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Windyga J, Apte S, Frei-Jones M, Fujii T, Lyu CJ, Villarreal Martinez L, Sathar J, Stasyshyn O, Tran H, Zozulya N, Brown Frandsen R, Neergaard JS, Thaung Zaw JJ, Mahlangu J. Disease and treatment burden of patients with haemophilia entering the explorer6 non-interventional study. Eur J Haematol 2024. [PMID: 39030946 DOI: 10.1111/ejh.14277] [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: 04/25/2024] [Revised: 07/01/2024] [Accepted: 07/04/2024] [Indexed: 07/22/2024]
Abstract
OBJECTIVES We aimed to characterise baseline disease and treatment burden in a large population with haemophilia A/B, both with (HAwI/HBwI) and without (HA/HB) inhibitors. METHODS The prospective, non-interventional explorer6 study included patients ≥12 years old with severe HA, severe/moderate HB or HAwI/HBwI of any severity, treated according to local standard of care (excluding previous/current exposure to concizumab or emicizumab). Baseline characteristics and historical clinical data were collected and patient-reported outcomes, including treatment burden, were assessed. RESULTS The explorer6 study enrolled 231 patients with haemophilia (84 HAwI/HBwI) from 33 countries. At baseline, patients with HA/HB treated with prophylaxis had the lowest median annualised bleeding rates (ABRs; 2.0), irrespective of haemophilia type; of these patients, 27.5% (HA) and 31.4% (HB) had target joints. Patients with HAwI/HBwI treated episodically reported the highest treatment burden. Of these patients, 28.5% (HAwI) and 25.1% (HBwI) performed sports activities in the month before screening. CONCLUSION Despite receiving routine clinical care, historical and baseline information from patients enrolled in explorer6 showed that patients with HA/HB treated episodically and patients with HAwI/HBwI had higher ABRs, higher treatment burden and participated in sports less than those with HA/HB treated with prophylaxis. Emerging treatments could be beneficial in addressing these unmet medical needs.
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Affiliation(s)
- Jerzy Windyga
- Department of Hemostasis Disorders and Internal Medicine, Laboratory of Hemostasis and Metabolic Diseases, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | | | - Melissa Frei-Jones
- Pediatric Hematology-Oncology, Joe R. and Teresa Lozano Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | | | | | | | | | | | - Huyen Tran
- The Alfred Hospital, Melbourne, Victoria, Australia
| | | | | | | | | | - Johnny Mahlangu
- University of the Witwatersrand and NHLS, Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa
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2
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Mancuso ME, Biasoli C, Marino R, Buzzi A, Preti D, Sannino L, Tempre R, Bendinelli S, Pompeo E, Siri G, Castaman G. Physical Activity, Bleedings and Quality of Life in Subjects with Haemophilia A without Inhibitors-A Multicenter, Observational Italian Study with a Wearable Device. J Clin Med 2024; 13:3036. [PMID: 38892747 PMCID: PMC11172795 DOI: 10.3390/jcm13113036] [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: 03/19/2024] [Revised: 04/29/2024] [Accepted: 05/16/2024] [Indexed: 06/21/2024] Open
Abstract
Background: This study aimed to gather data on physical activity (PA), bleeding, health-related quality of life, and health status, using a wearable device and an electronic patient-reported outcome (ePRO) app, in individuals with moderate or severe hemophilia A (HA) without inhibitors receiving treatment according to the clinical practice. Methods: This is a 12-month multicenter cohort study conducted in Italy. The primary outcomes included the description of PA by type and intensity, adherence to World Health Organization guidelines, bleeding, and health-related quality of life by EQ-5D questionnaire. PA data were collected continuously through a fitness tracker worn by the patient; all the other variables were collected through ePRO questionnaires. Results: Only 54 of the 103 enrolled subjects (52.4%) used their fitness tracker for the defined valid period; adolescents were the least compliant age group. PA was performed at low rates and intensity. Approximately 52% of the subjects had sedentary behavior. The mean EQ-5D values did not change over time. At least one bleeding was reported in 43.7% of the subjects, mostly with sedentary behavior. The PA in the 2 days preceding the bleeding was comparable to the one observed in the overall observational period. Conclusions: The systematic recording of data through a fitness tracker and ePRO app shows that subjects with HA without inhibitors have lower-than-expected PA and that they still experience issues related to bleeding.
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Affiliation(s)
- Maria Elisa Mancuso
- Center for Thrombosis and Hemorrhagic Diseases, IRCCS Humanitas Research Hospital and Humanitas University, 20089 Milan, Italy;
| | - Chiara Biasoli
- Centro Emofilia, Unità Opertaiva Complessa Medicina Trasfusionale, Dipartimento Patologia, Clinica Ospedale M. Bufalini, CESENA, 47521 Cesena, Italy;
| | - Renato Marino
- Ospedale Policlinico, S.S.D. Centro Emofilia e Trombosi, Piazza Giulio Cesare, 70124 Bari, Italy;
| | | | - Daniele Preti
- Federazione Associazioni Emofilici, 20155 Milan, Italy;
| | - Luigi Sannino
- Roche Italia, Viale G. B. Stucchi, 110, 20900 Monza, Italy; (L.S.); (R.T.); (E.P.)
| | - Rosaria Tempre
- Roche Italia, Viale G. B. Stucchi, 110, 20900 Monza, Italy; (L.S.); (R.T.); (E.P.)
| | - Sara Bendinelli
- Roche Italia, Viale G. B. Stucchi, 110, 20900 Monza, Italy; (L.S.); (R.T.); (E.P.)
| | - Elena Pompeo
- Roche Italia, Viale G. B. Stucchi, 110, 20900 Monza, Italy; (L.S.); (R.T.); (E.P.)
