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    Summary
    EudraCT Number:2019-001023-13
    Sponsor's Protocol Code Number:Ox_Psych_PAXD
    National Competent Authority:UK - MHRA
    Clinical Trial Type:EEA CTA
    Trial Status:GB - no longer in EU/EEA
    Date on which this record was first entered in the EudraCT database:2019-10-31
    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 ConcernedUK - MHRA
    A.2EudraCT number2019-001023-13
    A.3Full title of the trial
    PAX-D: Randomised placebo-controlled trial evaluating the efficacy and mechanism of pramipexole as add-on treatment for people with treatment resistant depression
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    PAX-D: Randomised placebo-controlled trial evaluating the efficacy and mechanism of pramipexole as add-on treatment for people with treatment resistant depression
    A.3.2Name or abbreviated title of the trial where available
    PAX-D
    A.4.1Sponsor's protocol code numberOx_Psych_PAXD
    A.5.1ISRCTN (International Standard Randomised Controlled Trial) NumberISRCTN84666271
    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 of Oxford / Clinical Trials and Research Governance
    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 supportNational Institute for Health Research (NIHR)
    B.4.2CountryUnited Kingdom
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationUniversity of Oxford
    B.5.2Functional name of contact pointJames Griffiths
    B.5.3 Address:
    B.5.3.1Street AddressDepartment of Psychiatry, Warneford Hospital
    B.5.3.2Town/ cityOxford
    B.5.3.3Post codeOX3 7JX
    B.5.3.4CountryUnited Kingdom
    B.5.4Telephone number01865618160
    B.5.6E-mailjames.griffiths@psych.ox.ac.uk
    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 Pramipexole 0.18mg Tablets
    D.2.1.1.2Name of the Marketing Authorisation holderMilpharm Limited
    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 namePramipexole 0.18mg Tablets
    D.3.4Pharmaceutical form Tablet
    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 INNPramipexole dihydrochloride monohydrate
    D.3.9.1CAS number 104632-26-0
    D.3.9.4EV Substance CodeAS2
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number.25
    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 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 Pramipexol Aurobindo 0.18 mg
    D.2.1.1.2Name of the Marketing Authorisation holderAurobindo Pharma GmbH
    D.2.1.2Country which granted the Marketing AuthorisationGermany
    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 namePramipexol Aurobindo 0.18 mg
    D.3.4Pharmaceutical form Tablet
    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 INNPramipexole dihydrochloride monohydrate
    D.3.9.1CAS number 104632-26-0
    D.3.9.4EV Substance CodeAS3
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number.25
    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 No
    D.IMP: 3
    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 Pramipexole Aurobindo 0.18 mg
    D.2.1.1.2Name of the Marketing Authorisation holderAurobindo Pharma (Malta) Limited
    D.2.1.2Country which granted the Marketing AuthorisationMalta
    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 namePramipexole Aurobindo 0.18 mg
    D.3.4Pharmaceutical form Tablet
    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 INNPramipexole dihydrochloride monohydrate
    D.3.9.1CAS number 104632-26-0
    D.3.9.4EV Substance CodeAS4
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number.25
    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 No
    D.IMP: 4
    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 Pramipexole 0.7mg Tablets
    D.2.1.1.2Name of the Marketing Authorisation holderMilpharm Limited
    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 namePramipexole 0.7mg Tablets
    D.3.4Pharmaceutical form Tablet
    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 INNPramipexole dihydrochloride monohydrate
    D.3.9.1CAS number 104632-26-0
    D.3.9.4EV Substance CodeAS5
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number.1
    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 No
    D.IMP: 5
    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 Pramipexol Aurobindo 0.7 mg
    D.2.1.1.2Name of the Marketing Authorisation holderAurobindo Pharma GmbH
    D.2.1.2Country which granted the Marketing AuthorisationGermany
    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 namePramipexol Aurobindo 0.7 mg
    D.3.4Pharmaceutical form Tablet
    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 INNPramipexole dihydrochloride monohydrate
    D.3.9.1CAS number 104632-26-0
    D.3.9.4EV Substance CodeAS6
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number1
    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 No
    D.IMP: 6
    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 Pramipexole Aurobindo 0.7 mg
    D.2.1.1.2Name of the Marketing Authorisation holderAurobindo Pharma (Malta) Limited
    D.2.1.2Country which granted the Marketing AuthorisationMalta
    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 namePramipexole Aurobindo 0.7 mg
    D.3.4Pharmaceutical form Tablet
    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 INNPramipexole dihydrochloride monohydrate
    D.3.9.1CAS number 104632-26-0
    D.3.9.4EV Substance CodeAS7
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number1
    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 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 placeboTablet
    D.8.4Route of administration of the placeboOral use
    D.8 Placebo: 2
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboTablet
    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
    Treatment resistant depression
    E.1.1.1Medical condition in easily understood language
    Clinical depression that has not responded to two antidepressant treatments
    E.1.1.2Therapeutic area Psychiatry and Psychology [F] - Mental Disorders [F03]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 21.1
    E.1.2Level PT
    E.1.2Classification code 10057840
    E.1.2Term Major depression
    E.1.2System Organ Class 10037175 - Psychiatric disorders
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    The principal objective of PAX-D to test the hypothesis that for people with depression that has not responded to at least 2 courses of conventional antidepressant medication, pramipexole will produce a greater improvement in depressive symptoms than placebo after twelve weeks of treatment.
    E.2.2Secondary objectives of the trial
    Secondary objectives are to test additional hypotheses related to the clinical effects and mechanism of action of pramipexole and the extent to which changes in motivation predict clinical response:

