/s13023-023-02838-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 07/21/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Haemophilia A is a rare, hereditary haemorrhagic disease that manifests as induced spontaneous bleeding and leads to disability or premature death in severe cases. Prophylactic treatment is optimal for patients to prevent uncontrolled bleeding and reduce the severity of the injury. However, little is known about the use of prophylactic treatment among patients with haemophilia A in China, especially barriers that predispose them to low or non-adherence. In this study, we explore the barriers to the prophylactic treatment of patients with haemophilia A. METHOD We used personal interviews and focus groups to collect the data and analysed the data through thematic analysis. Purposive sampling was employed to recruit our participants. We continued recruiting participants until data saturation was reached from the thematic analysis. Ultimately, we obtained 37 participants, among whom 19 participated in personal interviews and 18 participated in focus groups (i.e., 3 focus groups with 6 participants each). RESULTS Three themes and nine subthemes were identified from the thematic analysis. Nine subthemes (i.e., perceived barriers) emerged from the analysis, which were further clustered into three themes: (1) poor primary health care, (2) inadequate financial support, and (3) a lack of patient-centred care. CONCLUSION The findings presented in this descriptive qualitative study offer a unique view of Chinese patients with haemophilia A and their barriers to prophylactic treatment. Our findings not only provide an in-depth understanding of barriers to prophylactic treatment encountered by Chinese patients with haemophilia A but also address the urgent need to strengthen primary care, provide adequate financial support, and establish patient-centred care for these suffering patients.
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Affiliation(s)
- Ziyu Liu
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
- NHC Key Lab of Health Economics and Policy Research, Shandong University, Jinan, 250012, China
- Centre for Health Preference Research, Shandong University, Jinan, 250012, China
| | - Junchao Feng
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
- NHC Key Lab of Health Economics and Policy Research, Shandong University, Jinan, 250012, China
- Centre for Health Preference Research, Shandong University, Jinan, 250012, China
| | - Yunhai Fang
- Shandong Blood Center, Shandong Haemophilia Treatment Center, Jinan, China
| | - Yan Cheng
- Shandong Blood Center, Shandong Haemophilia Treatment Center, Jinan, China
| | - Shunping Li
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
- NHC Key Lab of Health Economics and Policy Research, Shandong University, Jinan, 250012, China.
- Centre for Health Preference Research, Shandong University, Jinan, 250012, China.
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Choi YB, Shim YJ, Kim SG, Lee WK. Complication Analysis in Korean Patients With Hemophilia A From 2007 to 2019: A Nationwide Study by the Health Insurance Review and Assessment Service Database. J Korean Med Sci 2023; 38:e235. [PMID: 37527912 PMCID: PMC10396434 DOI: 10.3346/jkms.2023.38.e235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/30/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND There has been remarkable progress in hemophilia A (HA) treatment in Korea. Viral inactivation products were developed in 1989, use of recombinant factor VIII (FVIII) concentrates started in 2002, and prophylaxis expanded thereafter. This study was conducted to identify the changes in complications in HA before and after 1989 or 2002. METHODS The study was performed using the 2007-2019 Healthcare Big Data Hub of the Health Insurance Review and Assessment Service. RESULTS Among 2,557 patients, 1,084 had ≥ 1 complication; 829 had joint problems, 328 had viral infections, 146 had neurologic sequelae, and 87 underwent 113 surgeries or procedures due to complications. Patients born after 1989 had a significantly lower risk of viral infections than those born before 1989; 27.1% vs. 1.4% (P < 0.001, odds ratio [OR], 0.037). Patients born after 2002 had a significantly lower risk of joint problems than those born before 2002; 36.8% vs. 24.7% (P < 0.001, OR, 0.538). Patients born after 2002 had a higher incidence of neurologic sequelae than those born before 2002; 3.7% vs. 11.1% (P < 0.001, OR, 3.210). Medical expenses for complication-associated surgeries or procedures were ₩2,957,557,005. CONCLUSION Viral infections have significantly decreased in Korean patients with HA. The degree of reduction of joint problems was lower than we expected, because it took > 10 years to expand prophylaxis widely. Neurologic sequelae have not decreased; thus, additional efforts to decrease intracranial hemorrhage are needed. We suggest personalized dosing of FVIII and more meticulous care during childbirth to further reduce the complications.
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Affiliation(s)
- Young Bae Choi
- Department of Pediatrics, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
| | - Ye Jee Shim
- Department of Pediatrics, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea.
| | - Soon Gu Kim
- Education Support Center, Keimyung University School of Medicine, Daegu, Korea
| | - Won Kee Lee
- Medical Research Collaboration Center in Kyungpook National University Hospital, Department of Medical Informatics, School of Medicine, Kyungpook National University, Daegu, Korea
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13
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Haghpanah S, Naderi M, Kamalian S, Tavoosi H, Parand S, Javanmardi N, Karimi M. The impact of inhibitors on the quality of life in patients with hemophilia. SAGE Open Med 2023; 11:20503121231182284. [PMID: 37456083 PMCID: PMC10338721 DOI: 10.1177/20503121231182284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 05/30/2023] [Indexed: 07/18/2023] Open
Abstract
Objective To investigate the association of health-related quality of life in hemophilia patients with inhibitor and clinical and demographic characteristics. Methods In this multi-center cross-sectional study, 41 male patients with hemophilia A were investigated from May to October 2021. All patients were registered at the Hemophilia Clinic affiliated with Shiraz and Zahedan Universities of Medical Sciences in Iran. Health-related quality of life of the patients was evaluated by the Short Form-36 questionnaire. Results The patients' mean ± SD of age was 36.9 ± 13.2 (range: 18-76) years. Eleven patients (26.8%) were inhibitor positive. In univariate analysis, physical function, mental health dimension, and total Short Form-36 scores were significantly lower in the inhibitor-positive patients (p < 0.001, p = 0.045, and p = 0.035, respectively). Moreover, patients with severe disease showed significantly lower scores in physical function (p < 0.001), physical health dimension (p = 0.018), and total Short Form-36 (p = 0.031) than those with mild and moderate hemophilia. Also, blood-borne infections showed a significant association with lower score in physical health dimension (p = 0.038). In addition, annual bleeding rate showed significant negative correlations with physical health dimension (rs = -0.609, p < 0.001), mental health dimension (r = -0.317, p = 0.044), and total Short Form-36 (r = -0.455, p = 0.003) scores. In multiple linear regression analysis, disease severity revealed a significant negative relationship with scores in physical function (p = 0.001), role physical (RP) (p = 0.015), general health (GH) (p = 0.006), physical health dimension (p = 0.006), and marginally in total Short Form-36 score (p = 0.054). Also, age of the patients showed a significant negative association with physical function and GH scores (p < 0.001 and p = 0.015, respectively). Conclusion Disease severity and age were shown as independent factors affecting health-related quality of life, but inhibitor alone was not an independent influencing factor. Reduced health-related quality of life was also observed in hemophilia patients with higher annual bleeding rate and blood-borne infections. Therefore, it is necessary to pay more attention to these subgroups. Further studies with larger sample size are needed for more accurate results.
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Affiliation(s)
- Sezaneh Haghpanah
- Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Majid Naderi
- Department of Pediatrics, School of medicine, Genetics of Non-Communicable Disease Research Center, Ali Ibne Abitaleb Hospital Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Sepideh Kamalian
- Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hakimeh Tavoosi
- Shiraz Hemophilia Comprehensive Center, Dastgheib Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Parand
- Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Javanmardi
- Student Research committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehran Karimi
- Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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14
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Carulli C, Innocenti M, Tambasco R, Perrone A, Civinini R. Total Knee Arthroplasty in Haemophilia: Long-Term Results and Survival Rate of a Modern Knee Implant with an Oxidized Zirconium Femoral Component. J Clin Med 2023; 12:4356. [PMID: 37445391 DOI: 10.3390/jcm12134356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/17/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
(1) Background: Total Knee Arthroplasty (TKA) in patient with haemophilia (PWH) has usually been performed with the use of cobalt-chrome femoral and titanium tibial components, coupled with standard polyethylene (PE) inserts. The aim of this retrospective study was to evaluate the long-term outcomes and survival rates of TKA in a series of consecutive PWH affected by severe knee arthropathy at a single institution. (2) Methods: We followed 65 patients undergoing 91 TKA, implanted using the same implant, characterized by an oxidized zirconium femoral component, coupled with a titanium tibial component, and a highly crosslinked PE. At 1, 6, and 12 months; then every year for 5 years; and finally, every other 3 years, all patients were scored for pain (VAS), function (HJHS; KSS), ROM, and radiographic changes. Kaplan-Meier survivorship curves were used to calculate the implant survival rates. (3) Results: The mean follow-up was 12.3 years (4.2-20.6). All clinical and functional scores improved significantly from preoperatively to the latest follow-up (VAS: from 6.9 to 1.3; HJHS: from 13.4 to 1.9; KSS: from 19.4 to 79; ROM: from 42.4° to 83.6°). The overall survivorship of the implants was 97.5% at the latest follow-up. (4) Conclusions: The present series showed a high survival rate of specific implants potentially linked to the choice of an oxidized zirconium coupled with a highly crosslinked PE. We promote the use of modern implants in these patients in order to ensure long-lasting positive outcomes.
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Affiliation(s)
| | - Matteo Innocenti
- Orthopaedic Clinic, University of Florence, 50139 Florence, Italy
| | - Rinaldo Tambasco
- Orthopaedic Clinic, University of Florence, 50139 Florence, Italy
| | | | - Roberto Civinini
- Orthopaedic Clinic, University of Florence, 50139 Florence, Italy
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15
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Yin DL, Lin JM, Li YH, Chen P, Zeng MD. Short-term outcome of total knee replacement in a patient with hemophilia: A case report and review of literature. World J Clin Cases 2023; 11:2788-2795. [PMID: 37214564 PMCID: PMC10198112 DOI: 10.12998/wjcc.v11.i12.2788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/15/2023] [Accepted: 03/29/2023] [Indexed: 04/25/2023] Open
Abstract
BACKGROUND Hemophilia A is a rare inherited bleeding disorder caused by mutations in the factor VIII gene. This clotting factor plays an intrinsic role in the blood coagulation pathway. Patients with hemophilia may develop orthopedic manifestations such as hemarthrosis, but multiple malunion of fractures over the knee is rare and difficult to treat.
