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Hemophilia B clinical trials

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NCT ID: NCT05152732 Recruiting - Hemophilia B Clinical Trials

Safety and Tolerability of VGB-R04 in Patients With Haemophilia B

Start date: December 28, 2021
Phase: Early Phase 1
Study type: Interventional

An Open-Label, Non-Randomized, uncontrolled, single-dose pilot study of VGB-R04 in subjects with Hemophilia B.

NCT ID: NCT05145127 Recruiting - Hemophilia A Clinical Trials

Open-Label Extension Study of Marstacimab in Hemophilia Participants With or Without Inhibitors

Start date: November 17, 2021
Phase: Phase 3
Study type: Interventional

Study B7841007 is an open-label extension study to assess the long-term safety, tolerability, and efficacy of prophylaxis treatment with marstacimab in participants who did not require "Early Termination" from the Phase 3 Study B7841005 and from the Phase 3 Study B7841008. Study B7841005: approximately 145 adolescent and adult participants 12 to <75 years of age with severe hemophilia A or moderately severe to severe hemophilia B (defined as FVIII activity <1% or FIX activity ≤2%, respectively) with or without inhibitors are expected to be enrolled in Study B7841005 during which they will receive prophylaxis (defined as treatment by SC injection of marstacimab). Study B7841008: this is an ongoing Phase 3, open-label study in pediatric participants <18 years of age with severe hemophilia A (FVIII Coagulation Factor Activity <1%) or moderately severe to severe hemophilia B (FIX Coagulation Factor Activity ≤2%). A sequential approach will be used in enrolling at least 100 pediatric participants, at least 20 of which will be aged ≥12 to <18 years and at least 80 participants will be aged ≥1 to <12 years. At the start of study B7841008, the dosing and data available in adolescent and adult participants in Study B7841005 supported the initiation of B7841008 study in participants aged ≥12 to <18 years. Subsequently, additional safety and efficacy data from adolescent participants in Study B7841005 became available for benefit/risk assessment in support of dosing participants aged ≥6 to <12 years. Based on the positive benefit/risk assessment conducted by both internal Pfizer review and eDMC review, dosing of the ≥6 to <12 years age group was initiated in June 2023 in B7841008 Study. Data from participants ≥6 years from B7841008 Study and Study B7841005 will support the dosing of participants aged ≥1 to <6 years. All participants will be provided the prefilled pen (PFP) for administration of marstacimab in the study. Use of the prefilled syringe (PFS) will be permitted at the investigator's discretion for those participants who have difficulty with administration of the PFP. Additionally, participants will be provided the PFS for use in this study in countries where the PFS is anticipated to be the only presentation available commercially. An optional, open-label, single arm, substudy using the PFP was completed in the first 23 participants rolled over from Study B7841005 who agreed to participate in the substudy.

NCT ID: NCT05086575 Recruiting - Haemophilia B Clinical Trials

Observatory of Patients With Haemophilia B Treated by IdElvion®

OrPHEe
Start date: December 3, 2021
Phase:
Study type: Observational

OrPHEe is a non-interventional, prospective and national study which aim is to record real life data in haemophilia B French patients treated with Idelvion® to confirm the efficacy and safety of this product established in clinical development studies.

NCT ID: NCT05044845 Recruiting - Hemophilia B Clinical Trials

Needs Assessment of Knowledge, Beliefs, and Attitudes of Patients With Hemophilia B About Gene Therapy

Start date: January 18, 2022
Phase:
Study type: Observational

Gene therapy is a paradigm-shifting treatment for hemophilia B patients, particularly in resource-limited countries where factor availability remains low. Transparent and culturally sensitive communication around gene therapy is vital to the success of a high-quality consenting process. Current literature on knowledge, beliefs and attitudes about gene therapy in resource-limited countries is inadequate. In addition, few educational resources to explain basic gene therapy concepts exist in languages other than English. This study aims to address these gaps in knowledge and aid for the development of educational resources to assist the informed consent processes for gene therapy in resource-limited countries. Primary Objective: To assess baseline knowledge, beliefs, and attitudes about gene therapy held by hemophilia B patients globally Secondary Objectives: 1. To explore healthcare workers' (i.e., physicians, nurses, social workers, educators/academic coordinators) perspectives regarding the education needs of hemophilia B patients globally 2. To explore healthcare workers beliefs and attitudes about gene therapy 3. To identify preferences of patients with hemophilia B and their healthcare workers on how/by what method or pathway educational content should be provided.

NCT ID: NCT04817462 Recruiting - Clinical trials for Hemophilia A, Severe

Liver Biopsy In Haemophilia Gene Therapy

Start date: August 5, 2022
Phase:
Study type: Observational

To perform a liver biopsy in haemophilia A and B patients stably expressing human FVIII/FIX for a period of at least 6 months following AAV mediated gene transfer. This is to obtain tissue for analysis, to understand if FIX/FVIII transgenic protein expression is mediated by AAV proviral DNA that is integrated into the host cell DNA or if stable expression in humans is mediated by episomal maintained AAV genome.

