Flag of the European Union EU Clinical Trials Register Help

Clinical trials

The European Union Clinical Trials Register   allows you to search for protocol and results information on:
  • interventional clinical trials that were approved in the European Union (EU)/European Economic Area (EEA) under the Clinical Trials Directive 2001/20/EC
  • clinical trials conducted outside the EU/EEA that are linked to European paediatric-medicine development

  • EU/EEA interventional clinical trials approved under or transitioned to the Clinical Trial Regulation 536/2014 are publicly accessible through the
    Clinical Trials Information System (CTIS).


    The EU Clinical Trials Register currently displays   44335   clinical trials with a EudraCT protocol, of which   7366   are clinical trials conducted with subjects less than 18 years old.   The register also displays information on   18700   older paediatric trials (in scope of Article 45 of the Paediatric Regulation (EC) No 1901/2006).

    Phase 1 trials conducted solely on adults and that are not part of an agreed paediatric investigation plan (PIP) are not publicly available (see Frequently Asked Questions ).  
     
    Examples: Cancer AND drug name. Pneumonia AND sponsor name.
    How to search [pdf]
    Search Tips: Under advanced search you can use filters for Country, Age Group, Gender, Trial Phase, Trial Status, Date Range, Rare Diseases and Orphan Designation. For these items you should use the filters and not add them to your search terms in the text field.
    Advanced Search: Search tools
     

    < Back to search results

    Download PDF

    Clinical Trial Results:
    A Phase 3, Prospective, Multicenter, Open-label Study of Efficacy, Safety, and Pharmacokinetics of PEGylated Recombinant Factor VIII (ADYNOVATE) Administered for Prophylaxis and Treatment of Bleeding in Chinese Previously Treated Patients with Severe Hemophilia A (FVIII <1%).

    Summary
    EudraCT number
    2023-000502-26
    Trial protocol
    Outside EU/EEA  
    Global end of trial date
    05 Sep 2024

    Results information
    Results version number
    v1(current)
    This version publication date
    21 Mar 2025
    First version publication date
    21 Mar 2025
    Other versions

    Trial information

    Close Top of page
    Trial identification
    Sponsor protocol code
    TAK-660-3001
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT05707351
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Takeda
    Sponsor organisation address
    95 Hayden Ave, Lexington, MA, United States, 02421
    Public contact
    Study Director, Takeda, TrialDisclosures@takeda.com
    Scientific contact
    Study Director, Takeda, TrialDisclosures@takeda.com
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    No
    Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
    Yes
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    05 Sep 2024
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    05 Sep 2024
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The main purpose of this study was to evaluate the safety, efficacy, and pharmacokinetics of adynovate in chinese participants with severe Hemophilia A.
    Protection of trial subjects
    Each participant signed an informed consent form (ICF) before participating in the study. For participants <18 years old, participants gave assent and their parents/legally authorized representative signed the ICF accordingly.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    27 Mar 2023
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    No
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    China: 37
    Worldwide total number of subjects
    37
    EEA total number of subjects
    0
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    0
    Infants and toddlers (28 days-23 months)
    0
    Children (2-11 years)
    0
    Adolescents (12-17 years)
    10
    Adults (18-64 years)
    27
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

    Close Top of page
    Recruitment
    Recruitment details
    Participants took part in the study at various investigative sites in China from 27 March 2023 to 05 September 2024.

    Pre-assignment
    Screening details
    Participants with a diagnosis of severe hemophilia A were enrolled in this study to receive Adynovate (45 [±5] international units per kilogram [IU/kg]), infusion, intravenously (IV).

    Period 1
    Period 1 title
    Overall Study (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Not applicable
    Blinding used
    Not blinded

    Arms
    Arm title
    Adynovate
    Arm description
    Participants received prophylactic treatment with Adynovate (45 [±5] IU/kg), infusion, IV, twice weekly, for at least 50 EDs or approximately 28 weeks.
    Arm type
    Experimental

    Investigational medicinal product name
    Adynovate
    Investigational medicinal product code
    TAK-660
    Other name
    Pharmaceutical forms
    Concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Adynovate 45±5 IU/kg, twice-weekly, for at least 50 exposure days (EDs), or approximately 28 weeks.

