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VGA039

Phase 3

Von Willebrand Diseases | Small molecule | Hematology |Incyte Corporation|Trials Updated: Sep 14, 2026

VGA039 development status

Highest phase Phase 3
Registered trials 2 across 1 sponsor since Mar 2023

VGA039 target and mechanism

Molecular targetProtein S
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment176

FDA Designations

BREAKTHROUGH_THERAPYFAST_TRACKORPHAN_DRUGRARE_PEDIATRIC_DISEASE

VGA039 clinical trials

VGA039 · 2 trials · 2 indications

Phase 3 1Phase 1 1
NCT07115004Study to Evaluate Subcutaneous (SC) VGA039 in Patients With Von Willebrand Disease (VWD)Von Willebrand Disease (VWD)
RECRUITING60 Analytics
PHASE3RECRUITING
Study to Evaluate Subcutaneous (SC) VGA039 in Patients With Von Willebrand Disease (VWD)
Von Willebrand Disease (VWD)Unlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of bleeding events [Efficacy]
Time Frame: From 7 days after informed consent until 49 weeks after SC study drug initiation
Incidence of Treatment-Emergent Adverse Events [Safety and tolerability]
From start of study drug administration until 15 or 8 weeks after IV or SC study drug administration, respectively

Incidence, nature and severity of adverse events (AEs) and serious adverse events (SAEs), including dose-limiting toxicities (DLTs).

Secondary Endpoints

Incidence of treated bleeding events [Efficacy]
From 7 days from Informed consent until 49 weeks after SC study drug initiation
Incidence, nature and severity of adverse events (AEs) and serious adverse events (SAEs), including hypersensitivity, anaphylaxis, or anaphylactoid reactions
From informed consent until 49 weeks after SC study drug initiation
Plasma concentrations of SC doses of VGA039
From just prior to the start of study drug administration until 49 weeks after SC study drug initiation
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Multiple Doses of VGA039 after observational run-inEXPERIMENTALParticipants who meet eligibility criteria and complete a 24-week observational phase will receive VGA039 SC for approximately 49 weeks.
Part 1PLACEBO_COMPARATORCohorts 1-8 IV or SC VGA039 or Placebo dose to be determined
Part 2EXPERIMENTALCohorts A-H IV or SC VGA039 dose to be determined
Part 3EXPERIMENTALCohorts MD-1 to MD-4, SC VGA039 multiple doses, dose to be determined
Part 4EXPERIMENTALCohorts of VGA039 single dose for surgical prophylaxis
Part 5EXPERIMENTALMultiple doses of VGA039 in open label extension

Interventions

NameTypeDescription
VGA039DRUGVGA039 SC administered for 49-weeks during the interventional phase following a 24-week observational period.
PlaceboOTHERSingle doses of Placebo
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Eligibility Criteria

Age Range12 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites32

Key Inclusion Criteria * 12 to 75 years of age, inclusive * No clinically significant laboratory, ECG, or vital signs results * Documented diagnosis consistent with VWD of any type * Historical annualized bleeding rate (ABR; excluding menstrual bleeds and bleeds under the skin) of both untreated an...

Countries:United StatesAustraliaAustriaBrazilGeorgiaGermanyIrelandItalySouth AfricaUnited KingdomCanadaIndia
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Recent Changes (Last 90 Days)

LOWSep 15, 2026NCT07115004lastUpdatePostDate: changed
LOWSep 15, 2026NCT07115004lastUpdatePostDate: changed
LOWSep 15, 2026NCT07115004lastUpdatePostDate: changed

Frequently asked questions about VGA039

What is VGA039 used for in Von Willebrand Disease?

VGA039 is an investigational small molecule being developed for the treatment of Von Willebrand Disease, a bleeding disorder. It is administered subcutaneously and is being studied in patients aged 12 years and older. Incyte Corporation is developing it as a potential new treatment option for this rare hematology condition.

What does VGA039 target?

VGA039 targets Protein S. By binding to this protein, VGA039 is designed to modulate the coagulation pathway in patients with Von Willebrand Disease. Protein S is a naturally occurring anticoagulant, and targeting it represents a novel approach to treating this bleeding disorder.

Who is developing VGA039?

VGA039 is being developed by Incyte Corporation, which trades on the Nasdaq under the ticker INCY. Incyte is a biopharmaceutical company focused on oncology and hematology, and VGA039 is part of its pipeline for rare bleeding disorders.

What phase is VGA039 in?

VGA039 is in Phase 3 clinical development. The Phase 3 trial is currently recruiting participants, and a Phase 1 trial is also ongoing. VGA039 has not been approved by the FDA and remains an investigational therapy for Von Willebrand Disease.

What clinical trials is VGA039 in?

VGA039 is being evaluated in two clinical trials. The Phase 3 study, NCT07115004, is recruiting 60 patients with Von Willebrand Disease across multiple countries. The Phase 1 study, NCT05776069 (VIVID), is recruiting 116 healthy volunteers and patients. Both trials are randomized, double-blind, and placebo-controlled.

Does VGA039 have FDA designations?

Yes, VGA039 has received four FDA designations: Breakthrough Therapy, Fast Track, Orphan Drug, and Rare Pediatric Disease. These designations are intended to expedite the development and review of therapies for serious or rare conditions such as Von Willebrand Disease.