CASE SUMMARY We report a patient with hemophilia A who developed severe knee osteoarthritis along with fracture malunion and nonunion. Total knee replacement was performed using a custom-made modular hinged knee prosthesis (cemented) equipped with extended distal and proximal stems. At 3 years’ follow-up, the patient exhibited excellent clinical function and remained satisfied with the surgical outcome. Surgical intervention was accompanied by rigorous coagulation factor replacement.
CONCLUSION This case highlights various unique scenarios specific to individuals with hemophilia and fracture deformity.
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Affiliation(s)
- De-Long Yin
- Department of Orthopedic, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
| | - Jia-Min Lin
- Department of Orthopedic, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yuan-Hui Li
- Department of Orthopedic, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
| | - Peng Chen
- Department of Orthopedic, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Orthopedic, Yichang Chinese Medicine Hospital, Yichang 443003, Hubei Province, China
| | - Mian-Dong Zeng
- Department of Orthopedic, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
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16
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Franchini M, Zaffanello M, Focosi D. Current factor IX replacement options for hemophilia B and the challenges ahead. Expert Opin Pharmacother 2023; 24:729-736. [PMID: 36963373 DOI: 10.1080/14656566.2023.2196012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
INTRODUCTION Therapy for hemophilia B is aimed at replacing the congenital deficiency of coagulation factor IX (FIX). For replacement therapy, several FIX concentrates derived from donated human plasma or engineered by recombinant DNA technology are currently commercially available. The use of these products is well established and permit patients a relatively normal life. To further improve treatment efficacy, recombinant FIX products with a prolonged half-life have been developed, allowing relaxed prophylactic dosing and reducing treatment burden. AREAS COVERED In this review, we explore the current FIX replacement options for hemophilia B patients by analyzing the outcomes of their main clinical trials. We cover advances in the FIX molecules with extended half-life (EHL). Published literature on products for replacement of hemophilia B was retrieved using PubMed with no temporal limits. EXPERT OPINION The recent introduction of recombinant EHL FIX products has represented a major advance in the therapeutic management of hemophilia B patients, permitting both a reduction of treatment burden and improving patients' compliance to prophylaxis and, ultimately, quality of life.
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Affiliation(s)
- Massimo Franchini
- Department of Transfusion Medicine and Hematology, Carlo Poma Hospital, Mantua, Italy
| | - Marco Zaffanello
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
| | - Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, Italy
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17
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Jordan B. [A long-awaited - but prohibitively expensive - therapy]. Med Sci (Paris) 2023; 39:187-190. [PMID: 36799758 DOI: 10.1051/medsci/2023003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
After many years of development, a gene therapy for haemophilia B has demonstrated effectiveness and durability, at least over a time span of three years. It has just been approved (as Hemgenix®) by the FDA in the USA and by the EMA in the EU. However, the multimillion price tag of this treatment is a serious problem for healthcare systems and for patients, and raises a number of thorny issues about marketing practices of the pharmaceutical industry.
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Affiliation(s)
- Bertrand Jordan
- Biologiste, généticien et immunologiste, Président d'Aprogène (Association pour la promotion de la génomique), 13007 Marseille, France
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18
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Shamsasenjan K, Gharehdaghi S, Khalaf-Adeli E, Pourfathollah AA. New horizons for reduction of blood use: Patient blood management. Asian J Transfus Sci 2023; 17:108-116. [PMID: 37188016 PMCID: PMC10180789 DOI: 10.4103/ajts.ajts_14_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 07/11/2022] [Accepted: 08/07/2022] [Indexed: 05/17/2023] Open
Abstract
A countrywide study over the eras indicates overuse of blood transfusion can have considerable risks to patients accompanied by significant costs of blood transfusion for patients, hospitals, and health-care systems. Besides, more than 30% of the world's population is anemic. Typically, blood transfusion helps continue suitable oxygen transfer in anemia, i.e., more and more documented as a threatening factor with several adverse outcomes including long hospitalization, morbidity, and mortality. Transplantation of allogeneic blood is thus like a two-edged sword. There is no doubt that the blood transfusion is a life-saving treatment, but it should be underpinned by much of up-to-date health-care services. The new theory considered for patient blood management (PBM) also discusses the timely application of evidence-based surgical and clinical theories and focuses on patient outcomes. Furthermore, PBM involves a multidisciplinary methodology to reduce unnecessary transfusions, minimize costs, and cut risks.
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Affiliation(s)
- Karim Shamsasenjan
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Somayeh Gharehdaghi
- Department of Immunology, Division of Hematology, Faculty of Medicine, Tabriz University of Medical Sciences, Tehran, Iran
| | - Elham Khalaf-Adeli
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Ali Akbar Pourfathollah
- Department of Immunology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
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19
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Costa JR, Rego ÂR, Soares T, Sousa CAE, Coutinho MB. Changes in Coagulation Study and Risk of Developing Cholesteatoma: Is There a Link? J Audiol Otol 2023; 27:30-36. [PMID: 36710417 PMCID: PMC9884986 DOI: 10.7874/jao.2022.00143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 10/27/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The etiopathogenesis of acquired pediatric cholesteatoma has not yet been fully clarified. Recent studies and modern technologies have led researchers to look for explanations at a molecular level. This study aims to understand if the origins of cholesteatoma could be related to dysfunctions in coagulation factors, thereby emphasizing its role in angiogenesis. Subjects and. METHODS This was a retrospective case-control study carried out at a tertiary hospital center between January 2010 and December 2020. The study included 92 children. The variables of the summary coagulation study (partial thromboplastin time, prothrombin time, and international normalized ratio) were compared among children with and without development of chronic otitis media with cholesteatoma. RESULTS The cases and controls were comparable in terms of age, type, and number of times that ventilation tubes were placed. Partial thromboplastin times tended to be higher in children who developed cholesteatoma, with a statistically significant difference between the two groups in terms of normal and abnormal partial thromboplastin times (p=0.029). CONCLUSIONS The results of this case control study indicate that slight extension of partial thromboplastin times in the coagulation study may not meet the criteria for diagnosis of certain hematological pathologies or clinical significance, but at a molecular level may already have implications for activation of angiogenesis and other growth factors involved in the onset, growth, and expansion of acquired pediatric cholesteatoma.
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Affiliation(s)
- Joana Raquel Costa
- Department of Otorhinolaryngology-Head and Neck Surgery, Centro Hospitalar Universitário do Porto, Porto, Portugal,Address for correspondence Joana Raquel Costa, MD Department of Otorhinolaryngology- Head and Neck Surgery, Centro Hospitalar Universitário do Porto, Largo do Prof, Abel Salazar, 4099-001 Porto, Portugal Tel +351918109458 Fax +351223320318 E-mail
| | - Ângela Reis Rego
- Department of Otorhinolaryngology-Head and Neck Surgery, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Teresa Soares
- Department of Otorhinolaryngology-Head and Neck Surgery, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Cecília Almeida e Sousa
- Department of Otorhinolaryngology-Head and Neck Surgery, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - Miguel Bebiano Coutinho
- Department of Otorhinolaryngology-Head and Neck Surgery, Centro Hospitalar Universitário do Porto, Porto, Portugal
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20
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The effect of the Dietary Approaches to Stop Hypertension (DASH) diet on body composition, complete blood count, prothrombin time, inflammation and liver function in haemophilic adolescents. Br J Nutr 2022; 128:1771-1779. [PMID: 34863320 DOI: 10.1017/s0007114521004839] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
There is no dietary strategy that has yet been specifically advocated for haemophilia. Therefore, we sought to assess the effect of the Dietary Approaches to Stop Hypertension (DASH) diet in adolescents with haemophilia. In this parallel trial, forty male adolescents with haemophilia were dichotomised into the DASH group or control group for 10 weeks. The serum high sensitivity C-reactive protein, IL-6, complete blood count (CBC), serum glutamic oxaloacetic transaminase, serum glutamic pyruvic transaminase, partial thromboplastin time (PTT), waist circumference (WC), percentage of body fat, fat-free mass and liver steatosis were measured at the beginning and end of the study. Serum vitamin C was measured as a biomarker of compliance with the DASH diet. The DASH diet was designed to include high amounts of whole grains, fruits, vegetables and low-fat dairy products, as well as low amounts of saturated fats, cholesterol, refined grains, sweets and red meat. Serum vitamin C in the DASH group was significantly increased compared with the control (P = 0·001). There was a significant reduction in WC (P = 0·005), fat mass (P = 0·006), hepatic fibrosis (P = 0·02) and PTT (P = 0·008) in the DASH group, compared with the control. However, there were no significant differences regarding other selected outcomes between groups. Patients in the DASH group had significantly greater increase in the levels of erythrocyte, Hb and haematocrit, as compared with the control. Adherence to the DASH diet in children with haemophilia yielded significant beneficial effects on body composition, CBC, inflammation and liver function.
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21
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Immunothrombosis and the Role of Platelets in Venous Thromboembolic Diseases. Int J Mol Sci 2022; 23:ijms232113176. [PMID: 36361963 PMCID: PMC9656618 DOI: 10.3390/ijms232113176] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 12/05/2022] Open
Abstract
Venous thromboembolism (VTE) is the third leading cardiovascular cause of death and is conventionally treated with anticoagulants that directly antagonize coagulation. However, recent data have demonstrated that also platelets play a crucial role in VTE pathophysiology. In the current review, we outline how platelets are involved during all stages of experimental venous thrombosis. Platelets mediate initiation of the disease by attaching to the vessel wall upon which they mediate leukocyte recruitment. This process is referred to as immunothrombosis, and within this novel concept inflammatory cells such as leukocytes and platelets directly drive the progression of VTE. In addition to their involvement in immunothrombosis, activated platelets can directly drive venous thrombosis by supporting coagulation and secreting procoagulant factors. Furthermore, fibrinolysis and vessel resolution are (partly) mediated by platelets. Finally, we summarize how conventional antiplatelet therapy can prevent experimental venous thrombosis and impacts (recurrent) VTE in humans.