| | - Giacomo Siri
- Alira Health S.r.l., Via Dante 14, 20121 Milan, Italy;
| | - Giancarlo Castaman
- Center for Bleeding Disorders and Coagulation, Department of Oncology, Careggi University Hospital, 50134 Florence, Italy;
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3
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Prudente TP, Camelo RM, Guimarães RA, Roberti MDRF. Emicizumab prophylaxis in people with hemophilia A and inhibitors: a systematic review and meta-analysis. SAO PAULO MED J 2024; 142:e2023102. [PMID: 38747872 PMCID: PMC11087007 DOI: 10.1590/1516-3180.2023.0102.r1.20022024] [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] [Received: 10/15/2022] [Revised: 11/06/2023] [Accepted: 02/20/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Until recently, the treatment of people with hemophilia A and inhibitors (PwHAi) was based on the use of bypassing agents (BPA). However, the advent of emicizumab as prophylaxis has demonstrated promising results. OBJECTIVES We aimed to compare the bleeding endpoints between PwHAi on BPA and those on emicizumab prophylaxis. DESIGN AND SETTING Systematic review of interventions and meta-analysis conducted at the Universidade Federal de Goiás, Goiânia, Goiás, Brazil. METHODS The CENTRAL, MEDLINE, Scopus, and LILACS databases were searched on February 21, 2023. Two authors conducted the literature search, publication selection, and data extraction. The selected publications evaluated the bleeding endpoints between PwHAi on emicizumab prophylaxis and those on BPA prophylaxis. The risk of bias was evaluated according to the Joanna Briggs Institute criteria. A meta-analysis was performed to determine the annualized bleeding rate (ABR) for treated bleeds. RESULTS Five publications (56 PwHAi) were selected from the 543 retrieved records. Overall, bleeding endpoints were lower during emicizumab prophylaxis than during BPA prophylaxis. All the publications had at least one risk of bias. The only common parameter for the meta-analysis was the ABR for treated bleeds. During emicizumab prophylaxis, the ABR for treated bleeds was lower than during BPA prophylaxis (standard mean difference: -1.58; 95% confidence interval -2.50, -0.66, P = 0.0008; I2 = 68.4%, P = 0.0031). CONCLUSION Emicizumab was superior to BPA in bleeding prophylaxis in PwHAi. However, both the small population size and potential risk of bias should be considered when evaluating these results. SYSTEMATIC REVIEW REGISTRATION CRD42021278726, https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=278726.
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Affiliation(s)
- Tiago Paiva Prudente
- Medical student, Faculty of Medicine, Universidade Federal de Goiás (UFG), Goiânia (GO), Brazil
| | - Ricardo Mesquita Camelo
- MD, PhD. Physician, Postdoctoral associate, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte (MG), Brazil
| | - Rafael Alves Guimarães
- RN, PhD. Epidemiologist, Professor, Faculty of Nursing, Universidade Federal de Goiás (UFG), Goiânia (GO), Brazil
| | - Maria do Rosário Ferraz Roberti
- MD, PhD. Physician, Professor, Faculty of Medicine, Universidade Federal de Goiás (UFG), Goiânia (GO), Brazil; Physician, Secretaria de Saúde do Estado de Goiás (SES/GERAT), Goiânia (GO), Brazil
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4
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Reipert BM, Hofbauer CJ, Gangadharan B, Berg V, Donnachie E, Meeks S, Mancuso ME, Bowen J, Brown DL. Qualification of Hemophilia Treatment Centers to Enable Multi-Center Studies of Gene Expression Signatures in Blood Cells from Pediatric Patients. J Clin Med 2023; 12:jcm12052080. [PMID: 36902866 PMCID: PMC10004246 DOI: 10.3390/jcm12052080] [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: 12/30/2022] [Revised: 02/25/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023] Open
Abstract
Hemophilia A is a rare congenital bleeding disorder caused by a deficiency of functionally active coagulation factor VIII (FVIII). Most patients with the severe form of the disease require FVIII replacement therapies, which are often associated with the development of neutralizing antibodies against FVIII. Why some patients develop neutralizing antibodies while others do not is not fully understood. Previously, we could demonstrate that the analysis of FVIII-induced gene expression signatures in peripheral blood mononuclear cells (PBMC) obtained from patients exposed to FVIII replacement therapies provides novel insights into underlying immune mechanisms regulating the development of different populations of FVIII-specific antibodies. The aim of the study described in this manuscript was the development of training and qualification test procedures to enable local operators in different European and US clinical Hemophilia Treatment Centers (HTC) to produce reliable and valid data for antigen-induced gene expression signatures in PBMC obtained from small blood volumes. For this purpose, we used the model antigen Cytomegalovirus (CMV) phosphoprotein (pp) 65. We trained and qualified 39 local HTC operators from 15 clinical sites in Europe and the US, of whom 31 operators passed the qualification at first attempt, and eight operators passed at the second attempt.
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Affiliation(s)
- Birgit M. Reipert
- Baxalta Innovations GmbH, Takeda Company, 1220 Vienna, Austria
- Krems Bioanalytics, IMC University of Applied Sciences Krems, 3500 Krems an der Donau, Austria
- Correspondence:
| | | | | | - Verena Berg
- Krems Bioanalytics, IMC University of Applied Sciences Krems, 3500 Krems an der Donau, Austria
| | - Elizabeth Donnachie
- College of Pharmacy and Health Sciences, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Shannon Meeks
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Emory University, Atlanta, GA 30342, USA
| | - Maria Elisa Mancuso
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Joel Bowen
- Indiana Hemophilia and Thrombosis Center Inc., Indianapolis, IN 46260, USA
| | - Deborah L. Brown
- Department of Pediatrics, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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5
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Camelo RM, Dias MM, Caram-Deelder C, Gouw S, de Magalhães LP, Zuccherato LW, Jardim LL, de Oliveira AG, de Albuquerque Ribeiro R, Franco VKB, do Rosário Ferraz Roberti M, de Araújo Callado FMR, Etto LY, de Cerqueira MAF, Cerqueira MH, Lorenzato CS, de Souza IS, Serafim ÉSS, Garcia AA, Anegawa TH, Neves DCF, Tan DM, van der Bom J, Rezende SM. Time between inhibitor detection and start of immune tolerance induction: Association with outcome in the BrazIT study. J Thromb Haemost 2022; 20:2526-2537. [PMID: 36102352 DOI: 10.1111/jth.15878] [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: 05/13/2022] [Revised: 08/26/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Immune tolerance induction (ITI) is the treatment of choice for eradication of anti-factor VIII (FVIII) neutralizing alloantibodies (inhibitors) in people with inherited hemophilia A and high-responding inhibitor (PwHA-HRi). The association between ITI outcome and time elapsed between inhibitor detection and start of ITI (∆tinhi-ITI ) is debatable. OBJECTIVE The aim of this study was to evaluate this association among a large cohort of severe PwHA-HRi. METHODS Severe (factor VIII activity level <1%) PwHA-HRi on ITI (n = 142) were enrolled in 15 hemophilia treatment centers. PwHA-HRi were treated according to the Brazilian ITI Protocol. ITI outcomes were defined as success (i.e., recovered responsiveness to exogenous FVIII) and failure (i.e., no responsiveness to exogenous FVIII and requirement of bypassing agents to control bleeding). RESULTS Median ages at inhibitor detection and at ITI start were 3.2 years (interquartile range [IQR], 1.6-8.1) and 6.9 years [IQR, 2.6-20.1), respectively. PwHA-HRi were stratified according to ∆tinhi-ITI quartiles: first (0.0-0.6 year), second (>0.6-1.7 year), third (>1.7-9.2 years), and fourth quartile (>9.2-24.5 years). The overall success rate was 65.5% (93/142), with no difference among first, second, third, and fourth quartiles (62.9%, 69.4%, 58.3%, and 71.4%, respectively) even after adjusting the analyses for potential confounders. CONCLUSION In conclusion, delayed ITI start is not associated with failure of ITI in PwHA-HRi. Therefore, ITI should be offered for these patients, regardless of the time elapsed between the detection of inhibitor and the ITI start.
