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A Study of Abemaciclib (LY2835219) in Participants With Stage IV Squamous Non-small Cell Lung Cancer

A Randomized Phase 2 Study of Abemaciclib (LY2835219) Versus Docetaxel in Patients With Stage IV Squamous Non-Small Cell Lung Cancer Previously Treated With Platinum-Based Chemotherapy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02450539
Enrollment
159
Registered
2015-05-21
Start date
2015-08-06
Completion date
2020-07-29
Last updated
2021-08-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-Small Cell Lung Cancer Stage IV

Keywords

patient reported outcomes (PRO), patient focused outcomes (PFO), biomarkers, CDK 4 and 6

Brief summary

The main purpose of this study is to evaluate the effectiveness of the study drug known as abemaciclib versus docetaxel in participants with stage IV squamous non-small cell lung cancer (NSCLC) previously treated with platinum-based chemotherapy.

Interventions

DRUGAbemaciclib

Administered orally

DRUGDocetaxel

Administered IV

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Confirmed diagnosis of stage IV NSCLC. * Have progressed during or after platinum-based chemotherapy for advanced disease. * Have not received prior treatment with docetaxel. * Have availability of adequate formalin-fixed paraffin-embedded (FFPE) tumor derived material. * Have adequate organ function including hematology, renal, and liver. * Have good performance score (0-1). * Have measurable disease per RECIST 1.1. * Agree to use a reliable medically approved method of birth control.

Exclusion criteria

* Have received prior treatment with any cyclin dependent kinase (CDK) 4 and 6 inhibitor or participated in a clinical trial with a CDK 4 and 6 inhibitor and the treatment administered is not known. * Are currently receiving treatment in a clinical trial involving an investigational product or non-approved use of a drug or device. * Have the presence of unstable central nervous system (CNS) metastasis. * Have had major surgery (excluding biopsy) \< 28 days of the initial dose of study drug.

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (PFS)Baseline to Objective Progression or Death from Any Cause ( Up To 6 Months)PFS was defined as time from the date of randomization to the date of investigator-determined disease progression as defined by Response Evaluation Criteria in Solid Tumors (RECIST v1.1) or death from any cause. Progressive disease (PD) was defined as at least a 20% increase in the sum of the longest diameters (LD) of target lesions, with reference the smallest sum on study and an absolute increase of at least 5mm, or unequivocal progression of non-target lesions, or 1 or more new lesions. If a participant was not known to have died or have objective progression, PFS time will be censored at the day of their last radiographic tumor assessment (if available) or date of randomization if no post baseline radiographic assessment is available.