NCT ID: NCT04768699 Recruiting - Clinical trials for Hemophilia A With Inhibitor

Study of Recombinant Human Coagulation Factor VIIa for Injection (FⅦa) in Patients With Hemophilia.

Start date: December 1, 2020
Phase: Phase 1
Study type: Interventional

Aim of this trial is to assess the pharmacokinetics and pharmacodynamics (PK/PD) of recombinant human coagulation factor VIIa for injection (FⅦa) in patients with hemophilia.

NCT ID: NCT04647227 Recruiting - Clinical trials for Hemophilia A With Inhibitor

SEVENFACT® for Bleeding Events in Hemophilia With Inhibitors

Start date: June 28, 2021
Phase: Phase 4
Study type: Interventional

Phase IV multi-center, US-centric, open-label, safety study enrolling participants with Hemophilia A or B with inhibitors12 years of age and older, who are either on long term prophylactic treatment (e.g., emicizumab) at risk of experiencing a breakthrough bleeding event (BE), or who are not on prophylactic treatment who may need to control a BE.

NCT ID: NCT04645199 Recruiting - Multiple Myeloma Clinical Trials

National Longitudinal Cohort of Hematological Diseases

NICHE
Start date: December 1, 2020
Phase:
Study type: Observational

Background Hematological diseases are disorders of the blood and hematopoietic organs. The current hematological cohorts are mostly based on single-center or multi-center cases, or cohorts with limited sample size in China. There is a lack of comprehensive and large-scale prospective cohort studies in hematology. The purpose of this study is to analyze the incidence and risk factors of major blood diseases, the treatment methods, prognosis and medical expenses of these patients in China. Method The study will include patients diagnosed with acute myeloid leukemia, multiple myeloma, hemophilia, aplastic anemia, leukemia, myelodysplastic syndrome, lymphoma, bleeding disorders or received bone marrow transplantation in the investigating hospitals from January 1, 2020, and collect basic information, diagnostic and treatment information, as well as medical expense information from medical records. In its current form, the NICHE registry incorporates historical data (collected from 2000) and is systematically collecting prospective data in two phases with broadening reach. The study will use questionnaire to measure the exposure of patients, and prospectively follow-up to collect the prognosis information.

NCT ID: NCT04398628 Recruiting - Sickle Cell Disease Clinical Trials

ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders

Start date: September 30, 2020
Phase:
Study type: Observational

In parallel with the growth of American Thrombosis and Hemostasis Network's (ATHN) clinical studies, the number of new therapies for all congenital and acquired hematologic conditions, not just those for bleeding and clotting disorders, is increasing significantly. Some of the recently FDA-approved therapies for congenital and acquired hematologic conditions have yet to demonstrate long-term safety and effectiveness beyond the pivotal trials that led to their approval. In addition, results from well-controlled, pivotal studies often cannot be replicated once a therapy has been approved for general use.(1,2,3,4) In 2019 alone, the United States Food and Drug Administration (FDA) has issued approvals for twenty-four new therapies for congenital and acquired hematologic conditions.(5) In addition, almost 10,000 new studies for hematologic diseases are currently registered on www.clinicaltrials.gov.(6) With this increase in potential new therapies on the horizon, it is imperative that clinicians and clinical researchers in the field of non-neoplastic hematology have a uniform, secure, unbiased, and enduring method to collect long-term safety and efficacy data. ATHN Transcends is a cohort study to determine the safety, effectiveness, and practice of therapies used in the treatment of participants with congenital or acquired non-neoplastic blood disorders and connective tissue disorders with bleeding tendency. The study consists of 7 cohorts with additional study "arms" and "modules" branching off from the cohorts. The overarching objective of this longitudinal, observational study is to characterize the safety, effectiveness and practice of treatments for all people with congenital and acquired hematologic disorders in the US. As emphasized in a recently published review, accurate, uniform and quality national data collection is critical in clinical research, particularly for longitudinal cohort studies covering a lifetime of biologic risk.(7)

NCT ID: NCT04108260 Recruiting - Hemophilia Clinical Trials

The Effectiveness of Recombinant Coagulation Factor IX With Recombinant Albumin (rIX-FP) in Severe Hemophilia B Patients

Start date: April 21, 2020
Phase: Phase 4
Study type: Interventional

The pivotal clinical data support prolonged dosing intervals of up to 14 days for routine prophylaxis in hemophilia B patients. The majority of adult and pediatric patients using Idelvion for routine prophylaxis had a median annualized spontaneous bleeding rate (AsBR) of 0.00. The majority (99%) of bleeding episodes were managed successfully with one or two infusions, and 94% of bleeds were controlled with only one infusion regardless of the cause or location. The rationale for this study is to collect the effectiveness and safety data of severe hemophilia B patients treated with Idelvion following institutional standard of care. It is the aim of this study to extend the results of the clinical trial program to a broader hemophilia B population, and to compare with current alternative factor IX treatments in Taiwan.