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    Clinical Trial Results:
    Phase 2 Study of the Safety, Efficacy, and Pharmacokinetics of G1T28 in Patients with Metastatic Triple Negative Breast Cancer Receiving Gemcitabine and Carboplatin Chemotherapy

    Summary
    EudraCT number
    2016-004466-26
    Trial protocol
    BE   SI   HR   BG  
    Global end of trial date
    28 Feb 2020

    Results information
    Results version number
    v1(current)
    This version publication date
    01 Apr 2021
    First version publication date
    01 Apr 2021
    Other versions
    Summary report(s)
    G1T28-04 Clinical Study Report Addendum_Final_15 Dec 2020

    Trial information

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    Trial identification
    Sponsor protocol code
    G1T28-04
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02978716
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    G1 Therapeutics, Inc
    Sponsor organisation address
    700 Park Offices Drive, Suite 200, Research Triangle Park, NC, United States, 27709
    Public contact
    Clinical Trial Info, G1 Therapeutics, Inc, +1 9192139835, clinicalinfo@g1therapeutics.com
    Scientific contact
    Clinical Trial Info, G1 Therapeutics, Inc, +1 9192139835, clinicalinfo@g1therapeutics.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
    09 Dec 2020
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    28 Jun 2019
    Global end of trial reached?
    Yes
    Global end of trial date
    28 Feb 2020
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    Assess the safety and tolerability of trilaciclib administered with GC (gemcitabine and carboplatin) therapy
    Protection of trial subjects
    This study was conducted in full conformance with the ethical principles of the Declaration of Helsinki (as amended in Tokyo, Venice, Hong Kong, and South Africa) or with the laws and regulations of the country in which the research was conducted, whichever afforded the greater protection to the individual. A Data Safety Monitoring Committee (DMC) reviewed safety of trilaciclib for all participants enrolled. DMC monitored accumulating safety and disposition data approximately every 4 months. The committee consisted of individuals with extensive multicenter clinical study experience drawn from the fields of clinical oncology (specifically, TNBC) and biostatistics. These individuals were entirely independent of the conduct of the study.
    Background therapy
    Gemcitabine and Carboplatin (GC) were administered IV in accordance with their respective prescribing information. Subjects received Gemcitabine 1000 mg/m^2 and Carboplatin area under the curve (AUC) = 2 administered IV on Days 1 and 8 (Groups 1 and 2) or on Days 2 and 9 (Group 3) of each 21-day cycle. On chemotherapy dosing days, trilaciclib was always administered first, followed by GC. GC could be administered immediately following trilaciclib but not until the completion of the trilaciclib infusion. Trilaciclib was only administered with GC therapy. If administration of GC therapy was discontinued, administration of trilaciclib was also discontinued
    Evidence for comparator
    -
    Actual start date of recruitment
    02 Feb 2017
    Long term follow-up planned
    Yes
    Long term follow-up rationale
    Safety, Scientific research
    Long term follow-up duration
    2 Months
    Independent data monitoring committee (IDMC) involvement?
    Yes
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    Belgium: 1
    Country: Number of subjects enrolled
    Croatia: 5
    Country: Number of subjects enrolled
    Bulgaria: 1
    Country: Number of subjects enrolled
    United States: 113
    Country: Number of subjects enrolled
    Serbia: 14
    Country: Number of subjects enrolled
    North Macedonia: 8
    Worldwide total number of subjects
    142
    EEA total number of subjects
    7
    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)
    105
    From 65 to 84 years
    36
    85 years and over
    1

    Subject disposition

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    Recruitment
    Recruitment details
    Subjects were enrolled at 27 sites in the US, and 7 sites in Europe (out of total 35 sites in the US and 15 sites in Europe that participated in the trial). The first subject enrolled on 02 February 2017, and the last participant completed on 28 February 2020. Subjects were enrolled from 02 February 2017 to 10 May 2018.

    Pre-assignment
    Screening details
    Subjects were screened within 28 days before the first dose of the treatment. Informed consent was obtained up to 28 days prior to first study drug administration. For tumor assessment, all sites of disease were assessed radiologically at screening. 40 enrolled subjects failed to meet randomization criteria, hence 102 subjects were randomized

    Period 1
    Period 1 title
    Overall Trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Not blinded
    Blinding implementation details
    Open label study.

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Group 1 (G/C Day 1 and 8)
    Arm description
    Subjects receiving standard Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles) only. Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 administered IV. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.
    Arm type
    Active comparator

    Investigational medicinal product name
    Gemcitabine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Powder for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    The dose used for gemcitabine was 1000 mg/m^2. This dose represents the standard-of-care dose used to treat patients with triple negative breast cancer. This drug was commercially available and administered according to the products respective prescribing information.

    Investigational medicinal product name
    Carboplatin
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    The carboplatin dose was to be calculated using the Calvert formula, with a target AUC 2 (maximum of 300 mg). These doses represent the standard-of-care doses used to treat participants with TNBC. This product was commercially available and administered according to respective prescribing information. The Calvert formula was calculated as follows: •Total carboplatin dose (mg) = (target AUC) × (glomerular filtration rate [GFR] + 25) Because each patient’s estimated GFR was based on serum creatinine measurements, the dose of carboplatin was capped at 300 mg to avoid potential toxicity due to overdosing. The cap dose of 300 mg for carboplatin was based on a GFR estimate that was capped at 125 mL/min for patients with normal renal function (ie, maximum carboplatin dose = target AUC of 2 mg•min/mL × 150 mL/min = 300 mg).

    Arm title
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8)
    Arm description
    Subjects receiving Trilaciclib administered IV on Days 1 and 8 of 21-day cycles , plus Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 2, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes prior to each GC treatment (on Days 1 and 8). There were no intrapatient dose modifications of trilaciclib during the study. Trilaciclib was administered only with GC therapy. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.
    Arm type
    Experimental

    Investigational medicinal product name
    Trilaciclib
    Investigational medicinal product code
    G1T28
    Other name
    Pharmaceutical forms
    Powder for concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Trilaciclib (G1T28) Sterile Powder for Infusion was supplied as a sterile powder with 300-mg G1T28 (as the dihydrochloride salt) in a single-use, 30-mL, clear glass vial. D-mannitol (US Pharmacopeia) was added as a cake-forming agent, and citrate buffer was added to maintain the reconstituted pH at 4.0 to 5.0. Sodium hydroxide and/or hydrochloric acid may have been added for pH adjustment during manufacturing. Each vial should have been reconstituted with 30 mL of either dextrose 5% in water or sodium chloride solution 0.9%. The reconstituted solution containing 240 mg/m^2 (10 mg/mL) was subsequently diluted prior to administration by IV infusion. Reconstituted and diluted trilaciclib was administered within 12 hours after preparation at room temperature, by IV infusion over approximately 30 (±5) min. If there was any drug remaining in the infusion bag at the end of the 30 (±5) min, the infusion was continued at the same rate until the entire contents of the bag had been administered.

    Investigational medicinal product name
    Gemcitabine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Powder for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Dosage and administration details the same as reported for Group 1.

    Investigational medicinal product name
    Carboplatin
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Dosage and administration details the same as reported for Group 1.

    Arm title
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Arm description
    Subjects receiving Trilaciclib administered IV on Days 1, 2, 8, and 9 of of 21-day cycles, plus Gemcitabine and Carboplatin therapy (Days 2 and 9 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 3, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes on Days 1, 2, 8, and 9 plus Gemcitabine and Carboplatin therapy which was administered on Days 2 and 9. There were no intrapatient dose modifications of trilaciclib during the study. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.
    Arm type
    Experimental

    Investigational medicinal product name
    Trilaciclib
    Investigational medicinal product code
    G1T28
    Other name
    Pharmaceutical forms
    Powder for concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Dosage and administration details the same as reported for Group 2.

    Investigational medicinal product name
    Carboplatin
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Dosage and administration details the same as reported for Group 1.

    Investigational medicinal product name
    Gemcitabine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Powder for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Dosage and administration details the same as reported for Group 1.