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22
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Franchini M, Mannucci PM. The More Recent History of Hemophilia Treatment. Semin Thromb Hemost 2022; 48:904-910. [DOI: 10.1055/s-0042-1756188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
AbstractThe availability first in the 1970s of plasma-derived and then in the 1990s of recombinant clotting factor concentrates represented a milestone in hemophilia care, enabling not only treatment of episodic bleeding events but also implementation of prophylactic regimens. The treatment of hemophilia has recently reached new landmarks. The traditional clotting factor replacement therapy for hemophilia has been substituted over the last 10 years by novel treatments such as bioengineered factor VIII and IX molecules with extended half-life and non-factor treatments including the bispecific antibody emicizumab. This narrative review is dedicated to these newer therapies, which are contributing significantly to improving the long-term management of prophylaxis in hemophilia patients. Another section is focused on the current state of gene therapy, which is a promising definitive cure for severe hemophilia A and B.
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Affiliation(s)
- Massimo Franchini
- Department of Transfusion Medicine and Hematology, Carlo Poma Hospital, Mantova, Italy
| | - Pier Mannuccio Mannucci
- Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico and University of Milan, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy
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23
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Grimm NB, Lee JT. Selective Xi reactivation and alternative methods to restore MECP2 function in Rett syndrome. Trends Genet 2022; 38:920-943. [PMID: 35248405 PMCID: PMC9915138 DOI: 10.1016/j.tig.2022.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/15/2022] [Accepted: 01/19/2022] [Indexed: 10/19/2022]
Abstract
The human X-chromosome harbors only 4% of our genome but carries over 20% of genes associated with intellectual disability. Given that they inherit only one X-chromosome, males are more frequently affected by X-linked neurodevelopmental genetic disorders than females. However, despite inheriting two X-chromosomes, females can also be affected because X-chromosome inactivation enables only one of two X-chromosomes to be expressed per cell. For Rett syndrome and similar X-linked disorders affecting females, disease-specific treatments have remained elusive. However, a cure may be found within their own cells because every sick cell carries a healthy copy of the affected gene on the inactive X (Xi). Therefore, selective Xi reactivation may be a viable approach that would address the root cause of various X-linked disorders. Here, we discuss Rett syndrome and compare current approaches in the pharmaceutical pipeline to restore MECP2 function. We then focus on Xi reactivation and review available methods, lessons learned, and future directions.
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Affiliation(s)
- Niklas-Benedikt Grimm
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA; Department of Genetics, The Blavatnik Institute, Harvard Medical School, Boston, MA, USA; Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Jeannie T Lee
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA; Department of Genetics, The Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
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24
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Islam MN, Biswas AR, Nazneen H, Chowdhury N, Alam M, Banik J, Hassan MK, Khan AAZ, Karim N, Hasan MJ, Khan MAS. Clinical profile and demographic characteristics of moderate and severe hemophilia patients in a tertiary care hospital of Bangladesh. Orphanet J Rare Dis 2022; 17:254. [PMID: 35804421 PMCID: PMC9264493 DOI: 10.1186/s13023-022-02413-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 06/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hemophilia is one of the commonest inherited bleeding disorders which may lead to chronic bleeding tendencies and life-long disabilities if not properly managed. Knowing the pattern of the disease aids in the prevention of disability and improvement of quality of life in hemophilia. However, there is a dearth of literature on the issue in Bangladesh. So, this study was designed to explore the frequency and site of spontaneous bleeding in moderate and severe hemophilia patients visiting in a tertiary level hospital. METHODS This descriptive cross-sectional study was conducted at the department of Hematology and Bone Marrow Transplantation (BMT) Center in Dhaka Medical College Hospital, Dhaka between February 2020 and August 2020. A total of 44 diagnosed cases of moderate to severe hemophilia were included in the study according to inclusion criteria. A detailed inquiry of history, thorough physical examination and relevant investigations were done and were recorded in case-record form. Informed written consent was taken from patients or their guardians where appropriate. All procedures were done according to Declaration of Helsinki. After entry and checking, data was analysed using SPSS version 26. RESULTS Out of 44 participants, 25 (56.8%) and 19 (43.2%) had moderate and severe hemophilia. Mean age of the study population was 21.31 (± 9.78) years with the majority aged between 11 and 20 years (45.5%). All sociodemographic features were similar across severity. Hemophilia A and B was found in 90.9% and 9.1%, respectively. However, all type B patients severe hemophilia making it statistically significantly different from type A (p = 0.029). The median age of first bleeding was 3.5 years and median age of first diagnosis was 5 years. Nevertheless, approximately 67.4% patients were diagnosed as a case of hemophilia at the time of their first diagnosis. The median spontaneous bleedings episodes among all patients was 32 (range: 0-97) which did not different significantly between severe and moderate patients. The most common affected (target) joint was knee joint (88.6%) followed by elbow joint (64%) among all patients. The knee joint was more commonly involved in severe than moderate disease. CONCLUSION This study observed the variations in pattern and frequency of spontaneous bleeding in patients with hemophilia. Severe disease was more frequent in hemophilia B than A and knee joint was the most frequent site of bleeding. However, further extensive studies are recommended.
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Affiliation(s)
| | - Akhil Ranjon Biswas
- Department of Haematology and BMT, Dhaka Medical College Hospital, Dhaka, Bangladesh
| | - Humayra Nazneen
- Department of Haematology, Dhaka Medical College Hospital, Dhaka, Bangladesh
| | | | - Mahbubul Alam
- Sheikh Russell National Gastroliver Institute and Hospital, Dhaka, Bangladesh
| | | | - Md Kamrul Hassan
- Department of Pathology, Shaheed Syed Nazrul Islam Medical College, Kishoreganj, Bangladesh
| | - Abdullah Az Zubayer Khan
- Department of Haematology, National Institute of Laboratory Medicine and Referral Center, Dhaka, Bangladesh
| | - Najmul Karim
- Medicine Department, Rangpur Medical College Hospital, Rangpur, Bangladesh
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Owaidah T, Almomen A, Tarawah A, Warsi A, Alkasim F, Alzahrani H, Saleh M, Kashari O, Jastaniah W. Consensus recommendations on appropriate coagulation tests during emicizumab administration in Saudi Arabia. AMERICAN JOURNAL OF BLOOD RESEARCH 2022; 12:82-87. [PMID: 35873100 PMCID: PMC9301022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Emicizumab is a bispecific monoclonal antibody with the ability to bridge FIXa and FX, mimic FVIII, and restore normal hemostasis in patients with hemophilia A. Moreover, substantial evidence has shown that emicizumab-treated patients do not require monitoring, except before surgery or invasive procedures. However, introducing this novel drug to the market poses some challenges to physicians and clinical laboratories due to its interaction with conventional coagulation tests. METHODS Given the challenges and laboratory interactions posed by this novel drug, there is an unmet clinical need to develop clear recommendations for emicizumab laboratory monitoring to highlight which laboratory tests should be used, which tests should be avoided, and when these tests should be performed. These expert recommendations are essential to prevent inappropriate testing or misleading interpretations and reduce the extra costs of unnecessary monitoring. RESULTS A consensus meeting was conducted in December 2019, including top experts on hemophilia from Saudi Arabia, to discuss this issue. CONCLUSION The experts agreed that, aPTT (activated Partial Thromboplastin Time)-based tests are not suitable for laboratory monitoring patients treated with emicizumab. Only FVIII chromogenic assays based on bovine FIX and FX proteins can be used to measure FVIII levels. They reviewed and recommended the type and time of testing for anti-factor VIII antibodies. Drug levels should be measured using the recommended test only when the anti-drug antibody (ADA) is clinically suspected and after excluding other causes (such as patient non-compliance).
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Affiliation(s)
- Tarek Owaidah
- Hematology and Transfusion Medicine, Department of Pathology and Laboratory Medicine (MBC 10), King Faisal Specialist Hospital and Research Center Alfaisal UniversityRiyadh, Saudi Arabia
| | - Abdulakareem Almomen
- Medicine-Hematology, King Saud University Medical City and Blood and Cancer CenterRiyadh, Saudi Arabia
| | - Ahmed Tarawah
- Paediatric Haematology, Madina Maternity and Children HospitalMedina, Saudi Arabia
| | - Ashraf Warsi
- Adult Haematology, College of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia; Princess Norah Oncology Centre, King Abdelaziz Medical City, Ministry of National Guard Health Affairs-WRJeddah, Saudi Arabia
| | - Fawaz Alkasim
- Paediatric Haematology, Maternity and Children HospitalRiyadh, Saudi Arabia
| | - Hazzaa Alzahrani
- Adult Haematology, King Faisal Specialist Hospital and Research CentreRiyadh, Saudi Arabia
| | - Mahassen Saleh
- Paediatric Haematology, King Faisal Specialist Hospital and Research CentreRiyadh, Saudi Arabia
| | - Ohoud Kashari
- Paediatric Haematology, East Jeddah General HospitalJeddah, Saudi Arabia
| | - Wasil Jastaniah
- Pediatrics and Pediatric Hematology/Oncology/BMT, College of Medicine, Umm Al-Qura UniversityMecca, Saudi Arabia
- Princess Norah Oncology Center, King Abdulaziz Medical City, Ministry of National Guard Health Affairs WRJeddah, Saudi Arabia
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He X, Wang X, Dong C, Zhao M, Wu J. The long-term clinical benefits and economic costs associated with increased use of prophylaxis among patients with haemophilia A in China: Population-based predictions from 2018 to 2033. Haemophilia 2022; 28:726-736. [PMID: 35714660 DOI: 10.1111/hae.14603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/22/2022] [Accepted: 05/24/2022] [Indexed: 11/28/2022]
Abstract
AIM To predict the long-term benefits and economic costs of the improvements in haemophilia care in China demonstrated by increasing use of prophylaxis, compared with the current status. METHODS City-level predictions from 2018 to 2033 were conducted for five representative cities in China. The long-term clinical and economic outcomes in the scenario where haemophilia care has significantly improved and the existing scenario of haemophilia care were calculated and compared. The model input data were obtained from local records, expert interviews, published literature, and other sources. Outcome measures including number of bleeds and joint bleeds, number of target joints, disability rate, direct and indirect costs were calculated at the patient and population levels. RESULTS The long-term predictions for 2033 demonstrated significantly improved bleed control and joint outcomes due to increased use of prophylaxis. The total number of averted bleed events per patient ranged from 3.9 in Shenyang to 16.1 in Zhengzhou in 2033, and the population-level averted bleed events ranged from 1963 in Xiamen to 14,868 in Zhengzhou. The treatment improvement also leads to significant economic costs driven by increase in clotting factor costs (more than 90%). At the population level, the additional total costs were highest in Zhengzhou (CNY 177.4 million) and lowest in Shenyang (CNY 45.4 million), due to their different population sizes and various existing treatment regimens. The outpatient and hospitalization costs decreased, while the factor costs increased. CONCLUSION The long-term prophylaxis is associated with avoided bleed events and disabilities. The improved treatment regimens are also associated with a significant economic burden, driven by factor costs.
