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    Clinical Trial Results:
    A Phase 1 Relative Bioavailability and Food Effect Study of a Pediatric Oral Granule Formulation of SOF/VEL in Healthy Adult Subjects

    Summary
    EudraCT number
    2017-004044-37
    Trial protocol
    Outside EU/EEA  
    Global end of trial date
    23 Oct 2017

    Results information
    Results version number
    v1(current)
    This version publication date
    03 Nov 2018
    First version publication date
    03 Nov 2018
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    GS-US-342-1142
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Gilead Sciences
    Sponsor organisation address
    333 Lakeside Drive, Foster City, CA, United States, 94404
    Public contact
    Gilead Clinical Study Information Center, Gilead Sciences , GileadClinicalTrials@gilead.com
    Scientific contact
    Gilead Clinical Study Information Center, Gilead Sciences , GileadClinicalTrials@gilead.com
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    Yes
    EMA paediatric investigation plan number(s)
    EMEA-001646-PIP01-14
    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
    23 Oct 2017
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    16 Oct 2017
    Global end of trial reached?
    Yes
    Global end of trial date
    23 Oct 2017
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The primary objectives of this study were to evaluate the relative bioavailability of a pediatric oral granule formulation of sofosbuvir/velpatasvir (SOF/VEL) fixed-dose combination (FDC) relative to tablet formulation and to evaluate the effect of concomitant food intake on the pharmacokinetics of a pediatric granule formulation of SOF/VEL.
    Protection of trial subjects
    The protocol and consent/assent forms were submitted by each investigator to a duly constituted Independent Ethics Committee (IEC) or Institutional Review Board (IRB) for review and approval before study initiation. All revisions to the consent/assent forms (if applicable) after initial IEC/IRB approval were submitted by the investigator to the IEC/IRB for review and approval before implementation in accordance with regulatory requirements. This study was conducted in accordance with recognized international scientific and ethical standards, including but not limited to the International Conference on Harmonization guideline for Good Clinical Practice (ICH GCP) and the original principles embodied in the Declaration of Helsinki.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    27 Mar 2017
    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: 112
    Worldwide total number of subjects
    112
    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)
    112
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    Participants were enrolled at 1 study site in the United States. The first participant was screened on 27 March 2017. The last study visit occurred on 23 October 2017.

    Pre-assignment
    Screening details
    187 participants were screened.

    Period 1
    Period 1 title
    Overall Study (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Not blinded

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Treatment AB
    Arm description
    Treatment A, 8-day washout, and then Treatment B.
    Arm type
    Experimental

    Investigational medicinal product name
    Sofosbuvir/velpatasvir
    Investigational medicinal product code
    Other name
    Epclusa®, SOF/VEL, GS-7977/GS-5816
    Pharmaceutical forms
    Granules, Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Treatment A: Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions; Treatment B: Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC1 - 20% taste-mask coating) under fasted conditions

    Arm title
    Treatment BA
    Arm description
    Treatment B, 8-day washout, and then Treatment A.
    Arm type
    Experimental

    Investigational medicinal product name
    Sofosbuvir/velpatasvir
    Investigational medicinal product code
    Other name
    Epclusa®, SOF/VEL, GS-7977/GS-5816
    Pharmaceutical forms
    Granules, Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Treatment B: Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC1 - 20% taste-mask coating) under fasted conditions; Treatment A: Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions

    Arm title
    Treatment ACG
    Arm description
    Treatment A, 8-day washout, Treatment C, 8-day washout, and then Treatment G.
    Arm type
    Experimental

    Investigational medicinal product name
    Sofosbuvir/velpatasvir
    Investigational medicinal product code
    Other name
    Epclusa®, SOF/VEL, GS-7977/GS-5816
    Pharmaceutical forms
    Granules, Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Treatment A: Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions; Treatment C: Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fasted conditions; Treatment G: Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fed conditions

    Arm title
    Treatment CAG
    Arm description
    Treatment C, 8-day washout, Treatment A, 8-day washout, and then Treatment G.
    Arm type
    Experimental

    Investigational medicinal product name
    Sofosbuvir/velpatasvir
    Investigational medicinal product code
    Other name
    Epclusa®, SOF/VEL, GS-7977/GS-5816
    Pharmaceutical forms
    Granules, Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Treatment C: Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fasted conditions; Treatment A: Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions; Treatment G: Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fed conditions

    Number of subjects in period 1
    Treatment AB Treatment BA Treatment ACG Treatment CAG
    Started
    28
    28
    28
    28
    Completed
    28
    28
    28
    28

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Treatment AB
    Reporting group description
    Treatment A, 8-day washout, and then Treatment B.

