Clinical trial Recruiting at 24 sites Phase1; Phase2 Interventional Ages 12 to 60

Evaluating VGA039 in Healthy Volunteers and Patients with Von Willebrand Disease

Official title: A Multi-Modular Trial to Evaluate VGA039 in Healthy Volunteers and Patients With Von Willebrand Disease and Other Bleeding Disorders (VIVID)

Run by Vega Therapeutics, Inc · NCT05776069 · Data updated 2026-11-12

This study is testing a new treatment called VGA039 to see if it is safe and effective for healthy people and those with von Willebrand Disease.

More Von Willebrand Diseases trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages12 Years to 60 Years
SexAll
Enrollment116 (estimated)
SponsorVega Therapeutics, Inc
Industry-sponsored
Locations25 sites (Los Angeles, California and 24 other locations)
StatusRecruiting
StartedMarch 16, 2023
Main results expectedDecember 2029
Study endsDecember 2029
Registry record updatedAugust 26, 2025
Trial IDNCT05776069 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals aged 12 to 60 with a diagnosis of symptomatic von Willebrand Disease.

Probably not a fit

Patients with known pro-thrombotic disorders or those who have recently used hormonal contraceptives may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The VIVID study is a multi-part clinical trial assessing the safety and efficacy of VGA039, administered both intravenously and subcutaneously, in healthy volunteers and patients with von Willebrand Disease (VWD). It includes a randomized, double-blind, placebo-controlled phase for healthy participants, followed by open-label phases for VWD patients. Participants will be monitored for 15 weeks for intravenous dosing and 8 weeks for subcutaneous dosing. The study aims to explore both single and multiple doses, as well as surgical prophylaxis applications of VGA039.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for patients with von Willebrand Disease, potentially improving their management of bleeding episodes.

How similar studies have gone: While this approach is novel in its specific application, similar studies have shown promise in evaluating treatments for bleeding disorders.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key Inclusion Criteria (All Subjects)

* Subjects, 18 to 60 years of age, inclusive for Parts 1 and 2
* Subjects, 12 to 60 years of age, inclusive for Parts 3 and 5
* No clinically significant laboratory, ECG, or vital signs results.

Additional Key Inclusion Criteria (for Subjects in Part 1 Only) • Body mass index of 18-32 kg/m2

Additional Key Inclusion Criteria (for Subjects in Part 2 Only)

* Subjects with VWD who are symptomatic, defined as having a history of bleeding or bruising.
* Hemoglobin level ≥ 8 g/dL and platelet count ≥ 150 × 109/L at Screening.

Exclusion Key Criteria (All Subjects)

* Use of hormonal contraceptives within 56 days prior to administration of the study drug.
* Subjects with detection of FV Leiden or Prothrombin G20210A mutation, protein C or S deficiency, antithrombin deficiency, or antiphospholipid antibody syndrome at Screening.
* Subjects with other known pro-thrombotic disorders or abnormal findings in any prior laboratory thrombophilia evaluation.
* History of arterial or venous thrombosis, including superficial thrombophlebitis, or embolism.
* Evidence of renal, hepatic, central nervous system, respiratory, cardiovascular disease, cerebrovascular disease, peripheral vascular disease, or metabolic dysfunction.

Additional Key Exclusion Criterion (Subjects in Part 1 Only)

• Baseline FVIII activity \> 150 IU/dL.

Additional Key Exclusion Criteria (Subjects in Parts 2, 3, 4 and 5 Only)

* Baseline FVIII activity \> 50 IU/dL.
* Any acute, clinically significant bleeding event requiring surgical or procedural intervention within 7 days prior to receiving study drug.

Where it's running

  • Orthopedic Institute for Children (UCLA)
    Los Angeles, California, United States
    Recruiting
  • UC Davis Medical Center
    Sacramento, California, United States
    Recruiting
  • University of Colorado School of Medicine
    Aurora, Colorado, United States
    Recruiting
  • Hemophilia of Georgia Center for Bleeding & Clotting Disorders of Emory
    Atlanta, Georgia, United States
    Recruiting
  • Science 37, Inc.
    Morrisville, North Carolina, United States
    Recruiting
  • Hemophilia Center of Western PA
    Pittsburgh, Pennsylvania, United States
    Recruiting
Show 19 more locations
  • Vanderbilt University Medical Center
    Nashville, Tennessee, United States
    Recruiting
  • University of Texas Southwestern
    Dallas, Texas, United States
    Recruiting
  • Washington Center for Bleeding Disorders
    Seattle, Washington, United States
    Recruiting
  • Versiti Comprehensive Center for Bleeding Disorders
    Milwaukee, Wisconsin, United States
    Recruiting
  • Royal Brisbane & Women's Hospital, Queensland Haemophilia Centre
    Herston, Queenland, Australia
    Recruiting
  • Centro de Hemoterapia e Hematologia do Rio de Janeiro HEMORIO
    Rio de Janeiro, Rio de Janeiro, Brazil
    Recruiting
  • Hemocentro Unicamp
    Campinas, São Paulo, Brazil
    Recruiting
  • Hospital das Clinicas - USP Endereco
    São Paulo, São Paulo, Brazil
    Recruiting
  • Hamilton Health Sciences Corporation
    Hamilton, Ontario, Canada
    Recruiting
  • Queens University
    Kingston, Ontario, Canada
    Recruiting
  • St. Michaels Hospital
    Toronto, Ontario, Canada
    Recruiting
  • K J Somaiya Super Speciality Hospital & Research Centre
    Sion, Mumbai, India
    Recruiting
  • Charlotte Maxeke Johannesburg Academic Hospital
    Johannesburg, South Africa
    Recruiting
  • Queen Elizabeth Hospital Birmingham
    Birmingham, Edgbaston, United Kingdom
    Recruiting
  • University Hospital Southampton NHS Foundation Trust
    Southampton, Hampshire, United Kingdom
    Recruiting
  • Royal Free Hospital
    London, London, United Kingdom
    Recruiting
  • Royal London Hospital, Clinical Haematology Research
    Whitechapel, London, United Kingdom
    Recruiting
  • Imperial College Healthcare NHS Trust- Queen Charlotte's & Chelsea Hospital
    London, United Kingdom
    Recruiting
  • Medical University of Vienna
    Vienna, State of Vienna, Austria
    Completed

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.