    Number of subjects in period 1 [1]
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Started
    34
    33
    35
    Treated
    30
    33
    35
    Completed
    0
    0
    0
    Not completed
    34
    33
    35
         Consent withdrawn by subject
    6
    4
    5
         Other
    1
    3
    -
         Death
    25
    13
    20
         Lost to follow-up
    -
    -
    1
         Sponsor terminated study
    2
    13
    9
    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: 142 subjects were enrolled, however there were 40 screen failures prior to randomization. Therefore 102 subjects were randomized 1:1:1, leading to the disposition as captured in baseline period: 34 subjects in Group 1, 33 subjects in Group 2 and 35 subjects in Group 3.

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Group 1 (G/C Day 1 and 8)
    Reporting group description
    Subjects receiving standard Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles) only. Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 administered IV. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Reporting group title
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8)
    Reporting group description
    Subjects receiving Trilaciclib administered IV on Days 1 and 8 of 21-day cycles , plus Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 2, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes prior to each GC treatment (on Days 1 and 8). There were no intrapatient dose modifications of trilaciclib during the study. Trilaciclib was administered only with GC therapy. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Reporting group title
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Reporting group description
    Subjects receiving Trilaciclib administered IV on Days 1, 2, 8, and 9 of of 21-day cycles, plus Gemcitabine and Carboplatin therapy (Days 2 and 9 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 3, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes on Days 1, 2, 8, and 9 plus Gemcitabine and Carboplatin therapy which was administered on Days 2 and 9. There were no intrapatient dose modifications of trilaciclib during the study. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Reporting group values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) Total
    Number of subjects
    34 33 35 102
    Age categorical
    Units: Subjects
        75 years and over
    2 2 0 4
        From 65 -75 years
    6 7 9 22
        From 18-65 years
    26 24 26 76
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    55 ( 13.6 ) 56 ( 12.1 ) 58 ( 9.5 ) -
    Gender categorical
    Units: Subjects
        Female
    34 32 35 101
        Male
    0 1 0 1
    Race
    Units: Subjects
        White
    28 22 28 78
        Black or African American
    5 7 2 14
        Asian
    0 2 4 6
        Other
    1 2 1 4
    Ethnicity
    Units: Subjects
        Hispanic or Latino
    2 5 2 9
        Not Hispanic or Latino
    32 28 33 93
    Country
    Units: Subjects
        USA
    28 28 27 83
        Non-USA
    6 5 8 19
    ECOG stratification (derived)
    ECOG = eastern cooperative oncology group; Where not collected on the randomization page, values were derived from other eCRF pages
    Units: Subjects
        Grade 0
    15 17 21 53
        Grade 1
    19 16 14 49
    Number of prior lines of therapy (derived)
    where not collected on the randomisation page, values were derived from other eCRF pages
    Units: Subjects
        None
    21 22 21 64
        1 or 2
    13 11 14 38
    Number of prior lines of therapy (eCRF)
    Units: Subjects
        None
    18 19 17 54
        One
    11 11 14 36
        Two
    5 3 4 12
    Liver involvement
    Units: Subjects
        Yes
    8 8 10 26
        No
    26 25 25 76
    Smoking history
    Units: Subjects
        Never Smoked
    24 24 25 73
        Former Smokers
    9 9 8 26
        Current Smokers
    1 0 2 3
    Body Weight
    Units: kg
        arithmetic mean (standard deviation)
    76.8 ( 17.48 ) 72.1 ( 15.60 ) 72.9 ( 15.48 ) -
    Height
    Units: cm
        arithmetic mean (standard deviation)
    162.6 ( 7.19 ) 163.2 ( 8.09 ) 162.6 ( 8.03 ) -
    BMI
    Body Mass Index is calculated as [weight (kg)]/ [height (m)]^2.
    Units: kg/m^2
        arithmetic mean (standard deviation)
    28.97 ( 5.962 ) 27.07 ( 5.708 ) 27.47 ( 5.028 ) -
    Body Surface Area
    BSA is computed using DuBois-DuBois formula as 0.20247 × [height (m)]^0.725 x [weight (kg)]^0.425
    Units: m^2
        arithmetic mean (standard deviation)
    1.81 ( 0.199 ) 1.77 ( 0.194 ) 1.77 ( 0.202 ) -

    End points

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    End points reporting groups
    Reporting group title
    Group 1 (G/C Day 1 and 8)
    Reporting group description
    Subjects receiving standard Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles) only. Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 administered IV. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Reporting group title
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8)
    Reporting group description
    Subjects receiving Trilaciclib administered IV on Days 1 and 8 of 21-day cycles , plus Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 2, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes prior to each GC treatment (on Days 1 and 8). There were no intrapatient dose modifications of trilaciclib during the study. Trilaciclib was administered only with GC therapy. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Reporting group title
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Reporting group description
    Subjects receiving Trilaciclib administered IV on Days 1, 2, 8, and 9 of of 21-day cycles, plus Gemcitabine and Carboplatin therapy (Days 2 and 9 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 3, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes on Days 1, 2, 8, and 9 plus Gemcitabine and Carboplatin therapy which was administered on Days 2 and 9. There were no intrapatient dose modifications of trilaciclib during the study. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Primary: Duration of severe (Grade 4) neutropenia in Cycle 1

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    End point title
    Duration of severe (Grade 4) neutropenia in Cycle 1
    End point description
    Duration of severe neutropenia (DSN) was defined as the number of days from the date of the first absolute neutrophil count (ANC) value of <0.5 × 10^9 cells/L observed between Day 1 Cycle X and the end of Cycle X to the date of the first ANC value ≥0.5 × 10^9/L that met the following: (1) occurred after the ANC value of <0.5 × 10^9 cells/L and (2) no other ANC values <0.5 × 10^9 cells/L occurred between this day and the end of Cycle X. DSN is set to 0 for patients who did not experience SN in Cycle X, including those who were randomized but never treated. A 2-sided p-value was calculated for the nonparametric ANCOVA. The nonparametric ANCOVA included the study baseline ANC value as a covariate, with the stratification factors of lines of systemic therapy (0 vs 1 or 2) and liver involvement (Yes vs No) and treatment as fixed effects.
    End point type
    Primary
    End point timeframe
    From patient randomization to the end of the Cycle 1
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: days
    arithmetic mean (standard deviation)
        Duration of severe neutropenia in Cycle 1 (days)
    1 ( 2.2 )
    2 ( 3.5 )
    1 ( 2.6 )
    Statistical analysis title
    Duration of SN in Cycle 1 in Group 3 vs Group 1
    Statistical analysis description
    Model-based point estimates for treatment effect, together with their 95% CIs, were presented along with the 2-sided p-values for the tests except for the analyses where the multiplicity adjustment was applied, in which 1-sided p-values were reported for the primary comparison conducted between Group 3 and Group 1.
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.7048 [1]
    Method
    ANCOVA
    Parameter type
    Mean difference (Group 3 – Group 1)
    Point estimate
    0.3
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    -0.8
         upper limit
    1.5
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.58
    Notes
    [1] - The 1-sided p-value was calculated using a nonparametric ANCOVA.
    Statistical analysis title
    Duration of SN in Cycle 1 in Group 2 vs Group 1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.3364
    Method
    ANCOVA
    Parameter type
    Mean difference (Group 2 – Group 1)
    Point estimate
    0.8
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    -0.6
         upper limit
    2.3
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.71

    Primary: Occurrence of severe (Grade 4) neutropenia

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    End point title
    Occurrence of severe (Grade 4) neutropenia
    End point description
    The occurrence of SN, is a binary response variable (Yes, No). It was summarized using descriptive statistics by treatment group and was analyzed to compare a trilaciclib group and GC only using modified Poisson regression to account for the variable duration of the treatment period for each patient. The model included baseline ANC as a covariate, with the stratification factors of prior lines of systemic therapy (0 versus 1 or 2) and liver involvement (Yes versus No) and treatment as fixed effects. The logarithm transformation of the number of cycles was included as an offset variable in the modeling. The 2-sided p-value is calculated using stratified exact CMH method to account for the number of prior lines of therapy (0 versus 1 - 2) and liver involvement as the stratification factors.
    End point type
    Primary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    9
    12
    8
    Statistical analysis title
    Occurrence of SN in Group 3 vs Group 1
    Statistical analysis description
    Model-based point estimates for treatment effect, together with their 95% CIs, were presented along with the 2-sided p-values for the tests except for the analyses where the multiplicity adjustment was applied, in which 1-sided p-values were reported for the primary comparison conducted between Group 3 and Group 1.
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.2382 [2]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.776
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.386
         upper limit
    1.559
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.2762
    Notes
    [2] - The 1-sided p-value was calculated using a modified Poisson regression.
    Statistical analysis title
    Occurrence of SN in Group 2 vs Group 1
    Statistical analysis description
    Model-based point estimates for treatment effect, together with their 95% CIs, were presented along with the 2-sided p-values for the tests except for the analyses where the multiplicity adjustment was applied, in which 1-sided p-values were reported for the primary comparison conducted between Group 3 and Group 1.
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.3133
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.961
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.457
         upper limit
    2.019
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.364

