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TO EVALUATE THE EFFICACY, SAFETY, PHARMACOKINETICS, AND PHARMACODYNAMICS OF EMICIZUMAB PROPHYLAXIS IN PATIENTS WITH TYPE III VON WILLEBRAND DISEASE

A PHASE III, MULTICENTER, OPEN-LABEL STUDY TO EVALUATE THE EFFICACY, SAFETY, PHARMACOKINETICS, AND PHARMACODYNAMICS OF EMICIZUMAB PROPHYLAXIS IN PATIENTS WITH TYPE III VON WILLEBRAND DISEASE

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2071250029
Enrollment
75
Registered
2025-06-03
Start date
2025-07-29
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type III von Willebrand disease

Interventions

emicizumab: To administer emicizumab subcutaneously at the designated dose.

Sponsors

Kanwal John Pasi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Signed Informed Consent Form (signed by participant's legally authorized representative for participants who have not attained the age of maturity) Signed Assent Form when appropriate, as determined by the prospective participant's age and individual site and country standards Confirmed diagnosis of Type III VWD, based on medical records (all of the below samples are required to be from one setting)

Exclusion criteria

Exclusion criteria: Pregnant or breastfeeding, or intending to become pregnant during the study or within the time frame in which contraception is required. Participants of childbearing potential must have a negative serum pregnancy test result within 7 days prior to initiation of study treatment. Receipt of any of the following: - Emicizumab in a prior investigational study or during the observation period in Study WP45335 (Arm C) - Emicizumab within 24 weeks prior to enrollment(Arm A and Arm B) - An investigational drug to treat or reduce the risk of VWD-related bleeds within 5 half-lives of last drug administration - Any future planned or concurrent non-VWD-related investigational drug, within last 30 days or 5 half-lives, whichever is shorter Any inherited or acquired bleeding disorder other than congenital Type III VWD

Design outcomes

Primary

MeasureTime frame
efficacy, confirmatory To evaluate efficacy of emicizumab by number of treated bleeds over time.

Secondary

MeasureTime frame
safety, efficacy, exploratory, other To evaluate efficacy and safety of Emicizumab by following: - Number of treated bleeds over time - Number of treated spontaneous bleeds over time - Number of treated joint bleeds over time - Incidence and severity of adverse events - Incidence and severity of thromboembolic events with severity - Incidence and severity of thrombotic microangiopathy events - Changes from baseline in physical examination findings, vital signs, and ECG parameters

Countries

Belgium, Canada, Colombia, France, Germany, Italy, Japan, Netherlands, Poland, South Africa, Spain, Sweden, United Kingdom, United States

Contacts

Public ContactClinical trials information

Chugai Pharmaceutical Co., Ltd.

clinical-trials@chugai-pharm.co.jp+81-120189706

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026