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Affiliation(s)
- Ricardo Mesquita Camelo
- Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Maíse Moreira Dias
- Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Camila Caram-Deelder
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
- Center of Clinical Transfusion Research, Sanquin Research, Leiden, The Netherlands
| | - Samantha Gouw
- Amsterdam UMC, University of Amsterdam, Department of Pediatric Hematology, Amsterdam, the Netherlands
| | | | | | - Letícia Lemos Jardim
- Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Rosângela de Albuquerque Ribeiro
- Centro de Hematologia e Hemoterapia do Ceará (HEMOCE), Fortaleza, Brazil
- Hospital Universitário Walter Cantídeo, Universidade Federal do Ceará, Fortaleza, Brazil
| | | | | | | | - Leina Yukari Etto
- Hemocentro da Paraíba (HEMOÍBA), João Pessoa, Brazil
- Department of Internal Medicine, Center of Medical Sciences, Universidade Federal da Paraíba, João Pessoa, Brazil
| | | | | | | | - Ieda Solange de Souza
- Department of Clinical Haematology, Centro de Hematologia e Hemoterapia do Pará (HEMOPA), Belém, Brazil
- Universitary Hospital João de Barros Barreto, Universidade Federal do Pará, Belém, Brazil
| | | | - Andrea Aparecida Garcia
- Centro de Sangue de São José do Rio Preto, São José do Rio Preto, Brazil
- Fundação Faculdade Regional de Medicina de São José do Rio Preto, São José do Rio Preto, Brazil
| | - Tânia Hissa Anegawa
- Centro de Hematologia Regional de Londrina (HEMEPAR Londrina), Londrina, Brazil
- Faculty of Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | - Daniele Campos Fontes Neves
- Fundação Hemocentro de Rondônia (FHEMERON), Porto Velho, Brazil
- Department of Medicine, Universidade de Rondônia, Porto Velho, Brazil
| | - Doralice Marvulle Tan
- Department of Paediatric Onco-haematology, Faculdade de Medicina de Marília, Marília, Brazil
| | - Johanna van der Bom
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
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6
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Hemoperitoneum as a Life-Threatening Complication of an Acute Cholecystitis in a Patient with Hemophilia A with Inhibitors: A Case Report. Healthcare (Basel) 2022; 10:healthcare10091652. [PMID: 36141264 PMCID: PMC9498687 DOI: 10.3390/healthcare10091652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/22/2022] [Accepted: 08/28/2022] [Indexed: 12/02/2022] Open
Abstract
We present the case of a 52-year-old male with severe hemophilia A with inhibitors, who was diagnosticated with acute lithiasic cholecystitis that required surgical intervention due to lack of favorable response to conservatory treatment. During surgery, hemostatic support was performed with activated recombinant factor VII (rFVIIa, NovoSeven®). The surgery was performed first laparoscopically with adhesiolysis, followed by subcostal laparotomy and cholecystectomy because of the findings of a pericholecystic plastron with abscess and massive inflammatory anatomical modifications. The patient presented postoperative complications, requiring a second surgical intervention, due to the installation of a hemoperitoneum. Hemostatic treatment with rFVIIa was given for a further 3 weeks postoperatively, and the patient was discharged in safe condition. A surgical intervention increases the risk of bleeding in hemophilic patients, which may have vital complications in the absence of adequate hemostatic support and the support of a multidisciplinary team with experience in hemophilic surgery.
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7
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Callaghan MU, Asikanius E, Lehle M, Oldenburg J, Mahlangu J, Uguen M, Chebon S, Kruse-Jarres R, Jiménez-Yuste V, Shima M, Trask P, Kempton CL, Kessler CM, Levy GG, Peyvandi F. Untreated bleeds in people with hemophilia A in a noninterventional study and intrapatient comparison after initiating emicizumab in HAVEN 1-3. Res Pract Thromb Haemost 2022; 6:e12782. [PMID: 36171959 PMCID: PMC9468791 DOI: 10.1002/rth2.12782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 12/31/2022] Open
Abstract
Background Bleeding in people with hemophilia A can be life threatening, and intra‐articular bleeds can result in joint damage. Most clinical studies focus on treated bleeds, while bleeds not treated with coagulation factor(s) (untreated bleeds) are underreported. Objectives We assessed the incidence of untreated bleeds during a noninterventional study (NIS) wherein people with hemophilia A, with or without factor VIII (FVIII) inhibitors, were managed according to standard practice. Patients/Methods Using the Bleed and Medication Questionnaire, we prospectively collected data from three cohorts: Cohort A, adults/adolescents (age ≥12 years) with FVIII inhibitors; Cohort B, children (aged <12 years) with FVIII inhibitors; Cohort C, adults/adolescents without FVIII inhibitors. Untreated bleeds were analyzed for site, frequency, and etiology of bleeding and compared with those during emicizumab prophylaxis in the same individuals after transferring to a Phase III HAVEN trial. Results In the 221 participants enrolled in the NIS (Cohort A, n = 103; Cohort B, n = 24; Cohort C, n = 94), the incidence of untreated bleeds was approximately 40% of all bleeds in people with FVIII inhibitors and 26.2% in adolescents/adults without inhibitors. Approximately 70% of treated bleeds and approximately 54% of untreated bleeds in adults/adolescents were in joints. Untreated joint bleeds were less common (7.1%) in children. Overall, intra‐individual comparisons showed reduced treated/untreated bleeds following transition from standard to emicizumab prophylaxis. Conclusion A significant proportion of bleeding events are untreated in people with hemophilia A. There is a need to further understand why bleeds remain untreated and to capture such events in clinical studies.
