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    The EU Clinical Trials Register currently displays   43845   clinical trials with a EudraCT protocol, of which   7282   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:2009-018181-36
    Sponsor's Protocol Code Number:09117
    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:2010-03-18
    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 number2009-018181-36
    A.3Full title of the trial
    Nitrous Oxide and Functional Magnetic Resonance Imaging to investigate cerebral regional blood flow, cerebral metabolism and neuronal activity.
    A.3.2Name or abbreviated title of the trial where available
    Nitrous Oxide and Functional MRI
    A.4.1Sponsor's protocol code number09117
    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 SponsorUniversity of Nottingham
    B.1.3.4Country
    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 Yes
    D.2.1.1.1Trade name Medical Nitrous Oxide
    D.2.1.1.2Name of the Marketing Authorisation holderBOC Gases
    D.2.1.2Country which granted the Marketing AuthorisationUnited Kingdom
    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 nameNitrous oxide
    D.3.4Pharmaceutical form Inhalation vapour*
    D.3.4.1Specific paediatric formulation Information not present in EudraCT
    D.3.7Routes of administration for this IMPInhalation use
    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 Information not present in EudraCT
    D.3.11.3.2Gene therapy medical product Information not present in EudraCT
    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 No
    D.3.11.8Extractive medicinal product No
    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 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 placeboInhalation gas
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    This is part of a series of studies investigating the potential therapeutic use of low dose nitrous oxide in the treatment of cerebral vasospasm, a condition which occurs following brain injury and stroke. We are looking to see if the increased blood flow to the brain seen with nitrous oxide is caused by an increase in cerebral metabolism. This would need to be excluded if nitrous oxide is to be considered as a potential treatment.
    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
    What is the effect of inhaling low dose nitrous oxide, otherwise known as laughing gas, on blood supply, to different areas of the brain. This can be described as 'changes in regional blood flow'.

    This can be achieved by taking pictures of the brain with a special scan machine which uses a magnet instead of X rays. These pictures will show the blood supply to the various parts of the brain before and during the breathing of laughing gas. Thus the differences between the two images can be studied.
    E.2.2Secondary objectives of the trial
    We will look to see if there are any changes in oxygen and nutrient usage by the brain and changes in brainwaves in response to breathing laughing gas. Oxygen usage indicates metabolism of the brain tissue, ie fuel requirements.
    We will relate this information to to the findings on blood flow to the different areas of the brain.
    We want to establish if there is a link between increased blood flow and fuel requirements or nerve activity(as seen by brainwaves) in the brain.

    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Inclusion criteria:
    Males and Females aged between 18 and 50
    E.4Principal exclusion criteria
    People with history or evidence of a systemic illness or vascular disease
    On prescription medication which may affect cardiovascular system e.g. Beta blockers, Calcium channel antagonists
    Cardiac pacemaker or mechanical heart valve
    Implanted electrical devices e.g. hearing aid, nerve stimulator, cochlear implant, programmable shunt
    Any evidence of neurological disorder including brain surgery, aneurysm clip
    Smokers
    Pregnant* or lactating females
    Metal fragments in your eyes
    Metal clips, pins, plates, implants, coils, screws, shrapnel or similar in your body
    *In females pregnancy will be excluded by an hCG test within 24 hours preceding MRI scan
    E.5 End points
    E.5.1Primary end point(s)
    To quantify the effect of 30% inspired concentration of nitrous oxide on regional CBF (cerebral blood flow) in healthy volunteers.

    Techniques known as Arterial spin labeling (ASL) use magnetic labeling of blood to show in an image the amount of blood perfusing different areas of the brain. Contrast agents are not required for these techniques. This perfusion measurement is completely noninvasive. ASL techniques will measure the quantity of regional perfusion at baseline (room air), 40% oxygen in medical air, and 40% oxygen in medical air with 30% nitrous oxide.
    Blood flowing into the imaging slice exchanges with tissue water, altering the tissue magnetization. A perfusion-weighted image can be generated by the subtraction of an image in which inflowing spins have been labeled from an image in which spin labeling has not been performed. Quantitative perfusion maps can be calculated if other parameters (such as tissue T1 and the efficiency of spin labeling) also are measured.
    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 No
    E.6.5Efficacy No
    E.6.6Pharmacokinetic No
    E.6.7Pharmacodynamic Yes
    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 Information not present in EudraCT
    E.7.1.2Bioequivalence study Information not present in EudraCT
    E.7.1.3Other Information not present in EudraCT
    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 No
    E.8.1.3Single blind No
    E.8.1.4Double blind Yes
    E.8.1.5Parallel group No
    E.8.1.6Cross over Yes
    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
    medical air
    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 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
    last visit of last participant
    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 months6
    E.8.9.1In the Member State concerned days
    E.8.9.2In all countries concerned by the trial years0
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 Information not present in EudraCT
    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) Information not present in EudraCT
    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 No
    F.3.3.1Women of childbearing potential not using contraception Information not present in EudraCT
    F.3.3.2Women of child-bearing potential using contraception Information not present in EudraCT
    F.3.3.3Pregnant women Information not present in EudraCT
    F.3.3.4Nursing women Information not present in EudraCT
    F.3.3.5Emergency situation Information not present in EudraCT
    F.3.3.6Subjects incapable of giving consent personally Information not present in EudraCT
    F.3.3.7Others Information not present in EudraCT
    F.4 Planned number of subjects to be included
    F.4.1In the member state25
    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)
    No follow up of the participants will be carried out.
    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 Decision2010-02-02
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2010-02-23
    P. End of Trial
    P.End of Trial StatusCompleted
    P.Date of the global end of the trial2010-08-11
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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
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

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