    Secondary: Occurrence of best overall response

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    End point title
    Occurrence of best overall response
    End point description
    For all patients, the RECIST v1.1 tumor response data were used to determine each patient’s visit response (time point response [TPR]) according to RECIST v1.1 and the BOR. The TPR at each visit was determined in 2 ways: (1) derived programmatically at the time of analysis using the information from target lesions, non-target lesions, and new lesions based on data collected through eCRF; and (2) judged by the investigator as collected in the eCRF. Objective response rate (ORR:CR + PR) was calculated using a strict interpretation of RECIST v1.1. The analyses are based on the response evaluable analysis set.
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    24
    30
    31
    Units: Number of patients
        Complete response (CR)
    0
    0
    0
        Partial response (PR)
    7
    15
    11
        Stable disease (SD)
    11
    9
    15
        Progressive disease (PD)
    6
    5
    3
        Not evaluable (NE)
    0
    0
    1
        Unconfirmed CR
    0
    0
    0
        Unconfirmed PR
    1
    1
    7
        Objective response rate (ORR:CR + PR)
    7
    15
    11
    No statistical analyses for this end point

    Secondary: Duration of objective response (CR or PR per RECIST v1.1 as assessed by investigator)

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    End point title
    Duration of objective response (CR or PR per RECIST v1.1 as assessed by investigator)
    End point description
    Duration of Response (DOR) is the time between first response by RECIST Version 1.1 of CR or PR and the first date that progressive disease is documented by RECIST Version 1.1, or death. Patients who do not experience PD or death will be censored at the last tumor assessment date. Only those patients with confirmed responses will be included in this analysis Confidence Interval Calculated using the Kaplan-Meier method Not evaluable: 999999 The analyses are based on the response evaluable analysis set.
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    24
    30
    31
    Units: months
    arithmetic mean (confidence interval 95%)
        Duration of response (months) - 25%
    7.5 (5.1 to 7.8)
    6.3 (3.2 to 12.5)
    9.6 (4.2 to 9.6)
        Duration of response (months) - Median
    7.8 (5.1 to 999999)
    12.5 (4.8 to 17.8)
    9.6 (4.2 to 12.6)
        Duration of response (months) - 75%
    999999 (5.1 to 999999)
    17.8 (7.6 to 17.8)
    12.0 (9.6 to 12.6)
    No statistical analyses for this end point

    Secondary: Overall survival

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    End point title
    Overall survival
    End point description
    Overall survival is calculated as the time (months) from date of randomization to the date of death due to any cause. Patients who do not die during the study will be censored at the date last known to be alive. Patients lacking data beyond the date of randomization will have their survival time censored at date of randomization. OS will not be censored if a patient receives other anti-tumor treatments after the study drugs. OS was analyzed with Kaplan-Meier method and summarized with median, 25 and 75 percentiles, survival rates at 3, 6, 9, and 12 months along with 95% confidence intervals (CI). The HR and its 95% CI were calculated using the Cox regression model with treatment and stratification factors (SF) of number of prior lines of therapy (0 vs 1 or 2) and liver involvement. p-value was calculated using the stratified log-rank test to account for the no. of prior lines of therapy (0 vs 1 or 2) and liver involvement as SF. Values which are not evaluable represented as 99999.
    End point type
    Secondary
    End point timeframe
    From randomization until the Final Database Lock (data cutoff date 17 Jul 2020)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: months
    arithmetic mean (confidence interval 95%)
        Probability of being alive (95% CI) at 3 months
    0.90 (0.73 to 0.97)
    0.97 (0.80 to 1.00)
    1.00 (1.00 to 1.00)
        Probability of being alive (95% CI) at 6 months
    0.73 (0.53 to 0.85)
    0.81 (0.62 to 0.91)
    0.91 (0.75 to 0.97)
        Probability of being alive (95% CI) at 9 months
    0.62 (0.42 to 0.77)
    0.77 (0.58 to 0.88)
    0.72 (0.53 to 0.84)
        Probability of being alive (95% CI) at 12 months
    0.50 (0.31 to 0.67)
    0.69 (0.49 to 0.83)
    0.72 (0.53 to 0.84)
        Overall survival (months) - 25%
    5.8 (2.8 to 9.7)
    9.4 (3.4 to 19.6)
    8.8 (6.0 to 15.3)
        Overall survival (months) - Median
    12.6 (6.3 to 15.6)
    99999 (10.2 to 99999)
    17.8 (12.9 to 32.7)
        Overall survival (months) - 75%
    17.8 (12.8 to 25.0)
    99999 (99999 to 99999)
    32.7 (19.8 to 99999)
    Statistical analysis title
    Overall Survival in Group 3 vs Group 1
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.0004
    Method
    Regression, Cox
    Parameter type
    Hazard ratio (HR)
    Point estimate
    0.4
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.22
         upper limit
    0.74
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.125
    Statistical analysis title
    Overall Survival in Group 2 vs Group 1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.0016
    Method
    Regression, Cox
    Parameter type
    Hazard ratio (HR)
    Point estimate
    0.31
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.15
         upper limit
    0.63
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.111

    Secondary: Progression-free survival (per RECIST v1.1 as assessed by investigator)

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    End point title
    Progression-free survival (per RECIST v1.1 as assessed by investigator)
    End point description
    Progression-free survival (PFS) was defined as the time (number of months) from date of randomization until date of documented radiologic disease progression per RECIST v1.1 or death due to any cause, whichever came first. OPFS was analyzed with Kaplan-Meier method and summarized with median, 25% and 75% percentiles, survival rates at 3, 6, 9, and 12 months along with 95% confidence intervals (CI). Values which are not evaluable are represented as 99999.
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: months
    arithmetic mean (confidence interval 95%)
        Probability of being progression free at 3 months
    0.72 (0.52 to 0.85)
    0.81 (0.62 to 0.91)
    0.88 (0.70 to 0.95)
        Probability of being progression free at 6 months
    0.49 (0.28 to 0.67)
    0.72 (0.51 to 0.85)
    0.75 (0.55 to 0.88)
        Probability of being progression free at 9 months
    0.42 (0.21 to 0.62)
    0.53 (0.31 to 0.70)
    0.44 (0.23 to 0.64)
        Probability of being progression free at 12 months
    0.17 (0.03 to 0.40)
    0.26 (0.10 to 0.46)
    0.38 (0.17 to 0.58)
        Progression Free Survival (months) - 25%
    2.2 (1.2 to 5.4)
    5.3 (1.2 to 7.9)
    6.2 (1.2 to 7.1)
        Progression Free Survival (months) - Median
    5.7 (3.3 to 9.2)
    9.4 (6.1 to 11.9)
    7.3 (6.2 to 13.9)
        Progression Free Survival (months) - 75%
    9.9 (8.3 to 99999)
    13.0 (9.7 to 20.1)
    13.9 (9.0 to 99999)
    No statistical analyses for this end point

    Secondary: Relative dose intensity of gemcitabine and carboplatin

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    End point title
    Relative dose intensity of gemcitabine and carboplatin
    End point description
    Relative dose intensity was defined as 100% times the actual dose intensity divided by the planned dose intensity. The planned dose intensity was defined as the cumulative planned dose through the study divided by (number of cycles×3 weeks).
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: Relative dose intensity (%)
    arithmetic mean (standard deviation)
        Carboplatin
    77.5 ( 19.2 )
    79.1 ( 15.88 )
    81.7 ( 16.09 )
        Gemcitabine
    79.1 ( 18.29 )
    80.8 ( 12.51 )
    81.0 ( 14.49 )
    No statistical analyses for this end point