    Number of subjects in period 1
    Adynovate
    Started
    37
    Completed
    34
    Not completed
    3
         Consent withdrawn by subject
    2
         Reason Not Specified
    1

    Baseline characteristics

    Close Top of page
    Baseline characteristics reporting groups
    Reporting group title
    Adynovate
    Reporting group description
    Participants received prophylactic treatment with Adynovate (45 [±5] IU/kg), infusion, IV, twice weekly, for at least 50 EDs or approximately 28 weeks.

    Reporting group values
    Adynovate Total
    Number of subjects
    37 37
    Age categorical
    Units: Subjects
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    24.1 ( 8.15 ) -
    Gender categorical
    Units: Subjects
        Female
    0 0
        Male
    37 37
    Ethnicity (NIH/OMB)
    Units: Subjects
        Hispanic or Latino
    0 0
        Not Hispanic or Latino
    37 37
        Unknown or Not Reported
    0 0
    Race (NIH/OMB)
    Units: Subjects
        American Indian or Alaska Native
    0 0
        Asian
    37 37
        Native Hawaiian or Other Pacific Islander
    0 0
        Black or African American
    0 0
        White
    0 0
        More than one race
    0 0
        Unknown or Not Reported
    0 0

    End points

    Close Top of page
    End points reporting groups
    Reporting group title
    Adynovate
    Reporting group description
    Participants received prophylactic treatment with Adynovate (45 [±5] IU/kg), infusion, IV, twice weekly, for at least 50 EDs or approximately 28 weeks.

    Subject analysis set title
    Adynovate
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants received prophylactic treatment with Adynovate (45 [±5] IU/kg), infusion, IV, twice weekly, for at least 50 EDs, or approximately 28 weeks.

    Primary: Total Annualized Bleeding Rates (ABR)

    Close Top of page
    End point title
    Total Annualized Bleeding Rates (ABR) [1]
    End point description
    Total ABR was defined as the number of treated and non-treated bleeding episodes (BEs) that occurred during the treatment period, calculated as, ABR= number of unique bleeds during treatment period/(length of treatment period [days]/365.25). Total ABR for all BEs, spontaneous or traumatic, recorded in the participant's electronic diary and/or recorded in the physician/nurse/study site notes were reported. The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Primary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    Notes
    [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: Only descriptive analysis was planned for this endpoint.
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: bleeds per year
        arithmetic mean (standard deviation)
    4.1 ( 13.61 )
    No statistical analyses for this end point

    Secondary: ABR Based on Bleeding Site

    Close Top of page
    End point title
    ABR Based on Bleeding Site
    End point description
    ABR= number of unique bleeds during treatment period/(length of treatment period [days]/365.25). ABR for BEs based on bleeding site: joint or non-joint, recorded in the participant's electronic diary and/or recorded in the physician/nurse/study site notes were reported. The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: bleeds per year
    arithmetic mean (standard deviation)
        Bleeding Site: Joint
    2.7 ( 8.35 )
        Bleeding Site: Non-Joint
    1.4 ( 5.48 )
    No statistical analyses for this end point

    Secondary: Number of Adynovate Infusions per Week During the Prophylactic Treatment Period

    Close Top of page
    End point title
    Number of Adynovate Infusions per Week During the Prophylactic Treatment Period
    End point description
    The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: infusions per week
        arithmetic mean (standard deviation)
    2.003 ( 0.0563 )
    No statistical analyses for this end point

    Secondary: ABR Based on Bleeding Cause

    Close Top of page
    End point title
    ABR Based on Bleeding Cause
    End point description
    ABR= number of unique bleeds during treatment period/(length of treatment period [days]/365.25). ABR for BEs based on bleeding cause: spontaneous/unknown or injury, recorded in the participant's electronic diary and/or recorded in the physician/nurse/study site notes were reported. The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: bleeds per year
    arithmetic mean (standard deviation)
        Bleeding Cause: Spontaneous/Unknown
    3.8 ( 13.65 )
        Bleeding Cause: Injury
    0.3 ( 0.99 )
    No statistical analyses for this end point

