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    Summary
    EudraCT Number:2022-002560-73
    Sponsor's Protocol Code Number:SWITCH_ON
    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:2022-07-14
    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 number2022-002560-73
    A.3Full title of the trial
    SWITCH ON: Analysing the immunogenicity of additional booster vaccinations in healthcare workers.
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    SWITCH ON: Analysing the immunogenicity of additional booster vaccinations in healthcare workers.
    A.3.2Name or abbreviated title of the trial where available
    SWITCH ON
    A.4.1Sponsor's protocol code numberSWITCH_ON
    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 SponsorErasmus MC
    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 supportErasmus MC
    B.4.2CountryNetherlands
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationErasmus MC
    B.5.2Functional name of contact pointHugo van der Kuy
    B.5.3 Address:
    B.5.3.1Street Addressdr. Molewaterplein 40
    B.5.3.2Town/ cityRotterdam
    B.5.3.3Post code3015 GD
    B.5.3.4CountryNetherlands
    B.5.4Telephone number0031628586702
    B.5.6E-mailh.vanderkuy@erasmusmc.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 Comirnaty concentraat voor dispersie voor injectie
    D.2.1.1.2Name of the Marketing Authorisation holderPfizer & BioNTech
    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.3.4Pharmaceutical form Dispersion for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPIntramuscular use
    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) Yes
    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 Yes
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.IMP: 2
    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 COVID-19 vaccine Moderna, dispersie voor injectie
    D.2.1.1.2Name of the Marketing Authorisation holderModerna Biotech Spain, S.L.
    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.3.4Pharmaceutical form Dispersion for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPIntramuscular use
    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) Yes
    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 Yes
    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
    To study the necessity to boost healthcare workers (which arre representative for the dutch population) with a COVID vaccin by measuring the immunogenicity at 7 days and 28 days..
    E.1.1.1Medical condition in easily understood language
    To study the necessity to boost healthcare workers (which arre representative for the dutch population) with a COVID vaccin by measuring the immunogenicity at 7 days and 28 days..
    E.1.1.2Therapeutic area Body processes [G] - Immune system processes [G12]
    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
    The main aim of this proposal is to determine whether it is necessary to boost the healthy population in the autumn. The primary objective is to determine the fold change in antibody level at day of boost and 28 days after an additional COVID-19 booster vaccination in the direct boost group, comparing Janssen with mRNA-primed HCW.

    To specifically answer the main aim, we have defined two questions with the following outcome parameters:

    1. Is there an increase in antibody levels between day of boost and 28 days after boosting HCW that were initially primed with either the Janssen or an mRNA-based vaccine?

    2. Does booster vaccination lead to a rapid secondary recall respons, indicative of immunological memory?
    E.2.2Secondary objectives of the trial
    1. What is the difference in booster immunogenicity comparing a direct boost with a postponed boost?
    Outcome: Level of antibodies and T-cell responses 7 and 28 days post boost in DB versus PPB group.

    2. What is the breadth of the immune responses after booster vaccination?
    Outcome: PRNT against relevant variants in a random selection of study participants.

    3. What is the predictive value of immune responses on day 7 post boost?
    Outcome: Relationship between antibodies and T-cell responses on day 7 and 28 post boost.

    4. What is the difference in reactogenicity 7 days after boost comparing the Janssen and mRNA primed HCW?
    Outcome: Adverse events (AE) first 7 days after boost between Janssen and mRNA primed HCW.

    5. What is the prevalence of breakthough infections during the study period?
    Outcome: Database of breakthrough infections in included participants based on positive PCR, self-reported positive lateral flow test, or detection of N-specific antibodies.
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Participants will be recruited from both the SWITCH-trial (Janssen primed HCWs)(1-3) and the Erasmus MC HCW-study (mRNA primed HCWs)(4, 5), as these participants are well characterized and documented in earlier responses to COVID-19 vaccinations. Participants may participate regardless of a previous SARS-CoV-2 infection. By randomizing over the different groups, we assume that the experienced infections are equally distributed over the groups. To assess whether this was truly the case, N-specific antibodies will be retrospectively measured in the pre boost sample from all participants.
    E.4Principal exclusion criteria
    1. HCW younger than 18
    2. HCW that are pregnant or have a wish to become pregnant within 6 months
    3. All regular contra-indications of the vaccines will be applied
    E.5 End points
    E.5.1Primary end point(s)
    1.Level of antibodies and T-cell responses
    2. PRNT against relevant variants in a random selection of study participants.
    3. Adverse events (AE)
    E.5.1.1Timepoint(s) of evaluation of this end point
    Blood will be drawn at baseline and postboost at day 7, 28 and 84.
    E.5.2Secondary end point(s)
    NA
    E.5.2.1Timepoint(s) of evaluation of this end point
    NA
    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 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) No
    E.7.4Therapeutic use (Phase IV) Yes
    E.8 Design of the trial
    E.8.1Controlled Yes
    E.8.1.1Randomised Yes
    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 Yes
    E.8.2.3.1Comparator description
    The comparator is a group that receives at another timepoint
    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 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 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
    12 months after the vaccination (last visit)
    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 months
    E.8.9.1In the Member State concerned days
    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: 400
    F.1.3Elderly (>=65 years) No
    F.1.3.1Number of subjects for this age range: 0
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers Yes
    F.3.2Patients No
    F.3.3Specific vulnerable populations Yes
    F.3.3.1Women of childbearing potential not using contraception For clinical trials recorded in the database before the 10th March 2011 this question read: "Women of childbearing potential" and did not include the words "not using contraception". An answer of yes could have included women of child bearing potential whether or not they would be using contraception. The answer should therefore be understood in that context. This trial was recorded in the database on 2022-07-14. Yes
    F.3.3.2Women of child-bearing potential using contraception Yes
    F.3.3.3Pregnant women No
    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 state400
    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 Decision2022-07-14
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2022-09-01
    P. End of Trial
    P.End of Trial StatusOngoing
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