    Clinical effects:
    • that the dropout rate due to intolerance in the pramipexole arm will be less than 20% after twelve weeks of treatment;
    • that the rate of significant behavioural disturbance will be less than 5% after twelve weeks of treatment;
    • that pramipexole will improve symptoms of depression, anhedonia and anxiety as well as functional outcomes, to a greater degree than placebo, across the 48 weeks of the trial.

    Hypothesis related to mechanism:
    • that, after two weeks treatment, pramipexole will increase sensitivity to reward relative to placebo.

    Hypotheses related to predictive early measurements:
    • that the extent to which pramipexole increases reward sensitivity at two weeks will mediate therapeutic outcome to pramipexole at twelve weeks;
    • that greater impairment in rewar
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Inclusion criteria for entry to run-in phase:

    - Willing and able to give informed consent to participate in the trial
    - Age 18 years or over
    - Clinical diagnosis of DSM-V major depression** based on the affective disorder sections of the Mini International Neuropsychiatric Interview (MINI). N.b. comorbid anxiety disorder is not an exclusion criterion
    - Quick Inventory of Depressive Symptomatology self-report version (QIDS-SR16) score >10 (moderate, severe or very severe depression)
    - Currently taking antidepressant medication
    - A lack of response to at least 2 antidepressants at therapeutic doses (based on Maudsley Prescribing Guidelines and/or British National Formulary) in the current episode
    - An indication for change in treatment
    - Willing to continue an antidepressant treatment
    - Women of child-bearing potential (WOCBP) only – a negative urine pregnancy test result

    Additional inclusion criteria for entry to the randomised phase:

    - Verbal consent to randomisation
    - QIDS-SR16 score >10
    - On a stable dose of an antidepressant for at least 4 weeks
    - Women of child-bearing potential only - a negative pregnancy test result
    E.4Principal exclusion criteria
    Exclusion criteria for entry to run-in phase:

    - Clinical diagnosis of current or previous psychosis, bipolar disorder or Parkinson’s Disease
    - Currently taking an antipsychotic medication.
    - Clinically significant current or previous impulse control difficulties
    - Serious suicide or homicide risk
    - Current treatment with any medication known to interfere with pramipexole metabolism including cimetidine, memantine and methyldopa.
    - Contraindications to pramipexole including history of or current treatment for eye disease (excluding near or long-sightedness), significant, symptomatic cardiovascular or renal disease or significant, symptomatic orthostatic hypotension
    - Previous course of pramipexole (>2 weeks)
    - Untreated or unstable medical condition which, in the judgement of the investigator, could interfere with the safety of receiving pramipexole or ability to complete the trial
    - Female and pregnant, lactating or planning pregnancy
    - Woman of child-bearing potential not willing to use effective contraception


    Exclusion criteria for entry to randomised phase:

    - Insufficient completion of questionnaires scheduled during the run-in phase (defined as at least 75% completion)
    - Has not responded to Research Assistant contact during the run-in phase
    - eGFR (from screening blood test) < 50 mL/min/1.73m2
    - Psychotherapy started in past 4 weeks or planned to start within next 12 weeks
    E.5 End points
    E.5.1Primary end point(s)
    Improvement (change from baseline) of depressive symptoms measured on the Quick Inventory of Depressive Symptomatology, self-report version (QIDS-SR16))at 12 weeks.
    E.5.1.1Timepoint(s) of evaluation of this end point
    QIDS-SR16 completed at baseline and at at Week 12.
    E.5.2Secondary end point(s)
    • Change in reward sensitivity between baseline, week 2 and 12 weeks.

    Relationship between changes in reward sensitivity and therapeutic response explored by comparing:
    • change in reward sensitivity between baseline and week 2 with both change in depressive symptoms (measured on the Quick Inventory of Depressive Symptomatology - QIDS-SR16) and change in anhedonia (measured on the Snaith- Hamilton Pleasure Scale - SHAPS) between baseline and week 12.
    • change scores in the reward sensitivity task at 2 weeks with change in the QID-SR16 at 12 weeks.
    • baseline scores on the reward sensitivity task with the change in QIDS-SR16 at 12 weeks.

    Effect of pramipexole on therapeutic outcomes assessed by comparing:
    • baseline scores on the SHAPS with change in the QID-SR16 at 12 weeks.;
    • changes in QIDS-SR16 scores collected weekly across 48 weeks of the trial;
    • rates of esponse and remission of depressive symptoms at 12 weeks (defined as ≥50% reduction in baseline QIDS-SR16 score and a QIDS-SR16 score of ≤5 respectively);
    • change in scores for anhedonia (SHAPS), anxiety (Generalised Anxiety Disorder Scale - GAD-7) and clinician ratings
    of depression (QIDS-C) between baseline and week 12;
    • change in functional outcomes (Work and Social Adjustment Scale – WSAS) between baseline and week 48.
    Impact of pramipexole treatment in quality of life and well-being:
    • change in measures of quality of life (EuroQol - EQ-5D-5, ICEpop CAPability measure for Adults - ICECAP-A and
    OxCAP-MH - Oxford CAPabilities questionnaire-Mental Health over 48 weeks;
    • cost-effectiveness of pramipexole ((Health Economics Questionnaire – HEQ) over 48 weeks.

    Acceptability of treatment with pramipexole
    • post-trial qualitative interviews with selected participants and investigators.
    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 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 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 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
    The end of trial is set as the date of resolution of the last data query.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years3
    E.8.9.1In the Member State concerned months4
    E.8.9.1In the Member State concerned days31
    E.8.9.2In all countries concerned by the trial years3
    E.8.9.2In all countries concerned by the trial months4
    E.8.9.2In all countries concerned by the trial days31
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1Number of subjects for this age range: 0
    F.1.1.1In Utero No
    F.1.1.1.1Number of subjects for this age range: 0
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.2.1Number of subjects for this age range: 0
    F.1.1.3Newborns (0-27 days) No
    F.1.1.3.1Number of subjects for this age range: 0
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.4.1Number of subjects for this age range: 0
    F.1.1.5Children (2-11years) No
    F.1.1.5.1Number of subjects for this age range: 0
    F.1.1.6Adolescents (12-17 years) No
    F.1.1.6.1Number of subjects for this age range: 0
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 180
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 24
    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 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 state204
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 204
    F.4.2.2In the whole clinical trial 204
    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)
    Pramipexole is not licensed for use in treatment resistant depression, although it is prescribed off-label in some NHS Trusts under the supervision of experienced psychiatrists, including Oxford Health NHS Foundation Trust where the pilot study will be conducted.

    It is expected that discussion of ongoing treatment would follow the end of the randomised treatment period, if necessary including unblinding individual participants to confirm if they received active treatment.
    G. Investigator Networks to be involved in the Trial
    G.4 Investigator Network to be involved in the Trial: 1
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2019-11-11
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2019-11-01
    P. End of Trial
    P.End of Trial StatusGB - no longer in EU/EEA
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