Secondary

MeasureTime frameDescription
PK: Volume of Distribution of AbemaciclibCycle (C) 1 Day (D) 1: Pre-dose; C1D8: 4 and 7 hr Post-dose; C2D1: Pre-dose and 3 hr Post-dose; C3 and C4 D1:Pre-dosePK: Volume of Distribution of Abemaciclib
Overall Survival (OS)Baseline to Date of Death from Any Cause (Up To 28 Months)OS was defined as the time from randomization to the date of death due to any cause. For each participant who is not known to have died as the data inclusion cutoff date for overall survival analysis, OS time was censored on the last date the participant is known to be alive.
Percentage of Participants With Complete Response (CR) or Partial Response (PR) (Overall Response Rate [ORR])Baseline to Objective Progression (Up To 6 Months)Overall response was defined as the percentage of randomized participants achieving a best overall response (BoR) of complete response (CR) or partial response (PR) using Response Evaluation Criteria In Solid Tumors (RECIST v1.1) criteria. Participants with unevaluable or unknown response status are considered nonresponders. Complete response (CR) is defined as the disappearance of all target and non-target lesions and no appearance of new lesions. Partial response (PR) is defined as at least a 30% decrease in the sum of the longest diameters (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.
Percentage of Participants Who Exhibit Stable Disease (SD) or Confirmed Response (CR) or Partial Response (PR): Disease Control Rate (DCR)Baseline through Measured Progressive Disease or Death Due to Any Cause (Up To 6 Months)DCR is the percentage of randomized participants who achieved a complete response, partial response or stable disease using Response Evaluation Criteria In Solid Tumors (RECIST v1.1) criteria. Complete response (CR) is defined as the disappearance of all target and non-target lesions, and no appearance of new lesions. Partial response (PR) is defined as at least a 30% decrease in the sum of longest diameters (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions. Stable disease was neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD for target lesions, no progression of non-target lesions, and no appearance of new lesions.
Pharmacokinetics (PK): Clearance of AbemaciclibCycle (C) 1 Day (D) 1: Pre-dose; C1D8: 4 and 7 hr Post-dose; C2D1: Pre-dose and 3 hr Post-dose; C3 and C4 D1:Pre-dosePharmacokinetics (PK): Clearance of Abemaciclib
Change From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresBaseline through End of Study (Up To 6 Months)MDASI-LC included 33 items:6 interference and 27 symptom(3 lung-cancer (LC),8 brain tumor (BT),and 3 study-specific(headache,diarrhea, and rash).Analyzed endpoints were 9 constructs:3 single-items (headache,diarrhea,and rash) and 6 composites(interference+core,LC,core+LC,BT, and core+LC worst 5 baseline).Data for all 9 constructs were collected by an 11-point numeric rating scale anchored at 0(not present or does not interfere) and 10(as bad as you can imagine or interfered completely).The measurement range was 10 (maximum score-minimum score). Between-group difference in regression-predicted change from baseline were estimated for each specified construct. MMRM models included independent variables treatment,visit, treatment\*visit,and baseline score. Group-level negative change from baseline indicated group improvement.
Change From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire EQ VAS Overall Self-rated Health ScoreBaseline to Measured Progressive Disease (Up To 6 Months)The EQ-5D-5L is a standardized instrument for use as a measure of self-reported health status. Overall self-rated health was measured with a vertical 20 cm visual analog scale (VAS) anchored at 0 (worst health) and ranged through 100 (best health). Between-group differences in regression-predicted change from baseline score were estimated for VAS scores. MMRM models included independent variables treatment, visit, treatment\*visit, and baseline score. Group-level negative change from baseline indicated group improvement.
Change From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire Index ValueBaseline to Measured Progressive Disease (Up To 6 Months)There are 5 response levels on a good-to-bad continuum of 1-5 corresponding to none, slight, moderate, severe, and extreme/unable to.The EuroQol-developed crosswalk method was used to convert the EQ-5D-5L,using UK weights,health dimensions(mobility,self-care,usual activities,pain/discomfort, and anxiety/depression) into a single index value;the dimensions are not separately scored.The index is marked missing when ≥1 dimensions are missing.The index scores for the response patterns were anchored on full health to dead with negative values assigned to response patterns/health states considered worse than death.The best pattern is assigned the index value of 1.0; the worst pattern is assigned an index value of -0.594. Between-group differences in regression-predicted change from baseline score were estimated for the index .MMRM models included independent variables treatment, visit, treatment\*visit, and baseline score.Group-level negative change from baseline indicated group improvement.
Time to Worsening of Eastern Cooperative Oncology Group (ECOG) Performance Status of >/=2Randomization to ECOG PFS of >/=2 (Up To 11.5 Months)Worsening of ECOG performance status is the duration from randomization to ECOG PFS of \>/=2. Participants without an ECOG PFS \>/=2 are censored at last adequate post baseline ECOG Performance Status or randomization date (whichever is last). The ECOG Performance Status:0 - Fully active, able to carry on all pre-disease performance without restriction,1 - Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, 2 - Ambulatory and capable of all selfcare but unable to carry out any work activities. Up and about more than 50% of waking hours,3 - Capable of only limited selfcare, confined to bed or chair more than 50% of waking hours, 4 - Completely disabled. Cannot carry on any selfcare. Totally confined to bed or chair, 5 - Dead

Countries

Australia, France, Germany, Hungary, Italy, Poland, Romania, Russia, South Korea, Spain, Taiwan, Ukraine, United States

Participant flow

Pre-assignment details

Study completers are participants who died due to any cause, were on follow-up at study completion or completed continued access period.