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Affiliation(s)
- Michael U Callaghan
- Department of Pediatrics Central Michigan University Detroit Michigan USA.,Agios Pharmaceuticals Cambridge Massachusetts USA
| | - Elina Asikanius
- Product Development, F. Hoffmann-La Roche Ltd Basel Switzerland.,The Finnish Medicines Agency Helsinki Finland
| | - Michaela Lehle
- Product Development, F. Hoffmann-La Roche Ltd Basel Switzerland
| | - Johannes Oldenburg
- Institute of Experimental Haematology and Transfusion Medicine University of Bonn Bonn Germany
| | - Johnny Mahlangu
- Haemophilia Comprehensive Care Centre, Faculty of Health Sciences University of the Witwatersrand and NHLS Johannesburg South Africa
| | - Marianne Uguen
- PDB Biostatistics, F. Hoffmann-La Roche Ltd Basel Switzerland
| | - Sammy Chebon
- PDB Biostatistics, F. Hoffmann-La Roche Ltd Basel Switzerland
| | - Rebecca Kruse-Jarres
- University of Washington and Washington Center For Bleeding Disorders Seattle Washington USA
| | | | - Midori Shima
- Department of Pediatrics Nara Medical University Kashihara Japan
| | - Peter Trask
- Patient Centered Outcomes Research, Genentech, Inc. South San Francisco California USA
| | - Christine L Kempton
- Department of Hematology and Medical Oncology and Hemophilia of Georgia Center for Bleeding & Clotting Disorders of Emory Emory University School of Medicine Atlanta Georgia USA
| | - Craig M Kessler
- The Division of Coagulation Georgetown University Hospital Washington District of Columbia USA
| | - Gallia G Levy
- Product Development, Genentech, Inc. South San Francisco California USA.,Spark Therapeutics, Inc. Philadelphia Pennsylvania USA
| | - Flora Peyvandi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center Milan Italy.,Department of Pathophysiology and Transplantation Università degli Studi di Milano Milan Italy
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8
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Nonneutralizing FVIII-specific antibody signatures in patients with Hemophilia A and in healthy donors. Blood Adv 2021; 6:946-958. [PMID: 34847225 PMCID: PMC8945293 DOI: 10.1182/bloodadvances.2021005745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/29/2021] [Indexed: 11/21/2022] Open
Abstract
Isotypes and IgG subclasses of nonneutralizing FVIII-specific antibodies are similar in hemophilia A patients and healthy subjects. Prevalences, titers, and affinities of nonneutralizing antibodies, however, differ significantly between patients and healthy subjects.
Previous studies identified nonneutralizing FVIII-specific antibodies in the circulation of severe and nonsevere hemophilia A (sHA and nsHA) patients without FVIII inhibitors and also in some healthy individuals. To gain a better understanding of the nature of these nonneutralizing antibody responses, we analyzed and compared anti-FVIII antibody signatures in 3 study cohorts: previously treated sHA as well as nsHA patients without FVIII inhibitors, and healthy donors. FVIII-binding IgM, IgG1-4, and IgA antibodies were differentiated, FVIII-specificity was assessed, and associated apparent affinity constants were determined. Our results indicate that the nonneutralizing FVIII-specific antibody response in all study cohorts is dominated by IgG1 and IgA. Prevalences, titers, and affinities of these nonneutralizing antibodies were higher in the hemophilia A cohorts than in healthy donors. Stratification for the anti-hepatitis C virus (HCV) antibody status demonstrated the presence of FVIII-specific IgA with elevated titers in sHA patients with an active or past HCV infection when compared with HCV antibody-positive nsHA patients or HCV antibody-negative patients and healthy donors. Increased titers and affinities of FVIII-specific IgG1 antibodies were observed in a considerable number of hemophilia A patients as opposed to healthy subjects independently of the patients’ anti-HCV antibody status. Overall, our findings support the hypothesis that the generation of nonneutralizing anti-FVIII antibodies in healthy individuals and in noninhibitor hemophilia A patients might be based on similar immune mechanisms. However, differences in prevalences, titers, and affinities of these antibodies indicate distinct differences in the antibody evolution between healthy individuals and patients.
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9
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The prospective Hemophilia Inhibitor PUP Study reveals distinct antibody signatures prior to FVIII inhibitor development. Blood Adv 2021; 4:5785-5796. [PMID: 33232473 DOI: 10.1182/bloodadvances.2020002731] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/16/2020] [Indexed: 01/30/2023] Open
Abstract
Preventing factor VIII (FVIII) inhibitors following replacement therapies with FVIII products in patients with hemophilia A remains an unmet medical need. Better understanding of the early events of evolving FVIII inhibitors is essential for risk identification and the design of novel strategies to prevent inhibitor development. The Hemophilia Inhibitor Previously Untreated Patients (PUPs) Study (HIPS; www.clinicaltrials.gov #NCT01652027) is the first prospective cohort study to evaluate comprehensive changes in the immune system during the first 50 exposure days (EDs) to FVIII in patients with severe hemophilia A. HIPS participants were enrolled prior to their first exposure to FVIII or blood products ("true PUPs") and were evaluated for different immunological and clinical parameters at specified time points during their first 50 EDs to a single source of recombinant FVIII. Longitudinal antibody data resulting from this study indicate that there are 4 subgroups of patients expressing distinct signatures of FVIII-binding antibodies. Subgroup 1 did not develop any detectable FVIII-binding immunoglobulin G (IgG) antibodies. Subgroup 2 developed nonneutralizing, FVIII-binding IgG1 antibodies, but other FVIII-binding IgG subclasses were not observed. Subgroup 3 developed transient FVIII inhibitors associated with FVIII-binding IgG1 antibodies, similar to subgroup 2. Subgroup 4 developed persistent FVIII inhibitors associated with an initial development of high-affinity, FVIII-binding IgG1 antibodies, followed by IgG3 and IgG4 antibodies. Appearance of FVIII-binding IgG3 was always associated with persistent FVIII inhibitors and the subsequent development of FVIII-binding IgG4. Some of the antibody signatures identified in HIPS could serve as candidates for early biomarkers of FVIII inhibitor development.
