RECRUITING

A Study to Assess the Efficacy and Safety of Emicizumab in Participants With Type 3 Von Willebrand Disease

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This is a Phase III, multicenter, open-label clinical study designed to evaluate the efficacy, safety, pharmacokinetics, and pharmacodynamics of emicizumab prophylaxis in participants aged 2 years and above, who have been diagnosed with Type 3 von Willebrand disease (VWD). Participants on prior standard of care (SOC) on-demand therapy will be assessed via a randomized comparison (Arm A - emicizumab prophylaxis and Arm B - continuation of SOC on-demand therapy), while participants on prior SOC prophylactic therapy (Arm C - emicizumab prophylaxis) will be assessed via intra-participant analysis with data obtained from the preceding non-interventional study (NIS), WP45335 (NCT06883240).

Official Title

A Phase III, Multicenter, Open-Label Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Emicizumab Prophylaxis in Patients With Type 3 Von Willebrand Disease

Quick Facts

Study Start:2025-06-27

Study Completion:2028-12-31

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06998524

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:2 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:CHILD, ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
* Confirmed diagnosis of Type 3 von Willebrand disease (VWD), based on medical records * Preexisting medical record verifying the status of von Willebrand factor (VWF) inhibitor (positive or negative, including titer if available) * Adequate hematologic, hepatic, and renal function * For participants of childbearing potential: agreement to remain abstinent or adhere to the contraception requirements * Documented previous use of on-demand therapy with intermittent (less than once a week) on-demand SOC therapy for VWD * Having ≥2 treated bleeds (except menstrual bleeds) with factor concentrate within 24 weeks prior to enrollment * Documented and confirmed previous use of SOC prophylactic therapy for VWD (1-3 times weekly, as per prescribed dose) as described in the eligibility of Study WP45335 * Have completed all study requirements as defined in the WP45335 protocol for at least 24 weeks	* Inherited or acquired bleeding disorder other than Congenital Type 3 VWD * History of gastrointestinal bleeding within 18 months prior to enrollment, or any previous diagnosis of angiodysplasia * History of intracranial hemorrhage * Previous or current treatment for thromboembolic disease or signs of thromboembolic disease * Other conditions (e.g., certain autoimmune diseases) that may increase risk of bleeding or thrombosis * History of clinically significant hypersensitivity associated with monoclonal antibody therapies or components of the emicizumab injection * Use of systemic immunomodulators (e.g., interferon) at enrollment or planned use during the study, with the exception of anti-retroviral therapy

Inclusion Criteria

Exclusion Criteria

* Confirmed diagnosis of Type 3 von Willebrand disease (VWD), based on medical records
* Preexisting medical record verifying the status of von Willebrand factor (VWF) inhibitor (positive or negative, including titer if available)
* Adequate hematologic, hepatic, and renal function
* For participants of childbearing potential: agreement to remain abstinent or adhere to the contraception requirements
* Documented previous use of on-demand therapy with intermittent (less than once a week) on-demand SOC therapy for VWD
* Having ≥2 treated bleeds (except menstrual bleeds) with factor concentrate within 24 weeks prior to enrollment
* Documented and confirmed previous use of SOC prophylactic therapy for VWD (1-3 times weekly, as per prescribed dose) as described in the eligibility of Study WP45335
* Have completed all study requirements as defined in the WP45335 protocol for at least 24 weeks

* Inherited or acquired bleeding disorder other than Congenital Type 3 VWD
* History of gastrointestinal bleeding within 18 months prior to enrollment, or any previous diagnosis of angiodysplasia
* History of intracranial hemorrhage
* Previous or current treatment for thromboembolic disease or signs of thromboembolic disease
* Other conditions (e.g., certain autoimmune diseases) that may increase risk of bleeding or thrombosis
* History of clinically significant hypersensitivity associated with monoclonal antibody therapies or components of the emicizumab injection
* Use of systemic immunomodulators (e.g., interferon) at enrollment or planned use during the study, with the exception of anti-retroviral therapy

Contacts and Locations

Study Contact

Reference Study ID Number: WP45338 https://forpatients.roche.com/

CONTACT

888-662-6728 (U.S. Only)

global-roche-genentech-trials@gene.com

Principal Investigator

Clinical Trials

STUDY_DIRECTOR

Hoffmann-La Roche

Study Locations (Sites)

UC Davis

Sacramento, California, 95817

United States

Collaborators and Investigators

Sponsor: Hoffmann-La Roche

Clinical Trials, STUDY_DIRECTOR, Hoffmann-La Roche

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-06-27

Study Completion Date2028-12-31

Study Record Updates

Study Start Date2025-06-27

Study Completion Date2028-12-31

Terms related to this study

Additional Relevant MeSH Terms

Von Willebrand Disease, Type 3