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    The EU Clinical Trials Register currently displays   43851   clinical trials with a EudraCT protocol, of which   7283   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).

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    Summary
    EudraCT Number:2004-002262-37
    Sponsor's Protocol Code Number:ATP1
    National Competent Authority:UK - MHRA
    Clinical Trial Type:EEA CTA
    Trial Status:Completed
    Date on which this record was first entered in the EudraCT database:2005-02-15
    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 ConcernedUK - MHRA
    A.2EudraCT number2004-002262-37
    A.3Full title of the trial
    Adenosine testing in the diagnosis of unexplained syncope: A pilot study
    A.3.2Name or abbreviated title of the trial where available
    Adenosine testing in the diagnosis of unexplained syncope
    A.4.1Sponsor's protocol code numberATP1
    A.7Trial is part of a Paediatric Investigation Plan Information not present in EudraCT
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorNewcastle Hospitals Trust
    B.1.3.4CountryUnited Kingdom
    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 support
    B.4.2Country
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisation
    B.5.2Functional name of contact point
    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 Information not present in EudraCT
    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 nameAdenosine
    D.3.2Product code Adenosine
    D.3.4Pharmaceutical form Injection*
    D.3.4.1Specific paediatric formulation Information not present in EudraCT
    D.3.7Routes of administration for this IMPIntravenous bolus use (Noncurrent)
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNAdenosine
    D.3.9.1CAS number 58-61-7
    D.3.9.2Current sponsor codeNA
    D.3.9.3Other descriptive nameNA
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number5mg/ml
    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) Information not present in EudraCT
    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 Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy Information not present in EudraCT
    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 Information not present in EudraCT
    D.3.11.8Extractive medicinal product Information not present in EudraCT
    D.3.11.9Recombinant medicinal product Information not present in EudraCT
    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 Information not present in EudraCT
    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
    Syncope
    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
    Adenosine administered intravenously slows heart rate, and over the last decade, the drug has been used in many centres in the diagnosis of unexplained syncope (blackouts). However, there is no clear consensus on which underlying disorder is being uncovered. Various researchers propose heart conducting tissue disease (sick sinus syndrome [SSS] and [AVB]) and neurally mediated syncope (carotid sinus syndrome [CSS] and vasovagal syncope [VVS - an exaggerated version of the common faint]) as the conditions diagnosed by adenosine. We propose the first ever study to tackle these issues comprehensively and systematically. The principal research objective will be to compare the heart rate response to adenosine with the underlying diagnosis in patients with SSS, AVB, CSS and VVS and healthy controls.
    E.2.2Secondary objectives of the trial
    We also hope to define an abnormal response to adenosine (duration of heart block and/or asystole discriminating an abnormal response from a normal one) and further evaluate the tolerability of the procedure.
    E.2.3Trial contains a sub-study Information not present in EudraCT
    E.3Principal inclusion criteria
    Consecutive patients over 18 years with dual chamber permanent pacemakers implanted for SSS, AVB and CSS at Freeman Hospital during the first 8 months of the study, and if additional numbers are needed, over the last 5 years identified retrospectively, will be asked to participate, as will consecutive patients with tilt-diagnosed VVS. In addition:
    ·SSS and CSS patients must be in sinus rhythm (SR), or if suffering paroxysmal atrial fibrillation, in sinus rhythm (SR) for >50% of the time (from pacemaker diagnostics).
    ·AVB patients must have underlying SR with normal AV conduction for >90% of the time.
    E.4Principal exclusion criteria
    Inability to give informed consent, severe coronary disease (known coronary stenosis >70%, NYHA heart failure or angina symptoms Class III or IV), known severe cerebrovascular disease, myocardial infarction within 3 months, long corrected QT interval, uncorrected accessory pathway, history of asthma, COPD, pregnancy or lactation, dipyridamole or digoxin use, hypertrophic cardiomyopathy, cardiac transplantation, or known significant internal carotid artery stenosis (>50%). In addition:
    ·Patients with SSS: Persistent atrial fibrillation (AF); evidence of high degree AV block; complete AV block present for more than 10% of the time. If there is uncertainty regarding this, the lower rate of the device will be reduced and AV delay extended to assess underlying rhythm and AV conduction, with reassessment 1 month later.
    ·Patients with AVB: Evidence of sinus node disease as assessed by the amount of atrial pacing at pacemaker check. If uncertainty, the lower rate will be reduced and pacemaker rechecked at one month.
    ·Patients with CSS: Persistent AF or high degree AV block.
    E.5 End points
    E.5.1Primary end point(s)
    The primary outcome measures will be the sensitivity and specificity of the adenosine test in diagnosing SSS, AVB, CSS and VVS based on the current European Society of Cardiology guidelines, namely >6 seconds asystole or >10 seconds high degree AVB.
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis Yes
    E.6.2Prophylaxis Information not present in EudraCT
    E.6.3Therapy Information not present in EudraCT
    E.6.4Safety Information not present in EudraCT
    E.6.5Efficacy Information not present in EudraCT
    E.6.6Pharmacokinetic Information not present in EudraCT
    E.6.7Pharmacodynamic Information not present in EudraCT
    E.6.8Bioequivalence Information not present in EudraCT
    E.6.9Dose response Information not present in EudraCT
    E.6.10Pharmacogenetic Information not present in EudraCT
    E.6.11Pharmacogenomic Information not present in EudraCT
    E.6.12Pharmacoeconomic Information not present in EudraCT
    E.6.13Others Information not present in EudraCT
    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 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 Yes
    E.8.2.3.1Comparator description
    Patients with AV block, sinus node disease, carotid sinus syndrome, vasovagal syncope, controls.
    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 Information not present in EudraCT
    E.8.7Trial has a data monitoring committee Information not present in EudraCT
    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
    The end of the trial will occur when all participants have undergone the relevant investigations, including adenosine testing.
    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 days
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero Information not present in EudraCT
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) Information not present in EudraCT
    F.1.1.3Newborns (0-27 days) Information not present in EudraCT
    F.1.1.4Infants and toddlers (28 days-23 months) Information not present in EudraCT
    F.1.1.5Children (2-11years) Information not present in EudraCT
    F.1.1.6Adolescents (12-17 years) Information not present in EudraCT
    F.1.2Adults (18-64 years) Yes
    F.1.3Elderly (>=65 years) Yes
    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 Yes
    F.3.3Specific vulnerable populations Information not present in EudraCT
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception Information not present in EudraCT
    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 state240
    F.4.2 For a multinational trial
    F.4.2.2In the whole clinical trial 240
    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 Decision2004-10-27
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2004-10-13
    P. End of Trial
    P.End of Trial StatusCompleted
    P.Date of the global end of the trial2005-10-31
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    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
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