    Reporting group title
    Treatment BA
    Reporting group description
    Treatment B, 8-day washout, and then Treatment A.

    Reporting group title
    Treatment ACG
    Reporting group description
    Treatment A, 8-day washout, Treatment C, 8-day washout, and then Treatment G.

    Reporting group title
    Treatment CAG
    Reporting group description
    Treatment C, 8-day washout, Treatment A, 8-day washout, and then Treatment G.

    Reporting group values
    Treatment AB Treatment BA Treatment ACG Treatment CAG Total
    Number of subjects
    28 28 28 28 112
    Age categorical
    Units: Subjects
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    34 ± 7.5 34 ± 7.4 35 ± 7.2 35 ± 7.7 -
    Gender categorical
    Units: Subjects
        Female
    13 12 10 8 43
        Male
    15 16 18 20 69
    Race
    Units: Subjects
        Black or African American
    10 9 11 10 40
        White
    18 19 17 18 72
    Ethnicity
    Units: Subjects
        Hispanic or Latino
    21 21 23 19 84
        Not Hispanic or Latino
    7 7 5 9 28

    End points

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    End points reporting groups
    Reporting group title
    Treatment AB
    Reporting group description
    Treatment A, 8-day washout, and then Treatment B.

    Reporting group title
    Treatment BA
    Reporting group description
    Treatment B, 8-day washout, and then Treatment A.

    Reporting group title
    Treatment ACG
    Reporting group description
    Treatment A, 8-day washout, Treatment C, 8-day washout, and then Treatment G.

    Reporting group title
    Treatment CAG
    Reporting group description
    Treatment C, 8-day washout, Treatment A, 8-day washout, and then Treatment G.

    Subject analysis set title
    Cohort 1, Treatment A
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions

    Subject analysis set title
    Cohort 1, Treatment B
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC1 - 20% taste-mask coating) under fasted conditions

    Subject analysis set title
    Cohort 2, Treatment A
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions

    Subject analysis set title
    Cohort 2, Treatment C
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fasted conditions

    Subject analysis set title
    Cohort 2, Treatment G
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fed conditions

    Subject analysis set title
    Cohorts 1 and 2, Treatment A
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions

    Primary: Pharmacokinetic (PK) Parameter: AUCinf of VEL, GS-331007, SOF, and GS-566500

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    End point title
    Pharmacokinetic (PK) Parameter: AUCinf of VEL, GS-331007, SOF, and GS-566500 [1]
    End point description
    AUCinf is defined as the concentration of drug extrapolated to infinite time. Participants in the PK Analysis Set (all randomized participants who took at least 1 dose of study drug and had at least 1 nonmissing postdose concentration value reported for the corresponding analyte) with available data were analyzed.
    End point type
    Primary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    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: The statistical analysis of this primary endpoint is provided in the attachment.
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56 [2]
    56
    Units: h*ng/mL
    arithmetic mean (standard deviation)
        VEL
    4294.8 ± 1592.02
    2991.7 ± 1389.73
    4113.1 ± 2552.71
    3782.7 ± 2117.47
    3957.5 ± 1742.21
        GS-331007
    12396.5 ± 2502.62
    11864.5 ± 2691.27
    11721.6 ± 2856.44
    11910.3 ± 2656.29
    12341.7 ± 2707.27
        SOF
    1938.6 ± 515.08
    1287.8 ± 488.60
    1744.5 ± 946.53
    1640.4 ± 725.66
    2523.7 ± 903.08
        GS-566500
    2174.8 ± 482.64
    1626.1 ± 521.60
    1968.8 ± 720.73
    1917.2 ± 665.94
    2777.5 ± 516.80
    Attachments
    Statistical Comparisons
    Notes
    [2] - For SOF, only 54 participants were included.
    No statistical analyses for this end point