    Secondary: Number of Adynovate Infusions per Month During the Prophylactic Treatment Period

    Close Top of page
    End point title
    Number of Adynovate Infusions per Month During the Prophylactic Treatment Period
    End point description
    The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: infusions per month
        arithmetic mean (standard deviation)
    8.711 ( 0.2447 )
    No statistical analyses for this end point

    Secondary: Weight-adjusted Consumption of Adynovate per Week During the Prophylactic Treatment Period

    Close Top of page
    End point title
    Weight-adjusted Consumption of Adynovate per Week During the Prophylactic Treatment Period
    End point description
    Weight-adjusted consumption (IU/kg) was derived as the total units infused (IU) divided by the last available body weight (kg) prior to the infusion. The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: IU/kg
        arithmetic mean (standard deviation)
    89.637 ( 3.6807 )
    No statistical analyses for this end point

    Secondary: Weight-adjusted Consumption of Adynovate per Month During the Prophylactic Treatment Period

    Close Top of page
    End point title
    Weight-adjusted Consumption of Adynovate per Month During the Prophylactic Treatment Period
    End point description
    Weight-adjusted consumption (IU/kg) was derived as the total units infused (IU) divided by the last available body weight (kg) prior to the infusion. The SAS included all participants treated with at least 1 Adynovate dose. Subjects analysed is the number of participants with treated bleeding episodes.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: IU/kg
        arithmetic mean (standard deviation)
    389.760 ( 16.0045 )
    No statistical analyses for this end point

    Secondary: Number of Bleeding Events in Each Category of Hemostatic Efficacy Rating at Resolution of Breakthrough Bleeding Episode

    Close Top of page
    End point title
    Number of Bleeding Events in Each Category of Hemostatic Efficacy Rating at Resolution of Breakthrough Bleeding Episode
    End point description
    Hemostatic efficacy for treatment of BEs was rated on 4-point Likert scale as: excellent=full relief of pain & cessation of objective signs of bleeding after single infusion, no additional infusion is required for control of bleeding & administration of further infusion to maintain hemostasis would not affect scoring; good=definite pain relief and/or improvement in signs of bleeding after single infusion, possibly requires more than 2 infusions for complete resolution & administration of further infusion to maintain hemostasis would not affect scoring; fair=probable and/or slight relief of pain & slight improvement in signs of bleeding after single infusion, required multiple infusions for complete resolution; none=no improvement of signs/symptoms/conditions worsen. Missing indicates number of unique bleeding episodes without any overall hemostatic efficacy rating at resolution of breakthrough bleeding episode. FAS included all participants treated with at least 1 Adynovate dose.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: bleeding events
    number (not applicable)
        Excellent
    7
        Good
    14
        Fair
    4
        None
    0
        Missing
    6
    No statistical analyses for this end point

    Secondary: Average Time Interval Between Bleeding Episodes (BEs)

    Close Top of page
    End point title
    Average Time Interval Between Bleeding Episodes (BEs)
    End point description
    Average time interval between bleeding episodes (days)= Length of treatment period (days)/ Number of unique bleeds during treatment period. Average time interval was computed for participants with more than 1 unique BEs. The FAS included all participants who were assigned to receive a treatment regimen of Adynovate. Subjects analysed is the number of participants with more than 1 unique BEs.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    9
    Units: days
        arithmetic mean (standard deviation)
    61.869 ( 30.9437 )
    No statistical analyses for this end point

    Secondary: Percentage of Participants With Zero Bleeding Episodes During the Study

    Close Top of page
    End point title
    Percentage of Participants With Zero Bleeding Episodes During the Study
    End point description
    Percentages were rounded off to the nearest single decimal place. The FAS included all participants who were assigned to receive a treatment regimen of Adynovate.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: percentage of participants
        number (not applicable)
    54.1
    No statistical analyses for this end point