    Secondary: Duration of exposure

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    End point title
    Duration of exposure
    End point description
    Duration of exposure (days) = First dose date of study drug from the last cycle – first dose date of study drug + 21.
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: day
        arithmetic mean (standard deviation)
    139 ( 109.1 )
    193 ( 149.0 )
    173 ( 107.3 )
    No statistical analyses for this end point

    Secondary: Number of cycles received

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    End point title
    Number of cycles received
    End point description
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: number of cycle
        arithmetic mean (standard deviation)
    6 ( 5.0 )
    9 ( 6.6 )
    8 ( 4.8 )
    No statistical analyses for this end point

    Secondary: Cumulative dose of gemcitabine

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    End point title
    Cumulative dose of gemcitabine
    End point description
    Chemotherapy Exposure Endpoint Sum of the total doses by cycle (mg/m2) administered to a patient in the duration of exposure, i.e. total number of cycles received [(mg/m2)]
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: mg/m^2
    arithmetic mean (standard deviation)
        Gemcitabine
    10694.3 ( 9029.11 )
    14680.9 ( 11557.90 )
    13277.2 ( 8722.51 )
    No statistical analyses for this end point

    Secondary: Cumulative dose of carboplatin

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    End point title
    Cumulative dose of carboplatin
    End point description
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: AUC
        arithmetic mean (standard deviation)
    20.3 ( 16.47 )
    27.8 ( 21.21 )
    26.0 ( 16.33 )
    No statistical analyses for this end point

    Secondary: Occurrence of Grade 3 and 4 hematologic laboratory values

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    End point title
    Occurrence of Grade 3 and 4 hematologic laboratory values
    End point description
    The occurrence of Grade 3 and 4 hematologic toxicities was a binary endpoint. If a patient had at least 1 cycle with at least one Grade 3 or 4 hematologic toxicities during the treatment period, the patient was assigned as Yes to the occurrence of Grade 3 and 4 hematologic toxicities; otherwise, it was No. If a patient did not have an event, the value of 0 was assigned to that patient.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    25
    30
    27
    No statistical analyses for this end point

    Secondary: Occurrence of Grade 3 or 4 thrombocytopenia, i.e. decreased platelet count

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    End point title
    Occurrence of Grade 3 or 4 thrombocytopenia, i.e. decreased platelet count
    End point description
    Occurrence of Grade 3 or 4 thrombocytopenia, i.e. decreased platelet count is a subset of Occurrence of Grade 3 and 4 hematologic laboratory values. Thus refer to the endpoint Occurrence of Grade 3 and 4 hematologic laboratory values.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    21
    12
    19
    No statistical analyses for this end point

    Secondary: A composite (MAHE) endpoint defined to include the following: all-cause hospitalizations, all-cause dose reductions, febrile neutropenia, RBC transfusions on/after Week 5, prolonged severe neutropenia (duration >5 days), platelet transfusions

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    End point title
    A composite (MAHE) endpoint defined to include the following: all-cause hospitalizations, all-cause dose reductions, febrile neutropenia, RBC transfusions on/after Week 5, prolonged severe neutropenia (duration >5 days), platelet transfusions
    End point description
    A composite endpoint referred to as MAHE incorporates the measurement of several clinically meaningful aspects of myelosuppression into a single endpoint by summing of the total number of events across a set of pre-specified components. The event level data for each individual component was also summarized. The components were as follows: All-cause hospitalizations; All-cause dose reductions: Dose (mg/m2) reductions were not permitted for trilaciclib. Dose reductions for gemcitabine or carboplatin were collected on the dosing page; Febrile Neutropenia; Prolonged Severe Neutropenia: Each cycle with a duration of SN > 5 days was counted as an event; RBC transfusion on/after Week 5; Platelet transfusion. The adjusted rate ratio (trilaciclib - GC only), its 95% CI, and p-value are calculated using negative binomial method adjusting for duration of treatment in the window in weeks, accounting for the number of prior lines of therapy (0vs1-2) and liver involvement as stratification factor
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: event rate
    number (not applicable)
        All-cause hospitalizations, event rate (per week)
    0.023
    0.014
    0.005
        All-cause dose reductions, event rate (per cycle)
    0.141
    0.118
    0.133
        Febrile neutropenia TEAEs, event rate (per week)
    0.002
    0.001
    0.000
        RBC transfusions on/after Week 5, e.r. (per week)
    0.046
    0.019
    0.016
        Platelet transfusions, event rate (per week)
    0.019
    0.004
    0.012
        Prolonged SN (>5 days), event rate (per cycle)
    0.071
    0.105
    0.022
        MAHE composite, event rate (per week)
    0.153
    0.108
    0.080
    Statistical analysis title
    MAHE composite endpoint in Group 3 vs Group 1
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.0091 [3]
    Method
    Negative binomial regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.49
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.271
         upper limit
    0.885
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.148
    Notes
    [3] - One-sided p-value is calculated using a negative binomial regression.
    Statistical analysis title
    MAHE composite endpoint in Group 2 vs Group 1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.2056
    Method
    Negative binomial regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.686
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.383
         upper limit
    1.23
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.2043

    Secondary: Occurrence of infection SAEs

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    End point title
    Occurrence of infection SAEs
    End point description
    The occurrence during the treatment period was defined as a binary variable (Yes or No); Yes if total number of events ≥1 was observed, No for other scenarios. If a patient did not have an event, the value of 0 was assigned to that patient. The criterion for identifying the proper infection SAE records was as follows: If the system organ class (SOC) from Medical Dictionary for Regulatory Activities (MedDRA) takes value “INFECTIONS AND INFESTATIONS,” and the AE was a serious event. Any occurrence of infection SAE during the treatment period. Treatment period was defined as the duration from the date of first dose of study drug up to 30 days after the start of study drug in the last cycle.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    2
    0
    0
    No statistical analyses for this end point

    Secondary: Occurrence of platelet transfusions

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    End point title
    Occurrence of platelet transfusions
    End point description
    The occurrence during the treatment period was defined as a binary variable (Yes or No); Yes if the total number of events ≥1 was observed and No for other scenarios. If a patient did not have an event, the value of 0 will be assigned to that patient. Each platelet transfusion with a unique start date during the treatment period was defined as a separate event The adjusted rate ratio (Treatment Group versus Group 1) and its 95% CI are calculated using modified Poisson method adjusting for duration of treatment in days, accounting for the number of prior lines of therapy (0 versus 1 - 2) and liver involvement as the stratification factors and baseline platelet count as a covariate.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    4
    3
    6
    Statistical analysis title
    Occurrence of platelet trans in Group 3 vs Group 1
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.4924 [4]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.988
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.294
         upper limit
    3.317
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.6105
    Notes
    [4] - The 1-sided p-value was calculated using a modified Poisson regression.
    Statistical analysis title
    Occurrence of platelet trans in Group 2 vs Group 1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.8518 [5]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.527
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.116
         upper limit
    2.399
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.4077
    Notes
    [5] - The 2-sided p-value is calculated using stratified exact CMH method to account for the number of prior lines of therapy (0 versus 1 or 2) and liver involvement as the stratification factors

    Secondary: Occurrence of granulocyte colony-stimulating factor administration

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    End point title
    Occurrence of granulocyte colony-stimulating factor administration
    End point description
    The occurrence during the treatment period was defined as a binary variable (Yes or No); Yes if the total number of events ≥1 was observed and No for other scenarios. If a patient did not have an event, the value of 0 will be assigned to that patient. The criterion for selecting proper records is as follows: If the chemical subgroup from the World Health Organization-Drug Dictionary (WHO-DD) Version Sep2017 (ie, TEXT4 for CODE4) takes value “COLONY STIMULATING FACTOR,” the medication was classified as G-CSF. The adjusted rate ratio (Treatment Group versus Group 1) and its 95% CI are calculated using modified Poisson method adjusting for number of cycles, accounting for the number of prior lines of therapy (0 versus 1 - 2) and liver involvement as the stratification factors and baseline ANC as a covariate.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    16
    21
    14
    Statistical analysis title
    G-SCF administration in Group 3 vs Group 1
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.0685 [6]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.645
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.362
         upper limit
    1.15
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.1902
    Notes
    [6] - The 1-sided p-value was calculated using a modified Poisson regression.
    Statistical analysis title
    G-SCF administration in Group 2 vs Group 1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.148 [7]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.936
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.583
         upper limit
    1.502
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.226
    Notes
    [7] - The 2-sided p-value is calculated using stratified exact CMH method to account for the number of prior lines of therapy (0 versus 1 or 2) and liver involvement as the stratification factors

