Bleeding Incidence in VWD Patients Undergoing On-Demand Treatment
A Prospective, Multicenter, Non-Interventional Study Evaluating the Bleeding Incidence in Patients With Von Willebrand Disease Undergoing On-Demand Treatment
1 other identifier
observational
56
8 countries
15
Brief Summary
The purpose of this study is to prospectively obtain reliable data on the bleeding and treatment pattern of patients with VWD undergoing on-demand treatment with a VWF-containing product over a period of 6 months. The data obtained will be used as a basis for historical comparisons with the bleeding and treatment pattern obtained from a clinical study on the efficacy of prophylactic treatment with a VWF/FVIII concentrate.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jun 2019
15 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 25, 2019
CompletedFirst Submitted
Initial submission to the registry
July 23, 2019
CompletedFirst Posted
Study publicly available on registry
August 12, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 31, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
January 31, 2021
CompletedResults Posted
Study results publicly available
December 7, 2023
CompletedDecember 7, 2023
March 1, 2023
1.6 years
July 23, 2019
November 24, 2021
March 2, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Total Annualized Bleeding Rate (TABR)
The total annualized bleeding rate (TABR) will be calculated as the total number of spontaneous bleeds, traumatic BEs, and other BEs occurring in the time period between the start of data collection for each patient and the Study Completion Visit, divided by the duration (in years) between the start of data collection and the Study Completion Visit. Surgery periods, and BEs occurring within these surgery periods, will be excluded from the calculation of TABR.
Screening through study completion (6 months)
Secondary Outcomes (10)
Spontaneous Annualized Bleeding Rate (SABR)
Screening through study completion (6 months)
Consumption of the VWF-containing Product
Screening through study completion (6 months)
Number of Bleeding Episodes (BEs) Based on a 4-point Efficacy Scale
Screening through study completion (6 months)
Number of Surgery With Successful/Unsuccessful Efficacy Assessment
From start of surgery until end of post-operative period (within 8 days after surgery)
Quality of Life (QoL) Assessed Using the Patient-Reported Outcomes Measurement Information System (PROMIS-29)
At screening visit
- +5 more secondary outcomes
Study Arms (1)
Patients undergoing treatment with a VWF-containing product
Patients with type 3, type 2 (except 2N), or severe type 1 VWD undergoing routine on-demand treatment with a VWF-containing product over a period of 6 months
Interventions
Active substances: VWF concentrates, VWF/FVIII concentrates, Cryoprecipitate VWF-containing products licensed in each participating country
Eligibility Criteria
Overall, 55 previously treated patients aged ≥5.5 years at the time of enrolment, with type 3, type 2 (except 2N), or severe type 1 VWD will be included into this study. Of these 55 patients, at least 6 should have type 3 VWD and at least 6 should be ≥5.5 to \<16 years of age.
You may qualify if:
- Patients who meet all of the following criteria are eligible for the study:
- Male or female patients aged ≥5.5 years at the time of enrolment
- VWD type 1 (baseline von Willebrand factor activity \[VWF:RCo\], \<30 IU/dL), 2A, 2B, 2M, or 3 according to medical history requiring substitution therapy with a VWF-containing product to control bleeding
- Currently receiving frequent on-demand treatment with a VWF-containing product
- In female patients of child-bearing potential using hormonal contraception, the medication class should remain unchanged for the duration of their study participation
- Voluntarily given, fully informed written and signed consent obtained before collection of any patient data
You may not qualify if:
- Patients who meet any of the following criteria are not eligible for the study:
- Patients currently on prophylaxis for VWD (except for perioperative prophylaxis) as well as patients having received treatment once a month for menstrual bleeding, but not for any other bleeds
- Patients whose VWD treatment is planned to be switched from on-demand to prophylactic treatment in the next 6 months
- History, or current suspicion, of VWF or FVIII inhibitors
- Medical history of a thromboembolic event within 6 months before enrolment
- Severe liver or kidney diseases as described in the medical records
- Female patients with an existing or suspected pregnancy or who are breast-feeding at the time of enrolment
- Change in hormonal contraception within 6 months before enrolment
- Cervical or uterine conditions causing abnormal uterine bleeding (including infection or dysplasia)
- Other coagulation disorders or bleeding disorders due to anatomical reasons
- Participation in an interventional clinical study during the 6-month of study period
- Inability to complete the patient diary to reliably evaluate the type, frequency, and treatment of BEs during the 6-month study period
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Octapharmalead
Study Sites (15)
Children's Healthcare of Atlanta
Atlanta, Georgia, 30329, United States
Republican Research Center for Radiation Medicine and Human Ecology
Homyel, Belarus
Specialized Hospital for Active Treatment of Haematological Diseases" EAD, Sofia
Sofia, Bulgaria
"UMHAT Sveta Marina" EAD.