Participants by arm

ArmCount
Abemaciclib
200 milligram(mg) Abemaciclib given orally every 12 hours (Q12H) on days 1 to 21 of each 21 day cycle. Participants may continue to receive treatment until discontinuation criteria are met.
106
Docetaxel
75 milligram per meter squared (mg/m²) Docetaxel given intravenously (IV) on day 1 of each 21 day cycle. Participants may continue to receive treatment until discontinuation criteria are met.
53
Total159

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up41
Overall StudyWithdrawal by Subject126

Baseline characteristics

CharacteristicAbemaciclibDocetaxelTotal
Age, Continuous63.1 years
STANDARD_DEVIATION 7.8
64.5 years
STANDARD_DEVIATION 7.1
63.5 years
STANDARD_DEVIATION 7.6
Eastern Cooperative Oncology Group (ECOG) Performance Status (PS)
0
22 Participants7 Participants29 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status (PS)
1
84 Participants46 Participants130 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants3 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
84 Participants48 Participants132 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
17 Participants2 Participants19 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
10 Participants3 Participants13 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
96 Participants50 Participants146 Participants
Region of Enrollment
Australia
4 Participants0 Participants4 Participants
Region of Enrollment
France
1 Participants2 Participants3 Participants
Region of Enrollment
Germany
9 Participants4 Participants13 Participants
Region of Enrollment
Hungary
7 Participants6 Participants13 Participants
Region of Enrollment
Italy
7 Participants1 Participants8 Participants
Region of Enrollment
Poland
14 Participants10 Participants24 Participants
Region of Enrollment
Romania
18 Participants4 Participants22 Participants
Region of Enrollment
Russia
11 Participants2 Participants13 Participants
Region of Enrollment
South Korea
8 Participants1 Participants9 Participants
Region of Enrollment
Spain
8 Participants6 Participants14 Participants
Region of Enrollment
Taiwan
2 Participants2 Participants4 Participants
Region of Enrollment
Ukraine
13 Participants13 Participants26 Participants
Region of Enrollment
United States
4 Participants2 Participants6 Participants
Sex: Female, Male
Female
16 Participants9 Participants25 Participants
Sex: Female, Male
Male
90 Participants44 Participants134 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
71 / 10635 / 52
other
Total, other adverse events
94 / 10643 / 52
serious
Total, serious adverse events
29 / 10617 / 52

Outcome results

Primary

Progression Free Survival (PFS)

PFS was defined as time from the date of randomization to the date of investigator-determined disease progression as defined by Response Evaluation Criteria in Solid Tumors (RECIST v1.1) or death from any cause. Progressive disease (PD) was defined as at least a 20% increase in the sum of the longest diameters (LD) of target lesions, with reference the smallest sum on study and an absolute increase of at least 5mm, or unequivocal progression of non-target lesions, or 1 or more new lesions. If a participant was not known to have died or have objective progression, PFS time will be censored at the day of their last radiographic tumor assessment (if available) or date of randomization if no post baseline radiographic assessment is available.

Time frame: Baseline to Objective Progression or Death from Any Cause ( Up To 6 Months)

Population: All participants according to the treatment group to which they were randomized. Participants censored: Abemaciclib=19 and Docetaxel= 15.

ArmMeasureValue (MEDIAN)
AbemaciclibProgression Free Survival (PFS)2.53 months
DocetaxelProgression Free Survival (PFS)4.21 months
Comparison: Stratified by baseline ECOG performance status (0 vs 1), number of Prior Therapies (received only platinum-based therapy vs Received platinum-based Therapy plus Immune Checkpoint Inhibitor), and time since initiation of first line therapy (\<=9 months vs \>9 months).p-value: 0.006895% CI: [1.165, 2.672]Stratified log-rank test.
Secondary

Change From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire EQ VAS Overall Self-rated Health Score

The EQ-5D-5L is a standardized instrument for use as a measure of self-reported health status. Overall self-rated health was measured with a vertical 20 cm visual analog scale (VAS) anchored at 0 (worst health) and ranged through 100 (best health). Between-group differences in regression-predicted change from baseline score were estimated for VAS scores. MMRM models included independent variables treatment, visit, treatment\*visit, and baseline score. Group-level negative change from baseline indicated group improvement.

