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 were approved in the European Union (EU)/European Economic Area (EEA) under the Clinical Trials Directive 2001/20/EC
  • clinical trials conducted outside the EU/EEA that are linked to European paediatric-medicine development

    • EU/EEA interventional clinical trials approved under or transitioned to the Clinical Trial Regulation 536/2014 are publicly accessible through the
    Clinical Trials Information System (CTIS).

    The EU Clinical Trials Register currently displays   44334   clinical trials with a EudraCT protocol, of which   7366   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 on adults and that are not part of an agreed paediatric investigation plan (PIP) are not publicly available (see Frequently Asked Questions ).  
     
    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:2021-001433-39
    Sponsor's Protocol Code Number:NBI-921352-FOS2021
    National Competent Authority:France - ANSM
    Clinical Trial Type:EEA CTA
    Trial Status:Completed
    Date on which this record was first entered in the EudraCT database:2021-07-16
    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 ConcernedFrance - ANSM
    A.2EudraCT number2021-001433-39
    A.3Full title of the trial
    A Phase 2 Randomized, Double-Blind, Placebo-Controlled, Dose-Finding Study to Investigate Safety, Tolerability, Pharmacokinetics, and Efficacy of NBI-921352 as Adjunctive Therapy in Adult Subjects with Focal Onset Seizures (FOS)
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A Study to Investigate how effective, safe and tolerable the drug NBI-921352 is when used with anti-seizure medications in adults with focal onset seizures
    A.4.1Sponsor's protocol code numberNBI-921352-FOS2021
    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 SponsorNeurocrine Biosciences, Inc.
    B.1.3.4CountryUnited States
    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 supportNeurocrine Biosciences Inc.
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationNeurocrine Biosciences Inc.
    B.5.2Functional name of contact pointMedical Information Call Center
    B.5.3 Address:
    B.5.3.1Street Address12780 El Camino Real
    B.5.3.2Town/ citySan Diego
    B.5.3.3Post codeCA 92130
    B.5.3.4CountryUnited States
    B.5.4Telephone number+18776413461
    B.5.6E-mailmedinfo@neurocrine.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 No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.2Product code NBI-921352
    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 INNNBI-921352
    D.3.9.2Current sponsor codeNBI-921352
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number25
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNNBI-921352
    D.3.9.2Current sponsor codeNBI-921352
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number50
    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
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Focal Onset Seizures (FOS)
    E.1.1.1Medical condition in easily understood language
    Epilepsy
    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 21.1
    E.1.2Level LLT
    E.1.2Classification code 10016843
    E.1.2Term Focal seizures
    E.1.2System Organ Class 100000004852
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    The study is designed to facilitate the selection of a suitable dose range of NBI-921352 for use in subsequent efficacy and safety studies in adult subjects with FOS. The study objectives are as follows:
    • To assess the safety and tolerability of NBI-921352 in adults with FOS taking
    concomitant background ASMs.
    • To characterize the PK and PK/pharmacodynamic (PD) relationship of NBI-921352 and determine the effect of NBI-921352 on plasma levels of background ASMs.
    • To assess the efficacy of NBI-921352 on FOS frequency and quality of life in adults with FOS taking concomitant background ASMs.
    E.2.2Secondary objectives of the trial
    Not applicable
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    Subjects must meet all of the following inclusion criteria:
    • Capable of providing consent and has completed the written informed consent.

    • Male or female, 18 to 65 years of age, inclusive, with a body mass index <40 kg/m2.

    • Diagnosis of focal onset epilepsy according to the International League Against Epilepsy (ILAE) Classification of Epilepsy (2017) at least 18 months before screening. Diagnosis must be confirmed using the central adjudication process.

    • Documented seizure frequency in the baseline seizure diary

    • History of uncontrolled seizures despite adequate treatment with at least 1 anti-seizure medication (ASM) for at least 18 months prior to screening.
    • Treatment with at least 1 but not more than 4 ASMs for at least 1 month before screening, during the baseline seizure diary data collection, and throughout the duration of the study.