    Secondary: Weight-adjusted Consumption of Adynovate per Bleeding Episode

    Close Top of page
    End point title
    Weight-adjusted Consumption of Adynovate per Bleeding Episode
    End point description
    Weight-adjusted consumption (IU/kg) was derived as the total units infused (IU) divided by the last available body weight (kg) prior to the infusion. The SAS included all participants treated with at least 1 Adynovate dose. Subjects analysed is the number of participants with treated bleeding episodes.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    14
    Units: IU/kg
        arithmetic mean (standard deviation)
    77.766 ( 81.7538 )
    No statistical analyses for this end point

    Secondary: Number of Minor Surgeries With Hemostatic Efficacy Based on Global Hemostatic Efficacy Assessment (GHEA) Score as Assessed by the Operating Surgeon/Investigator

    Close Top of page
    End point title
    Number of Minor Surgeries With Hemostatic Efficacy Based on Global Hemostatic Efficacy Assessment (GHEA) Score as Assessed by the Operating Surgeon/Investigator
    End point description
    GHEA score consisted of 3 individual rating scales: (1) Intra-operative Efficacy Assessment Scale, (2) Post-operative Efficacy Assessment Scale, and (3) Peri-operative Efficacy Assessment Scale. Each rating scale is based on 4 points scale ranging from: 3 (Excellent), 2 (Good), 1 (Fair), and 0 (None). The scores of 3 individual ratings scales were added together to form a GHEA score. Total score ranged from 0 to 9, where scores evaluate as: excellent (7 to 9), good (5 to 7), fair (3 to 4), and none (0 to 2). For a GHEA score of 7 to be rated “excellent” no individual assessment scores could be less than (<) 2 and at least 1 assessment score had to be equal to (=) 3; otherwise a score of 7 was rated “good”. The FAS included all participants treated with at least 1 Adynovate dose. Only participants with hemostatic efficacy were to be assessed for this endpoint.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    0 [2]
    Units: score on a scale
        number (not applicable)
    Notes
    [2] - Subjects analysed is zero as no participant reported blood loss for minor surgeries.
    No statistical analyses for this end point

    Secondary: Volume of Actual and Predicted Intra-operative and Post-operative Blood Loss After the Surgery as Assessed by the Operating Surgeon/Investigator

    Close Top of page
    End point title
    Volume of Actual and Predicted Intra-operative and Post-operative Blood Loss After the Surgery as Assessed by the Operating Surgeon/Investigator
    End point description
    The FAS included all participants treated with at least 1 Adynovate dose. Only subjects with blood loss for minor surgeries were to be assessed for this endpoint.
    End point type
    Secondary
    End point timeframe
    Post-operative: Day 1 and at discharge Week 26
    End point values
    Adynovate
    Number of subjects analysed
    0 [3]
    Units: Liters
        arithmetic mean (standard deviation)
    ( )
    Notes
    [3] - Subjects analysed is zero as no participant reported blood loss for minor surgeries.
    No statistical analyses for this end point

    Secondary: Number of Adynovate Infusions per Bleeding Episode

    Close Top of page
    End point title
    Number of Adynovate Infusions per Bleeding Episode
    End point description
    The Safety Analysis Set (SAS) included all subjects treated with at least 1 Adynovate dose. Subjects analysed is the number of participants with treated bleeding episodes.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    14
    Units: infusions/bleeding episode
        arithmetic mean (standard deviation)
    2.839 ( 2.9337 )
    No statistical analyses for this end point

    Secondary: Number of Participants who Required Perioperative Transfusion of Blood, Red blood Cells, Platelets, and Other Blood Products

    Close Top of page
    End point title
    Number of Participants who Required Perioperative Transfusion of Blood, Red blood Cells, Platelets, and Other Blood Products
    End point description
    The FAS included all participants treated with at least 1 Adynovate dose.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: participants
    0
    No statistical analyses for this end point