Time frame: Baseline to Measured Progressive Disease (Up To 6 Months)

Population: All randomized participants for cycles which at least 25% of participants in each arm have a score.The EQ-5D-5L population included all randomized participants who completed at least 1 baseline assessment followed by at least 1 EQ-5D-5L assessment after Cycle 1 (for example, a completed EQ-5D-5L questionnaire at Cycle 2 Day 1 or later).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AbemaciclibChange From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire EQ VAS Overall Self-rated Health Score-5.49 units on a scaleStandard Error 1.28
DocetaxelChange From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire EQ VAS Overall Self-rated Health Score-2.36 units on a scaleStandard Error 1.63
Comparison: EQ VAS Overall Self-rated Health Score
Secondary

Change From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire Index Value

There are 5 response levels on a good-to-bad continuum of 1-5 corresponding to none, slight, moderate, severe, and extreme/unable to.The EuroQol-developed crosswalk method was used to convert the EQ-5D-5L,using UK weights,health dimensions(mobility,self-care,usual activities,pain/discomfort, and anxiety/depression) into a single index value;the dimensions are not separately scored.The index is marked missing when ≥1 dimensions are missing.The index scores for the response patterns were anchored on full health to dead with negative values assigned to response patterns/health states considered worse than death.The best pattern is assigned the index value of 1.0; the worst pattern is assigned an index value of -0.594. Between-group differences in regression-predicted change from baseline score were estimated for the index .MMRM models included independent variables treatment, visit, treatment\*visit, and baseline score.Group-level negative change from baseline indicated group improvement.

Time frame: Baseline to Measured Progressive Disease (Up To 6 Months)

Population: All randomized participants for cycles which at least 25% of participants in each arm have a score.The EQ-5D-5L population included all randomized participants who completed at least 1 baseline assessment followed by at least 1 EQ-5D-5L assessment after Cycle 1 (for example, a completed EQ-5D-5L questionnaire at Cycle 2 Day 1 or later).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
AbemaciclibChange From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire Index Value-0.05 units on a scaleStandard Error 0.02
DocetaxelChange From Baseline in EuroQol 5-Dimensional 5-Level (EQ-5D-5L) Questionnaire Index Value-0.01 units on a scaleStandard Error 0.02
Comparison: EQ-5D-5L Index Value
Secondary

Change From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) Scores

MDASI-LC included 33 items:6 interference and 27 symptom(3 lung-cancer (LC),8 brain tumor (BT),and 3 study-specific(headache,diarrhea, and rash).Analyzed endpoints were 9 constructs:3 single-items (headache,diarrhea,and rash) and 6 composites(interference+core,LC,core+LC,BT, and core+LC worst 5 baseline).Data for all 9 constructs were collected by an 11-point numeric rating scale anchored at 0(not present or does not interfere) and 10(as bad as you can imagine or interfered completely).The measurement range was 10 (maximum score-minimum score). Between-group difference in regression-predicted change from baseline were estimated for each specified construct. MMRM models included independent variables treatment,visit, treatment\*visit,and baseline score. Group-level negative change from baseline indicated group improvement.

Time frame: Baseline through End of Study (Up To 6 Months)

Population: All randomized participants for cycles which at least 25% of participants in each arm have a score.MDASI-LC population included all randomized participants who completed at least 1 baseline assessment followed by at least 1 MDASI-LC assessment after Cycle 1 (for example, a completed MDASI-LC questionnaire at Cycle 2 Day 1 or later)

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresDiarrhea1.01 units on a scaleStandard Error 0.18
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean core plus lung cancer symptom severity0.47 units on a scaleStandard Error 0.13
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean interference0.50 units on a scaleStandard Error 0.2
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean brain tumor symptom severity0.19 units on a scaleStandard Error 0.11
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean core symptom severity0.53 units on a scaleStandard Error 0.14
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean core plus lung worst 5 symptoms severity-0.25 units on a scaleStandard Error 0.17
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean lung cancer symptom severity0.20 units on a scaleStandard Error 0.12
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresRash0.28 units on a scaleStandard Error 0.14
AbemaciclibChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresHeadache0.19 units on a scaleStandard Error 0.14
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresRash0.18 units on a scaleStandard Error 0.17
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresHeadache0.01 units on a scaleStandard Error 0.18
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresDiarrhea0.15 units on a scaleStandard Error 0.23
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean core symptom severity0.00 units on a scaleStandard Error 0.18
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean interference0.18 units on a scaleStandard Error 0.27
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean lung cancer symptom severity-0.19 units on a scaleStandard Error 0.15
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean core plus lung cancer symptom severity-0.04 units on a scaleStandard Error 0.17
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean brain tumor symptom severity0.13 units on a scaleStandard Error 0.15
DocetaxelChange From Baseline in MD Anderson Symptom Inventory-Lung Cancer (MDASI-LC) ScoresMean core plus lung worst 5 symptoms severity-0.94 units on a scaleStandard Error 0.22
Comparison: Headache
Comparison: Diarrhea
Comparison: Mean core symptom severity
Comparison: Mean interference
Comparison: Mean lung cancer symptom severity
Comparison: Mean core plus lung cancer symptom severity
Comparison: Mean brain tumor symptom severity
Comparison: Mean core plus lung worst 5 symptoms severity
Comparison: Rash
Secondary