    Primary: PK Parameter: AUClast of VEL, GS-331007, SOF, and GS-566500

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    End point title
    PK Parameter: AUClast of VEL, GS-331007, SOF, and GS-566500 [3]
    End point description
    AUClast is defined as the concentration of drug from time zero to the last observable concentration. Participants in the PK Analysis Set were analyzed.
    End point type
    Primary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    Notes
    [3] - 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: The statistical analysis of this primary endpoint is provided in the attachment.
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56
    56
    Units: h*ng/mL
    arithmetic mean (standard deviation)
        VEL
    4250.9 ± 1584.23
    2951.8 ± 1378.59
    4068.8 ± 2539.06
    3740.3 ± 2111.97
    3906.8 ± 1717.54
        GS-331007
    11822.5 ± 2487.44
    11264.0 ± 2623.87
    11077.1 ± 2841.00
    11315.9 ± 2699.62
    11678.3 ± 2564.27
        SOF
    1924.9 ± 514.38
    1255.7 ± 458.62
    1730.4 ± 943.58
    1598.3 ± 728.94
    2494.5 ± 901.25
        GS-566500
    2120.5 ± 475.68
    1575.7 ± 514.86
    1912.3 ± 712.23
    1868.2 ± 661.38
    2719.5 ± 515.94
    Attachments
    Statistical Comparisons
    No statistical analyses for this end point

    Primary: PK Parameter: Cmax of VEL, GS-331007, SOF, and GS-566500

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    End point title
    PK Parameter: Cmax of VEL, GS-331007, SOF, and GS-566500 [4]
    End point description
    Cmax is defined as the maximum concentration of drug. Participants in the PK Analysis Set were analyzed.
    End point type
    Primary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    Notes
    [4] - 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: The statistical analysis of this primary endpoint is provided in the attachment.
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56
    56
    Units: ng/mL
    arithmetic mean (standard deviation)
        VEL
    533.9 ± 194.58
    359.2 ± 144.92
    497.3 ± 287.90
    476.5 ± 247.46
    407.1 ± 133.36
        GS-331007
    944.3 ± 309.05
    1105.0 ± 303.95
    910.3 ± 265.68
    988.2 ± 241.28
    621.9 ± 126.46
        SOF
    1558.1 ± 500.39
    906.6 ± 394.83
    1474.6 ± 736.18
    1171.8 ± 525.01
    1194.1 ± 513.66
        GS-566500
    548.7 ± 121.54
    395.6 ± 123.23
    491.8 ± 192.16
    468.8 ± 166.42
    530.1 ± 112.28
    Attachments
    Statistical Comparisons
    No statistical analyses for this end point

    Secondary: Percentage of Participants Experiencing Any Treatment-Emergent Adverse Event

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    End point title
    Percentage of Participants Experiencing Any Treatment-Emergent Adverse Event
    End point description
    Safety Analysis Set included all participants who took at least 1 dose of study drug. Participants were grouped according to the treatment they received.
    End point type
    Secondary
    End point timeframe
    Up to Day 19 plus 30 days
    End point values
    Cohort 1, Treatment B Cohort 2, Treatment C Cohort 2, Treatment G Cohorts 1 and 2, Treatment A
    Number of subjects analysed
    56
    56
    56
    112
    Units: percentage of participants
        number (not applicable)
    1.8
    5.4
    3.6
    7.1
    No statistical analyses for this end point

    Secondary: Percentage of Participants Experiencing Grade 3 or 4 Laboratory Abnormalities

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    End point title
    Percentage of Participants Experiencing Grade 3 or 4 Laboratory Abnormalities
    End point description
    Participants in the Safety Analysis Set with available data were analyzed.
    End point type
    Secondary
    End point timeframe
    Up to Day 19 plus 30 days
    End point values
    Cohort 1, Treatment B Cohort 2, Treatment C Cohort 2, Treatment G Cohorts 1 and 2, Treatment A
    Number of subjects analysed
    56
    56
    56
    112
    Units: percentage of participants
    number (not applicable)
        Grade 3
    1.8
    1.8
    1.8
    2.7
        Grade 4
    0
    0
    0
    0
    No statistical analyses for this end point