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10
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Graf M, Tuly R, Harley C, Pednekar P, Batt K. Understanding the evolution of coverage policies for prophylaxis treatments of hemophilia A without inhibitors: a payer Delphi panel. J Manag Care Spec Pharm 2021; 27:996-1008. [PMID: 33843253 PMCID: PMC10394196 DOI: 10.18553/jmcp.2021.20600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND: The landscape for hemophilia A prophylaxis is rapidly expanding from factor VIII replacement therapy to include novel treatments such as nonfactor replacement therapies that may enhance coagulation (e.g., emicizumab) or inhibit anticoagulant pathways (e.g., fitusiran and concizumab). For payers, this expansion presents challenges in balancing well-established treatments with new options that cost more and have lesser known real-world safety and efficacy. OBJECTIVE: To evaluate likely coverage practices for hemophilia A prophylaxis therapies among U.S. payers given evolving real-world data on safety and efficacy. METHODS: A 3-round modified Delphi process was conducted with representatives of U.S. commercial health plans who had considerable expertise in managing populations of patients with hemophilia. Round 1 consisted of an online questionnaire; round 2 involved an online discussion about the aggregated results from round 1; and round 3 allowed participants to revise their responses from round 1 based on insights gained during round 2. Questions elicited ratings, rankings, and estimates on access restrictions based on given safety and efficacy information for hemophilia A prophylaxis therapies. Consensus was reached if ≥ 74% of panelists (14 of 19) were within 1 SD of the median group estimate during round 3. RESULTS: 19 Payers participated in the research. Among them, 94% dealt with commercial insurance, 94% with Medicare, and 81% with Medicaid; 79% had spent ≥ 5 years in their current role. Panelists reported limited access restrictions on hemophilia A prophylaxis therapies; the most common restrictions were prior authorization (n = 16, 84%) and quantity level limits (n = 13, 67%). Tiering and step therapy were reported by 7 respondents (39%). Respondents agreed that there was an 80% median likelihood that ≥ 9 additional patients with any safety event (e.g., thrombotic event, death) per year would trigger access restrictions, with the median likelihood of restrictions increasing to 95% for another ≥ 10 patients with safety events per year. Respondents also agreed that > 5 thrombotic events requiring treatment per patient per year would have a 98% median likelihood of leading to access restrictions and that ≥ 5 years of real-world safety and efficacy data would be highly likely (95% median likelihood) to affect coverage decisions. Noncoverage was highly unlikely (ranked fifth or sixth of 6 by 14 respondents), as was no restriction-coverage parity (ranked sixth of 6 by 10 respondents). All else being equal, cost continues to affect access policies, with respondents agreeing that a 13%-30% difference in net cost may lead to preferred formulary treatment for a drug with superior efficacy and noninferior safety, inferior efficacy and noninferior safety, or noninferior efficacy and inferior safety. CONCLUSIONS: Payers prefer treatments with well-understood efficacy, safety, and cost over newer treatments with uncertain long-term effects. Relatively unrestricted access to legacy and new hemophilia A prophylaxis will likely continue unless additional real-world safety concerns or major cost differences emerge. DISCLOSURES: Financial support for this study was provided by Takeda Pharmaceutical Company, which was involved in study concept and design. Graf, Tuly, Harley, and Pednekar are employees of PRECISIONheor, a research consultancy to the health and life sciences industries that was contracted by Takeda to conduct this study and write the manuscript. Batt served as a consultant on this project through PRECISIONheor.
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Costs of the management of hemophilia A with inhibitors in Spain. GLOBAL & REGIONAL HEALTH TECHNOLOGY ASSESSMENT 2021; 8:35-42. [PMID: 36627877 PMCID: PMC9616192 DOI: 10.33393/grhta.2021.2234] [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] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/24/2021] [Indexed: 01/13/2023] Open
Abstract
Introduction Emicizumab is a first-in-class monoclonal antibody, recently authorized for the treatment of hemophilia A with inhibitors. This study aims to estimate the direct and indirect costs of the management of hemophilia A with inhibitors, in adult and pediatric patients, including the prophylaxis with emicizumab. Methods We calculated the costs of the on-demand and prophylactic treatments with bypassing agents (activated prothrombin complex concentrate and recombinant activated factor VII) and the emicizumab prophylaxis, from the societal perspective, over 1 year. The study considered direct healthcare costs (drugs, visits, tests, and hospitalizations), direct non-healthcare costs (informal caregivers), and indirect costs (productivity loss). Data were obtained from a literature review and were validated by an expert group. Costs were expressed in 2019 euros. Results Our results showed that the annual costs of the prophylactic treatment per patient varied between €543,062.99 and €821,415.77 for adults, and €182,764.43 and €319,826.59 for children, while on-demand treatment was €532,706.84 and €789,341.91 in adults, and €167,523.05 and €238,304.71 in pediatric patients. In relation to other prophylactic therapies, emicizumab showed the lowest costs, with up to a 34% and 43% reduction in the management cost of adult and pediatric patients, respectively. It reduced the bleeding events and administration costs, as this drug is less frequently administered by subcutaneous route. Emicizumab prophylaxis also decreased the cost of other healthcare resources such as visits, tests, and hospitalizations, as well as indirect costs. Conclusion In comparison to prophylaxis with bypassing agents, emicizumab reduced direct and indirect costs, resulting in cost savings for the National Health System and society.
