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NCT02514447 · OUTCOME

Progression Free Survival (PFS)

Trilaciclib (G1T28) in Patients With Previously Treated Extensive Stage SCLC Receiving Topotecan Chemotherapy · Source last updated 2025-09-25

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
From date of first dose of study drug (Part 1)/randomization (Part 2), until date of documented disease progression or death due to any cause (evaluated up to a maximum of 1335 days).

What was measured

Median time (months) and 95% CI from date of first dose of study drug/randomization until date of documented disease progression or death due to any cause. Investigators followed the Response Evaluation Criteria in Solid Tumors (RECIST), Version 1.1 guidelines for tumor assessments to determine progression. Progressive Disease (PD) was defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).

Analysis population: The intent-to-treat (ITT) analysis set: All enrolled patients who received at least one dose of study drugs in Part 1 and all randomized patients in Part 2 on the basis of the assigned treatment.

Groups in this outcome

Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b

Patients in Parts 2a and 2b were randomized 1:2 to placebo. Patients received placebo administered IV once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of placebo on Days 1 to 5, patients received IV topotecan (1.5 mg/m²). Placebos Topotecan

Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a

Patients in Part 2a were randomized 2:1 to trilaciclib. Patients received trilaciclib (240 mg/m²) administered IV once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²). Trilaciclib Topotecan

Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b

Patients in Part 2b were randomized 2:1 to trilaciclib. Patients received trilaciclib (240 mg/m²) administered IV once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.5 mg/m²). Trilaciclib Topotecan

Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 1

Patients received trilaciclib (200 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.50 mg/m²).

Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 1

Patients received trilaciclib (200 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.25 mg/m²).

Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 1

Patients received trilaciclib (200 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²).

Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 1

Patients received trilaciclib (240 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²).

Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 1

Patients received trilaciclib (280 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²).

Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 1

Patients received trilaciclib (240 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.0 mg/m²).

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b29
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a30
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b32
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 12
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 13
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 14
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 18
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 17
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 18

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b4.2Not reported1.66.2Not reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a3.0Not reported1.73.6Not reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b4.2Not reported2.15.2Not reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 15.5Not reportedNANADue to only 1 event, the confidence limits for the median could not be estimated.
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 14.3Not reported1.48.9Not reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 13.6Not reported2.14.2Not reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 14.5Not reported0.75.9Not reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 11.8Not reported1.36.9Not reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 12.1Not reported1.47.5Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        1.6
        upper Limit
        6.2
        value
        4.2
      2. group Id
        OG001
        lower Limit
        1.7
        upper Limit
        3.6
        value
        3.0
      3. group Id
        OG002
        lower Limit
        2.1
        upper Limit
        5.2
        value
        4.2
      4. comment
        Due to only 1 event, the confidence limits for the median could not be estimated.
        group Id
        OG003
        lower Limit
        NA
        upper Limit
        NA
        value
        5.5
      5. group Id
        OG004
        lower Limit
        1.4
        upper Limit
        8.9
        value
        4.3
      6. group Id
        OG005
        lower Limit
        2.1
        upper Limit
        4.2
        value
        3.6
      7. group Id
        OG006
        lower Limit
        0.7
        upper Limit
        5.9
        value
        4.5
      8. group Id
        OG007
        lower Limit
        1.3
        upper Limit
        6.9
        value
        1.8
      9. group Id
        OG008
        lower Limit
        1.4
        upper Limit
        7.5
        value
        2.1
denoms
  1. counts
    1. group Id
      OG000
      value
      29
    2. group Id
      OG001
      value
      30
    3. group Id
      OG002
      value
      32
    4. group Id
      OG003
      value
      2
    5. group Id
      OG004
      value
      3
    6. group Id
      OG005
      value
      4
    7. group Id
      OG006
      value
      8
    8. group Id
      OG007
      value
      7
    9. group Id
      OG008
      value
      8
    units
    Participants
description
Median time (months) and 95% CI from date of first dose of study drug/randomization until date of documented disease progression or death due to any cause. Investigators followed the Response Evaluation Criteria in Solid Tumors (RECIST), Version 1.1 guidelines for tumor assessments to determine progression. Progressive Disease (PD) was defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).
dispersion Type
95% Confidence Interval
groups
  1. description
    Patients in Parts 2a and 2b were randomized 1:2 to placebo. Patients received placebo administered IV once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of placebo on Days 1 to 5, patients received IV topotecan (1.5 mg/m²). Placebos Topotecan
    id
    OG000
    title
    Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b
  2. description
    Patients in Part 2a were randomized 2:1 to trilaciclib. Patients received trilaciclib (240 mg/m²) administered IV once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²). Trilaciclib Topotecan
    id
    OG001
    title
    Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a
  3. description
    Patients in Part 2b were randomized 2:1 to trilaciclib. Patients received trilaciclib (240 mg/m²) administered IV once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.5 mg/m²). Trilaciclib Topotecan
    id
    OG002
    title
    Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b
  4. description
    Patients received trilaciclib (200 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.50 mg/m²).
    id
    OG003
    title
    Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 1
  5. description
    Patients received trilaciclib (200 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.25 mg/m²).
    id
    OG004
    title
    Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 1
  6. description
    Patients received trilaciclib (200 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²).
    id
    OG005
    title
    Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 1
  7. description
    Patients received trilaciclib (240 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²).
    id
    OG006
    title
    Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 1
  8. description
    Patients received trilaciclib (280 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (0.75 mg/m²).
    id
    OG007
    title
    Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 1
  9. description
    Patients received trilaciclib (240 mg/m²) administered intravenously (IV) once daily on Days 1 to 5 of each 21-day topotecan chemotherapy cycle. Following administration of trilaciclib on Days 1 to 5, patients received IV topotecan (1.0 mg/m²).
    id
    OG008
    title
    Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 1
param Type
MEDIAN
population Description
The intent-to-treat (ITT) analysis set: All enrolled patients who received at least one dose of study drugs in Part 1 and all randomized patients in Part 2 on the basis of the assigned treatment.
reporting Status
POSTED
time Frame
From date of first dose of study drug (Part 1)/randomization (Part 2), until date of documented disease progression or death due to any cause (evaluated up to a maximum of 1335 days).
title
Progression Free Survival (PFS)
type
SECONDARY
unit Of Measure
months

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

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