Flag of the European Union EU Clinical Trials Register Help

Clinical trials

The European Union Clinical Trials Register allows you to search for protocol and results information on:
  • interventional clinical trials that are conducted in the European Union (EU) and the European Economic Area (EEA);
  • clinical trials conducted outside the EU / EEA that are linked to European paediatric-medicine development.
  • Learn   more about the EU Clinical Trials Register   including the source of the information and the legal basis.


    The EU Clinical Trials Register currently displays   42891   clinical trials with a EudraCT protocol, of which   7066   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).


    Phase 1 trials conducted solely in adults and that are not part of an agreed PIP are not public in the EU CTR (refer to European Guidance 2008/C 168/02   Art. 3 par. 2 and   Commission Guideline 2012/C 302/03,   Art. 5) .

    Clinical Trials marked as "Trial now transitioned" were transitioned to the Clinical Trial Regulation 536/2014 and can be further followed in the Clinical Trial Information System  
     
    Examples: Cancer AND drug name. Pneumonia AND sponsor name.
    How to search [pdf]
    Search Tips: Under advanced search you can use filters for Country, Age Group, Gender, Trial Phase, Trial Status, Date Range, Rare Diseases and Orphan Designation. For these items you should use the filters and not add them to your search terms in the text field.
    Advanced Search: Search tools
     

    < Back to search results

    Print Download

    Summary
    EudraCT Number:2020-004805-30
    Sponsor's Protocol Code Number:CLN-PXT3003-06
    National Competent Authority:France - ANSM
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2022-01-19
    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 ConcernedFrance - ANSM
    A.2EudraCT number2020-004805-30
    A.3Full title of the trial
    A Multi-Center, Randomized, Double-Blind, Placebo-Controlled Phase III Study to Assess the Efficacy, Safety, and Tolerability of PXT3003 in Charcot-Marie-Tooth type 1A (CMT1A)
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    Phase 3 trial of PXT3003 in Charcot-Marie-Tooth (CMT) Type 1A patients
    A.4.1Sponsor's protocol code numberCLN-PXT3003-06
    A.5.4Other Identifiers
    Name:IND numberNumber:122505
    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 SponsorPharnext SA
    B.1.3.4CountryFrance
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportPharnext SA
    B.4.2CountryFrance
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationPharnext SA
    B.5.2Functional name of contact pointClinical Operations
    B.5.3 Address:
    B.5.3.1Street Address46 rue Saint Lazare
    B.5.3.2Town/ cityParis
    B.5.3.3Post code7009
    B.5.3.4CountryFrance
    B.5.4Telephone number+19178853598
    B.5.5Fax number+33141092231
    B.5.6E-mailmisrael@pharnext.com
    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 No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community Yes
    D.2.5.1Orphan drug designation numberEU/3/14/1260
    D.3 Description of the IMP
    D.3.1Product nameNA
    D.3.2Product code PXT3003
    D.3.4Pharmaceutical form Oral solution in sachet
    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 INNBACLOFEN
    D.3.9.1CAS number 1134-47-0
    D.3.9.3Other descriptive name(RS)-baclofen
    D.3.9.4EV Substance CodeSUB05667MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number0.6
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNNALTREXONE
    D.3.9.1CAS number 16590-41-3
    D.3.9.3Other descriptive namenaltrexone hydrochloride
    D.3.9.4EV Substance CodeSUB09143MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number0.07
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNSorbitol
    D.3.9.1CAS number 50-70-4
    D.3.9.3Other descriptive nameD-SORBITOL
    D.3.9.4EV Substance CodeSUB20837
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number21
    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 placeboOral solution in sachet
    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
    Charcot Marie Tooth Type 1A
    E.1.1.1Medical condition in easily understood language
    Hereditary Motor and Sensory Neuropathy
    E.1.1.2Therapeutic area Diseases [C] - Nervous System Diseases [C10]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.0
    E.1.2Level LLT
    E.1.2Classification code 10008414
    E.1.2Term Charcot-Marie-Tooth disease
    E.1.2System Organ Class 100000004850
    E.1.3Condition being studied is a rare disease Yes
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To evaluate the efficacy of treatment with PXT3003 (a fixed-dose combination of (RS)-baclofen, naltrexone hydrochloride, and D-sorbitol) compared to placebo in subjects with CMT1A
    E.2.2Secondary objectives of the trial
    To evaluate the safety and tolerability of PXT3003 treatment in subjects with CMT1A
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    1) Male and non-pregnant female subjects, aged 16 to 65 years with a genetically proven diagnosis of CMT1A
    2) Able to provide written informed consent/assent and comply with study procedures
    3) Mild-to-moderate severity assessed by CMTNS-v2 score >2 and ≤18
    4) Muscle weakness in at least foot dorsiflexion on clinical assessment
    5) Ulnar nerve motor conduction time of at least 15m/s
    6) Stable dose of prescribed psychoactive drugs (e.g. antidepressants, stimulants, tranquilizers, anti-epileptics) for at least 4 weeks prior to randomization, which is not planned to be changed
    7) Stable dose of prescribed or ‘over-the-counter’ (OTC) analgesic medications (e.g. paracetamol/acetaminophen, nonsteroidal anti-inflammatory drugs [NSAIDs]) for at least 2 weeks prior to randomization, which is not planned to be changed
    8) If female, subject must be: (a) Surgically sterilized via hysterectomy, bilateral oophorectomy, or bilateral tubal ligation; or (b) Of childbearing potential and using a birth control method such as:
    • Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation:
    o Oral
    o Intravaginal
    o Transdermal
    • Progestogen-only hormonal contraception associated with inhibition of ovulation:
    o Oral
    o Injectable
    o Implantable
    • Intrauterine device (IUD)
    • Intrauterine hormone-releasing system (IUS)
    • Bilateral tubal occlusion
    • Vasectomized partner
    • Sexual abstinence;
    or (c) Of non-childbearing potential (i.e., postmenopausal for at least 1 year)
    9) If male, the subject must have had a vasectomy or must use a reliable method of birth control with their partner or total abstinence from sexual intercourse. The subject must agree to continue using their selected method of birth control with their sexual partner during the study and for 120 days after study completion.