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Oldenburg J, Tran H, Peyvandi F, Núñez R, Trask P, Chebon S, Mahlangu JN, Lehle M, Jiménez-Yuste V, von Mackensen S. Health-related quality of life and health status in adolescent and adult people with haemophilia A without factor VIII inhibitors-A non-interventional study. Haemophilia 2021; 27:398-407. [PMID: 33576546 DOI: 10.1111/hae.14270] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Real-world data on health-related outcomes in persons with haemophilia A (PwHA) can provide useful information for improving patient care. The global, non-interventional study (NIS; NCT02476942) prospectively collected high-quality data in PwHA, including those without factor VIII (FVIII) inhibitors treated according to local routine clinical practice. AIM To report health-related quality of life (HRQoL) and health status of adult/adolescent PwHA without FVIII inhibitors. METHODS Participants were PwHA without FVIII inhibitors age ≥12 years; they remained on existing episodic treatment or prophylaxis. HRQoL was assessed by Haemophilia Quality of Life Questionnaire for Adults (Haem-A-QoL) or Haemophilia-Specific Quality of Life Assessment for Children and Adolescents Short Form (Haemo-QoL-SF II). Health status was assessed through EuroQol 5-Dimensions 5-Levels (EQ-5D-5L) index utility score and visual analogue scale (EQ-VAS). RESULTS Ninety-four participants enrolled; median age was 34.0 years (range 12-76). Forty-five received episodic treatment and 49 received prophylaxis for a median time of 27.7 weeks and 30.4 weeks, respectively. Mean (standard deviation) baseline Haem-A-QoL total scores were 40.1 (17.0) for the episodic group and 26.6 (14.6) for the prophylaxis group, indicating impairments in HRQoL, which remained consistent over time. Mean EQ-5D-5L IUS scores were similar between treatment regimens (0.8 episodic; 0.9 prophylaxis) and consistent over time. The mean EQ-VAS scores were similar between treatment regimens, and lower on days when bleeding occurred (79.0 vs 85.0 for episodic treatment; 77.0 vs 82.0 for prophylaxis, respectively). CONCLUSIONS Adult and adolescent PwHA without FVIII inhibitors had HRQoL impairments regardless of whether they were treated with episodic or prophylactic standard care with FVIII.
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Affiliation(s)
- Johannes Oldenburg
- Department of Experimental Haematology and Transfusion Medicine, University Clinic Bonn, Bonn, Germany
| | - Huyen Tran
- The Alfred Hospital, Melbourne, Vic., Australia
| | - Flora Peyvandi
- Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, IRCCS Fondazione Ca, Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Ramiro Núñez
- Hospital Universitario Virgen Del Rocio, Seville, Spain
| | - Peter Trask
- Genentech, Inc., South San Francisco, CA, USA
| | | | - Johnny N Mahlangu
- Haemophilia Comprehensive Care Centre, Faculty of Health Sciences, University of the Witwatersrand and NHLS, Johannesburg, South Africa
| | | | | | - Sylvia von Mackensen
- Department of Medical Psychology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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Brackmann HH, Schramm W, Oldenburg J, Cano V, Turecek PL, Négrier C. Origins, Development, Current Challenges and Future Directions with Activated Prothrombin Complex Concentrate for the Treatment of Patients with Congenital Haemophilia with Inhibitors. Hamostaseologie 2020; 40:606-620. [PMID: 32717751 PMCID: PMC7772007 DOI: 10.1055/a-1159-4273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022] Open
Abstract
Congenital haemophilia A (HA) is caused by deficiency of coagulation factor VIII (FVIII) activity, leading to spontaneous or traumatic bleeding events. While FVIII replacement therapy can treat and prevent bleeds, approximately 30% of patients with severe HA develop inhibitor antibodies that render FVIII replacement therapy ineffective. The bypassing agents (BPAs), activated prothrombin complex concentrate (aPCC) and recombinant activated FVII, first approved in 1977 and 1996, respectively, act to generate thrombin independent of pathways that involve factors IX and VIII. Both may be used in patients with congenital haemophilia and inhibitors (PwHIs) for the treatment and prevention of acute bleeds and quickly became standard of care. However, individual patients respond differently to different agents. While both agents are approved for on-demand treatment and perioperative management for patients with congenital haemophilia with inhibitors, aPCC is currently the only BPA approved worldwide for prophylaxis in PwHI. Non-factor therapies (NFTs) have a mechanism of action distinct from BPAs and have reported higher efficacy rates as prophylactic regimens. Nonetheless, treatment challenges remain with NFTs, particularly regarding the potential for synergistic action on thrombin generation with concomitant use of other haemostatic agents, such as BPAs, for the treatment of breakthrough bleeds and in perioperative management. Concomitant use of NFTs with other haemostatic agents could increase the risk of adverse events such as thromboembolic events or thrombotic microangiopathy. This review focuses on the origins, development and on-going role of aPCC in the evolving treatment landscape in the management of PwHI.
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Affiliation(s)
- Hans H. Brackmann
- Haemophilia Center, Institute of Experimental Haematology and Blood Transfusion, University of Bonn, Bonn, Germany
| | - Wolfgang Schramm
- Rudolf Marx-Stiftung für Hämostaseologie, Universität München and Bluterbetreuung Bayern e. V. (BBB) - Germany
| | - Johannes Oldenburg
- Haemophilia Center, Institute of Experimental Haematology and Blood Transfusion, University of Bonn, Bonn, Germany
| | - Viridiana Cano
- Shire International GmbH, a Takeda company, Zürich, Switzerland
| | | | - Claude Négrier
- Haemophilia and Thrombosis Centre, Louis Pradel Hospital, University Claude Bernard Lyon 1, Lyon, France
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Polack B, Trossaërt M, Cousin M, Baffert S, Pruvot A, Godard C. Cost-effectiveness of emicizumab vs bypassing agents in the prevention of bleeding episodes in haemophilia A patients with anti-FVIII inhibitors in France. Haemophilia 2020; 27:e1-e11. [PMID: 33210412 DOI: 10.1111/hae.14129] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/16/2020] [Accepted: 07/27/2020] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The development of an anti-FVIII inhibitor is the most serious complication of haemophilia A occurring in up to 30% of severe haemophilic patients. The current management of haemophilia A with inhibitor uses bypassing agents (BPA) and represents a significant therapeutic burden together with a limited adherence to prophylactic treatment. Emicizumab is the first monoclonal antibody developed in haemophilia A approved for the prevention of bleeding episodes in patients with anti-FVIII inhibitor. AIM The purpose of this study is to evaluate the incremental cost-effectiveness ratio (ICER) of emicizumab versus BPAs. METHODS A Markov model was developed over a five-year time horizon to estimate the comparative costs and benefits of the different therapeutic approaches in this rare disease. Model inputs were clinical, including annual bleeding rate and quality of life, and economical including mainly costs of prophylaxis, bleeds and adverse events. RESULTS Emicizumab treatment is dominant, ie lest costly and more effective, in the base-case analysis saving 234 191 € for a gain of 0.88 QALY. This is confirmed by both the deterministic and probabilistic sensitivity analyses. The main limit of the study remains the absence of long-term clinical data allowing to relate treatment consumption to clinical benefit, especially in the progression of haemophilic arthropathy. CONCLUSION Our results show that emicizumab is a cost-effective treatment allowing to consider an easy to implement prophylactic treatment for haemophilia A patients with anti-FVIII inhibitors.