    Secondary: Occurrence of erythropoiesis stimulating agent administration

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    End point title
    Occurrence of erythropoiesis stimulating agent administration
    End point description
    The occurrence during the treatment period was defined as a binary variable (Yes or No); Yes if total number of events ≥1 was observed, No for other scenarios. If a patient did not have an event, the value of 0 was assigned to that patient. The criterion to select proper records was as follows: If the chemical subgroup from WHO-DD Version September 2017 (ie, TEXT4 for CODE4) takes value “OTHER ANTIANEMIC PREPARATIONS”, the medication was classified as ESAs.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    4
    2
    3
    No statistical analyses for this end point

    Secondary: Occurrence of intravenous antibiotics use

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    End point title
    Occurrence of intravenous antibiotics use
    End point description
    The occurrence during the treatment period was defined as a binary variable (Yes or No); Yes if total number of events ≥1 was observed, No for other scenarios. If a patient did not have an event, the value of 0 was assigned to that patient. The criteria for identifying an IV antibiotic administration event was (1) if the Therapeutic subgroup from WHO-DD Version September 2017 (ie, TEXT2 for CODE2) takes value “ANTIBACTERIALS FOR SYSTEMIC USE”, and (2) the route of medication was “intravenous” or the route was “other” with the detailed specification as “IVPB”. Any occurrence of IV antibiotic administration during the treatment period. Treatment period was defined as the duration from the date of first dose of study drug up to 30 days after the start of study drug in the last cycle.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    6
    5
    0
    No statistical analyses for this end point

    Secondary: All-cause dose reductions, event rate (per cycle)

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    End point title
    All-cause dose reductions, event rate (per cycle)
    End point description
    Dose reductions were not permitted for trilaciclib. Dose reductions for gemcitabine or carboplatin were collected on the dosing page. No more than 3 dose modifications for toxicity in total were allowed for any patient. All dose reductions were counted as a separate event. Discontinuations of an individual component of the chemotherapy regimen were counted as a dose reduction IF the patient continued the other chemotherapy drug as a monotherapy. Event rate was calculated as the total number of cycles with an event divided by the total number of cycles. The adjusted rate ratio (Treatment Group versus Group 1), its 95% CI, and p-value were calculated using negative binomial method adjusting for number of cycles, accounting for the number of prior lines of therapy (0 versus 1 - 2) and liver involvement as the stratification factors.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Event rate per cycle
        number (not applicable)
    0.141
    0.118
    0.133
    Statistical analysis title
    Dose reductions in Group 3 vs Group 1
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.49 [8]
    Method
    Negative binomial method
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.991
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.475
         upper limit
    2.067
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.3718
    Notes
    [8] - The 1-sided p-value was calculated using a negative binomial regression.
    Statistical analysis title
    Dose reductions in Group 2 vs Group 1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.5541
    Method
    Negative binomial method
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.82
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.426
         upper limit
    1.58
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.2744

    Secondary: Occurrence of Febrile Neutropenia

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    End point title
    Occurrence of Febrile Neutropenia
    End point description
    Each FN event was captured in AE data of electronic database, and “FEBRILE NEUTROPENIA” was a PT that could be used to identify the proper AE records; each FN event with a unique start date during the treatment period was defined as a separate event.
    End point type
    Secondary
    End point timeframe
    From randomization to the Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    1
    1
    0
    No statistical analyses for this end point

    Secondary: Occurrence of RBC Transfusions on/After Week 5 on Study

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    End point title
    Occurrence of RBC Transfusions on/After Week 5 on Study
    End point description
    Each RBC transfusion with a unique start date on/after 5 weeks on study during the treatment period was defined as a separate event. The adjusted rate ratio (Treatment Group versus Group 1) and its 95% CI were calculated using modified Poisson method adjusting for duration of treatment in days, accounting for the number of prior lines of therapy (0 versus 1 - 2) and liver involvement as the stratification factors and baseline hemoglobin as a covariate.
    End point type
    Secondary
    End point timeframe
    From week 5 until Database Lock 1 (data cutoff date 30 July 2018 - Final myelopreservation efficacy results)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    34
    33
    35
    Units: Number of patients
    12
    11
    8
    Statistical analysis title
    RBC transfusions on/after W5 in Group3 vs Group1
    Comparison groups
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    69
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.0374 [9]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.493
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.226
         upper limit
    1.073
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.1957
    Notes
    [9] - The 1-sided p-value was calculated using a modified Poisson regression
    Statistical analysis title
    RBC transfusions on/after W5 in Group2 vs Group1
    Comparison groups
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) v Group 1 (G/C Day 1 and 8)
    Number of subjects included in analysis
    67
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.7564 [10]
    Method
    modified Poisson regression
    Parameter type
    Adjusted rate ratio
    Point estimate
    0.885
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.447
         upper limit
    1.754
    Variability estimate
    Standard error of the mean
    Dispersion value
    0.3089
    Notes
    [10] - The 2-sided p-value is calculated using stratified exact CMH method to account for the number of prior lines of therapy (0 versus 1 or 2) and liver involvement as the stratification factors.

    Secondary: Dose modifications - Cycle delays

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    End point title
    Dose modifications - Cycle delays
    End point description
    After Cycle 1, patients need to meet pre-specified laboratory parameter criteria before initiating Cycle 2 and each subsequent cycle of chemotherapy. If the patient is unable to start a new cycle at that next visit, then the cycle is delayed, the reason entered, and the question is asked again at the next visit until the patient either starts a new cycle or discontinues treatment. Other reasons for cycle delays primarily included investigator decision and administrative reasons (eg, holidays).
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: Number of patients
        Number of patients with any cycle delays
    17
    19
    22
        0 cycles delayed
    10
    14
    11
        1 cycle delayed
    11
    6
    6
        2 cycles delayed
    1
    7
    6
        3 or more cycles delayed
    5
    6
    10
        Cycles delayed due to hematologic toxicity
    13
    14
    16
        Cycles delayed due to nonhematologic toxicity
    1
    5
    7
        Cycles delayed due to other reasons
    5
    11
    7
    No statistical analyses for this end point

    Secondary: Dose modifications - Skipped Doses

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    End point title
    Dose modifications - Skipped Doses
    End point description
    To receive Day 8/9 dose of each cycle, patients need to meet pre-specified laboratory parameter criteria. If the criteria is not met, the Day 8/9 doses are skipped. Other reasons for skipped doses primarily included investigator decision and administrative reasons (eg, holidays).
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: Number of patients
        Number of patients with any skipped doses
    15
    20
    13
        0 doses skipped
    13
    13
    22
        1 dose skipped
    8
    9
    5
        2 doses skipped
    4
    4
    7
        3 or more doses skipped
    3
    7
    1
        Doses skipped due to hematologic toxicity
    13
    19
    11
        Doses skipped due to nonhematologic toxicity
    3
    5
    2
        Doses skipped due to other reasons
    1
    2
    4
    No statistical analyses for this end point

    Secondary: Dose modifications - Dose interruptions

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    End point title
    Dose modifications - Dose interruptions
    End point description
    Trilaciclib dose interruption for Group 1 is not applicable, represented as 0 in the table. Dose interruptions for all drugs are captured on the dosing page and were summarized for each study drug.
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: Number of patients
        Trilaciclib interruptions
    0
    3
    5
        Carboplatin interruptions
    1
    1
    0
        Gemcitabine interruptions
    2
    4
    0
    No statistical analyses for this end point

    Secondary: Dose modifications - Dose Reductions

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    End point title
    Dose modifications - Dose Reductions
    End point description
    Dose (mg/m2) reductions were not permitted for trilaciclib. Dose reductions for carboplatin and gemcitabine were determined by comparing the planned dose on the respective drug administration pages between the current cycle and the previous cycle.
    End point type
    Secondary
    End point timeframe
    From randomization until the Database Lock 2 (data cutoff date 28 June 2019 includes relevant results for safety and anti-tumor efficacy analysis)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: Number of patients
        Any carboplatin dose reductions
    10
    13
    15
        0 carboplatin dose reductions
    20
    20
    20
        1 carboplatin dose reductions
    8
    5
    11
        2 carboplatin dose reductions
    2
    8
    4
        3 or more carboplatin dose reductions
    0
    0
    0
        Any gemcitabine dose reductions
    13
    20
    17
        0 gemcitabine dose reductions
    17
    13
    18
        1 gemcitabine dose reductions
    11
    20
    15
        2 gemcitabine dose reductions
    2
    0
    2
        3 or more gemcitabine dose reductions
    0
    0
    0
    No statistical analyses for this end point