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Affiliation(s)
- Xiaoning He
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Center for Social Science Survey and Data, Tianjin University, Tianjin, China
| | - Xu Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Center for Social Science Survey and Data, Tianjin University, Tianjin, China
| | - Chaohui Dong
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Mingyue Zhao
- The Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmacy, Xi'an Jiaotong University, China.,The Center for Drug Safety and Policy Research, Xi'an Jiaotong University, China
| | - Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Center for Social Science Survey and Data, Tianjin University, Tianjin, China
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Almeida-Silva M, Cardoso J, Alemão C, Santos S, Monteiro A, Manteigas V, Marques-Ramos A. Impact of Particles on Pulmonary Endothelial Cells. TOXICS 2022; 10:toxics10060312. [PMID: 35736920 PMCID: PMC9227819 DOI: 10.3390/toxics10060312] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 02/04/2023]
Abstract
According to the WHO, air quality affects around 40 million people, contributing to around 21,000 premature deaths per year. Severe respiratory diseases, such as asthma and chronic obstructive pulmonary disorder, can be promoted by air pollution, which has already been documented; this is one of the reasons why air quality is a very relevant factor for human health and well-being. Aerosols are an aggregation of solid or liquid particles dispersed in the air and can be found in the form of dust or fumes. Aerosols can be easily inhaled or absorbed by the skin, which can lead to adverse health effects according to their sizes that range from the nanometre to the millimetre scale. Based on the PRISMA methodology and using the Rayyan QCRI platform, it was possible to assess more than four hundred research articles. This systematic review study aimed to understand the impact of particles on pulmonary endothelial cells, namely particulate matter in different sizes, cigarette smoke, diesel exhaust particles and carbon black. The main conclusions were that particles induce multiple health effects on endothelial cells, namely endothelial dysfunction, which can lead to apoptosis and necrosis, and it may also cause necroptosis in lung structure.
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Affiliation(s)
- Marina Almeida-Silva
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Jéssica Cardoso
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Catarina Alemão
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Sara Santos
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Ana Monteiro
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, ao Km 139.7, 2695-066 Bobadela-Loures, Portugal
| | - Vítor Manteigas
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, ao Km 139.7, 2695-066 Bobadela-Loures, Portugal
| | - Ana Marques-Ramos
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
- Correspondence: ; Tel.: +351-966087971
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Mahajerin A, Faghmous I, Kuebler P, Howard M, Xu T, Flores C, Chang T, Nissen F. Channeling effects in the prescription of new therapies: the case of emicizumab for hemophilia A. J Comp Eff Res 2022; 11:717-728. [PMID: 35535702 DOI: 10.2217/cer-2021-0278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To determine if emicizumab was channeled to clinically complex people with hemophilia A upon approval. Methods: Claims data (16 November 2017, through 31 December 2019) from US-based insurance databases were analyzed to compare the clinical complexity of people with hemophilia A initiating emicizumab with matched individuals receiving factor VIII (FVIII) episodically or prophylactically. People with hemophilia A with evidence of previous bypassing agent use (indicating FVIII inhibitors) were excluded. Outcomes included bleeding events, arthropathy, pain, comorbidities and healthcare costs. Results: A larger proportion of emicizumab users had bleeding events, comorbidities and arthropathy and greater healthcare costs in the year prior to starting emicizumab compared with FVIII users. Conclusion: Claims-based data limitations prevent an absolute conclusion. Nevertheless, emicizumab users appear more clinically complex than FVIII users, suggesting post-approval channeling.
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Affiliation(s)
- Arash Mahajerin
- Divisions of Pediatric Hematology and Oncology, University of California, Irvine and CHOC Children's Specialists, Irvine, CA 92868, USA
| | - Imi Faghmous
- Department of Real-World Data Oncology-Hematology, F Hoffmann-La Roche Ltd., Basel, CH-4070, Switzerland.,Current affiliation: Faculty of Health, Medicine and Life Sciences, University of Maastricht, Maastricht, P Debyeplein15, DEB15, 6229 HA, The Netherlands
| | - Peter Kuebler
- Department of Personalized Healthcare Safety Interface, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Monet Howard
- Department of Clinical Safety, F Hoffmann-La Roche Ltd., Mississauga, ON, L5N 5M8, Canada
| | - Tao Xu
- Department of Personalized Healthcare Product Development, F Hoffmann-La Roche Ltd., Basel, CH-4070, Switzerland
| | - Carlos Flores
- Department of Evidence Strategy, Genesis Research, Hoboken, NJ 07030, USA
| | - Tiffany Chang
- Department of Personalized Healthcare Safety Interface, Genentech, Inc., South San Francisco, CA 94080, USA.,Current affiliation: Department of Hematology, Spark Therapeutics, PA 19104, USA
| | - Francis Nissen
- Department of Real-World Data Oncology-Hematology, F Hoffmann-La Roche Ltd., Basel, CH-4070, Switzerland
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Hodeib H, El Amrousy D, Youssef A, Elaskary E, Fouda MH. BAFF rs9514828 gene polymorphism and the risk of the development of inhibitors in children with severe haemophilia A. Haemophilia 2022; 28:472-479. [PMID: 35316553 DOI: 10.1111/hae.14555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Haemophilia A (HA) is an x-linked recessive disease due to deficiency of coagulation factor VIII (FVIII). The development of neutralizing antibodies (inhibitors) against infused FVIII is a major concern. B cell activating factor (BAFF) has been implicated in several autoimmune diseases. AIM We aimed to evaluate the possible association of BAFF rs9514828 gene polymorphism and the risk of the development of FVIII inhibitor in children with severe HA. METHODS This cohort study was carried out on 100 newly diagnosed boys with severe HA who were never treated before with FVIII concentrate. Assessment of serum levels of BAFF and BAFF rs9514828 genotyping at first diagnosis was performed and the patients were followed up for the completion of a total of 50 exposure days or the development of inhibitors whichever occurred first. The patients were divided as positive or negative according to the presence or absence of inhibitors. RESULTS The risk allele for BAFF rs9514828 (T) was significantly more frequent in the inhibitor positive patients than the inhibitor negative patients (P = .003). In addition, CT+TT genotypes were associated with increased risk of FVIII inhibitor development. Receiver operating characteristics (ROC) analysis showed that BAFF levels could predict the development of FVIII inhibitors at a cut-off value of ≥ .92 with a sensitivity of 85.9% and a specificity of 80.2%. CONCLUSION BAFF rs9514828 gene polymorphism could be independent risk factor and elevated BAFF levels might be useful prognostic marker for the development of FVIII inhibitor in newly diagnosed children with severe HA.
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Affiliation(s)
- Hossam Hodeib
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Doaa El Amrousy
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Amira Youssef
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Eman Elaskary
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohamed H Fouda
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Gebetsberger J, Schirmer M, Wurzer WJ, Streif W. Low Bone Mineral Density in Hemophiliacs. Front Med (Lausanne) 2022; 9:794456. [PMID: 35186990 PMCID: PMC8849249 DOI: 10.3389/fmed.2022.794456] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/10/2022] [Indexed: 12/14/2022] Open
Abstract
Objective To review the current knowledge on bone health in patients with hemophilia A and the underlying pathogenetic mechanisms. Data Sources Original research articles, meta-analyses, and scientific reviews. Data Synthesis Already in childhood, patients with hemophilia A are prone to low bone mineral density, leading to osteopenia and/or osteoporosis. Initially associated with the life style of hemophilia, today we are faced with accumulating evidence that coagulation factor VIII is involved directly or indirectly in bone physiology. Conclusion Understanding the role of factor VIII and the mechanisms of decreased bone mineral density in hemophilia A is critically important, especially as non-factor replacement therapies are available, and treatment decisions potentially impact bone health.