    Secondary: Palatability of SOF/VEL

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    End point title
    Palatability of SOF/VEL
    End point description
    The percentage of participants who rated the taste of each treatment as palatable are presented. Participants in the Safety Analysis Set with available data were analyzed.
    End point type
    Secondary
    End point timeframe
    Up to Day 19
    End point values
    Cohort 1, Treatment B Cohort 2, Treatment C Cohort 2, Treatment G Cohorts 1 and 2, Treatment A
    Number of subjects analysed
    56
    56
    56
    112 [5]
    Units: percentage of participants
        number (not applicable)
    96.4
    85.7
    92.9
    81.3
    Notes
    [5] - Note: Data was missing for 14 participants in this group.
    No statistical analyses for this end point

    Secondary: PK Parameter: Tmax of VEL, GS-331007, SOF, and GS-566500

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    End point title
    PK Parameter: Tmax of VEL, GS-331007, SOF, and GS-566500
    End point description
    Tmax is defined as the time (observed time point) of Cmax. Participants in the PK Analysis Set were analyzed.
    End point type
    Secondary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56
    56
    Units: hours
    median (inter-quartile range (Q1-Q3))
        VEL
    1.00 (0.5 to 1.50)
    1.50 (1.00 to 2.00)
    0.77 (0.50 to 1.00)
    1.00 (0.50 to 1.50)
    2.00 (1.50 to 2.00)
        GS-331007
    3.00 (2.00 to 3.00)
    3.00 (2.50 to 4.00)
    3.00 (2.00 to 4.00)
    2.50 (2.00 to 3.00)
    4.00 (4.00 to 4.00)
        SOF
    1.00 (0.50 to 1.50)
    1.50 (1.00 to 2.00)
    0.77 (0.50 to 1.00)
    1.00 (0.50 to 1.50)
    2.00 (1.50 to 2.00)
        GS-566500
    1.50 (1.25 to 2.00)
    2.00 (1.76 to 3.00)
    2.00 (1.00 to 2.00)
    2.00 (1.50 to 3.00)
    3.00 (2.00 to 4.00)
    No statistical analyses for this end point

    Secondary: PK Parameter: Clast of VEL, GS-331007, SOF, and GS-566500

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    End point title
    PK Parameter: Clast of VEL, GS-331007, SOF, and GS-566500
    End point description
    Clast is defined as the last observable concentration of drug. Participants in the PK Analysis Set were analyzed.
    End point type
    Secondary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56
    56
    Units: ng/mL
    arithmetic mean (standard deviation)
        VEL
    1.82 ± 0.545
    1.70 ± 0.639
    1.79 ± 0.769
    1.79 ± 0.554
    1.88 ± 0.929
        GS-331007
    14.27 ± 2.924
    14.35 ± 2.920
    15.52 ± 4.308
    14.68 ± 3.544
    15.58 ± 4.071
        SOF
    20.64 ± 17.937
    30.78 ± 54.399
    20.87 ± 17.442
    23.33 ± 19.756
    32.88 ± 37.844
        GS-566500
    18.10 ± 5.043
    16.90 ± 4.372
    18.94 ± 5.778
    16.67 ± 4.123
    17.46 ± 6.649
    No statistical analyses for this end point

    Secondary: PK Parameter: Tlast of VEL, GS-331007, SOF, and GS-566500

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    End point title
    PK Parameter: Tlast of VEL, GS-331007, SOF, and GS-566500
    End point description
    Tlast is defined as the time (observed time point) of Clast. Participants in the PK Analysis Set were analyzed.
    End point type
    Secondary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56
    56
    Units: hours
    median (inter-quartile range (Q1-Q3))
        VEL
    96.00 (72.00 to 120.00)
    72.00 (72.00 to 96.00)
    96.00 (72.00 to 120.00)
    96.00 (72.00 to 96.00)
    96.00 (72.00 to 120.00)
        GS-331007
    96.01 (96.00 to 120.00)
    96.00 (96.00 to 108.00)
    96.00 (96.00 to 120.00)
    96.00 (96.00 to 120.00)
    120.00 (120.00 to 120.00)
        SOF
    4.00 (4.00 to 4.00)
    4.00 (4.00 to 4.00)
    4.00 (3.50 to 4.00)
    4.00 (4.00 to 4.00)
    6.00 (5.00 to 8.00)
        GS-566500
    12.00 (12.00 to 12.00)
    12.00 (12.00 to 12.00)
    12.00 (10.00 to 12.00)
    12.00 (12.00 to 12.00)
    16.00 (16.00 to 16.00)
    No statistical analyses for this end point

