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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.
Angelique Hermeling
+31850299993
a.hermeling@pednet.eu
Hermeling
info@pednet.eu
Hemophilia A Hemophilia B
This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.
Rationale:
Haemophilia is a rare disease; to improve knowledge international collaboration is needed. Well-defined clinical data will be collected from complete cohorts in order to prevent selection bias.
Objective:
To collect data on bleeding during neonatal period, endogenous (genetic) and exogenous (treatment-related) determinants of inhibitor development and long term outcome.
Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.
The recruitment start and end dates are as follows:
"van den Berg HM, Gouw SC, van der Bom JG. Factor VIII products and inhibitors in severe hemophilia A. N Engl J Med. 2013 Apr 11;368(15):1457. doi: 10.1056/NEJMc1301995. No abstract available."; "23574131"; "Gouw SC, van den Berg HM, Fischer K, Auerswald G, Carcao M, Chalmers E, Chambost H, Kurnik K, Liesner R, Petrini P, Platokouki H, Altisent C, Oldenburg J, Nolan B, Garrido RP, Mancuso ME, Rafowicz A, Williams M, Clausen N, Middelburg RA, Ljung R, van der Bom JG; PedNet and Research of Determinants of INhibitor development (RODIN) Study Group. Intensity of factor VIII treatment and inhibitor development in children with severe hemophilia A: the RODIN study. Blood. 2013 May 16;121(20):4046-55. doi: 10.1182/blood-2012-09-457036. Epub 2013 Apr 3."; "23553768"; "Carcao MD, van den Berg HM, Ljung R, Mancuso ME; PedNet and the Rodin Study Group. Correlation between phenotype and genotype in a large unselected cohort of children with severe hemophilia A. Blood. 2013 May 9;121(19):3946-52, S1. doi: 10.1182/blood-2012-11-469403. Epub 2013 Mar 12."; "23482934"; "Clausen N, Petrini P, Claeyssens-Donadel S, Gouw SC, Liesner R; PedNet and Research of Determinants of Inhibitor development (RODIN) Study Group. Similar bleeding phenotype in young children with haemophilia A or B: a cohort study. Haemophilia. 2014 Nov;20(6):747-55. doi: 10.1111/hae.12470. Epub 2014 Jun 3."; "24893572"; "Fischer K, Ljung R, Platokouki H, Liesner R, Claeyssens S, Smink E, van den Berg HM. Prospective observational cohort studies for studying rare diseases: the European PedNet Haemophilia Registry. Haemophilia. 2014 Jul;20(4):e280-6. doi: 10.1111/hae.12448. Epub 2014 May 2."; "24784937"; "Gouw SC, van der Bom JG, Ljung R, Escuriola C, Cid AR, Claeyssens-Donadel S, van Geet C, Kenet G, Makipernaa A, Molinari AC, Muntean W, Kobelt R, Rivard G, Santagostino E, Thomas A, van den Berg HM; PedNet and RODIN Study Group. Factor VIII products and inhibitor development in severe hemophilia A. N Engl J Med. 2013 Jan 17;368(3):231-9. doi: 10.1056/NEJMoa1208024."; "23323899"; "Andersson NG, Auerswald G, Barnes C, Carcao M, Dunn AL, Fijnvandraat K, Hoffmann M, Kavakli K, Kenet G, Kobelt R, Kurnik K, Liesner R, Makipernaa A, Manco-Johnson MJ, Mancuso ME, Molinari AC, Nolan B, Perez Garrido R, Petrini P, Platokouki HE, Shapiro AD, Wu R, Ljung R. Intracranial haemorrhage in children and adolescents with severe haemophilia A or B - the impact of prophylactic treatment. Br J Haematol. 2017 Oct;179(2):298-307. doi: 10.1111/bjh.14844. Epub 2017 Jul 12."; "28699675"; "Mancuso ME, Fischer K, Santagostino E, Oldenburg J, Platokouki H, Konigs C, Escuriola-Ettingshausen C, Rivard GE, Cid AR, Carcao M, Ljung R, Petrini P, Altisent C, Kenet G, Liesner R, Kurnik K, Auerswald G, Chambost H, Makipernaa A, Molinari AC, Williams M, van den Berg HM; European Pediatric Network for Haemophilia Management (PedNet) the REMAIN (REal life MAnagement of children with INhibitors) Study Group. Risk Factors for the Progression from Low to High Titres in 260 Children with Severe Haemophilia A and Newly Developed Inhibitors. Thromb Haemost. 