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    Clinical Trial Results:
    An Open-Label Long-Term Safety Study of Serlopitant for the Treatment of Pruritus

    Summary
    EudraCT number
    2017-004211-40
    Trial protocol
    DE   AT   PL  
    Global end of trial date
    08 Apr 2020

    Results information
    Results version number
    v1(current)
    This version publication date
    21 Jan 2021
    First version publication date
    21 Jan 2021
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    MTI-107
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT03540160
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Menlo Therapeutics Inc.
    Sponsor organisation address
    200 Cardinal Way, 2nd Floor, Redwood City, CA, United States, 94063
    Public contact
    Chief Scientific Officer, Menlo Therapeutics Inc., 1-800 775-7936, Iain.Stuart@foamix.com
    Scientific contact
    Chief Scientific Officer, Menlo Therapeutics Inc., 1-800 775-7936, Iain.Stuart@foamix.com
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    No
    Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    24 Aug 2020
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    08 Apr 2020
    Was the trial ended prematurely?
    Yes
    General information about the trial
    Main objective of the trial
    The primary objective of this study is to assess the long-term safety of serlopitant in adults with pruritus associated with prurigo nodularis (PN), atopic dermatitis (AD), or psoriasis.
    Protection of trial subjects
    This study was conducted in accordance with the ethical principles that have their origin in the Declaration of Helsinki and the International Conference on Harmonization (ICH) Note for Guidance on Good Clinical Practice (GCP) (CPMP/ICH/135/95) and with applicable local requirements. Prior to the performance of any study-specific procedure, written informed consent was obtained from each subject. The subject was informed about the nature and purpose of the study, as well as of its risks and benefits. It was explained that the subject could withdraw from the study at any time and for any reason, and that this would not have any effect on his/her potential future medical care. Representative written information given to the subject and a sample of the IEC/IRB-approved consent form.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    15 Mar 2018
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    No
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    United States: 279
    Country: Number of subjects enrolled
    European Union: 279
    Worldwide total number of subjects
    558
    EEA total number of subjects
    0
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    0
    Infants and toddlers (28 days-23 months)
    0
    Children (2-11 years)
    0
    Adolescents (12-17 years)
    0
    Adults (18-64 years)
    388
    From 65 to 84 years
    164
    85 years and over
    6

    Subject disposition

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    Recruitment
    Recruitment details
    The study was conducted at 120 sites from 15 March 2018 to 08 April 2020. All participants who met the study entry criteria received daily oral doses of serlopitant 5 mg tablet.

    Pre-assignment
    Screening details
    Subjects attended a screening visit before receiving their first dose. All subjects underwent inclusion exclusion criteria assessment and all eligible subjects signed the informed consent before undergoing any study-related procedures.

    Period 1
    Period 1 title
    Overall Period
    Is this the baseline period?
    Yes
    Allocation method
    Non-randomised - controlled
    Blinding used
    Not blinded

    Arms
    Arm title
    Serlopitant 5 mg
    Arm description
    Subjects received serlopitant 5 mg tablet once daily orally from Baseline Visit (Study Day 1) until the Week 52 Visit.
    Arm type
    Experimental

    Investigational medicinal product name
    Serlopitant
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    5 mg tablet once daily

    Number of subjects in period 1 [1]
    Serlopitant 5 mg
    Started
    549
    Completed
    179
    Not completed
    370
         Physician decision
    8
         Consent withdrawn by subject
    68
         COVID-19
    2
         Study Closure
    10
         Adverse event, non-fatal
    20
         Pregnancy
    1
         Lost to follow-up
    18
         Sponsor decision
    182
         Protocol deviation
    1
         Lack of efficacy
    60
    Notes
    [1] - The number of subjects reported to be in the baseline period are not the same as the worldwide number enrolled in the trial. It is expected that these numbers will be the same.
    Justification: Nine subjects were excluded from the safety population (all from US) due to no evidence of subject dosing and/or no post-Baseline assessment/treatment emergent adverse event.

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Overall Period
    Reporting group description
    -

    Reporting group values
    Overall Period Total
    Number of subjects
    549 549
    Age categorical
    Units: Subjects
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    56.1 ( 14.62 ) -
    Gender categorical
    Units: Subjects
        Male
    198 198
        Female
    351 351

    End points

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    End points reporting groups
    Reporting group title
    Serlopitant 5 mg
    Reporting group description
    Subjects received serlopitant 5 mg tablet once daily orally from Baseline Visit (Study Day 1) until the Week 52 Visit.

