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    Summary
    EudraCT Number:2015-001098-42
    Sponsor's Protocol Code Number:ALX0681-C301
    National Competent Authority:Netherlands - Competent Authority
    Clinical Trial Type:EEA CTA
    Trial Status:Completed
    Date on which this record was first entered in the EudraCT database:2015-09-09
    Trial results View 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 ConcernedNetherlands - Competent Authority
    A.2EudraCT number2015-001098-42
    A.3Full title of the trial
    A Phase III double-blind, randomized, parallel group, multicenter placebo-controlled trial to study the efficacy and safety of caplacizumab in patients with acquired thrombotic thrombocytopenic purpura.
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A Phase III trial with caplacizumab in patients with acquired thrombotic thrombocytopenic purpura.
    A.4.1Sponsor's protocol code numberALX0681-C301
    A.5.2US NCT (ClinicalTrials.gov registry) numberNCT02553317
    A.7Trial is part of a Paediatric Investigation Plan Yes
    A.8EMA Decision number of Paediatric Investigation PlanP/060/2012
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorAblynx NV
    B.1.3.4CountryBelgium
    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 supportAblynx NV
    B.4.2CountryBelgium
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationAblynx NV
    B.5.2Functional name of contact pointAblynx Clinical Operations
    B.5.3 Address:
    B.5.3.1Street AddressTechnologiepark 21
    B.5.3.2Town/ cityZwijnaarde
    B.5.3.3Post code9052
    B.5.3.4CountryBelgium
    B.5.4Telephone number32(0)9 262 00 00
    B.5.5Fax number32(0)9 262 00 35
    B.5.6E-mailclinicaltrials@ablynx.com
    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 No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community Yes
    D.2.5.1Orphan drug designation numberEU/3/09/629
    D.3 Description of the IMP
    D.3.1Product nameCaplacizumab
    D.3.2Product code ALX-0081
    D.3.4Pharmaceutical form Powder and solvent for solution for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPSubcutaneous use
    Intravenous bolus use (Noncurrent)
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNCaplacizumab
    D.3.9.1CAS number 915810-67-2
    D.3.9.2Current sponsor codeALX-0081
    D.3.9.3Other descriptive nameALX-0081
    D.3.9.4EV Substance CodeSUB91244
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number11.1
    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 Yes
    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 No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product Yes
    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
    D.8 Placebo: 1
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboPowder and solvent for solution for injection
    D.8.4Route of administration of the placeboSubcutaneous use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Acquired Thrombotic thrombocytopenic purpura
    E.1.1.1Medical condition in easily understood language
    TTP is a rare condition in which the blood becomes “sticky” and forms clots within the blood vessels in different parts of the body.
    E.1.1.2Therapeutic area Diseases [C] - Blood and lymphatic diseases [C15]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 19.0
    E.1.2Level PT
    E.1.2Classification code 10043648
    E.1.2Term Thrombotic thrombocytopenic purpura
    E.1.2System Organ Class 10005329 - Blood and lymphatic system disorders
    E.1.3Condition being studied is a rare disease Yes
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To evaluate efficacy of caplacizumab in more rapidly restoring normal platelet counts as measure of prevention of further microvascular thrombosis.
    E.2.2Secondary objectives of the trial
    - to evaluate the effect of study drug on a composite endpoint consisting of TTP-related mortality, recurrence of TTP and major thromboembolic events during study drug treatment
    - to evaluate the effect of study drug on prevention of recurrence of TTP over the entire study period
    - to evaluate the effect of study drug on refractoriness to treatment
    - to evaluate the effect of study drug on biomarkers of organ damage: lactate dehydrogenase (LDH), cardiac troponin I (cTnI), and serum creatinine
    - to evaluate the effect of study drug on PE parameters (days of PE and volume), days in intensive care unit (ICU), days in hospital
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    1.Adult male or female ≥ 18 years of age at the time of signing the informed consent form (ICF)
    2.Clinical diagnosis of acquired TTP (initial or recurrent), which includes thrombocytopenia and microscopic evidence of red blood cell fragmentation (e.g. schistocytes)
    3.Requires initiation of daily PE treatment and has received PE treatment prior to randomization .
    E.4Principal exclusion criteria
    1.Platelet count ≥100×109/L
    2.Serum creatinine level >200 µmol/L in case platelet count is > 30×109/L
    3.Known other causes of thrombocytopenia
    4.Congenital TTP (known at the time of study entry)
    5.Pregnancy or breast-feeding.
    6.Subjects who were previously enrolled in a clinical study with
    caplacizumab and received caplacizumab or for whom the assigned
    treatment arm is unknown.
    E.5 End points
    E.5.1Primary end point(s)
    Time to platelet count response defined as initial platelet count ≥ 150×10E9/L with subsequent stop of daily PE within 5 days.
    E.5.1.1Timepoint(s) of evaluation of this end point
    daily PE period, for maximum of 6 months
    E.5.2Secondary end point(s)
    1. Proportion of subjects with TTP-related death, a recurrence of TTP, or at least one treatment-emergent major thromboembolic event during the study drug treatment period (including extensions).
    2. Proportion of subjects with a recurrence of TTP in the overall study period (including 4-week FU period).
    3. Proportion of subjects with refractory TTP, defined as absence of platelet count doubling after 4 days of standard treatment, and LDH >ULN
    4. Time to normalization of all 3 of the following organ damage marker levels:
    - Time to LDH ≤ 1 x upper limit of normal (ULN), and
    - Time to cTnI ≤ 1 x ULN, and
    - Time to serum creatinine ≤ 1 x ULN
    E.5.2.1Timepoint(s) of evaluation of this end point
    1. During the treatment period (ie daily PE period + post-daily PE treatment period)
    2. During the overall study period (including the FU period)
    3. Will be evaluated during the daily PE period
    4. During the overall study period (including the FU period)
    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 Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic No
    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 Yes
    E.8.1.1Randomised Yes
    E.8.1.2Open No
    E.8.1.3Single blind No
    E.8.1.4Double blind Yes
    E.8.1.5Parallel group Yes
    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 Yes
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial2
    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 Yes
    E.8.4.1Number of sites anticipated in Member State concerned4
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA47
    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
    Australia
    Austria
    Belgium
    Canada
    Czech Republic
    France
    Germany
    Hungary
    Israel
    Italy
    Netherlands
    New Zealand
    Spain
    Switzerland
    Turkey
    United Kingdom
    United States
    E.8.7Trial has a data monitoring committee Yes
    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 years2
    E.8.9.1In the Member State concerned months0
    E.8.9.1In the Member State concerned days0
    E.8.9.2In all countries concerned by the trial years2
    E.8.9.2In all countries concerned by the trial months0
    E.8.9.2In all countries concerned by the trial days0
    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: 89
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 3
    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 No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation Yes
    F.3.3.6Subjects incapable of giving consent personally Yes
    F.3.3.6.1Details of subjects incapable of giving consent
    Adults with a clinical diagnosis of acquired TTP who require initiation of daily PE treatment.It is possible that patients were brought to the hospital unconscious and therefore unable to sign or give their consent.
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state5
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 60
    F.4.2.2In the whole clinical trial 92
    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)
    Standard of care
    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 Decision2015-09-09
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2016-04-11
    P. End of Trial
    P.End of Trial StatusCompleted
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