    Other pre-specified: Occurrence of Adverse Events

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    End point title
    Occurrence of Adverse Events
    End point description
    Treatment-Emergent Adverse Events (TEAE) Serious Adverse Events (SAE) An AE was any untoward medical occurrence in a patient administered a medicinal product that did not necessarily have a causal relationship with this treatment; therefore, an AE could be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the study (investigational) product. The ICH topic E2A on Clinical Safety Data Management, Definitions, and Standards for Expedited Reporting defines an SAE as any untoward medical occurrence that at any dose: • Resulted in death • Was life threatening • Required inpatient hospitalization or prolongation of existing hospitalization • Resulted in persistent or significant disability/incapacity • Was a congenital anomaly/birth defect
    End point type
    Other pre-specified
    End point timeframe
    From randomization until the Final Database Lock (data cutoff date 17 Jul 2020)
    End point values
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Number of subjects analysed
    30
    33
    35
    Units: Number of patients with TEAE
        Number of patients with any TEAE
    30
    33
    34
        Number related to any study drug
    26
    31
    34
        Number leading to treatment discontinuation
    10
    14
    11
        Number of patients with any TEAE of Grade ≥3
    27
    29
    29
        Number of patients with any TEAE of Grade ≥4
    13
    14
    12
        Number of TEAE Grade ≥3 related to any study drug
    24
    27
    27
        Number of patients with any SAE
    10
    11
    4
        Number of patients with SAE related to study drug
    2
    3
    0
        Number of patients with TEAE leading to death
    1
    0
    0
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Safety evaluations were conducted at baseline and throughout the study. Safety surveillance reporting of AEs and SAEs commenced at the time of informed consent and continued through 30 days after the last dose of study drug (safety follow-up phone call)
    Adverse event reporting additional description
    A subject with multiple Treatment Emergent AE entries in the same SOC (PT) is only counted once within a particular SOC (PT). Included AEs that started on or after the first dose of study drug (gemcitabine, carboplatin, trilaciclib) as well as AEs with unknown/not reported onset date. Includes information obtained in final DBL 17Jul2020
    Assessment type
    Non-systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    20.1
    Reporting groups
    Reporting group title
    Group 1 (G/C Day 1 and 8)
    Reporting group description
    Subjects receiving standard Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles) only. Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 administered IV.

    Reporting group title
    Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8)
    Reporting group description
    Subjects receiving Trilaciclib administered IV on Days 1 and 8 of 21-day cycles , plus Gemcitabine and Carboplatin therapy (Days 1 and 8 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 administered IV. In Group 2, trilaciclib (240 mg/m2) was administered as an IV infusion over 30 (±5) minutes prior to each GC treatment (on Days 1 and 8). There were no intrapatient dose modifications of trilaciclib during the study. Trilaciclib was administered only with GC therapy. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Reporting group title
    Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Reporting group description
    Subjects receiving Trilaciclib administered IV on Days 1, 2, 8, and 9 of of 21-day cycles, plus Gemcitabine and Carboplatin therapy (Days 2 and 9 of 21-day cycles). Gemcitabine 1000 mg/m^2 and carboplatin AUC 2 (maximum 300 mg) administered IV. In Group 3, trilaciclib (240 mg/m^2) was administered as an IV infusion over 30 (±5) minutes on Days 1, 2, 8, and 9 plus Gemcitabine and Carboplatin therapy which was administered on Days 2 and 9. There were no intrapatient dose modifications of trilaciclib during the study. Trilaciclib was administered only with GC therapy. If administration of all chemotherapy was held or discontinued, administration of trilaciclib was also to be held or discontinued. Chemotherapy could not be administered until after completion of the trilaciclib infusion. Study drug administration was continued until disease progression, unacceptable toxicity, withdrawal of consent, or discontinuation by the investigator, whichever occurred first.