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Affiliation(s)
| | - Michael Schirmer
- Department of Internal Medicine, Clinic II, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Werner Streif
- Department of Pediatrics I, Medical University of Innsbruck, Innsbruck, Austria
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Effect of a fascial therapy treatment on quality of life in patients with hemophilic elbow arthropathy: a randomized controlled trial. Arch Phys Med Rehabil 2022; 103:867-874. [DOI: 10.1016/j.apmr.2021.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 11/21/2022]
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Blokzijl J, Timmer MA, van Vulpen L. Movement behavior in hemophilia-from medicalized training approaches toward an active lifestyle. Res Pract Thromb Haemost 2021; 5:e12639. [PMID: 34988353 PMCID: PMC8694742 DOI: 10.1002/rth2.12639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/17/2021] [Accepted: 11/20/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Johan Blokzijl
- Center for Benign Haematology, Thrombosis & HaemostasisVan CreveldkliniekUniversity Medical Center UtrechtUtrecht UniversityUtrechtThe Netherlands
- Physical Therapy ResearchDepartment of RehabilitationPhysical Therapy Science and SportUMC Utrecht Brain CentreUtrecht UniversityUtrechtThe Netherlands
| | - Merel A. Timmer
- Center for Benign Haematology, Thrombosis & HaemostasisVan CreveldkliniekUniversity Medical Center UtrechtUtrecht UniversityUtrechtThe Netherlands
- Physical Therapy ResearchDepartment of RehabilitationPhysical Therapy Science and SportUMC Utrecht Brain CentreUtrecht UniversityUtrechtThe Netherlands
| | - Lize F. D. van Vulpen
- Center for Benign Haematology, Thrombosis & HaemostasisVan CreveldkliniekUniversity Medical Center UtrechtUtrecht UniversityUtrechtThe Netherlands
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Faghmous I, Nissen F, Kuebler P, Flores C, Patel AM, Pipe SW. Estimating the risk of thrombotic events in people with congenital hemophilia A using US claims data. J Comp Eff Res 2021; 10:1323-1336. [PMID: 34676773 DOI: 10.2217/cer-2021-0120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Compare thrombotic risk in people with congenital hemophilia A (PwcHA) to the general non-hemophilia A (HA) population. Patients & methods: US claims databases were analyzed to identify PwcHA. Incidence rates of myocardial infarction, pulmonary embolism, ischemic stroke, deep vein thrombosis and device-related thrombosis were compared with a matched cohort without HA. Results: Over 3490 PwcHA were identified and 16,380 individuals matched. PwcHA had a similar incidence of myocardial infarction and pulmonary embolism compared with the non-HA population, but a slightly higher incidence of ischemic stroke and deep vein thrombosis. The incidence of device-related thrombosis was significantly higher in PwcHA. Conclusion: This analysis suggests that PwcHA are not protected against thrombosis, and provides context to evaluate thrombotic risk of HA treatments.
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Affiliation(s)
- Imi Faghmous
- Real-World Data Oncology-Hematology, F. Hoffmann-La Roche Ltd, Grenzacherstrasse 124, Basel, 4070, Switzerland
- Current affiliation: Health, Medicine & Life Sciences, University of Maastricht, Minderbroedersberg 4-6, 6211, LK Maastricht, The Netherlands
| | - Francis Nissen
- Real-World Data Oncology-Hematology, F. Hoffmann-La Roche Ltd, Grenzacherstrasse 124, Basel, 4070, Switzerland
| | - Peter Kuebler
- PHC Safety Interface, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Carlos Flores
- Evidence Strategy, Genesis Research Hoboken, 111 River St Ste 1120, Hoboken, NJ 07030, USA
| | - Anisha M Patel
- US Medical Affairs, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Steven W Pipe
- Pediatrics and Pathology, University of Michigan, D4202 MPB, 1500 E Medical Center Drive, Ann Arbor, MI 48109-5718, USA
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Pipe SW, Gonen-Yaacovi G, Segurado OG. Hemophilia A Gene Therapy: Current and Next-Generation Approaches. Expert Opin Biol Ther 2021; 22:1099-1115. [PMID: 34781798 DOI: 10.1080/14712598.2022.2002842] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION : Hemophilia comprises a group of X-linked hemorrhagic disorders that result from a deficiency of coagulation factors. The disorder affects mainly males and leads to chronic pain, joint deformity, reduced mobility, and increased mortality. Current therapies require frequent administration of replacement clotting factors, but the emergence of alloantibodies (inhibitors) diminishes their efficacy. New therapies are being developed to produce the deficient clotting factors and prevent the emergence of inhibitors. AREAS COVERED : This article provides an update on the characteristics and disease pathophysiology of hemophilia A, as well as current treatments, with a special focus on ongoing clinical trials related to gene replacement therapies. EXPERT OPINION : Gene replacement therapies provide safe, durable, and stable transgene expression while avoiding the challenges of clotting factor replacement therapies in patients with hemophilia. Improving the specificity of the viral construct and decreasing the therapeutic dose are critical toward minimizing cellular stress, induction of the unfolded protein response, and the resulting loss of protein production in liver cells. Next-generation gene therapies incorporating chimeric DNA sequences in the transgene can increase clotting factor synthesis and secretion, and advance the efficacy, safety, and durability of gene replacement therapy for hemophilia A as well as other blood clotting disorders.
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Gayen P, Jan S, Chowdhury N, Ghosh S, Hembram M, Bagchi A, Sinha Roy R. Engineered Bio-inspired Multifunctional Peptide- and Protein-based Therapeutic Biomolecules for Better Wound Care. Chem Asian J 2021; 16:4018-4036. [PMID: 34643055 DOI: 10.1002/asia.202101022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/06/2021] [Indexed: 11/11/2022]
Abstract
Developing non-immunogenic therapeutic biomolecules for facilitating blood clotting followed by wound healing via therapeutic angiogenesis, still remains a formidable challenge. Excessive blood loss of accident victims and battalions cause a huge number of deaths worldwide. Patients with inherited bleeding disorders face acute complications during injury and post-surgery. Biologically-inspired peptide-based hemostat can act as a potential therapeutic for handling coagulopathy. Additionally, non-healing wounds for patients having ischemic diseases can cause severe clinical complications. Advancement in stabilized growth-factor-based proangiogenic therapy may offer effective possibilities for the treatment of ischemic pathology. This review will discuss nature-inspired biocompatible stabilized peptide- and protein-based molecular medicines to serve unmet medical challenges for handling traumatic coagulopathy and impaired wound healing.
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Affiliation(s)
- Paramita Gayen
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Somnath Jan
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Nilkanta Chowdhury
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, Nadia, West Bengal, India
| | - Snehasish Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Monjuri Hembram
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Angshuman Bagchi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, Nadia, West Bengal, India
| | - Rituparna Sinha Roy
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India.,Centre for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India.,Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
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Srinivasan A, Herzog RW, Khan I, Sherman A, Bertolini T, Wynn T, Daniell H. Preclinical development of plant-based oral immune modulatory therapy for haemophilia B. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1952-1966. [PMID: 33949086 PMCID: PMC8486253 DOI: 10.1111/pbi.13608] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/02/2021] [Accepted: 04/14/2021] [Indexed: 05/03/2023]
Abstract
Anti-drug antibody (ADA) formation is a major complication in treatment of the X-linked bleeding disorder haemophilia B (deficiency in coagulation factor IX, FIX). Current clinical immune tolerance protocols are often not effective due to complications such as anaphylactic reactions against FIX. Plant-based oral tolerance induction may address this problem, as illustrated by the recent first regulatory approval of orally delivered plant cells to treat peanut allergy. Our previous studies showed that oral delivery of plant cells expressing FIX fused to the transmucosal carrier CTB (cholera toxin subunit B) in chloroplasts suppressed ADA in animals with haemophilia B. We report here creation of the first lettuce transplastomic lines expressing a coagulation factor, in the absence of antibiotic resistance gene. Stable integration of the CTB-FIX gene and homoplasmy (transformation of ˜10 000 copies in each cell) were maintained in both T1 and T2 generation marker-free plants. CTB-FIX expression in lyophilized leaves of T1 and T2 marker-free plants was 1.0-1.5 mg/g dry weight, confirming that the marker excision did not affect antigen levels. Oral administration of CTB-FIX to Sprague Dawley rats at 0.25, 1 or 2.5 mg/kg did not produce overt adverse effects or toxicity. The no-observed-adverse-effect level (NOAEL) is at least 2.5 mg/kg for a single oral administration in rats. Oral administration of CTB-FIX at 0.3 or 1.47 mg/kg either mixed in food or as an oral suspension to Beagle dogs did not produce any observable toxicity. These toxicology studies should facilitate filing of regulatory approval documents and evaluation in haemophilia B patients.
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Affiliation(s)
- Aparajitha Srinivasan
- Department of Basic and Translational SciencesSchool of Dental MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Roland W. Herzog
- Department of PediatricsHerman B Wells Center for Pediatric ResearchIndiana University School of MedicineIndianapolisINUSA
| | - Imran Khan
- Department of Basic and Translational SciencesSchool of Dental MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Alexandra Sherman
- Department of PediatricsHerman B Wells Center for Pediatric ResearchIndiana University School of MedicineIndianapolisINUSA
| | - Thais Bertolini
- Department of PediatricsHerman B Wells Center for Pediatric ResearchIndiana University School of MedicineIndianapolisINUSA
| | - Tung Wynn
- Department of PediatricsUniversity of FloridaGainesvilleFLUSA
| | - Henry Daniell
- Department of Basic and Translational SciencesSchool of Dental MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA
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Abstract
Background: Directed blood donation is defined as the donation of blood or its components for the purpose of transfusion into a specified individual. Directed blood donation holds historic significance, and although practices as of 2021 encourage voluntary, nonrenumerated blood donations, public interest in directed donation remains. Requests to discuss the risks and benefits of directed donations are a common inquiry for transfusion medicine, transplant, and hematology/oncology professionals. This narrative review discusses the history of directed donation and summarizes directed donation considerations in the context of modern transfusion practices. Methods: We conducted a systematic search of PubMed for published literature on the topic of directed blood donation and gathered information about its benefits and potential harms with respect to the variety of products used in transfusion medicine. Results: The drawbacks of directed donation include transfusion-transmitted infection risk, alloimmunization risk, increased transfusion-associated graft vs host disease risk, decreased expediency in treatment, and increased administrative burdens. However, a role remains for directed blood donation in specific patient populations, such as individuals with rare blood types or immunoglobulin A deficiencies, because of the difficulties in finding compatible blood for transfusion. Conclusion: Clinicians should consider the risks and benefits when discussing directed blood donations with patients and family members.