Varna, 9010, Bulgaria
University Hospital Centre Zagreb
Zagreb, 10000, Croatia
Medical Centre Hungarian Defence Forces
Budapest, 1134, Hungary
Debreceni Egyetem Klinikai Központ, Regionális Haemophilia és Thrombophilia Központ
Debrecen, 4032, Hungary
University Clinical Center, Department of Internal Medicine, Hematology
Pécs, 7624, Hungary
Hotel Dieu de France Hospital
Beirut, BP166830, Lebanon
American University of Beirut Medical Center
Beirut, Lebanon
Nini Hospital
Tripoli, Lebanon
Federal State Budgetary Scientific Institution Kirov Scientific-Research Institute of Hematology and Blood Transfusion of Federal
Kirov, 610027, Russia
Morosovskaya Children Clinical Hospital, Moscow Health Department, Department of General Hematology with the Pathology of Hemostasis
Moscow, 119049, Russia
State Institution "National Children's Specialized Hospital "OKHMATDYT" of the Ministry of Health of Ukraine," Center of Hemostasis Pathology
Kyiv, 01135, Ukraine
Community Institution of Lviv Oblast Council "West-Ukrainian Specialized Children's Medical Center
Lviv, 79035, Ukraine
Related Publications (10)
Sadler JE. A revised classification of von Willebrand disease. For the Subcommittee on von Willebrand Factor of the Scientific and Standardization Committee of the International Society on Thrombosis and Haemostasis. Thromb Haemost. 1994 Apr;71(4):520-5.
PMID: 8052974BACKGROUNDRodeghiero F, Castaman G, Tosetto A. How I treat von Willebrand disease. Blood. 2009 Aug 6;114(6):1158-65. doi: 10.1182/blood-2009-01-153296. Epub 2009 May 27.
PMID: 19474451BACKGROUNDCastaman G, Goodeve A, Eikenboom J; European Group on von Willebrand Disease. Principles of care for the diagnosis and treatment of von Willebrand disease. Haematologica. 2013 May;98(5):667-74. doi: 10.3324/haematol.2012.077263.
PMID: 23633542BACKGROUNDMondorf W, Siegmund B, Mahnel R, Richter H, Westfeld M, Galler A, Pollmann H. Haemoassist--a hand-held electronic patient diary for haemophilia home care. Haemophilia. 2009 Mar;15(2):464-72. doi: 10.1111/j.1365-2516.2008.01941.x. Epub 2009 Feb 16.
PMID: 19226411BACKGROUNDBroderick CR, Herbert RD, Latimer J, Mathieu E, van Doorn N, Curtin JA. Feasibility of short message service to document bleeding episodes in children with haemophilia. Haemophilia. 2012 Nov;18(6):906-10. doi: 10.1111/j.1365-2516.2012.02869.x. Epub 2012 Jun 11.
PMID: 22681182BACKGROUNDSholapur NS, Barty R, Wang G, Almonte T, Heddle NM. A survey of patients with haemophilia to understand how they track product used at home. Haemophilia. 2013 Sep;19(5):e289-95. doi: 10.1111/hae.12170. Epub 2013 May 15.
PMID: 23672744BACKGROUNDMaruish M. User's manual for the SF-36v2 Health Survey (3rd edition). Optum Incorporated; 2011.
BACKGROUNDSaris-Baglama, R,DeRosa, M, Raczek, A, Bjorner, J,Turner-Bowker, D, Ware, J. The SF-10™ Health Survey for Children: A User's Guide. QualityMetric Incorporated; 2007.
BACKGROUNDHays RD, Spritzer KL, Schalet BD, Cella D. PROMIS(R)-29 v2.0 profile physical and mental health summary scores. Qual Life Res. 2018 Jul;27(7):1885-1891. doi: 10.1007/s11136-018-1842-3. Epub 2018 Mar 22.
PMID: 29569016BACKGROUNDSidonio RF Jr, Boban A, Dubey L, Inati A, Kiss C, Boda Z, Lissitchkov T, Nemes L, Novik D, Peteva E, Taher AT, Timofeeva MA, Vilchevska KV, Vdovin V, Werner S, Knaub S, Djambas Khayat C. von Willebrand factor/factor VIII concentrate (Wilate) prophylaxis in children and adults with von Willebrand disease. Blood Adv. 2024 Mar 26;8(6):1405-1414. doi: 10.1182/bloodadvances.2023011742.
PMID: 38237075DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Sigurd Knaub, Senior VP CR&D Haematology
- Organization
- Octapharma
Study Officials
- STUDY DIRECTOR
Cristina Solomon, MD
Octapharma
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 23, 2019
First Posted
August 12, 2019
Study Start
June 25, 2019
Primary Completion
January 31, 2021
Study Completion
January 31, 2021
Last Updated
December 7, 2023
Results First Posted
December 7, 2023
Record last verified: 2023-03