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    Clinical Trial Results:
    A phase 2, double-blind, parallel group, randomised, placebo controlled, proof of concept study to assess the safety and efficacy of OBE001 after oral administration in pregnant women with threatened preterm labour.

    Summary
    EudraCT number
    2014-003217-28
    Trial protocol
    ES   DE   BE   PL   GB   CZ  
    Global end of trial date
    28 Oct 2016

    Results information
    Results version number
    v1(current)
    This version publication date
    12 Nov 2017
    First version publication date
    12 Nov 2017
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    14-OBE001-016
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    ObsEva SA
    Sponsor organisation address
    12 Chemin des Aulx, Plan-Les-Ouates, Switzerland, 1228
    Public contact
    Clinical Trials Information, ObsEva SA, 41 0225523840, clinicaltrials@obseva.ch
    Scientific contact
    Clinical Trials Information, ObsEva SA, 41 0225523840, clinicaltrials@obseva.ch
    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 Apr 2017
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    28 Oct 2016
    Global end of trial reached?
    Yes
    Global end of trial date
    28 Oct 2016
    Was the trial ended prematurely?
    Yes
    General information about the trial
    Main objective of the trial
    To compare the efficacy of OBE001 with placebo to delay preterm birth by 7 days.
    Protection of trial subjects
    This study was performed in accordance with the protocol, the Declaration of Helsinki, the ICH Harmonised Tripartite Guideline for GCP, and all applicable local regulatory requirements.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    05 Jan 2015
    Long term follow-up planned
    Yes
    Long term follow-up rationale
    Safety
    Long term follow-up duration
    2 Years
    Independent data monitoring committee (IDMC) involvement?
    Yes
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    Poland: 2
    Country: Number of subjects enrolled
    Spain: 3
    Country: Number of subjects enrolled
    Belgium: 2
    Country: Number of subjects enrolled
    Germany: 1
    Country: Number of subjects enrolled
    Switzerland: 2
    Worldwide total number of subjects
    10
    EEA total number of subjects
    8
    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)
    10
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    Date of first subject first visit 11 Jun 2015 Date of last subject last visit 24 Aug 2016 A total of 25 sites were opened, 3 in Belgium, 4 in Switzerland, 4 in Germany, 5 in Spain, 3 in the UK, and 6 in Poland. Of these only 6 sites recruited subjects.

    Pre-assignment
    Screening details
    To be included in this study, women had to present with preterm labour with a high risk to progress to a birth within 7 days i.e. ≥ 3 contractions per 30 mins plus one other sign of the progression of labour such as a positive foetal fibronectin test, a cervical length less than 25 mm or cervical dilatation 2–4 cm.

    Period 1
    Period 1 title
    Overall trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Double blind
    Roles blinded
    Subject, Investigator, Monitor
    Blinding implementation details
    Prior to the start of the study, the randomisation list was generated by the designated statistician and transmitted to the assigned clinical packaging organisation for labelling and to a fully web-integrated IWRS.

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    OBE001
    Arm description
    OBE001 oral dispersible tablets for 7 days with a loading dose of 200 mg on Day 1 followed by 100 mg/day for 6 days.
    Arm type
    Experimental

    Investigational medicinal product name
    OBE001
    Investigational medicinal product code
    OBE001
    Other name
    Pharmaceutical forms
    Dispersible tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Each subject was assigned a treatment kit containing 3 aluminium-aluminium blisters as follows: Day 1: 4 cavities/blister (1 x 200 mg dose) Day 2-4: 6 cavities/blister (3 x 100 mg doses) Day 5-7: 6 cavities/blister (3 x 100 mg doses)

    Arm title
    placebo
    Arm description
    matching placebo - oral dispersible tablets for 7 days with a loading dose of 200 mg on Day 1 followed by 100 mg/day for 6 days.
    Arm type
    Placebo

    Investigational medicinal product name
    placebo (to match OBE001)
    Investigational medicinal product code
    placebo
    Other name
    Pharmaceutical forms
    Dispersible tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Each subject was assigned a treatment kit containing 3 aluminium-aluminium blisters as follows: Day 1: 4 cavities/blister (1 x 200 mg dose) Day 2-4: 6 cavities/blister (3 x 100 mg doses) Day 5-7: 6 cavities/blister (3 x 100 mg doses)

    Number of subjects in period 1
    OBE001 placebo
    Started
    4
    6
    Completed
    4
    3
    Not completed
    0
    3
         didn't want to visit site except newborn follow-up
    -
    1
         went into labour and did not start IMP treatment
    -
    1
         Lost to follow-up
    -
    1

    Baseline characteristics

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

    Reporting group values
    Overall trial Total
    Number of subjects
    10 10
    Age categorical
    Units: Subjects
    Age continuous
    FAS
    Units: years
        arithmetic mean (full range (min-max))
    29.9 (19 to 37) -
    Gender categorical
    Units: Subjects
        Female
    10 10
    Subject analysis sets