    Secondary: FVIII Activity Level in Plasma Assessed by a 1-stage Clotting Assay

    Close Top of page
    End point title
    FVIII Activity Level in Plasma Assessed by a 1-stage Clotting Assay
    End point description
    As per planned analysis, data for this outcome measure was collected and reported for initial pharmacokinetic (PK) assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit. FVIII activity level reported was corrected for pre-infusion measurement. The Pharmacokinetic Full Analysis Set (PK FAS) included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple time-points up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: International units per deciliter(IU/dL)
    arithmetic mean (standard deviation)
        Initial PK Assessment: Pre-Infusion
    0.00 ( 0.000 )
        Initial PK Assessment:Post-Infusion:30 Mins(n=14)
    112.02 ( 26.739 )
        Initial PK Assessment:Post-Infusion:1 Hour(n=14)
    106.67 ( 22.066 )
        Initial PK Assessment:Post-Infusion:2 Hours
    94.64 ( 32.185 )
        Initial PK Assessment:Post-Infusion:4 Hours
    87.67 ( 21.186 )
        Initial PK Assessment:Post-Infusion:8 Hours
    71.87 ( 16.929 )
        Initial PK Assessment:Post-Infusion:12 Hours
    58.96 ( 14.378 )
        Initial PK Assessment:Post-Infusion:24 Hours
    37.24 ( 11.573 )
        Initial PK Assessment:Post-Infusion:48 Hours
    14.60 ( 7.616 )
        Initial PK Assessment:Post-Infusion:72 Hours
    5.17 ( 3.876 )
        Initial PK Assessment:Post-Infusion:96 Hours
    2.06 ( 2.040 )
        Second PK Assessment:Pre-Infusion(n=14)
    0.00 ( 0.000 )
        Second PK Assessment:Post-Infusion:30 Mins(n=13)
    109.75 ( 18.192 )
        Second PK Assessment:Post-Infusion:1 Hour(n=14)
    109.51 ( 20.705 )
        Second PK Assessment:Post-Infusion:2 Hours(n=14)
    98.82 ( 20.196 )
        Second PK Assessment:Post-Infusion:4 Hours(n=13)
    86.41 ( 9.587 )
        Second PK Assessment:Post-Infusion:8 Hours(n=14)
    73.57 ( 15.750 )
        Second PK Assessment:Post-Infusion:12 Hours(n=13)
    62.31 ( 14.766 )
        Second PK Assessment:Post-Infusion:24 Hours(n=14)
    40.53 ( 11.918 )
        Second PK Assessment:Post-Infusion:48 Hours(n=14)
    16.13 ( 8.275 )
        Second PK Assessment:Post-Infusion:72 Hours(n=14)
    7.20 ( 4.754 )
        Second PK Assessment:Post-Infusion:96 Hours(n=13)
    3.25 ( 2.811 )
    No statistical analyses for this end point

    Secondary: Number of Participants With Confirmed Inhibitory Antibodies to Factor VIII (FVIII), Binding Immunoglobulin G (IgG) and Immunoglobulin M (IgM) Antibodies to Adynovate and Chinese Hamster Ovary (CHO) Protein

    Close Top of page
    End point title
    Number of Participants With Confirmed Inhibitory Antibodies to Factor VIII (FVIII), Binding Immunoglobulin G (IgG) and Immunoglobulin M (IgM) Antibodies to Adynovate and Chinese Hamster Ovary (CHO) Protein
    End point description
    The SAS included all participants treated with at least 1 Adynovate dose.
    End point type
    Secondary
    End point timeframe
    Up to approximately 28 weeks
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: participants
        Inhibitory Antibodies to FVIII
    0
        Binding IgG Antibodies to Adynovate (n=31)
    0
        Binding IgM Antibodies to Adynovate (n=31)
    0
        Binding Antibodies to CHO Proteins
    0
    No statistical analyses for this end point

    Secondary: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Treatment-emergent Adverse Events (Serious TEAEs)