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Affiliation(s)
- Benoît Polack
- Département d'Hématologie, Centre Hospitalier Universitaire Grenoble Alpes, Laboratoire TIMC-IMAG, Institut de Biologie et de Pathologie, Université Grenoble Alpes, CNRS UMR 5525, Grenoble, France
| | - Marc Trossaërt
- Haemophilia Treatment Center, University Hospital, Nantes, France
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Schmitt C, Adamkewicz JI, Xu J, Petry C, Catalani O, Young G, Negrier C, Callaghan MU, Levy GG. Pharmacokinetics and Pharmacodynamics of Emicizumab in Persons with Hemophilia A with Factor VIII Inhibitors: HAVEN 1 Study. Thromb Haemost 2020; 121:351-360. [PMID: 33086400 PMCID: PMC7895541 DOI: 10.1055/s-0040-1717114] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Emicizumab, a bispecific monoclonal antibody, bridges activated factor IX (FIXa) and FX, replacing the function of missing FVIIIa to restore effective hemostasis in persons with hemophilia A (PwHA). Here we assess pharmacokinetic (PK) and pharmacodynamic (PD) biomarkers in PwHA with FVIII inhibitors in the Phase III HAVEN 1 study (NCT02622321). Blood samples from 112 PwHA receiving 1.5 mg/kg once-weekly subcutaneous emicizumab were analyzed at central laboratories. Emicizumab concentrations for PK analysis were measured via validated immunoassay. PD effects were assessed using FVIII chromogenic activity assay containing human factors (Hyphen Biophen FVIII:C), and by FXIa-triggered thrombin generation (TG). Activated partial thromboplastin time (aPTT), prothrombin time (PT), antigen levels of FIX and FX, fibrinogen, D-dimer, and prothrombin fragment 1.2 (PF1.2) levels were determined. Emicizumab trough concentrations ≥ 50 µg/mL were maintained throughout the study. FVIII-like activity and TG (peak height) correlated with emicizumab concentrations and remained above 20 U/dL and 100 nM, respectively, with a weekly maintenance dose, theoretically converting persons with severe hemophilia A to a mild disease phenotype. aPTT was normalized at subtherapeutic concentrations of emicizumab. Plasma concentrations of target antigens FIX and FX were not significantly affected by emicizumab treatment; nor were fibrinogen, PT (international normalized ratio), D-dimer, or PF1.2. The PK profile of once-weekly emicizumab in HAVEN 1 provides sustained therapeutic plasma levels, consistent with population PK models. Both the PK profile and the PD and safety biomarkers are consistent with the established efficacy of emicizumab prophylaxis in PwHA with FVIII inhibitors.
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Affiliation(s)
- Christophe Schmitt
- Department of Clinical Pharmacology, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Joanne I Adamkewicz
- Department of Oncology Biomarker Development, Genentech, Inc., South San Francisco, California, United States
| | - Jin Xu
- Department of Clinical Research, Genentech, Inc., South San Francisco, California, United States
| | - Claire Petry
- Department of Clinical Pharmacology, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Olivier Catalani
- Department of Pharma-Development, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Guy Young
- Hemostasis and Thrombosis Program, Children's Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, California, United States
| | - Claude Negrier
- Hematology Department, Louis Pradel Hospital, University Claude Bernard, Lyon, France
| | - Michael U Callaghan
- Division of Hematology/Oncology, Children's Hospital of Michigan, Detroit, Michigan, United States
| | - Gallia G Levy
- Department of Pharma Development, Genentech, Inc., South San Francisco, California, United States
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Oldenburg J, Shima M, Kruse-Jarres R, Santagostino E, Mahlangu J, Lehle M, Selak Bienz N, Chebon S, Asikanius E, Trask P, Mancuso ME, Jiménez-Yuste V, von Mackensen S, Levy GG. Outcomes in children with hemophilia A with inhibitors: Results from a noninterventional study. Pediatr Blood Cancer 2020; 67:e28474. [PMID: 32776489 DOI: 10.1002/pbc.28474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 04/22/2020] [Accepted: 05/03/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND Data regarding management of pediatric persons with hemophilia A (PwHA) with factor VIII (FVIII) inhibitors are limited. This prospective noninterventional study (NCT02476942) evaluated annualized bleeding rates (ABRs), safety, and health-related quality of life (HRQoL) in pediatric PwHA with FVIII inhibitors. PROCEDURE PwHA aged <12 years with current FVIII inhibitors and high-titer inhibitor history were enrolled. Participants remained on usual treatment; no interventions were applied. Outcomes included ABR, safety, and HRQoL. RESULTS Twenty-four PwHA aged 2-11 years (median 7.5) were enrolled and monitored for 8.7-44.1 weeks (median 23.4). In the episodic (n = 10) and prophylactic (n = 14) groups, respectively, 121 of 185 (65.4%) and 101 of 186 (54.3%) bleeds were treated using activated prothrombin complex concentrate (aPCC) and/or recombinant activated FVII (rFVIIa). ABRs (95% confidence interval) were 19.4 (13.2-28.4) and 18.5 (14.2-24.0) for treated bleeds, and 32.7 (20.5-52.2) and 33.1 (22.4-48.9) for all bleeds, respectively. Most prophylactic group participants (92.9%) were prescribed aPCC; 50% adhered to their prescribed treatment regimen. Adherence to prophylactic rFVIIa was not assessed. Serious adverse events included hemarthrosis (12.5%) and mouth hemorrhage (12.5%); the most common nonserious adverse event was viral upper respiratory tract infection (12.5%). HRQoL showed functional impairment at baseline; scores remained stable throughout, with little intergroup variation. CONCLUSIONS ABRs remained high in pediatric PwHA with inhibitors receiving standard treatment. This study demonstrates the need for more effective treatments, with reduced treatment burden, to prevent bleeds, increase prophylaxis adherence, and improve patient outcomes.