    Serious adverse events
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Total subjects affected by serious adverse events
         subjects affected / exposed
    10 / 30 (33.33%)
    11 / 33 (33.33%)
    4 / 35 (11.43%)
         number of deaths (all causes)
    25
    13
    20
         number of deaths resulting from adverse events
    1
    0
    0
    Vascular disorders
    Embolism
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Hypertension
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Hypotension
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    General disorders and administration site conditions
    Non-cardiac chest pain
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Pain
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Dyspnoea
         subjects affected / exposed
    1 / 30 (3.33%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 2
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Pleural effusion
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 2
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Pulmonary embolism
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Acute respiratory failure
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Obstructive airways disorder
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Pleuritic pain
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Psychiatric disorders
    Suicidal ideation
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Investigations
    Platelet count decreased
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Injury, poisoning and procedural complications
    Lumbar vertebral fracture
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Subdural haematoma
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Cardiac disorders
    Acute left ventricular failure
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Acute myocardial infarction
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Cardiac arrest
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Pericardial effusion
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Right ventricular failure
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
    Nervous system disorders
    Syncope
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Blood and lymphatic system disorders
    Febrile neutropenia
         subjects affected / exposed
    1 / 30 (3.33%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Normochromic normocytic anaemia
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Thrombocytopenia
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Gastrointestinal disorders
    Abdominal pain
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Ascites
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Enteritis
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Faecaloma
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Oesophageal stenosis
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Varices oesophageal
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Renal and urinary disorders
    Haematuria
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Urinary tract obstruction
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Musculoskeletal and connective tissue disorders
    Myositis
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Infections and infestations
    Cellulitis
         subjects affected / exposed
    2 / 30 (6.67%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 2
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Bacteraemia
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Lung infection
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Septic shock
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Metabolism and nutrition disorders
    Diabetic ketoacidosis
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Hypercalcaemia
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Group 1 (G/C Day 1 and 8) Group 2 (Trilaciclib Day 1 and 8 and G/C Day 1 and 8) Group 3 (Trilaciclib Day 1, 2, 8 and 9 and G/C Day 2 and 9)
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    30 / 30 (100.00%)
    33 / 33 (100.00%)
    34 / 35 (97.14%)
    Vascular disorders
    Hypertension
         subjects affected / exposed
    2 / 30 (6.67%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    2
    2
    7
    Hot flush
         subjects affected / exposed
    2 / 30 (6.67%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    2
    2
    0
    Thrombophlebitis superficial
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    3 / 35 (8.57%)
         occurrences all number
    0
    1
    7
    Hypotension
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    0
    0
    2
    Haematoma
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences all number
    0
    0
    1
    General disorders and administration site conditions
    Fatigue
         subjects affected / exposed
    11 / 30 (36.67%)
    14 / 33 (42.42%)
    16 / 35 (45.71%)
         occurrences all number
    17
    22
    35
    Oedema peripheral
         subjects affected / exposed
    4 / 30 (13.33%)
    4 / 33 (12.12%)
    4 / 35 (11.43%)
         occurrences all number
    5
    7
    8
    Pyrexia
         subjects affected / exposed
    3 / 30 (10.00%)
    6 / 33 (18.18%)
    2 / 35 (5.71%)
         occurrences all number
    3
    8
    2
    Pain
         subjects affected / exposed
    4 / 30 (13.33%)
    2 / 33 (6.06%)
    3 / 35 (8.57%)
         occurrences all number
    6
    2
    3
    Chills
         subjects affected / exposed
    0 / 30 (0.00%)
    6 / 33 (18.18%)
    1 / 35 (2.86%)
         occurrences all number
    0
    7
    1
    Influenza like illness
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    4 / 35 (11.43%)
         occurrences all number
    0
    0
    5
    Catheter site pain
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    1
    0
    2
    Chest pain
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    1
    0
    2
    Chest discomfort
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    0
    0
    4
    Infusion site pain
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    0
    0
    2
    Mucosal inflammation
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    0
    2
    0
    Reproductive system and breast disorders
    Breast pain
         subjects affected / exposed
    3 / 30 (10.00%)
    1 / 33 (3.03%)
    3 / 35 (8.57%)
         occurrences all number
    3
    4
    3
    Respiratory, thoracic and mediastinal disorders
    Dyspnoea
         subjects affected / exposed
    3 / 30 (10.00%)
    9 / 33 (27.27%)
    6 / 35 (17.14%)
         occurrences all number
    3
    10
    7
    Cough
         subjects affected / exposed
    2 / 30 (6.67%)
    8 / 33 (24.24%)
    7 / 35 (20.00%)
         occurrences all number
    2
    8
    9
    Nasal congestion
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    4 / 35 (11.43%)
         occurrences all number
    1
    4
    4
    Oropharyngeal pain
         subjects affected / exposed
    1 / 30 (3.33%)
    1 / 33 (3.03%)
    2 / 35 (5.71%)
         occurrences all number
    1
    1
    2
    Pleural effusion
         subjects affected / exposed
    0 / 30 (0.00%)
    3 / 33 (9.09%)
    0 / 35 (0.00%)
         occurrences all number
    0
    4
    0
    Upper-airway cough syndrome
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    1
    2
    1
    Psychiatric disorders
    Anxiety
         subjects affected / exposed
    3 / 30 (10.00%)
    2 / 33 (6.06%)
    4 / 35 (11.43%)
         occurrences all number
    3
    2
    4
    Depression
         subjects affected / exposed
    3 / 30 (10.00%)
    5 / 33 (15.15%)
    1 / 35 (2.86%)
         occurrences all number
    3
    5
    1
    Insomnia
         subjects affected / exposed
    4 / 30 (13.33%)
    1 / 33 (3.03%)
    4 / 35 (11.43%)
         occurrences all number
    4
    1
    4
    Investigations
    Neutrophil count decreased
         subjects affected / exposed
    8 / 30 (26.67%)
    12 / 33 (36.36%)
    11 / 35 (31.43%)
         occurrences all number
    20
    50
    30
    Platelet count decreased
         subjects affected / exposed
    8 / 30 (26.67%)
    8 / 33 (24.24%)
    12 / 35 (34.29%)
         occurrences all number
    38
    13
    44
    Alanine aminotransferase increased
         subjects affected / exposed
    3 / 30 (10.00%)
    4 / 33 (12.12%)
    4 / 35 (11.43%)
         occurrences all number
    5
    6
    4
    Aspartate aminotransferase increased
         subjects affected / exposed
    3 / 30 (10.00%)
    4 / 33 (12.12%)
    4 / 35 (11.43%)
         occurrences all number
    6
    5
    7
    White blood cell count decreased
         subjects affected / exposed
    2 / 30 (6.67%)
    4 / 33 (12.12%)
    2 / 35 (5.71%)
         occurrences all number
    7
    7
    5
    Blood alkaline phosphatase increased
         subjects affected / exposed
    2 / 30 (6.67%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    2
    2
    0
    Weight decreased
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    0
    3
    1
    Haemoglobin decreased
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    0
    2
    0
    Weight increased
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    0
    0
    2
    Injury, poisoning and procedural complications
    Infusion related reaction
         subjects affected / exposed
    1 / 30 (3.33%)
    7 / 33 (21.21%)
    4 / 35 (11.43%)
         occurrences all number
    1
    35
    6
    Nervous system disorders
    Headache
         subjects affected / exposed
    6 / 30 (20.00%)
    9 / 33 (27.27%)
    14 / 35 (40.00%)
         occurrences all number
    9
    11
    22
    Dizziness
         subjects affected / exposed
    6 / 30 (20.00%)
    4 / 33 (12.12%)
    6 / 35 (17.14%)
         occurrences all number
    8
    7
    11
    Dysgeusia
         subjects affected / exposed
    0 / 30 (0.00%)
    5 / 33 (15.15%)
    1 / 35 (2.86%)
         occurrences all number
    0
    5
    1
    Cognitive disorders
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    1
    2
    1
    Restless legs syndrome
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    0
    2
    1
    Burning sensation
         subjects affected / exposed
    0 / 30 (0.00%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    0
    0
    2
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    22 / 30 (73.33%)
    16 / 33 (48.48%)
    15 / 35 (42.86%)
         occurrences all number
    61
    46
    35
    Neutropenia
         subjects affected / exposed
    13 / 30 (43.33%)
    15 / 33 (45.45%)
    12 / 35 (34.29%)
         occurrences all number
    49
    79
    31
    Thrombocytopenia
         subjects affected / exposed
    13 / 30 (43.33%)
    13 / 33 (39.39%)
    11 / 35 (31.43%)
         occurrences all number
    68
    55
    55
    Leukopenia
         subjects affected / exposed
    5 / 30 (16.67%)
    3 / 33 (9.09%)
    1 / 35 (2.86%)
         occurrences all number
    9
    12
    3
    Ear and labyrinth disorders
    Tinnitus
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    0
    2
    0
    Eye disorders
    Lacrimation increased
         subjects affected / exposed
    1 / 30 (3.33%)
    0 / 33 (0.00%)
    2 / 35 (5.71%)
         occurrences all number
    1
    0
    2
    Gastrointestinal disorders
    Nausea
         subjects affected / exposed
    7 / 30 (23.33%)