    Close Top of page
    End point title
    Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Treatment-emergent Adverse Events (Serious TEAEs)
    End point description
    Adverse event(AE): any untoward medical occurrence in participant administered pharmaceutical product; untoward medical occurrence does not necessarily have causal relationship with this treatment. AE can therefore be any unfavorable & unintended sign (including an abnormal laboratory finding), symptom/disease temporally associated with use of medicinal (investigational) product whether or not it is related to medicinal product. TEAE: any AE either reported for first time or worsening of pre-existing event after first dose of study drug & within 30 days of last administration of study drug. Serious TEAEs: any untoward medical occurrence that: results in death, is life-threatening, requires inpatient hospitalization/prolongation of existing hospitalization, results in persistent or significant disability/incapacity, leads to congenital anomaly/birth defect in offspring of participant or is medically important. The SAS included all participants treated with at least 1 Adynovate dose.
    End point type
    Secondary
    End point timeframe
    Up to approximately 28 weeks
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: participants
        TEAEs
    16
        Serious TEAEs
    1
    No statistical analyses for this end point

    Secondary: Daily Intra-Operative and Post-Operative Weight-Adjusted Consumption Dose of Adynovate

    Close Top of page
    End point title
    Daily Intra-Operative and Post-Operative Weight-Adjusted Consumption Dose of Adynovate
    End point description
    The FAS included all participants treated with at least 1 Adynovate dose. Only participants who were administered Adynovate for minor surgeries were to be assessed for this endpoint.
    End point type
    Secondary
    End point timeframe
    Baseline through study completion or ≥50 EDs whichever occurred last (approximately 28 weeks)
    End point values
    Adynovate
    Number of subjects analysed
    0 [4]
    Units: participants
    Notes
    [4] - Subjects analysed is zero as no participants were administered Adynovate for minor surgeries.
    No statistical analyses for this end point

    Secondary: Incremental Recovery Over Time During Adynovate Prophylactic Treatment

    Close Top of page
    End point title
    Incremental Recovery Over Time During Adynovate Prophylactic Treatment
    End point description
    Incremental recovery (IR) was calculated as IR (international units per deciliter)/(international units per kilogram [(IU/dL)/(IU/kg)] = [PostFVIII (IU/dL)-PreFVIII (IU/dL)]/Weight Adjusted Dose (IU/kg). The SAS included all participants treated with at least 1 Adynovate dose. Subjects analysed is the number of participants with data available for analyses. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Baseline, Week 6, and Study Completion (approximately Week 28)
    End point values
    Adynovate
    Number of subjects analysed
    34
    Units: (IU/dL)/(IU/kg)
    arithmetic mean (standard deviation)
        Baseline
    2.4777 ( 0.67876 )
        Week 6 (n=31)
    2.5147 ( 0.64379 )
        Study Completion (n=31)
    2.4083 ( 0.50714 )
    No statistical analyses for this end point

    Secondary: Pre-dose Level of FVIII Activity in Plasma

    Close Top of page
    End point title
    Pre-dose Level of FVIII Activity in Plasma
    End point description
    The SAS included all participants treated with at least 1 Adynovate dose. Subjects analysed is the number of participants with data available for analyses. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Baseline, Weeks 2, 6, 12, and Study Completion (approximately Week 28): Within 30 minutes pre-infusion
    End point values
    Adynovate
    Number of subjects analysed
    36
    Units: IU/dL
    arithmetic mean (standard deviation)
        Baseline
    0.06 ( 0.232 )
        Week 2 (n=29)
    3.28 ( 4.999 )
        Week 6 (n=31)
    2.91 ( 2.802 )
        Week 12 (n=31)
    3.61 ( 3.994 )
        Study Completion
    7.06 ( 16.365 )
    No statistical analyses for this end point

