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    Summary
    EudraCT Number:2021-004307-40
    Sponsor's Protocol Code Number:ATN-106
    National Competent Authority:Hungary - National Institute of Pharmacy
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2021-11-23
    Trial results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedHungary - National Institute of Pharmacy
    A.2EudraCT number2021-004307-40
    A.3Full title of the trial
    A multicentre, prospective, open-label, uncontrolled Phase 3 study to assess the efficacy, safety and pharmacokinetics of Atenativ in patients with congenital antithrombin deficiency undergoing surgery or delivery
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    Efficacy of Atenativ in Patients With Congenital Antithrombin Deficiency Undergoing Surgery or Delivery
    A.4.1Sponsor's protocol code numberATN-106
    A.5.2US NCT (ClinicalTrials.gov registry) numberNCT04918173
    A.5.4Other Identifiers
    Name:INDNumber:15908
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorOctapharma AG
    B.1.3.4CountrySwitzerland
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportOctapharma AG
    B.4.2CountrySwitzerland
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationOctapharma AG
    B.5.2Functional name of contact pointCristina Solomon
    B.5.3 Address:
    B.5.3.1Street AddressSeidenstrasse 2
    B.5.3.2Town/ cityLachen
    B.5.3.3Post codeCH-8853
    B.5.3.4CountrySwitzerland
    B.5.4Telephone number+4155451 21 89
    B.5.5Fax number+4155451 21 80
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation Yes
    D.2.1.1.1Trade name Atenativ
    D.2.1.1.2Name of the Marketing Authorisation holderOctapharma AG
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameAtenativ
    D.3.2Product code N/A
    D.3.4Pharmaceutical form Powder and solvent for solution for infusion
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPIntravenous use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNN/A
    D.3.9.3Other descriptive nameHUMAN PLASMA DERIVED ANTITHROMBIN
    D.3.9.4EV Substance CodeSUB32322
    D.3.10 Strength
    D.3.10.1Concentration unit IU international unit(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number1000
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin No
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) Yes
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product No
    D.3.11.3.3Tissue Engineered Product No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product Yes
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Congenital antithrombin deficiency
    E.1.1.1Medical condition in easily understood language
    Inherited antithrombin deficiency
    E.1.1.2Therapeutic area Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 23.0
    E.1.2Level LLT
    E.1.2Classification code 10083881
    E.1.2Term Antithrombin deficiency
    E.1.2System Organ Class 100000004850
    E.1.3Condition being studied is a rare disease Yes
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    The primary objective of this study is to assess the incidence of the composite of thrombotic events (TEs) and thromboembolic events (TEEs) in patients with congenital antithrombin deficiency under cover of Atenativ for surgical procedures or parturition
    E.2.2Secondary objectives of the trial
    The secondary objectives of this study are to:
    • Assess the single-dose PK of Atenativ in patients with congenital antithrombin deficiency
    • Assess coagulation parameters in patients with congenital antithrombin deficiency undergoing surgical procedures or parturition
    • Assess the safety and tolerability of Atenativ in patients with congenital antithrombin deficiency
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Patients who meet all of the following criteria are eligible for the study:

    1. Adult male or female patients ≥18 and ≤80 years of age

    2. Documented congenital antithrombin deficiency, defined by plasma level of antithrombin ≤60% [16]

    3. Personal or family history of TEs or TEEs

    4. For the Treatment Phase: either a) non-pregnant surgical patients scheduled for elective surgical procedure(s) known to be associated with a high risk for occurrence of TEs or TEEs, or b) pregnant patients of at least 27 weeks gestational age who are scheduled for caesarean section or delivery

    5. For female patients of childbearing potential entering the PK Phase who are not known to be pregnant, and for female surgical patients of childbearing potential entering the Treatment Phase for any procedure other than caesarean section or delivery, a negative urine pregnancy test at screening and at baseline

    6. Patient has provided informed consent
    E.4Principal exclusion criteria
    Patients who meet any of the following criteria at the time of screening are not eligible for the study:

    1. Requires emergency surgery or emergency caesarean section

    2. Has undergone surgery within the last 6 weeks

    3. History or suspicion of another hereditary thrombophilic disorder other than antithrombin deficiency (e.g., activated protein C [APC] resistance/Factor V Leiden, Protein S or C deficiency, prothrombin gene mutation [G20210A], or acquired [lupus anticoagulant] thrombophilic disorder)

    4. Malignancies, renal failure, or severe liver disease (aspartate aminotransferase [ASAT] >5 times the upper limit of normal)

    5. Body mass index >40 kg/m2

    6. Known hypersensitivity or allergic reaction to antithrombin or any of the excipients in Atenativ

    7. History of anaphylactic reaction(s) to blood or blood components

    8. Refusal to receive transfusion of blood-derived products

    9. Administration of any antithrombin concentrate or antithrombin-containing blood product other than the study medication within 14 days of either of the two phases of the study

    10. Prior diagnosis with heparin-induced thrombocytopenia

    11. TE or TEE within the last 6 months

    12. Female patients who are nursing

    13. Have participated in another investigational study within the last 30 days
    E.5 End points
    E.5.1Primary end point(s)
    The primary endpoint is the incidence of the composite of TEs and TEEs in patients with congenital antithrombin deficiency under cover of Atenativ for surgical procedures or parturition to 30 days after treatment initiation
    E.5.1.1Timepoint(s) of evaluation of this end point
    30 days after treatment initiation
    E.5.2Secondary end point(s)
    Secondary endpoints include the following PK parameters following a single dose of Atenativ:
    • Area under the curve (AUCnorm(0–∞))
    • Maximum plasma concentration (Cmax)
    • Half-life (t1/2)
    • Mean residence time (MRT)
    • Clearance (CL)
    • Incremental IVR (peak concentration of antithrombin observed within the first hour after infusion)
    • Volume of distribution at steady state (Vss)
    • Time to reach maximum plasma concentration (Tmax)

    Efficacy
    • Antithrombin activity
    • Coagulation parameters (activated partial thromboplastin time [aPTT], prothrombin time [PT], international normalised ratio [INR] and fibrinogen)

    Safety
    • AEs and serious AEs (SAEs)
    • Length of hospital stay
    • Vital signs (including systolic and diastolic blood pressure, pulse rate, body temperature, respiration rate, results of physical examination)
    • Standard haematological and clinical chemical safety variables, as well as thrombogenicity markers including D-dimer, prothrombin fragment 1 + 2 (F1+2), and thrombin-antithrombin complex (TAT).
    E.5.2.1Timepoint(s) of evaluation of this end point
    occurrence of TEs and TEEs
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy No
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic Yes
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others No
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) No
    E.7.3Therapeutic confirmatory (Phase III) Yes
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled No
    E.8.1.1Randomised No
    E.8.1.2Open Yes
    E.8.1.3Single blind No
    E.8.1.4Double blind No
    E.8.1.5Parallel group No
    E.8.1.6Cross over No
    E.8.1.7Other No
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo No
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial1
    E.8.3 The trial involves single site in the Member State concerned No
    E.8.4 The trial involves multiple sites in the Member State concerned No
    E.8.4.1Number of sites anticipated in Member State concerned2
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA8
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Austria
    Belgium
    Canada
    France
    Germany
    Hungary
    Italy
    Spain
    United Kingdom
    United States
    E.8.7Trial has a data monitoring committee No
    E.8.8 Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial
    LVLS
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years
    E.8.9.1In the Member State concerned months
    E.8.9.1In the Member State concerned days
    E.8.9.2In all countries concerned by the trial years3
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) No
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 30
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 4
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations Yes
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception Yes
    F.3.3.3Pregnant women Yes
    F.3.3.4Nursing women Yes
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state4
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 22
    F.4.2.2In the whole clinical trial 34
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    None
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2022-01-31
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2022-01-20
    P. End of Trial
    P.End of Trial StatusOngoing
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