    • Female subjects of childbearing potential must agree to use contraception consistently from screening until the final study visit or 30 days after the last dose of study treatment, whichever is longer.

    • Be able to keep accurate seizure diaries
    E.4Principal exclusion criteria
    Subjects will be excluded from the study if they meet any of the following criteria:
    •History of epilepsy with only nonmotor seizures without an observable component, psychogenic nonepileptic seizures, or primary generalized seizures.

    •Presence or previous history of developmental and/or epileptic encephalopathy.

    •Presence of seizure types other than FOS.

    •History of repetitive seizures within the 12-month period preceding study entry where the individual seizures cannot be counted.

    •Status epilepticus within the last 12 months before enrollment.

    •Any suicidal behavior or suicidal ideation of type 4 or type 5 in the 2 years before screening, a history of suicide attempt in the last 2 years, or more than 1 lifetime suicide attempt.

    •History or presence of any significant medical or surgical condition, lab value, or concomitant medication that would place the subject at increased risk as determined by the investigator.

    •A known history of clinically concerning cardiac arrhythmia (including long QT syndrome) or prolongation of screening (pre-treatment) QT interval corrected for heart rate.

    •Currently taking disallowed medications listed in Section 7.1.1 or it is anticipated that the subject will require treatment with at least 1 of the disallowed concomitant medications during the study.

    •Past use of vigabatrin without stable visual fields tested twice in the 12 months after the last dose of vigabatrin.

    •Require use of rescue medication more than once per week.
    •Multiple drug allergies or a severe drug reaction to an ASM(s), including dermatological (eg, Stevens-Johnson syndrome), hematological, or organ toxicity reactions.

    •An implanted responsive neurostimulator system (RNS).
    E.5 End points
    E.5.1Primary end point(s)
    Primary:
    • Number of participants with Serious Treatment-emergent Adverse Events ( TEAEs), TEAEs leading to discontinuation of study treatment, and fatal TEAEs
    • NBI-921352 PK/PD, including exposure-efficacy response relationship
    E.5.1.1Timepoint(s) of evaluation of this end point
    Baseline, Treatment Period: Day 1 to Week 11
    E.5.2Secondary end point(s)
    Secondary:
    • Percent change from baseline in monthly Focal onset seizure frequency during the treatment period
    • Percent change from baseline in monthly focal onset seizure frequency during the maintenance period
    • Clinical Global Impression of Change (CGIC) scores at Week 11
    • Treatment response defined as ≥50% reduction in monthly (28 days) FOS frequency during the treatment period compared to the seizure baseline period.
    E.5.2.1Timepoint(s) of evaluation of this end point
    Baseline, Treatment Period: Day 1 to Week 11; Maintenance Period: Week 4 to Week 11
    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 Yes
    E.6.7Pharmacodynamic Yes
    E.6.8Bioequivalence No
    E.6.9Dose response Yes
    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) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    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 trial4
    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 concerned5
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA26
    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
    Australia
    Belgium
    France
    Hungary
    Italy
    Spain
    United Kingdom
    Czechia
    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
    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
    E.8.9.2In all countries concerned by the trial years1
    E.8.9.2In all countries concerned by the trial months3
    E.8.9.2In all countries concerned by the trial days15
    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: 92
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 8
    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 state10
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 63
    F.4.2.2In the whole clinical trial 100
    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)
    Normal treatment as discussed with their doctor or eligible subjects will have the option to enrol into an extension study to receive NBI-921352.
    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 Decision2021-09-24
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2021-08-25
    P. End of Trial
    P.End of Trial StatusCompleted
    P.Date of the global end of the trial2023-08-21
    For support, Contact us.
    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.

    European Medicines Agency © 1995-Mon May 05 22:59:37 CEST 2025 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    EMA HMA