    Secondary: PK Parameter: t1/2 of VEL, GS-331007, SOF, and GS-566500

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    End point title
    PK Parameter: t1/2 of VEL, GS-331007, SOF, and GS-566500
    End point description
    t1/2 is defined as the estimate of the terminal elimination half-life of the drug. Participants in the PK Analysis Set were analyzed.
    End point type
    Secondary
    End point timeframe
    Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16, 24, 48, 72, 96 and 120 hours postdose on Days 1 and 10 (all cohorts) and Day 19 (Cohorts 2)
    End point values
    Cohort 1, Treatment A Cohort 1, Treatment B Cohort 2, Treatment A Cohort 2, Treatment C Cohort 2, Treatment G
    Number of subjects analysed
    56
    56
    56
    56
    56
    Units: hours
    median (inter-quartile range (Q1-Q3))
        VEL
    15.47 (13.58 to 19.21)
    15.11 (13.14 to 17.85)
    17.82 (13.11 to 19.98)
    16.54 (13.31 to 19.17)
    17.52 (14.56 to 20.57)
        GS-331007
    27.22 (25.59 to 30.04)
    26.15 (24.33 to 30.15)
    27.82 (24.64 to 31.79)
    26.29 (23.92 to 31.25)
    28.77 (27.00 to 31.14)
        SOF
    0.42 (0.37 to 0.47)
    0.40 (0.36 to 0.45)
    0.44 (0.40 to 0.49)
    0.43 (0.37 to 0.48)
    0.58 (0.49 to 0.67)
        GS-566500
    2.09 (1.99 to 2.16)
    2.07 (1.90 to 2.21)
    2.05 (1.97 to 2.16)
    2.05 (1.92 to 2.20)
    2.33 (2.19 to 2.51)
    No statistical analyses for this end point

    Adverse events

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    Adverse events information [1]
    Timeframe for reporting adverse events
    Up to Day 19 plus 30 days
    Adverse event reporting additional description
    Safety Analysis Set included all participants who took at least 1 dose of study drug. Participants were grouped according to the treatment they received.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    20.1
    Reporting groups
    Reporting group title
    Cohorts 1 and 2, Treatment A
    Reporting group description
    Single dose of SOF/VEL (400/100 mg tablet) under fasted conditions

    Reporting group title
    Cohort 1, Treatment B
    Reporting group description
    Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC1 - 20% taste-mask coating) under fasted conditions

    Reporting group title
    Cohort 2, Treatment C
    Reporting group description
    Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fasted conditions

    Reporting group title
    Cohort 2, Treatment G
    Reporting group description
    Single dose of SOF/VEL (8 x 50/12.5 mg oral granules; FDC2 - 5% taste-mask coating) under fed conditions

    Serious adverse events
    Cohorts 1 and 2, Treatment A Cohort 1, Treatment B Cohort 2, Treatment C Cohort 2, Treatment G
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 112 (0.00%)
    0 / 56 (0.00%)
    0 / 56 (0.00%)
    0 / 56 (0.00%)
         number of deaths (all causes)
    0
    0
    0
    0
         number of deaths resulting from adverse events
    0
    0
    0
    0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Cohorts 1 and 2, Treatment A Cohort 1, Treatment B Cohort 2, Treatment C Cohort 2, Treatment G
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    0 / 112 (0.00%)
    0 / 56 (0.00%)
    0 / 56 (0.00%)
    0 / 56 (0.00%)
    Notes
    [1] - There are no non-serious adverse events recorded for these results. It is expected that there will be at least one non-serious adverse event reported.
    Justification: None of the treatment-emergent nonserious AEs occurred in at least 5% of participants of any of the treatment arms.

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? No

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    None reported
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