    Subject analysis set title
    Full Analysis Set - OBE001
    Subject analysis set type
    Full analysis
    Subject analysis set description
    The FAS included all subjects randomized who received at least one dose of OBE001

    Subject analysis set title
    Full Analysis Set - Placebo
    Subject analysis set type
    Full analysis
    Subject analysis set description
    The FAS included all subjects randomized who received at least one dose of placebo

    Subject analysis sets values
    Full Analysis Set - OBE001 Full Analysis Set - Placebo
    Number of subjects
    4
    5
    Age categorical
    Units: Subjects
    Age continuous
    FAS
    Units: years
        arithmetic mean (full range (min-max))
    28 (20 to 33)
    30 (19 to 35)
    Gender categorical
    Units: Subjects
        Female
    4
    5

    End points

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    End points reporting groups
    Reporting group title
    OBE001
    Reporting group description
    OBE001 oral dispersible tablets for 7 days with a loading dose of 200 mg on Day 1 followed by 100 mg/day for 6 days.

    Reporting group title
    placebo
    Reporting group description
    matching placebo - oral dispersible tablets for 7 days with a loading dose of 200 mg on Day 1 followed by 100 mg/day for 6 days.

    Subject analysis set title
    Full Analysis Set - OBE001
    Subject analysis set type
    Full analysis
    Subject analysis set description
    The FAS included all subjects randomized who received at least one dose of OBE001

    Subject analysis set title
    Full Analysis Set - Placebo
    Subject analysis set type
    Full analysis
    Subject analysis set description
    The FAS included all subjects randomized who received at least one dose of placebo

    Primary: incidence of women delivering within 7 days post first dose

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    End point title
    incidence of women delivering within 7 days post first dose
    End point description
    End point type
    Primary
    End point timeframe
    The primary endpoint was the incidence of women delivering within 7 days post first dose (i.e. within 168 hours of first dose).
    End point values
    OBE001 placebo
    Number of subjects analysed
    4
    5
    Units: number of women
    1
    1
    Statistical analysis title
    statistical analysis plan dated 19 October 2016
    Statistical analysis description
    All statistical analyses and data processing were performed using SAS® Version 9.4 on a Windows 7 operating system. Descriptive statistics are provided for all variables in the summary tables by treatment group according to the type of variable summarized. Quantitative variables are summarised using number (n), arithmetic mean, standard deviation (SD), median, 1st and 3rd quartiles, minimum and maximum. Categorical variables are summarised using count and percentages.
    Comparison groups
    OBE001 v placebo
    Number of subjects included in analysis
    9
    Analysis specification
    Pre-specified
    Analysis type
    other [1]
    P-value
    = 1
    Method
    Fisher exact
    Confidence interval
    Notes
    [1] - Analyses were performed on the FAS set only.

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Data on AEs was obtained at scheduled and unscheduled study visits, based on information spontaneously provided by the subject and/ or through questioning of the subject.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    17.1
    Reporting groups
    Reporting group title
    OBE001 Maternal TEAEs
    Reporting group description
    An AE was classified as a TEAE if it started on or after the date of randomised study medication intake (AE onset date ≥ first date of randomised study medication intake) and up to 7 days after treatment end (AE onset date ≤ last date of randomised study medication intake +7 days).

    Reporting group title
    placebo Maternal TEAEs
    Reporting group description
    An AE was classified as a TEAE if it started on or after the date of randomised study medication intake (AE onset date ≥ first date of randomised study medication intake) and up to 7 days after treatment end (AE onset date ≤ last date of randomised study medication intake +7 days).

    Reporting group title
    OBE001 Maternal Post-TEAEs
    Reporting group description
    An AE was classed as a post-treatment AE if it started after 7 days after treatment end (AE onset date > last date of randomised study medication intake +7 days).

    Reporting group title
    placebo Maternal Post-TEAEs
    Reporting group description
    An AE was classed as a post-treatment AE if it started after 7 days after treatment end (AE onset date > last date of randomised study medication intake +7 days).

    Reporting group title
    OBE001 Foetal TEAEs
    Reporting group description
    All foetal TEAEs, defined as adverse events with onset date ≥ date of randomized study medication intake are provided here

    Reporting group title
    placebo Foetal TEAEs
    Reporting group description
    All foetal TEAEs, defined as adverse events with onset date ≥ date of randomized study medication intake are presented here

    Reporting group title
    OBE001 Infant TEAEs
    Reporting group description
    Infant AEs were defined as any AE detected in an infant, observed between the day of delivery and the last visit. Infant adverse events are presented in the same way as maternal adverse events with the exception of pre-treatment and post-treatment adverse events (as these are not applicable for infants).

    Reporting group title
    placebo Infant TEAEs
    Reporting group description
    Infant AEs were defined as any AE detected in an infant, observed between the day of delivery and the last visit. Infant adverse events are presented in the same way as maternal adverse events with the exception of pre-treatment and post-treatment adverse events (as these are not applicable for infants).