    14 / 33 (42.42%)
    17 / 35 (48.57%)
         occurrences all number
    8
    19
    31
    Vomiting
         subjects affected / exposed
    8 / 30 (26.67%)
    8 / 33 (24.24%)
    11 / 35 (31.43%)
         occurrences all number
    9
    23
    18
    Constipation
         subjects affected / exposed
    5 / 30 (16.67%)
    9 / 33 (27.27%)
    9 / 35 (25.71%)
         occurrences all number
    6
    16
    11
    Diarrhoea
         subjects affected / exposed
    4 / 30 (13.33%)
    9 / 33 (27.27%)
    5 / 35 (14.29%)
         occurrences all number
    4
    15
    6
    Gastrooesophageal reflux disease
         subjects affected / exposed
    3 / 30 (10.00%)
    5 / 33 (15.15%)
    1 / 35 (2.86%)
         occurrences all number
    3
    5
    1
    Abdominal pain
         subjects affected / exposed
    1 / 30 (3.33%)
    4 / 33 (12.12%)
    2 / 35 (5.71%)
         occurrences all number
    1
    6
    3
    Abdominal pain upper
         subjects affected / exposed
    1 / 30 (3.33%)
    3 / 33 (9.09%)
    3 / 35 (8.57%)
         occurrences all number
    1
    3
    3
    Stomatitis
         subjects affected / exposed
    2 / 30 (6.67%)
    1 / 33 (3.03%)
    2 / 35 (5.71%)
         occurrences all number
    5
    1
    3
    Abdominal distension
         subjects affected / exposed
    0 / 30 (0.00%)
    3 / 33 (9.09%)
    1 / 35 (2.86%)
         occurrences all number
    0
    3
    1
    Flatulence
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    0
    2
    0
    Skin and subcutaneous tissue disorders
    Alopecia
         subjects affected / exposed
    1 / 30 (3.33%)
    5 / 33 (15.15%)
    6 / 35 (17.14%)
         occurrences all number
    1
    5
    6
    Pruritus
         subjects affected / exposed
    1 / 30 (3.33%)
    3 / 33 (9.09%)
    4 / 35 (11.43%)
         occurrences all number
    1
    3
    5
    Erythema
         subjects affected / exposed
    0 / 30 (0.00%)
    4 / 33 (12.12%)
    3 / 35 (8.57%)
         occurrences all number
    0
    21
    4
    Rash
         subjects affected / exposed
    1 / 30 (3.33%)
    3 / 33 (9.09%)
    3 / 35 (8.57%)
         occurrences all number
    1
    3
    4
    Rash maculo-papular
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    4
    4
    1
    Renal and urinary disorders
    Pollakiuria
         subjects affected / exposed
    0 / 30 (0.00%)
    1 / 33 (3.03%)
    2 / 35 (5.71%)
         occurrences all number
    0
    1
    2
    Acute kidney injury
         subjects affected / exposed
    0 / 30 (0.00%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    0
    4
    0
    Musculoskeletal and connective tissue disorders
    Back pain
         subjects affected / exposed
    3 / 30 (10.00%)
    7 / 33 (21.21%)
    3 / 35 (8.57%)
         occurrences all number
    3
    15
    5
    Arthralgia
         subjects affected / exposed
    3 / 30 (10.00%)
    6 / 33 (18.18%)
    3 / 35 (8.57%)
         occurrences all number
    4
    7
    4
    Pain in extremity
         subjects affected / exposed
    2 / 30 (6.67%)
    4 / 33 (12.12%)
    3 / 35 (8.57%)
         occurrences all number
    3
    6
    4
    Bone pain
         subjects affected / exposed
    4 / 30 (13.33%)
    2 / 33 (6.06%)
    2 / 35 (5.71%)
         occurrences all number
    5
    2
    3
    Myalgia
         subjects affected / exposed
    5 / 30 (16.67%)
    2 / 33 (6.06%)
    1 / 35 (2.86%)
         occurrences all number
    5
    2
    1
    Musculoskeletal chest pain
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    3 / 35 (8.57%)
         occurrences all number
    1
    3
    3
    Musculoskeletal pain
         subjects affected / exposed
    1 / 30 (3.33%)
    1 / 33 (3.03%)
    4 / 35 (11.43%)
         occurrences all number
    1
    1
    6
    Flank pain
         subjects affected / exposed
    0 / 30 (0.00%)
    3 / 33 (9.09%)
    1 / 35 (2.86%)
         occurrences all number
    0
    6
    2
    Muscular weakness
         subjects affected / exposed
    0 / 30 (0.00%)
    3 / 33 (9.09%)
    0 / 35 (0.00%)
         occurrences all number
    0
    3
    0
    Infections and infestations
    Urinary tract infection
         subjects affected / exposed
    5 / 30 (16.67%)
    4 / 33 (12.12%)
    3 / 35 (8.57%)
         occurrences all number
    5
    4
    4
    Pneumonia
         subjects affected / exposed
    1 / 30 (3.33%)
    3 / 33 (9.09%)
    0 / 35 (0.00%)
         occurrences all number
    1
    3
    0
    Sinusitis
         subjects affected / exposed
    1 / 30 (3.33%)
    1 / 33 (3.03%)
    2 / 35 (5.71%)
         occurrences all number
    1
    1
    3
    Upper respiratory tract infection
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    1
    3
    0
    Nasopharyngitis
         subjects affected / exposed
    2 / 30 (6.67%)
    0 / 33 (0.00%)
    0 / 35 (0.00%)
         occurrences all number
    2
    0
    0
    Metabolism and nutrition disorders
    Hypokalaemia
         subjects affected / exposed
    3 / 30 (10.00%)
    4 / 33 (12.12%)
    5 / 35 (14.29%)
         occurrences all number
    3
    5
    5
    Decreased appetite
         subjects affected / exposed
    2 / 30 (6.67%)
    5 / 33 (15.15%)
    4 / 35 (11.43%)
         occurrences all number
    2
    6
    7
    Hypophosphataemia
         subjects affected / exposed
    0 / 30 (0.00%)
    3 / 33 (9.09%)
    3 / 35 (8.57%)
         occurrences all number
    0
    4
    7
    Dehydration
         subjects affected / exposed
    4 / 30 (13.33%)
    0 / 33 (0.00%)
    1 / 35 (2.86%)
         occurrences all number
    4
    0
    1
    Hypomagnesaemia
         subjects affected / exposed
    2 / 30 (6.67%)
    1 / 33 (3.03%)
    2 / 35 (5.71%)
         occurrences all number
    2
    1
    2
    Hyponatraemia
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    2 / 35 (5.71%)
         occurrences all number
    3
    2
    2
    Hypoalbuminaemia
         subjects affected / exposed
    1 / 30 (3.33%)
    1 / 33 (3.03%)
    2 / 35 (5.71%)
         occurrences all number
    1
    2
    2
    Hypocalcaemia
         subjects affected / exposed
    1 / 30 (3.33%)
    2 / 33 (6.06%)
    0 / 35 (0.00%)
         occurrences all number
    3
    2
    0
    Hyperlipidaemia
         subjects affected / exposed
    2 / 30 (6.67%)
    0 / 33 (0.00%)
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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    08 Dec 2016
    • Text was added to allow the protocol to enroll patients in Europe and North America and to make the protocol compliant with the safety reporting standards for Europe. • The immunologic marker blood sample collection schedule was simplified to allow all groups to have samples collected on Day 1 of each odd cycle prior to any study therapy. • The schedule of assessments for patients randomized to Group 3 was revised. All assessments completed on Days 2 and 9 (excluding G1T28 infusion, GC infusion, associated vitals, and optional PK sampling and associated ECGs) were transitioned from Days 2 and 9 to Days 1 and 8. These assessments were aligned with assessments completed on Days 1 and 8 for patients in Groups 1 and 2. This change simplified the schedule of assessments for all groups.
    20 Mar 2017
    • The secondary PK objective of the study was changed to indicate that the PK profile of gemcitabine and carboplatin was to be assessed when administered with and without trilaciclib. An exploratory objective was added to assess immune cell infiltrates in tumors. • Criteria for subsequent study drug cycles were updated to include a provision that if the initiation of the next cycle was delayed due to toxicity, the patient was to have (at least) weekly visits to follow the toxicity. • Exclusion criteria were modified to clarify that patients could not receive more than 1 prior chemotherapy regimen for locally recurrent or metastatic TNBC and that noncytotoxic therapies were not considered prior chemotherapy (Exclusion Criterion 1); to clarify that patients with prior treatment of locally recurrent or metastatic breast cancer with gemcitabine, carboplatin, or cisplatin were excluded (Exclusion Criterion 2); to add a provision allowing patients to receive steroids for physiological replacement (as anti-emetics) by inhalation and short course of oral/topical steroids given for allergic reactions or asthma flares (Exclusion Criterion 5); and to remove the prohibition regarding receipt of previous radiotherapy to the target lesion sites (the sites to be followed for determination of response) (Exclusion Criterion 11). • A specification was added that on chemotherapy dosing days, trilaciclib was always to be administered first. • Specifications were added to instructions for post-Cycle 1 use of colony-stimulating factors, including the allowance of pegfilgrastim 24 to 48 hours after Day 8/9 chemotherapy only. • A specification was added that the first Data Monitoring Committee meeting was to occur after approximately the first 20 patients have been enrolled and completed at least 1 cycle.
    31 Aug 2017
    •Inclusion criterion 1 modified to change the requirement from “measurable” disease to “evaluable” disease at baseline •Exclusion criterion 1 was updated to increase the number of prior lines of therapy allowable in the locally recurrent/metastatic TNBC setting from 1 to 2, as well as to include a specific definition as to how to count lines of prior therapy for locally recurrent/metastatic TNBC •Exclusion criterion 2 was deleted. Since G1T28 was hypothesized to provide clinical benefit through myelopreservation rather than a direct anti-tumor effect, allowing prior gemcitabine and carboplatin would not interfere with the study’s primary objective while expanding the eligible patient population •Exclusion criterion 3 was deleted. Use of chemotherapy doublets in the metastatic TNBC setting is restricted to a subset of patients who need more aggressive therapies, allowing patients with “fast” progression after (neo)adjuvant therapy would expand the eligible patient population •An allowance for a second dose modification of gemcitabine and carboplatin for hematologic toxicity or for Grade ≥3 nonhematologic toxicities was added, whereby gemcitabine or carboplatin was permitted to be discontinued while the other drug was continued at the previously reduced dose •Therapeutic use of growth factors in Cycle 1 was allowed per the ASCO guidelines for neutropenia and package inserts •Stratification for randomization was changed from ECOG performance status (0 or 1) to previous systemic anti-cancer therapy (none or prior therapy) •Added baseline brain scan with contrast (by CT or MRI) to be performed at screening for all patients •Tumor assessments were changed from every other cycle (eg, every 6 weeks) to every 9 weeks through Week 27 and then every 12 weeks thereafter •Clarification that malignant lymph nodes were considered an organ • Clarification that patients who withdrew consent from further study treatment/procedures could agree to be followed for survival

    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.
    Limitations: small sample size and open-label design. Antitumor outcomes not the primary endpoints. Use of doublet chemotherapy backbone may restrict extrapolation to patients receiving single-agent therapy. G1T28 immune effects not fully understood.
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