    Secondary: Pre-dose Level of FVIII Antigen in Plasma

    Close Top of page
    End point title
    Pre-dose Level of FVIII Antigen in Plasma
    End point description
    IU/mL stands for international units per milliliter. The SAS included all participants treated with at least 1 Adynovate dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Baseline, Weeks 2, 6, 12, and Study Completion (approximately Week 28): Within 30 minutes pre-infusion
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: IU/mL
    arithmetic mean (standard deviation)
        Baseline
    0.0276 ( 0.06577 )
        Week 2 (n=36)
    0.0782 ( 0.07888 )
        Week 6 (n=35)
    0.0689 ( 0.04518 )
        Week 12 (n=34)
    0.0649 ( 0.04286 )
        Week 20 (n=14)
    0.0856 ( 0.05404 )
        Study Completion
    0.1011 ( 0.11326 )
    No statistical analyses for this end point

    Secondary: Pre-dose Level of Von Willebrand Factor (VWF) Antigen in Plasma

    Close Top of page
    End point title
    Pre-dose Level of Von Willebrand Factor (VWF) Antigen in Plasma
    End point description
    The SAS included all participants treated with at least 1 Adynovate dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Baseline, Weeks 2, 6, 12, and Study Completion (approximately Week 28): Within 30 minutes pre-infusion
    End point values
    Adynovate
    Number of subjects analysed
    37
    Units: percent (%)
    arithmetic mean (standard deviation)
        Baseline
    83.69 ( 35.967 )
        Week 2 (n=36)
    84.46 ( 30.811 )
        Week 6 (n=35)
    84.99 ( 34.216 )
        Week 12 (n=34)
    86.57 ( 30.024 )
        Week 20 (n=14)
    91.26 ( 34.240 )
        Study Completion
    90.26 ( 31.714 )
    No statistical analyses for this end point

    Secondary: Clearance (CL) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate

    Close Top of page
    End point title
    Clearance (CL) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate
    End point description
    Clearance reported was calculated based on pre-infusion corrected concentration data. As per planned analysis, data for this outcome measure was collected and reported for initial PK assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit. [(dL/h)/kg] stands for deciliters per hour per kilogram. The PK FAS included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple timepoints up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: (dL/h)/kg
    arithmetic mean (standard deviation)
        Initial PK Assessment
    0.0206 ( 0.00629 )
        Second PK Assessment (n=14)
    0.0192 ( 0.00594 )
    No statistical analyses for this end point

    Secondary: Volume of Distribution for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate

    Close Top of page
    End point title
    Volume of Distribution for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate
    End point description
    Volume of distribution was calculated based on pre-infusion corrected concentration data. As per planned analysis, data for this outcome measure was collected and reported for initial PK assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit.'n' denotes the number of participants with data available for analysis at the specified time-point. The PK FAS included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple timepoints up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: deciliters per kilogram (dL/kg)
    arithmetic mean (standard deviation)
        Initial PK Assessment
    0.458 ( 0.107 )
        Second PK Assessment (n=14)
    0.480 ( 0.0953 )
    No statistical analyses for this end point

    Secondary: Area Under the Concentration Versus Time Curve From 0 to 96 Hours (AUC0-96) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate

    Close Top of page
    End point title
    Area Under the Concentration Versus Time Curve From 0 to 96 Hours (AUC0-96) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate
    End point description
    AUC0-96 was calculated based on pre-infusion corrected concentration data. As per planned analysis, data for this outcome measure was collected and reported for initial PK assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit. h*IU/dL stands for hour*international units per deciliter. The PK FAS included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple timepoints up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: h*IU/dL
    arithmetic mean (standard deviation)
        Initial PK Assessment
    2348 ( 737 )
        Second PK Assessment (n=14)
    2582 ( 736 )
    No statistical analyses for this end point

    Secondary: Maximum Concentration (Cmax) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate

    Close Top of page
    End point title
    Maximum Concentration (Cmax) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate
    End point description
    Cmax was calculated based on pre-infusion corrected concentration data. As per planned analysis, data for this outcome measure was collected and reported for initial PK assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit. The PK FAS included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple timepoints up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: IU/dL
    arithmetic mean (standard deviation)
        Initial PK Assessment
    113 ( 26.1 )
        Second PK Assessment (n=14)
    115 ( 20.0 )
    No statistical analyses for this end point

    Secondary: Pre-dose Concentration (Cpredose) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate