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Affiliation(s)
- Johannes Oldenburg
- Institute of Experimental Hematology and Transfusion Medicine, Universitätsklinikum Bonn, Bonn, Germany
| | - Midori Shima
- Department of Pediatrics, Nara Medical University, Nara, Japan
| | - Rebecca Kruse-Jarres
- Washington Center for Bleeding Disorders at Bloodworks Northwest, University of Washington, Seattle, Washington
| | - Elena Santagostino
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy
| | - Johnny Mahlangu
- Haemophilia Comprehensive Care Centre, Faculty of Health Sciences, University of the Witwatersrand and NHLS, Johannesburg, South Africa
| | | | | | | | | | - Peter Trask
- Genentech, Inc., South San Francisco, California
| | - Maria Elisa Mancuso
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy
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Efficacy, safety, and pharmacokinetics of emicizumab prophylaxis given every 4 weeks in people with haemophilia A (HAVEN 4): a multicentre, open-label, non-randomised phase 3 study. LANCET HAEMATOLOGY 2019; 6:e295-e305. [DOI: 10.1016/s2352-3026(19)30054-7] [Citation(s) in RCA: 178] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/01/2019] [Accepted: 03/05/2019] [Indexed: 01/04/2023]
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Affiliation(s)
- Guy Young
- Hemostasis and Thrombosis Center and Clinical Coagulation Laboratory Children's Hospital Los Angeles Professor of Pediatrics University of Southern California Keck School of Medicine Los Angeles CA USA
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Mahlangu J, Oldenburg J, Callaghan MU, Shima M, Mancuso ME, Trask P, Recht M, Garcia C, Yang R, Lehle M, Macharia H, Asikanius E, Levy GG, Kruse‐Jarres R, von Mackensen S. Health-related quality of life and health status in persons with haemophilia A with inhibitors: A prospective, multicentre, non-interventional study (NIS). Haemophilia 2019; 25:382-391. [PMID: 31016855 PMCID: PMC6850115 DOI: 10.1111/hae.13731] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 01/15/2019] [Accepted: 02/19/2019] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Real-world data (RWD) on health-related outcomes in persons with haemophilia A (PwHA) provide insights into patient needs and can guide clinical study design. A global, prospective, non-interventional study (NIS; NCT02476942) collected detailed RWD on bleeding outcomes, health-related quality of life (HRQoL) and health status in PwHA treated per local routine clinical practice. AIM To report HRQoL and health status in the adult/adolescent PwHA with inhibitors cohort in the NIS. METHODS This cohort enrolled PwHA aged ≥12 years with high-titre factor VIII inhibitor history. Participants remained on their usual treatment (no protocol-specified interventions). Health-related outcomes: Haemophilia Quality of Life Questionnaire for Adults (Haem-A-QoL), Haemophilia-specific Quality of Life Questionnaire for Children Short Form (Haemo-QoL SF), EuroQol 5-Dimensions 5-Levels (EQ-5D-5L) index utility score (IUS) and visual analogue scale (EQ-VAS). RESULTS One hundred three participants were enrolled on episodic (n = 75) or prophylactic treatment (n = 28); median (range) age, 31 (12-75) years; median (range) observation time, 26 (4-70) weeks. Haem-A-QoL scores indicated impairments in HRQoL aspects; comparable between episodic/prophylactic regimens and relatively consistent over time. Haemo-QoL SF scores with both regimens varied over time, and appeared poorer with episodic than prophylactic treatment. IUS and EQ-VAS were comparable between regimens, stable over time and lower on bleeding days. Mean proportions of missed work and school days were 16% and 23%, respectively; mean (standard deviation) number of days hospitalized was 3.2 (8.8) (comparable between groups). CONCLUSIONS These RWD demonstrate that PwHA with inhibitors have impaired HRQoL, despite standard treatment, and that more effective treatment options are needed.
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Affiliation(s)
- Johnny Mahlangu
- Haemophilia Comprehensive Care Centre, Faculty of Health SciencesUniversity of the Witwatersrand and NHLSJohannesburgSouth Africa
| | - Johannes Oldenburg
- Department of Experimental Haematology and Transfusion MedicineUniversity Clinic BonnBonnGermany
| | | | - Midori Shima
- Department of PediatricsNara Medical UniversityKashihara, NaraJapan
| | | | - Peter Trask
- Genentech, Inc.South San FranciscoCalifornia
| | | | | | - Renchi Yang
- Institute of Hematology and Blood Diseases HospitalChinese Academy of Medical SciencesTianjinChina
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Kruse‐Jarres R, Oldenburg J, Santagostino E, Shima M, Kempton CL, Kessler CM, Lehle M, Chebon S, Selak Bienz N, Asikanius E, Mahlangu J. Bleeding and safety outcomes in persons with haemophilia A without inhibitors: Results from a prospective non‐interventional study in a real‐world setting. Haemophilia 2019; 25:213-220. [DOI: 10.1111/hae.13655] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/09/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Rebecca Kruse‐Jarres
- Washington Center for Bleeding Disorders at Bloodworks Northwest Seattle Washington
| | | | - Elena Santagostino
- Centro Emofilia e Trombosi A. Bianchi Bonomi IRCCS Fondazione Ca' Granda Milano Italy
| | - Midori Shima
- Department of Pediatrics Nara Medical University Kashihara Japan
| | - Christine L. Kempton
- Department of Hematology and Medical Oncology Emory School of Medicine Atlanta Georgia
| | - Craig M. Kessler
- Lombardi Comprehensive Cancer Center Georgetown University Medical Center Washington District of Columbia
| | | | | | | | | | - Johnny Mahlangu
- Haemophilia Comprehensive Care Centre, Faculty of Health Sciences University of the Witwatersrand and NHLS Parktown, Johannesburg South Africa
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