2017 Dec;117(12):2274-2282. doi: 10.1160/TH17-01-0059. Epub 2017 Dec 6."; "29212115"; "Andersson NG, Chalmers EA, Kenet G, Ljung R, Makipernaa A, Chambost H; PedNet Haemophilia Research Foundation. Mode of delivery in hemophilia: vaginal delivery and Cesarean section carry similar risks for intracranial hemorrhages and other major bleeds. Haematologica. 2019 Oct;104(10):2100-2106. doi: 10.3324/haematol.2018.209619. Epub 2019 Feb 21."; "30792204"; "van den Berg HM, Fischer K, Carcao M, Chambost H, Kenet G, Kurnik K, Konigs C, Male C, Santagostino E, Ljung R; PedNet Study Group. Timing of inhibitor development in more than 1000 previously untreated patients with severe hemophilia A. Blood. 2019 Jul 18;134(3):317-320. doi: 10.1182/blood.2019000658. Epub 2019 Jun 11. No abstract available."; "31186271"; "Male C, Andersson NG, Rafowicz A, Liesner R, Kurnik K, Fischer K, Platokouki H, Santagostino E, Chambost H, Nolan B, Konigs C, Kenet G, Ljung R, Van den Berg M. Inhibitor incidence in an unselected cohort of previously untreated patients with severe haemophilia B: a PedNet study. Haematologica. 2021 Jan 1;106(1):123-129. doi: 10.3324/haematol.2019.239160."; "31919092"; "van den Berg HM, Mancuso ME, Konigs C, D'Oiron R, Platokouki H, Mikkelsen TS, Motwani J, Nolan B, Santagostino E; European Pediatric Network for Haemophilia Management (PedNet). ITI Treatment is not First-Choice Treatment in Children with Hemophilia A and Low-Responding Inhibitors: Evidence from a PedNet Study. Thromb Haemost. 2020 Aug;120(8):1166-1172. doi: 10.1055/s-0040-1713097. Epub 2020 Jun 22."; "32572865"; "Andersson NG, Wu R, Carcao M, Claeyssens-Donadel S, Kobelt R, Liesner R, Makipernaa A, Ranta S, Ljung R; ICH study group. Long-term follow-up of neonatal intracranial haemorrhage in children with severe haemophilia. Br J Haematol. 2020 Jul;190(2):e101-e104. doi: 10.1111/bjh.16740. Epub 2020 Jun 9. No abstract available."; "32519345"; "Platokouki H, Fischer K, Gouw SC, Rafowicz A, Carcao M, Kenet G, Liesner R, Kurnik K, Rivard GE, van den Berg HM. Vaccinations are not associated with inhibitor development in boys with severe haemophilia A. Haemophilia. 2018 Mar;24(2):283-290. doi: 10.1111/hae.13387. Epub 2017 Dec 15."; "29243367"; "Khair K, Ranta S, Thomas A, Lindvall K; PedNet study group. The impact of clinical practice on the outcome of central venous access devices in children with haemophilia. Haemophilia. 2017 Jul;23(4):e276-e281. doi: 10.1111/hae.13241. Epub 2017 May 24."; "28544163"; "Hashemi SM, Fischer K, Moons KGM, van den Berg HM; PedNet Study group. Validation of the prediction model for inhibitor development in PUPs with severe haemophilia A. Haemophilia. 2016 Mar;22(2):e116-e118. doi: 10.1111/hae.12895. Epub 2016 Feb 8. No abstract available."; "26856685"; "Ranta S, Motwani J, Blatny J, Buhrlen M, Carcao M, Chambost H, Escuriola C, Fischer K, Kartal-Kaess M, de Kovel M, Kenet G, Male C, Nolan B, d'Oiron R, Olivieri M, Zapotocka E, Andersson NG, Konigs C. Dilemmas on emicizumab in children with haemophilia A: A survey of strategies from PedNet centres. Haemophilia. 2023 Sep;29(5):1291-1298. doi: 10.1111/hae.14847. Epub 2023 Aug 30."; "37647211"; "Labarque V, Mancuso ME, Kartal-Kaess M, Ljung R, Mikkelsen TS, Andersson NG. F8/F9 variants in the population-based PedNet Registry cohort compared with locus-specific genetic databases of the European Association for Haemophilia and Allied Disorders and the Centers for Disease Control and Prevention Hemophilia A or Hemophilia B Mutation Project. Res Pract Thromb Haemost. 2023 Jan 10;7(1):100036. doi: 10.1016/j.rpth.2023.100036. eCollection 2023 Jan."; "36798899"; "Fischer K, Carcao M, Male C, Ranta S, Pergantou H, Kenet G, Kartal-Kaess M, Konigs C, Carvalho M, Alvarez MT, Brakenhoff T, Chambost H, van den Berg HM. Different inhibitor incidence for individual factor VIII concentrates in 1076 previously untreated patients with severe hemophilia A: data from the PedNet cohort. J Thromb Haemost. 