    Close Top of page
    End point title
    Pre-dose Concentration (Cpredose) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate
    End point description
    Cpredose was calculated based on pre-infusion corrected concentration data. As per planned analysis, data for this outcome measure was collected and reported for initial PK assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit. The PK FAS included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple timepoints up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: IU/dL
    arithmetic mean (standard deviation)
        Initial PK Assessment
    0 ( 0 )
        Second PK Assessment (n=14)
    0 ( 0 )
    No statistical analyses for this end point

    Secondary: Terminal Phase Elimination Half-life (T1/2) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate

    Close Top of page
    End point title
    Terminal Phase Elimination Half-life (T1/2) for FVIII Activity Following an Initial Single Dose and Steady-state Dose of Adynovate
    End point description
    T1/2 was calculated based on pre-infusion corrected concentration data. As per planned analysis, data for this outcome measure was collected and reported for initial PK assessment and second PK assessment. The initial PK assessment was performed prior to the baseline visit at Day -1. The second PK assessment was performed during the Week 20 visit. The PK FAS included all participants who consented to PK evaluation, were treated with at least 1 Adynovate dose, and had at least 1 evaluable PK concentration post dose. 'n' denotes the number of participants with data available for analysis at the specified time-point.
    End point type
    Secondary
    End point timeframe
    Day -1 and Week 20: pre-infusion, post-infusion at multiple timepoints up to 96 hours
    End point values
    Adynovate
    Number of subjects analysed
    15
    Units: hour
    arithmetic mean (standard deviation)
        Initial PK Assessment
    16.0 ( 3.27 )
        Second PK Assessment (n=14)
    18.5 ( 4.61 )
    No statistical analyses for this end point

    Adverse events

    Close Top of page
    Adverse events information
    Timeframe for reporting adverse events
    Up to approximately 28 weeks
    Adverse event reporting additional description
    The SAS included all participants treated with at least 1 Adynovate dose.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    27.0
    Reporting groups
    Reporting group title
    Adynovate
    Reporting group description
    Participants received prophylactic treatment with Adynovate (45 [±5] IU/kg), infusion, IV, twice weekly, for at least 50 EDs or approximately 28 weeks.

    Serious adverse events
    Adynovate
    Total subjects affected by serious adverse events
         subjects affected / exposed
    1 / 37 (2.70%)
         number of deaths (all causes)
    0
         number of deaths resulting from adverse events
    0
    Hepatobiliary disorders
    Liver injury
         subjects affected / exposed
    1 / 37 (2.70%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Adynovate
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    8 / 37 (21.62%)
    Investigations
    Alanine aminotransferase increased
         subjects affected / exposed
    2 / 37 (5.41%)
         occurrences all number
    2
    Aspartate aminotransferase increased
         subjects affected / exposed
    2 / 37 (5.41%)
         occurrences all number
    2
    Gastrointestinal disorders
    Diarrhoea
         subjects affected / exposed
    3 / 37 (8.11%)
         occurrences all number
    3
    Musculoskeletal and connective tissue disorders
    Myalgia
         subjects affected / exposed
    2 / 37 (5.41%)
         occurrences all number
    2
    Arthralgia
         subjects affected / exposed
    3 / 37 (8.11%)
         occurrences all number
    7
    Infections and infestations
    Upper respiratory tract infection
         subjects affected / exposed
    2 / 37 (5.41%)
         occurrences all number
    2
    Metabolism and nutrition disorders
    Hyperlipidaemia
         subjects affected / exposed
    2 / 37 (5.41%)
         occurrences all number
    2
    Hypertriglyceridaemia
         subjects affected / exposed
    2 / 37 (5.41%)
         occurrences all number
    2

    More information

    Close Top of page

    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? No

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    None reported
    For support, Contact us.
    The status and protocol content of GB trials is no longer updated since 1 January 2021. For the UK, as of 31 January 2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI. Legal notice
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

    European Medicines Agency © 1995-Fri May 09 15:47:29 CEST 2025 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    EMA HMA