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Trial · NCT04953884

Efficacy, PK, Immunogenicity and Safety of Wilate in Severe Von Willebrand Disease (VWD) Patients <6 Years of Age

NCT04953884, Phase 3, Completed, Octapharma; results first posted 2026-02-20

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Efficacy, PK, Immunogenicity and Safety of Wilate in Severe Von Willebrand Disease (VWD) Patients <6 Years of Age. Trials, record NCT04953884. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04953884

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Efficacy, PK, Immunogenicity and Safety of Wilate in Severe Von Willebrand Disease (VWD) Patients <6 Years of Age
NCT number
NCT04953884
Status
Completed
Phases
Phase 3
Enrollment
12 participants, actual
Lead sponsor
Octapharma
Conditions
Von Willebrand Disease
Interventions
Wilate
First posted
2021-07-08
Last updated
2026-02-20
Results first posted
2026-02-20

Source ClinicalTrials.gov

Registered outcomes27

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryTotal Annualised Bleeding Rate (TABR) During Prophylactic Treatment With Wilate.During 12 months of prophylactic treatment
TABR is defined as the total number of bleeding episodes (BEs) including spontaneous, traumatic, and other bleeds, occurring during the period from the first prophylactic dose of wilate to the study completion visit, divided by the duration (in years) between these two time points. Bleeding episodes that occurred during surgery periods were excluded from the calculation of TABR. Total BEs refers to all bleeding episodes that occurred during the study period, regardless of whether they were treated with wilate or not. Treated BEs are a subset of total BEs comprising of bleeding episodes that were treated with wilate.
SecondaryArea Under the Curve (AUC) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateMean AUC of VWF:Ac after PK injection of wilate as measured by chromogenic assay.
SecondaryArea Under the Curve (AUC) of Wilate for FVIII (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateMean AUC of FVIII after PK injection of wilate as measured by chromogenic assay.
SecondaryAUC Normalised for the Administered Dose (AUCnorm) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean AUC of VWF:Ac after PK injection of wilate, normalised for the actual administered dose (IU/kg), over time. AUC norm was measured and reported as \[h\*kg/IU\]/(dL/IU) which could also be reported as h\*kg/dL.
SecondaryAUC Normalised for the Administered Dose (AUCnorm) of Wilate for FVIII:C (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean AUC of FVIII after PK injection of wilate, normalised for the actual administered dose (IU/kg), over time. AUC norm was measured and reported as \[h\*kg/IU\]/(dL/IU) which could also be reported as h\*kg/dL.
SecondaryClearance (CL) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean clearance (CL) of VWF:Ac, measured by ristocetin cofactor assay \[VWF:RCo\]) after PK injection of wilate, calculated as the ratio of dose administered to the area under the plasma concentration-time curve (AUC), over time. Clearance was defined as the rate of drug elimination divided by plasma concentration, giving a volume of plasma from which drug is completely removed per unit of time.
SecondaryClearance (CL) of Wilate for FVIII:C (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean clearance (CL) of FVIII:C, measured by one-stage assay \[OS\]) after PK injection of wilate, calculated as the ratio of dose administered to the area under the plasma concentration-time curve (AUC), over time.
SecondaryMaximum Plasma Concentration (Cmax) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean maximum plasma concentration (Cmax) of VWF:Ac, measured by ristocetin cofactor assay \[VWF:RCo\]) after PK injection of wilate, as determined from the observed peak value in the plasma concentration-time profile.
SecondaryMaximum Plasma Concentration (Cmax) of Wilate for FVIII:C (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean maximum plasma concentration (Cmax) of FVIII:C, measured by one-stage assay \[OS\]) after PK injection of wilate, as determined from the observed peak value in the plasma concentration-time profile.
SecondaryMean Residence Time (MRT) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilate
Mean residence time (MRT) of VWF:Ac, measured by ristocetin cofactor assay \[VWF:RCo\]) after PK injection of wilate, calculated as the average time a VWF:Ac molecule remains in the body, derived from the ratio of area under the first moment curve (AUMC) to AUC.