    Serious adverse events
    OBE001 Maternal TEAEs placebo Maternal TEAEs OBE001 Maternal Post-TEAEs placebo Maternal Post-TEAEs OBE001 Foetal TEAEs placebo Foetal TEAEs OBE001 Infant TEAEs placebo Infant TEAEs
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         number of deaths (all causes)
    0
    0
    0
    0
    0
    0
    0
    0
         number of deaths resulting from adverse events
    0
    0
    0
    0
    0
    0
    0
    0
    Pregnancy, puerperium and perinatal conditions
    Foetal distress syndrome
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Gastrointestinal disorders
    Pancreatitis acute
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 0%
    Non-serious adverse events
    OBE001 Maternal TEAEs placebo Maternal TEAEs OBE001 Maternal Post-TEAEs placebo Maternal Post-TEAEs OBE001 Foetal TEAEs placebo Foetal TEAEs OBE001 Infant TEAEs placebo Infant TEAEs
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    2 / 4 (50.00%)
    4 / 5 (80.00%)
    2 / 4 (50.00%)
    1 / 5 (20.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    2 / 4 (50.00%)
    3 / 5 (60.00%)
    Investigations
    Alanine aminotransferase increased
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Aspartate aminotransferase increased
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Surgical and medical procedures
    Phototherapy
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    2 / 5 (40.00%)
         occurrences all number
    0
    0
    0
    0
    0
    0
    0
    2
    Nervous system disorders
    Dizziness
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    Tremor
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    Pregnancy, puerperium and perinatal conditions
    Postpartum haemorrhage
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Foetal distress syndrome
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    0
    0
    1
    0
    0
    0
    Blood and lymphatic system disorders
    Anaemia of pregnancy acute
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    1
    0
    0
    0
    0
    0
    Anaemia
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Gastrointestinal disorders
    Pancreatitis acute
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    0
    2
    0
    0
    0
    0
    Nausea
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    Vomiting
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    Small intestinal obstruction
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    0
    0
    0
    0
    2
    0
    Reproductive system and breast disorders
    Breast pain
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    Vaginal discharge
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Respiratory, thoracic and mediastinal disorders
    Dyspnoea
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    apnoea neonatal
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    0
    0
    0
    0
    1
    0
    Neonatal respiratory distress syndrome
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    0
    0
    0
    0
    0
    0
    1
    Hepatobiliary disorders
    Jaundice
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    3 / 5 (60.00%)
         occurrences all number
    0
    0
    0
    0
    0
    0
    0
    3
    Skin and subcutaneous tissue disorders
    Swelling face
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0
    Musculoskeletal and connective tissue disorders
    Spinal pain
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Infections and infestations
    Mastitis
         subjects affected / exposed
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    1
    0
    0
    0
    0
    0
    Urinary tract infection
         subjects affected / exposed
    0 / 4 (0.00%)
    1 / 5 (20.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    1
    0
    0
    0
    0
    0
    0
    Vulvovaginal mycotic infection
         subjects affected / exposed
    1 / 4 (25.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
    0 / 4 (0.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    0
    0
    0
    0
    0
    0

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    09 Dec 2014
    The study rationale was clarified and expanded including: · The 2 year observational, safety follow-up study was included as an extension to the current study instead of existing as a stand-alone protocol. · Clarification of the definition of “end of study”.
    07 Sep 2015
    · Amendments to the wash-out period for excluded medication. · Further clarification of exclusion criterion #3d. · Clarification of the SAE reporting timescale
    07 Dec 2015
    · Additional assessment of uterine contractions at 3 hours in order to assess treatment efficacy at peak drug concentrations. · Modification of overly restrictive definition of preterm labour to help increase recruitment rates. · Exclusion criterion of “eclampsia or severe pre-eclampsia” modified to “eclampsia or pre-eclampsia”. · Modification of ECG requirements on entry and additional exclusion of subjects for whom treatment with parenteral magnesium sulphate was anticipated. · Further modification of the specified washout periods for certain tocolytics based on their pharmacokinetic properties. · Modified definition of preterm labour. · Addition of safety information from recently updated investigators brochure. · Additional increase in the number of centres.

    Interruptions (globally)

    Were there any global interruptions to the trial? Yes
    Date
    Interruption
    Restart date
    13 Jul 2016
    The study aimed to recruit 100 subjects by the end of 2015. Due to difficulties with recruitment the sponsor decided to terminate the study on 13 July 2016. Investigators were notified on the same day and asked not to recruit any more subjects after 25 July 2016. Only 10 subjects were randomised into the study.
    -

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    Many of the statistical analyses described in the study protocol were not performed due to the Sponsor’s decision to terminate the study early. The statistical analyses performed are primarily only summaries, plus listings of the data.
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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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