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Villarreal-Martínez L, Sepúlveda-Orozco MDC, García-Viera DA, Robles-Sáenz DA, Bautista-Gómez AJ, Ortiz-Castillo M, González-Martínez G, Mares-Gil JE. Spinal epidural hematoma in a child with hemophilia A with high titer inhibitors and follow-up with prophylactic emicizumab: case report and literature review. Blood Coagul Fibrinolysis 2021; 32:418-422. [PMID: 33859115 DOI: 10.1097/mbc.0000000000001038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Hemorrhage in the central nervous system is the most severe and debilitating manifestation affecting patients with hemophilia A. The spinal epidural space is the most unusual and clinically challenging site of central nervous system hemorrhage in hemophilia A. These patients often show insidious neurological signs and symptoms that delay diagnosis and treatment. We share our experience treating a 4-year-old male patient with severe hemophilia A and high titer inhibitors with a spontaneous spinal epidural hematoma. The patient presented initially with intense headache and neck pain. After blood tests and imaging studies, bypassing agent therapy with recombinant-activated factor VII was used until discharge; this was later replaced with emicizumab. After 18 months, the patient is without neurological sequelae and has not experienced subsequent bleeding episodes. We review the available literature and discuss the relevance of emicizumab compared with standard therapies in the context of spontaneous spinal epidural hematoma.
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Affiliation(s)
| | - María D C Sepúlveda-Orozco
- Pediatric Department, Hospital Universitario 'Dr José Eleuterio González', Universidad Autónoma de Nuevo León, Monterrey, México
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Hermans C, Makris M. Disruptive technology and hemophilia care: The multiple impacts of emicizumab. Res Pract Thromb Haemost 2021; 5:e12508. [PMID: 34027289 PMCID: PMC8116836 DOI: 10.1002/rth2.12508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/19/2021] [Accepted: 02/26/2021] [Indexed: 12/24/2022] Open
Abstract
Emicizumab, a bispecific antibody mimicking the action of factor VIII (FVIII), is currently the first and only approved and increasingly accessible disruptive treatment option for hemophilia A, a disease so far mainly treated with frequent intravenous infusions of FVIII concentrates or bypassing agents in case of inhibitor development. Other disruptive treatments are expected to follow, such as agents that rebalance coagulation and gene therapy with the ambition of curing hemophilia. While these treatment options represent major achievements or expectations, their adoption and implementation should consider their multiple direct and indirect, immediate or delayed, consequences on hemophilia care globally. It is these multiple changes, present and future, already visible or hypothetical, that this article intends to review and explore.
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Affiliation(s)
- Cedric Hermans
- Hemostasis and Thrombosis Unit Division of Hematology Cliniques Universitaires Saint-Luc Université catholique de Louvain (UCLouvain) Brussels Belgium
| | - Mike Makris
- Department of Infection, Immunity and Cardiovascular Disease University of Sheffield Sheffield UK.,Sheffield Haemophilia and Thrombosis Centre Royal Hallamshire Hospital Sheffield UK
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Broyles AD, Banerji A, Barmettler S, Biggs CM, Blumenthal K, Brennan PJ, Breslow RG, Brockow K, Buchheit KM, Cahill KN, Cernadas J, Chiriac AM, Crestani E, Demoly P, Dewachter P, Dilley M, Farmer JR, Foer D, Fried AJ, Garon SL, Giannetti MP, Hepner DL, Hong DI, Hsu JT, Kothari PH, Kyin T, Lax T, Lee MJ, Lee-Sarwar K, Liu A, Logsdon S, Louisias M, MacGinnitie A, Maciag M, Minnicozzi S, Norton AE, Otani IM, Park M, Patil S, Phillips EJ, Picard M, Platt CD, Rachid R, Rodriguez T, Romano A, Stone CA, Torres MJ, Verdú M, Wang AL, Wickner P, Wolfson AR, Wong JT, Yee C, Zhou J, Castells M. Practical Guidance for the Evaluation and Management of Drug Hypersensitivity: Specific Drugs. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 8:S16-S116. [PMID: 33039007 DOI: 10.1016/j.jaip.2020.08.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 08/10/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Ana Dioun Broyles
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Aleena Banerji
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Sara Barmettler
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Catherine M Biggs
- Department of Pediatrics, British Columbia Children's Hospital, University of British Columbia, Vancouver, Canada
| | - Kimberly Blumenthal
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Patrick J Brennan
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Rebecca G Breslow
- Division of Sports Medicine, Brigham and Women's Hospital, Boston, Mass
| | - Knut Brockow
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
| | - Kathleen M Buchheit
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Katherine N Cahill
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn
| | - Josefina Cernadas
- Allergology and Immunology Service, Centro Hospitalar Universitário de S.João Hospital, Porto, Portugal
| | - Anca Mirela Chiriac
- Division of Allergy, Department of Pulmonology, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France
| | - Elena Crestani
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Pascal Demoly
- Division of Allergy, Department of Pulmonology, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France
| | - Pascale Dewachter
- Department of Anesthesiology and Intensive Care Medicine, Groupe Hospitalier Paris-Seine-Saint-Denis, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Meredith Dilley
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Jocelyn R Farmer
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Dinah Foer
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Ari J Fried
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Sarah L Garon
- Associated Allergists and Asthma Specialists, Chicago, Ill
| | - Matthew P Giannetti
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - David L Hepner
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, Mass
| | - David I Hong
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Joyce T Hsu
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Parul H Kothari
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Timothy Kyin
- Division of Asthma, Allergy & Immunology, University of Virginia, Charlottesville, Va
| | - Timothy Lax
- Division of Allergy and Inflammation, Beth Israel Deaconess Medical Center, Boston, Mass
| | - Min Jung Lee
- Allergy and Immunology at Hoag Medical Group, Newport Beach, Calif
| | - Kathleen Lee-Sarwar
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, Mass
| | - Anne Liu
- Division of Allergy / Immunology, Stanford University School of Medicine, Palo Alto, Calif
| | - Stephanie Logsdon
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Margee Louisias
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Andrew MacGinnitie
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Michelle Maciag
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Samantha Minnicozzi
- Division of Allergy and Clinical Immunology, Respiratory Medicine, Department of Pediatrics, University of Virginia, Charlottesville, Va
| | - Allison E Norton
- Division of Allergy, Immunology and Pulmonology, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tenn
| | - Iris M Otani
- Division of Pulmonary, Critical Care, Allergy, and Sleep, Department of Medicine, University of California, San Francisco Medical Center, San Francisco, Calif
| | - Miguel Park
- Division of Allergic Diseases, Mayo Clinic, Rochester, Minn
| | - Sarita Patil
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Elizabeth J Phillips
- Department of Medicine & Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tenn
| | - Matthieu Picard
- Division of Allergy and Clinical Immunology, Department of Medicine, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Québec, Canada
| | - Craig D Platt
- Division of Immunology, Boston Children's Hospital, Boston, Mass
| | - Rima Rachid
- Division of Immunology, Boston Children's Hospital, Boston, Mass
| | - Tito Rodriguez
- Drug Allergy Department, Al-Rashed Allergy Center, Sulaibikhat, Al-Kuwait, Kuwait
| | - Antonino Romano
- IRCCS Oasi Maria S.S., Troina, Italy & Fondazione Mediterranea G.B. Morgagni, Catania, Italy
| | - Cosby A Stone
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, Tenn
| | - Maria Jose Torres
- Allergy Unit and Research Group, Hospital Regional Universitario de Málaga, UMA-IBIMA-BIONAND, ARADyAL, Málaga, Spain
| | - Miriam Verdú
- Allergy Unit, Hospital Universitario de Ceuta, Ceuta, Spain
| | - Alberta L Wang
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Paige Wickner
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass
| | - Anna R Wolfson
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Johnson T Wong
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Christina Yee
- Division of Immunology, Boston Children's Hospital, Boston, Mass
| | - Joseph Zhou
- Division of Allergy/Immunology, Boston Children's Hospital, Boston, Mass
| | - Mariana Castells
- Drug hypersensitivity and Desensitization Center, Brigham and Women's Hospital, Boston, Mass
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Patient Perspectives on Novel Treatments in Haemophilia: A Qualitative Study. PATIENT-PATIENT CENTERED OUTCOMES RESEARCH 2021; 13:201-210. [PMID: 31691206 PMCID: PMC7075838 DOI: 10.1007/s40271-019-00395-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background and Objective New treatments for haemophilia are under development or entering the market, including extended half-life products, designer drugs and gene therapy, thereby increasing treatment options for haemophilia. It is currently unknown how people with haemophilia decide whether to switch to a new treatment. Therefore, the objective of this study was to explore what factors may play a role when Dutch patients and parents of boys with moderate or severe haemophilia make decisions about whether to switch to a different treatment, and how disease and treatment characteristics may affect these decisions. This may aid clinical teams in tailored information provision and shared decision making. Methods We conducted interviews among adults with moderately severe or severe haemophilia and parents of young boys with severe haemophilia. We aimed to include participants from a variety of backgrounds in terms of involvement in the haemophilia community, age, treatment centre and treatments. Participants were recruited through the Netherlands Haemophilia Society and a haemophilia treatment centre. Semi-structured interviews were recorded and transcribed verbatim. Thematic content analysis was used to analyse the data. Results Twelve people with haemophilia and two mothers of boys with haemophilia were included. In general, participants reported to be satisfied with their current treatment. However, they considered ease of use of the medication (fewer injections, easier handling, alternative administration) an added value of new treatments. Participants were aware of the high cost of coagulation factor products and some expressed their concern about the Netherlands Haemophilia Society’s long-term willingness to pay for current and novel treatments, especially for increased usage due to high-risk activities. Participants also expressed their concerns about the short- and long-term safety of new treatments and believed the effects of gene therapy were not yet fully understood. Participants expected their treatment team to inform them when a particular new treatment would be suitable for them. Conclusions With the number of treatment options set to increase, it is important for healthcare providers to be aware of how patient experiences shape patients’ decisions about new therapies. Electronic supplementary material The online version of this article (10.1007/s40271-019-00395-6) contains supplementary material, which is available to authorized users.
