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NCT02514447 · OUTCOME

Tumor Response Based on RECIST, Version 1.1

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
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
From date of first dose of study drug (Part 1)/randomization (Part 2) until the occurrence of progressive disease, withdrawal of consent, or initiation of subsequent anti-cancer therapy, (assessed up to a maximum of 1335 days).

What was measured

The percentage of patients who fall into each category of Best overall response (BOR) as defined by RECIST, Version 1.1. Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions. Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. When no imaging/measurement is done, the patient is not evaluable (NE); and if only a subset of lesion measurements are made, usually the case is also considered NE.

Analysis population: Response-Evaluable analysis set: All patients who are in the mITT, have measurable disease (target lesions) at the baseline tumor assessment, and either (i) have at least 1 post-baseline tumor assessment, (ii) have clinical progression as noted by the investigator before their first post-baseline tumor scan, or (iii) have died due to disease progression before their first post-baseline tumor scan.

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 2b26
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a29
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b30
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 16
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 17

Reported measurements

Complete Response (CR)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b1Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a0Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b0Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 10Not reportedNot reportedNot reportedNot reported
Partial Response (PR)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b5Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a3Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b5Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 12Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 11Not reportedNot reportedNot reportedNot reported
Stable Disease (SD)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a15Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b13Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 13Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 16Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 13Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 13Not reportedNot reportedNot reportedNot reported
Progressive Disease (PD)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b6Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a9Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b6Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 12Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 12Not reportedNot reportedNot reportedNot reported
Not Evaluable (NE)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b2Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a0Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b0Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 10Not reportedNot reportedNot reportedNot reported
No post-baseline tumor assessment (Missing)
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Topotecan 1.5 mg/m² - Parts 2a and 2b2Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Part 2a2Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.5 mg/m² - Part 2b6Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.5 mg/m² - Cohort 1- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 1.25 mg/m² - Cohort 2- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 200 mg/m² + Topotecan 0.75 mg/m² - Cohort 3- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 0.75 mg/m² - Cohorts 4 and 6- Part 10Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 280 mg/m² + Topotecan 0.75 mg/m² - Cohort 5- Part 11Not reportedNot reportedNot reportedNot reported
Trilaciclib (G1T28) 240 mg/m² + Topotecan 1.0 mg/m² - Cohort 7- Part 11Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        1
      2. group Id
        OG001
        value
        0
      3. group Id
        OG002
        value
        0
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        0
      6. group Id
        OG005
        value
        0
      7. group Id
        OG006
        value
        0
      8. group Id
        OG007
        value
        0
      9. group Id
        OG008
        value
        0
    title
    Complete Response (CR)
  2. categories
    1. measurements
      1. group Id
        OG000
        value
        5
      2. group Id
        OG001
        value
        3
      3. group Id
        OG002
        value
        5
      4. group Id
        OG003
        value
        1
      5. group Id
        OG004
        value
        2
      6. group Id
        OG005
        value
        0
      7. group Id
        OG006
        value
        1
      8. group Id
        OG007
        value
        0
      9. group Id
        OG008
        value
        1
    title
    Partial Response (PR)
  3. categories
    1. measurements
      1. group Id
        OG000
        value
        10
      2. group Id
        OG001
        value
        15
      3. group Id
        OG002
        value
        13
      4. group Id
        OG003
        value
        1
      5. group Id
        OG004
        value
        0
      6. group Id
        OG005
        value
        3
      7. group Id
        OG006
        value
        6
      8. group Id
        OG007
        value
        3
      9. group Id
        OG008
        value
        3
    title
    Stable Disease (SD)
  4. categories
    1. measurements
      1. group Id
        OG000
        value
        6
      2. group Id
        OG001
        value
        9
      3. group Id
        OG002
        value
        6
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        1
      6. group Id
        OG005
        value
        1
      7. group Id
        OG006
        value
        1
      8. group Id
        OG007
        value
        2
      9. group Id
        OG008
        value
        2
    title
    Progressive Disease (PD)
  5. categories
    1. measurements
      1. group Id
        OG000
        value
        2
      2. group Id
        OG001
        value
        0
      3. group Id
        OG002
        value
        0
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        0
      6. group Id
        OG005
        value
        0
      7. group Id
        OG006
        value
        0
      8. group Id
        OG007
        value
        0
      9. group Id
        OG008
        value
        0
    title
    Not Evaluable (NE)
  6. categories
    1. measurements
      1. group Id
        OG000
        value
        2
      2. group Id
        OG001
        value
        2
      3. group Id
        OG002
        value
        6
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        0
      6. group Id
        OG005
        value
        0
      7. group Id
        OG006
        value
        0
      8. group Id
        OG007
        value
        1
      9. group Id
        OG008
        value
        1
    title
    No post-baseline tumor assessment (Missing)
denoms
  1. counts
    1. group Id
      OG000
      value
      26
    2. group Id
      OG001
      value
      29
    3. group Id
      OG002
      value
      30
    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
      6
    9. group Id
      OG008
      value
      7
    units
    Participants
description
The percentage of patients who fall into each category of Best overall response (BOR) as defined by RECIST, Version 1.1. Complete Response (CR): Disappearance of all target lesions. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions. Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. When no imaging/measurement is done, the patient is not evaluable (NE); and if only a subset of lesion measurements are made, usually the case is also considered NE.
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
COUNT_OF_PARTICIPANTS
population Description
Response-Evaluable analysis set: All patients who are in the mITT, have measurable disease (target lesions) at the baseline tumor assessment, and either (i) have at least 1 post-baseline tumor assessment, (ii) have clinical progression as noted by the investigator before their first post-baseline tumor scan, or (iii) have died due to disease progression before their first post-baseline tumor scan.
reporting Status
POSTED
time Frame
From date of first dose of study drug (Part 1)/randomization (Part 2) until the occurrence of progressive disease, withdrawal of consent, or initiation of subsequent anti-cancer therapy, (assessed up to a maximum of 1335 days).
title
Tumor Response Based on RECIST, Version 1.1
type
SECONDARY
unit Of Measure
Participants

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