    E.4Principal exclusion criteria
    1) Subjects previously enrolled in any PXT3003 study
    2) Subjects living in the same household and enrolled in a PXT3003 study (due to potential lack of adequate storage for study material, risk of mixing treatments and potential unblinding)
    3) CMT of any subtype other than 1A
    4) ONLS score of 0
    5) Known clinically significant motor or sensory abnormalities secondary to a different neurological cause (e.g. diabetes, alcohol, vascular, autoimmune, neoplastic, neurodegenerative, HIV, etc.)
    6) Subjects who have had any surgery or have a concomitant disorder (e.g. severe arthrosis) that reduces the mobility of the ankle making it, in the opinion of the investigator, difficult to assess the efficacy of the treatment.
    7) Known peripheral neuropathy, myopathy, or neuromuscular disorder of any other kind
    8) Any other clinically significant and/or uncontrolled medical condition that, in the opinion of the investigator, could be a confound or may preclude successful participation or completion of the study
    9) Known hypersensitivity or intolerance to baclofen, naltrexone, or sorbitol
    10) Concomitant treatments including but not limited to baclofen, naltrexone, sorbitol (pharmaceutical form), opioids, and potentially neurotoxic drugs such as amiodarone, chloroquine, and chemotherapeutics capable of inducing peripheral neuropathy. Subjects able to stop these medications at least 2 weeks before randomization and for the study duration may be included
    11) History of porphyria
    12) Diagnosis or history of substance use disorder by DSM-V criteria within the past 12 months
    13) Medical or recreational use of marijuana in the 3 months prior to the Screening Visit
    14) Active suicidality (e.g. any suicide attempts within the past 12 months or any current suicide intent, including a plan, as assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) score of “YES” on questions 4 or 5; and/or based on clinical evaluation by the investigator)
    15) Currently active major depression, as determined by a Beck Depression Inventory (BDI-II) score ≥ 20
    16) Currently lactating, pregnant, or planning on becoming pregnant during the study
    17) Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) levels greater than 2 times the upper limit of normal (ULN)
    18) Significant renal impairment as determined by Glomerular Filtration Rate (GFR) of less than 50 mL/min
    19) Subject has participated in an investigational drug or device study within 30 days prior to the Screening Visit or plans to participate in an investigational drug or device study during the course of this study
    20) Subject is a dependent and/or relative of the Sponsor or investigator.
    E.5 End points
    E.5.1Primary end point(s)
    The change in the modified Overall Neuropathy Limitation Scale (ONLS) between baseline and the Month 15 visit.
    E.5.1.1Timepoint(s) of evaluation of this end point
    Month 15 visit
    E.5.2Secondary end point(s)
    The change from baseline to month 15 in the following outcome measures in hierarchical order:
    1) 10-Meter Walk Test (10mWT)
    2) Quantified Muscular Testing (bilateral foot dorsiflexion dynamometry)
    3) Patient Global Impression of Severity (PGI-S)
    4) Patient Global Impression of Change (PGI-C)*
    5) Charcot-Marie-Tooth Neuropathy Score, version 2 (CMTNS-v2)
    6) Quantified Muscular Testing (hand grip)
    * Because the PGI-C is already a change assessment, the change from Baseline is not needed for this endpoint.
    E.5.2.1Timepoint(s) of evaluation of this end point
    Month 15 visit
    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 Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic Yes
    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 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 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 concerned6
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA22
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Belgium
    Canada
    Denmark
    France
    Germany
    Israel
    Italy
    Netherlands
    Spain
    United States
    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
    LVLS - completion of the Month 15 Visit by the last subject
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years2
    E.8.9.1In the Member State concerned months4
    E.8.9.1In the Member State concerned days28
    E.8.9.2In all countries concerned by the trial years2
    E.8.9.2In all countries concerned by the trial months4
    E.8.9.2In all countries concerned by the trial days28
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 Yes
    F.1.1Number of subjects for this age range: 56
    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) Yes
    F.1.1.6.1Number of subjects for this age range: 56
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 271
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 23
    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 state35
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 130
    F.4.2.2In the whole clinical trial 350
    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 Decision2021-04-07
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2021-05-04
    P. End of Trial
    P.End of Trial StatusOngoing
    For support, visit the EMA Service Desk , log in using your EMA account and open a ticket specifying "EU CTR" in your request.
    If you do not have an account, please visit the EMA Account management page page click on "Create an EMA account" and follow the instructions.
    The status of studies in GB is no longer updated from 1.1.2021
    For the UK, as from 1.1.2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI
    EU Clinical Trials Register Service Desk: https://servicedesk.ema.europa.eu
    European Medicines Agency © 1995-2022 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    Legal notice
    EMA HMA