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    Summary
    EudraCT Number:2019-004906-88
    Sponsor's Protocol Code Number:NL69395.042.19
    National Competent Authority:Netherlands - Competent Authority
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2020-03-24
    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 ConcernedNetherlands - Competent Authority
    A.2EudraCT number2019-004906-88
    A.3Full title of the trial
    Placebo-controlled double-blind randomized controlled trial investigating vitamin K supplementation on vascular calcification propensity in vitamin K deficient renal transplant recipients
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    Vitamin K supplementation after renal transplantation
    A.3.2Name or abbreviated title of the trial where available
    NTx-vitK
    A.4.1Sponsor's protocol code numberNL69395.042.19
    A.5.4Other Identifiers
    Name:Dutch Trial RegisterNumber:NL7687
    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 SponsorUniversity Medical Center Groningen
    B.1.3.4CountryNetherlands
    B.3.1 and B.3.2Status of the sponsorNon-Commercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportUniversity Medical Center Groningen
    B.4.2CountryNetherlands
    B.4.1Name of organisation providing supportDutch Kidney Foundation
    B.4.2CountryNetherlands
    B.4.1Name of organisation providing supportVitals Voedingssupplementen BV
    B.4.2CountryNetherlands
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationUniversity Medical Center Groningen
    B.5.2Functional name of contact pointdr. C.A. te Velde - Keyzer
    B.5.3 Address:
    B.5.3.1Street AddressHanzeplein 1
    B.5.3.2Town/ cityGroningen
    B.5.3.3Post code9713 GZ
    B.5.3.4CountryNetherlands
    B.5.4Telephone number+310625646520
    B.5.6E-mailc.a.keyzer@umcg.nl
    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 Vitamin K2 MK-7 180 micrograms capsules are available as food supplements on Dutch market.
    D.2.1.1.2Name of the Marketing Authorisation holderVItals Voedingssupplementen BV
    D.2.1.2Country which granted the Marketing AuthorisationNetherlands
    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 nameVitamin K2 MK-7
    D.3.4Pharmaceutical form Capsule
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNVitamin K2 MK-7
    D.3.9.3Other descriptive nameVITAMIN K
    D.3.9.4EV Substance CodeSUB16472MIG
    D.3.10 Strength
    D.3.10.1Concentration unit µCi/µg microcurie(s)/microgram
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number360
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    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 No
    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 Yes
    D.3.11.13.1Other medicinal product typefood supplement
    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 placeboCapsule
    D.8.4Route of administration of the placeboOral use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Vitamin K deficiency is highly prevalent among renal transplant recipients, promotes vascular calcification, and is associated with an increased risk of cardiovascular disease. Supplementation of vitamin K among renal transplant recipients is postulated to be associated with improvement of vascular calcification.
    Study population: Outpatients (age ≥ 18 years), renal transplant recipients with vitamin K deficiency.
    E.1.1.1Medical condition in easily understood language
    Effect of vitamin K supplementation on vascular calcification among renal transplant recipients with a vitamin K deficiency.
    E.1.1.2Therapeutic area Diseases [C] - Cardiovascular Diseases [C14]
    MedDRA Classification
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    Investigate the effect of vitamin K2 supplementation on serum calcification propensity in vitamin K deficient RTRs.
    E.2.2Secondary objectives of the trial
    Investigate the effect of vitamin K2 supplementation on vitamin K status and vascular stiffness in vitamin K deficient RTRs.
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    In order to be eligible to participate in this study, a subject must meet all of the following criteria:
    1. Age ≥18 years
    2. Male and female renal transplant recipients
    3. Participant of TransplantLines
    4. Vitamin K deficient; dp-ucMGP >500 pmol/L
    5. eGFR > 20 ml/min/1.73m2
    6. Signed informed consent
    E.4Principal exclusion criteria
    A potential subject who meets any of the following criteria will be excluded from participation in this study:
    1. Treatment with vitamin K antagonists or direct oral anticoagulants (DOAC)
    2. Atrial fibrillation or other heart rhythm disorders causing an unreliable PWV measurement
    3. Known coagulopathy
    4. Active malignancy; exception treated basal cell or squamous cell carcinoma
    5. Current or planned pregnancy or lactation
    6. Known intestinal malabsorption
    E.5 End points
    E.5.1Primary end point(s)
    The primary endpoint is the change from baseline in serum calcification propensity at 12 weeks following treatment vitamin K or placebo supplementation (V2-V1).

    Quantification of calcification propensity, i.e., the tendency to develop future calcifications, in serum: This test quantifies the calcification propensity by challenging the patient’s serum with supersaturated calcium and phosphate solutions. This leads to formation of particles mainly containing fetuin-A and albumin, called primary calciprotein particles (CPPs). These primary CPPs spontaneously undergo topological rearrangement and transform into secondary CPPs. The timing of the transformation depends on the individual composition of serum, and more specifically on the balance between calcification promoters and calcification-inhibiting factors.
    E.5.1.1Timepoint(s) of evaluation of this end point
    V1 (baseline)
    V2 (end of study)
    E.5.2Secondary end point(s)
    Secondary endpoints include change from baseline in parameters of vitamin K status (e.g., dp-ucMGP) and vascular stiffness (i.e., pulse wave velocity) at 12 weeks. (V2-V1).
    E.5.2.1Timepoint(s) of evaluation of this end point
    V1 (baseline)
    V2 (end of study)
    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 No
    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 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 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 Yes
    E.8.4 The trial involves multiple sites in the Member State concerned No
    E.8.5The trial involves multiple Member States No
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA No
    E.8.6.2Trial being conducted completely outside of the EEA No
    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 years1
    E.8.9.1In the Member State concerned months0
    E.8.9.1In the Member State concerned 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: 30
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 10
    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 No
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception No
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    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 state40
    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. After completing the study, participants can continue treatment with vitamin K2 as it is available in drugstores in the Netherlands.
    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 Decision2020-03-24
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2020-04-24
    P. End of Trial
    P.End of Trial StatusOngoing
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