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Franchini M, Schiavulli M, Liumbruno GM. Hemostatic therapy as a management strategy for acquired hemophilia: what does the future hold? Expert Rev Hematol 2021; 14:263-270. [PMID: 33655810 DOI: 10.1080/17474086.2021.1892483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: Acquired hemophilia A (AHA) is a rare autoimmune disease caused by autoantibodies that bind and inactivate factor VIII (FVIII), predisposing to a potentially life-threatening bleeding.Areas covered: The main epidemiological, clinical, laboratory and therapeutic features of AHA are critically discussed. In particular, we focus on the hemostatic management of AHA patients analyzing the currently available treatment options and showing the latest data on the innovative hemostatic agents still under investigation. Authors searched the Medline and PubMed electronic databases for publication on AHA in the last twenty years.Expert opinion: While a rapid recognition of suspected cases of AHA is essential to make a correct diagnosis and appropriately and timely treat the hemorrhagic manifestations, the multidisciplinary approach to this challenging, rare and life-threatening bleeding disorder is of equal importance to improve patients' outcome. Although promising, the safety and efficacy of the clinical use of emicizumab in AHA needs to be validated by trials including an adequate number of patients, before registering the drug also for this indication.
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Affiliation(s)
- Massimo Franchini
- Department of Hematology and Transfusion Medicine, Carlo Poma Hospital, Mantova, Italy
| | - Michele Schiavulli
- Regional Reference Center for Coagulation Disorders, Santobono-Pausilipon Hospital, Naples, Italy
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Saikawa Y, Tsunoda A, Sata N, Anzai T. An incidental latent adult hemophilia case found after a tonsillectomy. SAGE Open Med Case Rep 2021; 9:2050313X20988410. [PMID: 33717485 PMCID: PMC7924005 DOI: 10.1177/2050313x20988410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 12/28/2020] [Indexed: 11/16/2022] Open
Abstract
Severe bleeding after a tonsillectomy may cause airway obstruction and be life-threatening. We report post-tonsillectomy bleeding in a 32-year-old patient with hemophilia A, who had not been aware of his disease for more than 30 years. He underwent tonsillectomy for recurrent tonsillitis. He denied episodes of bleeding tendency. The preoperative workup was normal, including platelet count, prothrombin time, and activated partial thromboplastin time. The surgery itself was uneventful, but severe bleeding from the inferior pole of the tonsillar bed developed 7 days after surgery. Emergency hemostasis was performed under general anesthesia in the operating room. The patient then remembered several episodes of bleeding tendency. Coagulation tests revealed a mild lack of coagulation factor VIII to 35%, and a diagnosis of hemophilia A was made. Hemophilia might only be found after surgery and can cause life-threatening complications. However, latent hemophilia detected after a tonsillectomy in a 32-year-old adult is very rare. A careful history of bleeding tendency is important to achieve a diagnosis of coagulopathy, perform a safer surgery, and prevent postoperative complications.
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Affiliation(s)
- Yuichiro Saikawa
- Department of Otolaryngology, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Atsunobu Tsunoda
- Department of Otolaryngology, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Naoko Sata
- Department of Otolaryngology, Juntendo University Nerima Hospital, Tokyo, Japan
| | - Takashi Anzai
- Department of Otolaryngology, Juntendo University Nerima Hospital, Tokyo, Japan
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Jiménez-Yuste V, de la Corte-Rodríguez H, Álvarez-Román MT, Martín-Salces M, Querol F, Bonanad S, Mingot-Castellano ME, Fernández-Mosteirín N, Canaro M, Santamaría A, Núñez R, García-Frade LJ, Martinoli C, Kim HK. Ultrasound evaluation of joint damage and disease activity in adult patients with severe haemophilia A using the HEAD-US system. Haemophilia 2021; 27:479-487. [PMID: 33620134 DOI: 10.1111/hae.14280] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/25/2021] [Accepted: 02/05/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The Haemophilia Early Arthropathy Detection with Ultrasound (HEAD-US) system and scoring scale has proven to be an accurate and time-efficient imaging method for identifying joint damage in patients with haemophilia. AIM Observational, multicentre, cross-sectional study conducted in 8 centres in Spain that assessed the joint status of adult patients with severe haemophilia A (SHA) using HEAD-US. METHODS Joint status of the elbow, knee and ankle was evaluated in adults with SHA receiving on-demand (OD) treatment, or primary (PP), secondary (SP), tertiary (TP) or intermittent (IP) prophylaxis. RESULTS Of the 95 patients enrolled, 87 received prophylaxis (6.3% PP, 38.9% SP, 43.2% TP and 3.2% IP). Mean age was 35.2 years, and 59% of patients had not undergone image testing in the last year. The HEAD-US score was 0 in all joints in 6.3% of patients. The ankle was the most affected joint, regardless of treatment regimen. Patients receiving OD treatment, TP or IP had the overall worst scores, mainly in the ankles and elbows; a similar but milder profile was observed in patients on SP; and patients on PP had the best score in all joints. CONCLUSION Joint function may be effectively preserved in patients with SHA on PP, but OD treatment or later initiation of prophylaxis does not seem to prevent progression of arthropathy. Disease worsening was observed in patients OD, TP or IP, most often affecting ankles and elbows. Closer ultrasound imaging monitoring may improve management of these patients.
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Affiliation(s)
- Víctor Jiménez-Yuste
- Department of Haematology, Hospital Universitario La Paz, Autonoma University, Madrid, Spain
| | | | | | | | - Felipe Querol
- University of Valencia and Haemostasis and Thrombosis Unit, Department of Haematology, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Santiago Bonanad
- Haemostasis and Thrombosis Unit. Department of Haematology, Hospital Universitari i Politècnic La Fe, University of Valencia, Valencia, Spain
| | - María Eva Mingot-Castellano
- Department of Haematology, Hospital Regional Universitario de Málaga, Malaga, Spain.,Department of Haematology, Hospital Universitario Virgen del Rocío, Seville, Spain
| | | | - Mariana Canaro
- Department of Haemostasis and Thrombosis, Hospital Universitario Son Espases, Mallorca, Spain
| | - Amparo Santamaría
- Department of Thrombosis and Haemostasis, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Ramiro Núñez
- Department of Haematology, Hospital Universitario Virgen del Rocío, Seville, Spain
| | | | - Carlo Martinoli
- Dipartimento di Scienze della Salute Department of Health Sciences (DISSAL) and IRCCS Ospedale Policlinico San Martino, Genova, University of Genoa, Genoa, Italy
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Malik S, Sadasukhi N, Sadasukhi TC, Gill APS. Renal transplant in a patient of severe hemophilia. INDIAN JOURNAL OF UROLOGY : IJU : JOURNAL OF THE UROLOGICAL SOCIETY OF INDIA 2021; 37:87-89. [PMID: 33850363 PMCID: PMC8033234 DOI: 10.4103/iju.iju_194_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/18/2020] [Accepted: 06/04/2020] [Indexed: 11/20/2022]
Abstract
Hemophilia is a rare disorder that is difficult to diagnose and manage. The prevalence of end-stage renal disease is increasing in hemophilic patients because of improved life expectancy. Renal transplant surgery in such patients is often complicated by adverse hematological events such as bleeding and intravesical thrombosis, both with a risk of renal allograft rejection. We report a case of a 46-year-old hemophilia A patient on hemodialysis who underwent renal transplant and show that although challenging, renal transplant in hemophilic patients is possible.
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Affiliation(s)
- Sandeep Malik
- Department of Urology and Renal Transplant, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India
| | - Nripesh Sadasukhi
- Department of Urology and Renal Transplant, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India
| | - T C Sadasukhi
- Department of Urology and Renal Transplant, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India
| | - Amrit Pal Singh Gill
- Department of Urology and Renal Transplant, Mahatma Gandhi Medical College, Jaipur, Rajasthan, India
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Fujii T, Kidoguchi Y, Takahashi N, Yu E, Ainiwaer D, Byrne A. Budget impact analysis of Jivi (damoctocog alfa pegol, Bay 94-9027) in severe hemophilia A in Japan. J Med Econ 2021; 24:218-225. [PMID: 33459088 DOI: 10.1080/13696998.2021.1875788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Hemophilia A (HA) is a genetic bleeding disorder characterized by a deficiency of clotting factor VIII (FVIII) requiring lifelong prophylactic treatment typically with conventional standard half-life recombinant FVIII (rFVIII). Lifelong prophylaxis impacts budget, patient adherence, and long-term outcomes. The consequent economic and treatment burden may be reduced by using novel extended half-life rFVIII. The objective of this analysis was to estimate the budget impact of introducing Jivi (damoctocog alfa pegol, BAY 94-9027), hereafter referred to as BAY 94-9027, as an on-demand and prophylactic treatment for severe HA from a Japanese payer's perspective. METHODS A global budget impact model was adapted to the Japanese setting using data obtained via a targeted literature review of Japanese sources. The model considered a five-year time horizon for a market without and with BAY 94-9027. Using annual per-patient costs, the total cost of on-demand and prophylactic treatment of adolescent and adult patients with severe HA (without inhibitors) were analyzed. The model used summary of product characteristics (SmPC) and clinical trial dosing, and unit costs from the National Health Insurance (NHI) drug price database. Comparators considered in the model comprised of currently available products in Japan. Projected BAY 94-9027 uptake ranged from 4% to 9% over the five years (2020-2024). RESULTS Introduction of BAY 94-9027 for the treatment of severe HA is estimated to decrease the overall budget by 1.5%, with a cost saving of approximately $67 million USD (¥7.4 billion JPY) over five years. Estimated cost savings associated with BAY 94-9027 ranged from $1.4 million USD (¥156 million JPY) in 2020 to $23 million USD (¥2.6 billion JPY) in 2024 for the Japanese healthcare system. LIMITATIONS There were limitations associated with the study. The Japanese guidelines consulted during the targeted literature review of national data sources in Japan were based on global data as reference sources. Also, studies reporting the bleeding rate, dosing guidelines, and economic burden in the Japanese population identified by the targeted literature review were limited hence global studies were used and may not have been representative of the Japanese population. CONCLUSIONS BAY 94-9027 can reduce total severe HA treatment costs, driven by lower annual rFVIII utilization, and a narrow weekly dosing range compared to competitor products in the Japanese market.