    Primary: Number of Subjects With Treatment-emergent Adverse Events

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    End point title
    Number of Subjects With Treatment-emergent Adverse Events [1]
    End point description
    Treatments emergent adverse events (TEAEs) and serious adverse events (SAEs) were recorded from the first study drug administration through the follow-up visit. Severity of all AEs were graded using the National Cancer Institute Common Terminology Criteria for Adverse Events v4.03. During the period between informed consent and first study drug dose, only SAEs caused by a protocol-mandated intervention were collected.
    End point type
    Primary
    End point timeframe
    From baseline until the Follow-up (F/U) visit which occurred 35 days (+ 7 days) after the Week 52 visit or the last dose of study drug for subjects who discontinued study drug early.
    Notes
    [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: No statistical analyses were performed for this outcome measure.
    End point values
    Serlopitant 5 mg
    Number of subjects analysed
    549
    Units: Subjects
        Subjects with any TEAE
    325
        Subjects with any related TEAE
    55
        Subjects with any SAE
    45
        Subjects with any related SAE
    1
        Subjects who died
    0
        Subjects who discontinued study drug due to TEAE
    28
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    From baseline until the F/U visit which occurred 35 days (+ 7 days) after the Week 52 visit or the last dose of study drug for subjects who discontinued study drug early
    Assessment type
    Non-systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    21.1
    Reporting groups
    Reporting group title
    Serlopitant 5 mg
    Reporting group description
    Subjects received serlopitant 5 mg tablet once daily orally.

    Serious adverse events
    Serlopitant 5 mg
    Total subjects affected by serious adverse events
         subjects affected / exposed
    45 / 549 (8.20%)
         number of deaths (all causes)
    0
         number of deaths resulting from adverse events
    0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Oesophageal carcinoma
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Vascular disorders
    Arterial occlusive disease
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hypertension
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Peripheral arterial occlusive disease
         subjects affected / exposed
    2 / 549 (0.36%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Surgical and medical procedures
    Hernia hiatus repair
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pregnancy, puerperium and perinatal conditions
    Abortion spontaneous
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Asthma
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory failure
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Psychiatric disorders
    Adjustment disorder with anxiety
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Investigations
    Anticoagulation drug level below
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Injury, poisoning and procedural complications
    Clavicle fracture
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Craniofacial fracture
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Femur fracture
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Muscle rupture
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac disorders
    Arrhythmia
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Atrial fibrillation
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Coronary artery stenosis
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Myocardial infarction
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sinus node dysfunction
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ventricular asystole
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Nervous system disorders
    Haemorrhage intracranial
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Neurodegenerative disorder
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Radiculopathy
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Eye disorders
    Corneal perforation
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Gastrointestinal disorders
    Gastritis haemorrhagic
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Inguinal hernia
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Mechanical ileus
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pancreatic disorder
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hepatobiliary disorders
    Bile duct stone
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cholelithiasis
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Skin and subcutaneous tissue disorders
    Dermatitis contact
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Diabetic foot
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Lichen planus
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Neurodermatitis
         subjects affected / exposed
    3 / 549 (0.55%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Urticaria
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal and urinary disorders
    Acute kidney injury
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Musculoskeletal and connective tissue disorders
    Arthralgia
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Fasciitis
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Intervertebral disc protrusion
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Infections and infestations
    Abscess jaw
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cellulitis
         subjects affected / exposed
    2 / 549 (0.36%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Diarrhoea infectious
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Empyema
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Erysipelas
         subjects affected / exposed
    2 / 549 (0.36%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Herpes zoster
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumonia
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sepsis
         subjects affected / exposed
    2 / 549 (0.36%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Metabolism and nutrition disorders
    Abnormal loss of weight
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Diabetic ketoacidosis
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Diabetic metabolic decompensation
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hypokalaemia
         subjects affected / exposed
    1 / 549 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Serlopitant 5 mg
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    36 / 549 (6.56%)
    Infections and infestations
    Nasopharyngitis
         subjects affected / exposed
    36 / 549 (6.56%)
         occurrences all number
    42

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    11 Apr 2018
    V 1.1: Regarding the potential benefit and potential risk for the participating patients as well as the assessment of the ratio of this benefit and risk.
    03 Jul 2018
    V 2.0: -The study post-drug observation period was extended to 5 weeks from 4 weeks. -Removal of the PROMIS-PIQ associated efficacy endpoints and analyses. -Added two safety endpoints to measure change from baseline in Hospital Anxiety and Depression Scale (HADS) and the Epworth Sleepiness Scale (ESS) responses.
    21 Mar 2019
    V 3.0: Changed number of patients from 400 to 700

    Interruptions (globally)

    Were there any global interruptions to the trial? Yes
    Date
    Interruption
    Restart date
    08 Apr 2020
    This study was terminated prematurely due to a corporate decision to no longer pursue an indication of treatment for pruritus, and further to terminate the overall development program for serlopitant. For these reasons the statistical analysis plan was revised and the summary tables were limited to disposition, demographics, and AEs. All other results were provided as subject data listings.
    -

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    This study was terminated prematurely due to a corporate decision to no longer pursue an indication of treatment for pruritus, and further to terminate the overall development program for serlopitant.
    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.

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