2023 Mar;21(3):700-703. doi: 10.1016/j.jtha.2022.11.020. Epub 2022 Dec 22. No abstract available."; "36696215"; "Ljung R, de Kovel M, van den Berg HM; PedNet study group. Primary prophylaxis in children with severe haemophilia A and B-Implementation over the last 20 years as illustrated in real-world data in the PedNet cohorts. Haemophilia. 2023 Mar;29(2):498-504. doi: 10.1111/hae.14729. Epub 2022 Dec 26."; "36571801"; "Schmidt DE, Michalopoulou A, Fischer K, Motwani J, Andersson NG, Pergantou H, Ranta S; PedNet Study Group. Long-term joint outcomes in adolescents with moderate or severe haemophilia A. Haemophilia. 2022 Nov;28(6):1054-1061. doi: 10.1111/hae.14636. Epub 2022 Aug 4."; "35925557"; "Alvarez-Roman MT, Kurnik K; PedNet Study Group. Care for children with haemophilia during COVID-19: Data of the PedNet study group. Haemophilia. 2021 Jul;27(4):e537-e539. doi: 10.1111/hae.14286. Epub 2021 Mar 8. No abstract available."; "33683753"; "Minna K, Anne M, Beatrice N, Rainer K, Susanna R. Correction of haemostasis can be reduced to four days for CVAD implantation in severe haemophilia A patients: Data from the PedNet study group. Haemophilia. 2021 May;27(3):392-397. doi: 10.1111/hae.14231. Epub 2021 Mar 21."; "33745218"; "Andersson NG, Labarque V, Letelier A, Mancuso ME, Buhrlen M, Fischer K, Kartal-Kaess M, Koskenvuo M, Mikkelsen T, Ljung R; PedNet study group. Novel F8 and F9 gene variants from the PedNet hemophilia registry classified according to ACMG/AMP guidelines. Hum Mutat. 2020 Dec;41(12):2058-2072. doi: 10.1002/humu.24117. Epub 2020 Oct 14."; "32935414"; "Jonker CJ, Oude Rengerink K, Hoes AW, Mol PGM, van den Berg HM. Inhibitor development in previously untreated patients with severe haemophilia: A comparison of included patients and outcomes between a clinical study and a registry-based study. Haemophilia. 2020 Sep;26(5):809-816. doi: 10.1111/hae.14100. Epub 2020 Jul 6."; "32627880"; "Andersson NG, Labarque V, Kartal-Kaess M, Pinto F, Mikkelsen TS, Ljung R, Group PS. Factor VIII genotype and the risk of developing high-responding or low-responding inhibitors in severe hemophilia A: data from the PedNet Hemophilia Cohort of 1,202 children. Haematologica. 2024 Apr 1;109(4):1293-1296. doi: 10.3324/haematol.2023.284095. No abstract available."; "37881836"; "Fischer K, Kenet G, Kurnik K, Carcao M, Oldenburg J, Stamm-Mikkelsen T, Cid Haro AR, Koskenvuo M, Blatny J, Konigs C. Determinants of bleeding before and during immune tolerance in 222 boys with severe hemophilia A and inhibitors >5 BU. Blood Adv. 2024 Jan 23;8(2):369-377. doi: 10.1182/bloodadvances.2023011442."; "38214949"; "van der Zwet K, de Kovel M, Motwani J, van Geet C, Nolan B, Glosli H, Escuriola Ettingshausen C, Konigs C, Kenet G, Fischer K; PedNet Investigators. Bleeding control improves after switching to emicizumab: Real-world experience of 177 children in the PedNet registry. Haemophilia. 2024 May;30(3):685-692. doi: 10.1111/hae.15015. Epub 2024 Apr 5."; "38578720"; "de Kovel MS, Escuriola-Ettingshausen C, Konigs C, Ranta S, Fischer K; PedNet Study Group. Bleeding phenotype according to factor level in 825 children with nonsevere hemophilia: data from the PedNet cohort. J Thromb Haemost. 2024 Jun 10:S1538-7836(24)00322-2. doi: 10.1016/j.jtha.2024.05.030. Online ahead of print."; "38866249"
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This is in the inclusion criteria above
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The study is sponsored by PedNet Haemophilia Research Foundation
Your feedback is important to us. It will help us improve the quality of the study information on this site. Please answer both questions.
You can print or share the study information with your GP/healthcare provider or contact the research team directly.