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Affiliation(s)
- Teruhisa Fujii
- Division of Blood Transfusion, Hiroshima University Hospital, Hiroshima, Japan
| | | | | | - Eric Yu
- IQVIA Solutions Japan K.K, Tokyo, Japan
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Pipe SW, Kruse‐Jarres R, Mahlangu JN, Pierce GF, Peyvandi F, Kuebler P, De Ford C, Sanabria F, Ko RH, Chang T, Hay CRM. Establishment of a framework for assessing mortality in persons with congenital hemophilia A and its application to an adverse event reporting database. J Thromb Haemost 2021; 19 Suppl 1:21-31. [PMID: 33331042 PMCID: PMC7756842 DOI: 10.1111/jth.15186] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/15/2020] [Accepted: 10/28/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Despite recent therapeutic advances, life expectancy in persons with congenital hemophilia A (PwcHA) remains below that of the non-HA population. As new therapies are introduced, a uniform approach to the assessment of mortality is required for comprehensive evaluation of risk-benefit profiles, timely identification of emerging safety signals, and comparisons between treatments. OBJECTIVES Develop and test a framework for consistent reporting and analysis of mortality across past, current, and future therapies. PATIENTS/METHODS We identified known causes of mortality in PwcHA through literature review, analysis of the US Food and Drug Administration Adverse Event Reporting System (FAERS) database, and expert insights. Leading causes of death in general populations are those recognized by the Centers for Disease Control and Prevention and the World Health Organization. We developed an algorithm for assessing fatalities in PwcHA and used this to categorize FAERS data as a proof of concept. RESULTS PwcHA share mortality causes with the non-HA population including cardiovascular disease, malignancy, infections, pulmonary disease, dementias, and trauma/suicide. Causes associated with HA include hemorrhage, thrombosis, human immunodeficiency virus, hepatitis C virus, and liver dysfunction. We propose an algorithm employing these classes to categorize fatalities and use it to classify FAERS fatality data between 01/01/2000 and 03/31/2020; the most common causes were hemorrhage (22.2%) and thrombosis (10.4%). CONCLUSIONS A conceptual framework for examining mortality in PwcHA receiving any hemophilia therapy is proposed to analyze and interpret fatalities, enabling consistent and objective assessment. Application of the framework using FAERS data suggests a generally consistent pattern of reported mortality across HA treatments, supporting the utility of this unified approach.
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Affiliation(s)
- Steven W. Pipe
- Departments of Pediatrics and PathologyUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Rebecca Kruse‐Jarres
- University of WashingtonSeattleWAUSA
- Washington Center for Bleeding DisordersSeattleWAUSA
| | | | | | - Flora Peyvandi
- IRCCS Fondazione Ca' Granda Ospedale Maggiore PoliclinicoAngelo Bianchi Bonomi Hemophilia and Thrombosis CenterMilanItaly
- Department of Pathophysiology and TransplantationUniversity of MilanMilanItaly
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Beny K, du Sartz de Vigneulles B, Chamouard V, Guilloux R, Gay V, Negrier C, Dussart C. Patients' Perception of the Impact of Innovation on Hemophilia Care Management Organization: A Qualitative Study Protocol (INNOVHEMO Study). Patient Prefer Adherence 2021; 15:1807-1815. [PMID: 34434044 PMCID: PMC8380624 DOI: 10.2147/ppa.s322531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/21/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND New therapies provide a favorable evolution in the care management of persons with hemophilia. However, the impact of these new therapies on patient care organization remains to be determined. A qualitative study will be implemented to analyze patients' perception regarding the impact of innovation on the organization of their care management. Secondary objectives will include refining specific factors related to persons with hemophilia (barriers or facilitators, especially the place of treatment) to consider within an organizational impact analysis. PATIENTS AND METHODS Semi-structured individual interviews will be conducted via videoconferencing or by phone by two researchers using an interview guide. Participants will be recruited from the Rhône-Alpes region, in France. Physicians from two hemophilia treatment centers will identify eligible patients. Moreover, a call for volunteers will be launched by the Rhône-Alpes committee of the French hemophilia association. Interviews will be conducted with adult patients, adolescent patients or parents of a minor with hemophilia regularly treated prophylactically or on demand. Data analysis will be performed with NVivo® software. Each interview will be analyzed by two researchers using an inductive content analytic method. DISCUSSION The INNOVHEMO study is an original study analyzing the way patients perceive the impact of an innovation on their care management organization. The resulting patient-specific factors, identified as barriers or facilitators, will need to be integrated into a more comprehensive analysis of the impact of innovation on care management organization.
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Affiliation(s)
- Karen Beny
- EA 4129 Laboratory P2S (Health Systemic Process), University of Lyon, University Claude Bernard Lyon 1, Lyon, France
- Central Pharmacy, Hospices Civils de Lyon, Lyon, France
- Correspondence: Karen Beny Central Pharmacy, Hospices Civils de Lyon, 57 rue Francisque Darcieux, CS 60004, 69563 Saint Genis Laval Cedex, Lyon, FranceTel +33 4 78 86 66 92Fax +33 4 72 67 88 74 Email
| | | | - Valerie Chamouard
- Reference center on hemophilia and other constitutional hemorrhagic diseases, Groupement Hospitalier Est, Hospices Civils de Lyon, Lyon, France
- Pharmacy, Groupement Hospitalier Est, Hospices Civils de Lyon, Lyon, France
| | - Ronald Guilloux
- Laboratory S2HEP, University of Lyon, University Claude Bernard Lyon 1, Lyon, France
| | - Valérie Gay
- Hemophilia Care Center, Centre hospitalier Métropole Savoie, Chambéry, France
| | - Claude Negrier
- Reference center on hemophilia and other constitutional hemorrhagic diseases, Groupement Hospitalier Est, Hospices Civils de Lyon, Lyon, France
| | - Claude Dussart
- EA 4129 Laboratory P2S (Health Systemic Process), University of Lyon, University Claude Bernard Lyon 1, Lyon, France
- Central Pharmacy, Hospices Civils de Lyon, Lyon, France
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Hay CRM, Nissen F, Pipe SW. Mortality in congenital hemophilia A - a systematic literature review. J Thromb Haemost 2021; 19 Suppl 1:6-20. [PMID: 33331043 PMCID: PMC7839505 DOI: 10.1111/jth.15189] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/14/2020] [Accepted: 11/02/2020] [Indexed: 12/20/2022]
Abstract
Against a background of a rapidly evolving treatment landscape, a contemporary, evidence-based consolidated understanding of mortality in people with congenital hemophilia A (PwcHA) is lacking. This systematic literature review examines the available data on mortality and causes of death in PwcHA to enable a better understanding of fatalities in PwcHA and evaluate the impact of new treatment paradigms on mortality. A systematic literature review of observational studies was conducted by searching Medline, Embase, and clinical trials registries for articles published from January 2010 to March 2020, using the search terms: hemophilia A (HA), mortality, cause of death. Interventional studies, studies not reporting fatalities, and those reporting only on hemophilia B, acquired HA, or mixed other coagulopathies were excluded. Overall, 7818 unique records were identified and 17 were analyzed. Of these, six reported mortality rates and five reported mortality ratios. Mortality generally decreased over time, despite a spike associated with human immunodeficiency virus (HIV)/hepatitis C virus (HCV) infection in the 1980s and 1990s. Mortality was strongly correlated with age and hemophilia severity. People with hemophilia had a raised mortality risk compared with the general population, particularly in severe hemophilia, and when infected with HIV or HCV. Causes of death varied across populations, countries, and time in 15 identified studies; however, incomplete and heterogeneous reporting limits evidence. Hemorrhage, HIV, HCV, and hepatic disease were the leading causes of death. A unified approach to reporting mortality and cause of death is needed to understand mortality in PwcHA as treatments continue to advance.
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Affiliation(s)
| | | | - Steven W. Pipe
- Departments of Pediatrics and PathologyUniversity of MichiganAnn ArborMIUSA
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Ghosh S, Tripathi A, Gayen P, Sinha Roy R. Peptide-based topical agents and intravenous hemostat for rapid hemostasis. RSC Med Chem 2020; 11:1100-1111. [PMID: 33479616 PMCID: PMC7651999 DOI: 10.1039/d0md00204f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/14/2020] [Indexed: 01/25/2023] Open
Abstract
Traumatic coagulopathy due to severe external injury and internal hemorrhage is life-threatening to accident victims and soldiers on the battlefield, causing considerable number of deaths worldwide. Patients with inherited bleeding disorders (such as haemophilia, von Willebrand disease, inherited qualitative platelet defects, and afibrinogenemia) also contribute to the vast number of deaths due to abnormal bleeding, and these patients are difficult to handle during surgery. Platelets and different plasma proteins play an essential role in blood coagulation and in the maintenance of the body's hemostatic balance. The improper function or deficiency of these factors cause abnormal bleeding. To address such bleeding disorders, external clotting agents (such as extracellular protein-inspired natural and synthetic peptide-based sealants and peptide-functionalized polymer/liposome-based sealants) have been developed by different groups of researchers. The primary focus of this review is to provide molecular insights into the existing biologically inspired peptide-based sealants, highlighting the advantages and limitations of such reported designed sealants to handle blood clotting, and also provide insights into the design of improved next-generation surgical sealants.
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Affiliation(s)
- Snehasish Ghosh
- Department of Chemical Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India
| | - Archana Tripathi
- Department of Biological Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India .
| | - Paramita Gayen
- Department of Biological Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India .
| | - Rituparna Sinha Roy
- Department of Biological Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India .
- Centre for Advanced Functional Materials , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India
- Centre for Climate and Environmental Studies , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India
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