Outcomes27

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYTotal Annualised Bleeding Rate (TABR) During Prophylactic Treatment With Wilate.During 12 months of prophylactic treatmentThe analysis population consists of all patients in the full analysis set (FAS)Annualized number of bleeding episodesMEAN
SECONDARYArea Under the Curve (AUC) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateThe analysis population consists of all patients in the PK per protocol population (PK-PP).h*IU/dLMEAN
SECONDARYArea Under the Curve (AUC) of Wilate for FVIII (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateOf the 10 patients in the PK per protocol population (PK-PP), evaluable data for FVIII measurements was available for only 8 patients.h*IU/dLMEAN
SECONDARYAUC Normalised for the Administered Dose (AUCnorm) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateThe analysis population consists of all 10 patients in the PK per protocol population (PK-PP).h*kg/dLMEAN
SECONDARYAUC Normalised for the Administered Dose (AUCnorm) of Wilate for FVIII:C (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateOf the 10 patients in the PK per protocol population (PK-PP), evaluable data for FVIII measurements was available for only 8 patients.h*kg/dLMEAN
SECONDARYClearance (CL) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateThe analysis population consists of all 10 patients in the PK per protocol population (PK-PP).dL/h/kgMEAN
SECONDARYClearance (CL) of Wilate for FVIII:C (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateOf the 10 patients in the PK per protocol population (PK-PP), evaluable data for FVIII measurements was available for only 8 patients.dL/h/kgMEAN
SECONDARYMaximum Plasma Concentration (Cmax) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateThe analysis population consists of all 10 patients in the PK per protocol population (PK-PP).IU/dLMEAN
SECONDARYMaximum Plasma Concentration (Cmax) of Wilate for FVIII:C (OS) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateOf the 10 patients in the PK per protocol population (PK-PP), evaluable data for FVIII measurements was available for only 8 patients.IU/dLMEAN
SECONDARYMean Residence Time (MRT) of Wilate for VWF:Ac (VWF:RCo) Over TimeAt baseline, 15 minutes, 3, 9, 24, 48 and 72 hours after dosing of 80 IU/kg BW wilateThe analysis population consists of all 10 patients in the PK per protocol population (PK-PP).hoursMEAN

Results by group40

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Total Annualised Bleeding Rate (TABR) During Prophylactic Treatment With Wilate.Wilate TreatmentTotal BEs4.6Standard Deviation 6.1Annualized number of bleeding episodes
Total Annualised Bleeding Rate (TABR) During Prophylactic Treatment With Wilate.Wilate TreatmentTreated BEs3.7Standard Deviation 5.1Annualized number of bleeding episodes
Area Under the Curve (AUC) of Wilate for VWF:Ac (VWF:RCo) Over TimeWilate Treatment1100Standard Deviation 532h*IU/dL
Area Under the Curve (AUC) of Wilate for FVIII (OS) Over TimeWilate Treatment2410Standard Deviation 1122h*IU/dL
AUC Normalised for the Administered Dose (AUCnorm) of Wilate for VWF:Ac (VWF:RCo) Over TimeWilate Treatment13.7Standard Deviation 6.7h*kg/dL
AUC Normalised for the Administered Dose (AUCnorm) of Wilate for FVIII:C (OS) Over TimeWilate Treatment30.1Standard Deviation 14.2h*kg/dL
Clearance (CL) of Wilate for VWF:Ac (VWF:RCo) Over TimeWilate Treatment0.09Standard Deviation 0.04dL/h/kg
Clearance (CL) of Wilate for FVIII:C (OS) Over TimeWilate Treatment0.04Standard Deviation 0.03dL/h/kg
Maximum Plasma Concentration (Cmax) of Wilate for VWF:Ac (VWF:RCo) Over TimeWilate Treatment105Standard Deviation 19.7IU/dL
Maximum Plasma Concentration (Cmax) of Wilate for FVIII:C (OS) Over TimeWilate Treatment114.1Standard Deviation 27.1IU/dL

Participant flow9

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDWilate Treatment12
Overall StudyFull analysis set (FAS)Wilate Treatment12
Overall StudySafety analysis set (SAF)Wilate Treatment12
Overall StudyStudy population of patients undergoing pharmacokinetic analysis (PK)Wilate Treatment11
Overall StudyStudy population of patients undergoing pharmacokinetic analysis as Per-protocol (PK-PP)Wilate Treatment10
Overall StudyPer-protocol population (PP)Wilate Treatment8
Overall StudySurgery set (SURG)Wilate Treatment1
Overall StudyCOMPLETEDWilate Treatment11
Overall StudyNOT COMPLETEDWilate Treatment1

Adverse events32

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherBronchitisInfections and infestationsWilate Treatment1121
otherConjunctivitisInfections and infestationsWilate Treatment1121
otherEar infectionInfections and infestationsWilate Treatment1121
otherGastroenteritisInfections and infestationsWilate Treatment1121
otherNasopharyngitisInfections and infestationsWilate Treatment2122
otherPharyngitisInfections and infestationsWilate Treatment1121
otherPneumoniaInfections and infestationsWilate Treatment1121
otherPulpitis dentalInfections and infestationsWilate Treatment1121
otherRespiratory tract infectionInfections and infestationsWilate Treatment1121
otherRespiratory tract infection viralInfections and infestationsWilate Treatment1121

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityWilate Treatment012
Total, other adverse eventsWilate Treatment1012
Total, serious adverse eventsWilate Treatment412

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04953884

GET https://conductscience.org/api/trials/v1/NCT04953884/registered?page=2