Overall Survival (OS)

OS was defined as the time from randomization to the date of death due to any cause. For each participant who is not known to have died as the data inclusion cutoff date for overall survival analysis, OS time was censored on the last date the participant is known to be alive.

Time frame: Baseline to Date of Death from Any Cause (Up To 28 Months)

Population: All participants according to the treatment group to which they were randomized. Participants censored: Abemaciclib=35 and Docetaxel= 17.

ArmMeasureValue (MEDIAN)
AbemaciclibOverall Survival (OS)7 Months
DocetaxelOverall Survival (OS)12.39 Months
Comparison: Stratified by baseline ECOG performance status (0 vs 1), number of Prior Therapies (received only platinum-based therapy vs Received platinum-based Therapy plus Immune Checkpoint Inhibitor), and time since initiation of first line therapy (\<=9 months vs \>9 months).\]p-value: 0.174695% CI: [0.879, 2.022]Stratified log-rank test
Secondary

Percentage of Participants Who Exhibit Stable Disease (SD) or Confirmed Response (CR) or Partial Response (PR): Disease Control Rate (DCR)

DCR is the percentage of randomized participants who achieved a complete response, partial response or stable disease using Response Evaluation Criteria In Solid Tumors (RECIST v1.1) criteria. Complete response (CR) is defined as the disappearance of all target and non-target lesions, and no appearance of new lesions. Partial response (PR) is defined as at least a 30% decrease in the sum of longest diameters (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions. Stable disease was neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD for target lesions, no progression of non-target lesions, and no appearance of new lesions.

Time frame: Baseline through Measured Progressive Disease or Death Due to Any Cause (Up To 6 Months)

Population: All randomized participants.

ArmMeasureValue (NUMBER)
AbemaciclibPercentage of Participants Who Exhibit Stable Disease (SD) or Confirmed Response (CR) or Partial Response (PR): Disease Control Rate (DCR)50.9 percentage participants
DocetaxelPercentage of Participants Who Exhibit Stable Disease (SD) or Confirmed Response (CR) or Partial Response (PR): Disease Control Rate (DCR)64.2 percentage participants
95% CI: [-29.2, 2.8]
Secondary

Percentage of Participants With Complete Response (CR) or Partial Response (PR) (Overall Response Rate [ORR])

Overall response was defined as the percentage of randomized participants achieving a best overall response (BoR) of complete response (CR) or partial response (PR) using Response Evaluation Criteria In Solid Tumors (RECIST v1.1) criteria. Participants with unevaluable or unknown response status are considered nonresponders. Complete response (CR) is defined as the disappearance of all target and non-target lesions and no appearance of new lesions. Partial response (PR) is defined as at least a 30% decrease in the sum of the longest diameters (LD) of target lesions (taking as reference the baseline sum LD), no progression of non-target lesions and no appearance of new lesions.

Time frame: Baseline to Objective Progression (Up To 6 Months)

Population: All randomized participants.

ArmMeasureValue (NUMBER)
AbemaciclibPercentage of Participants With Complete Response (CR) or Partial Response (PR) (Overall Response Rate [ORR])2.8 percentage participants
DocetaxelPercentage of Participants With Complete Response (CR) or Partial Response (PR) (Overall Response Rate [ORR])20.8 percentage participants
95% CI: [-29.3, -6.6]
Secondary

Pharmacokinetics (PK): Clearance of Abemaciclib

Pharmacokinetics (PK): Clearance of Abemaciclib

Time frame: Cycle (C) 1 Day (D) 1: Pre-dose; C1D8: 4 and 7 hr Post-dose; C2D1: Pre-dose and 3 hr Post-dose; C3 and C4 D1:Pre-dose

Population: All participants who received abemaciclib and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
AbemaciclibPharmacokinetics (PK): Clearance of Abemaciclib21.3 Liters/hour (L/h)Geometric Coefficient of Variation 36
Secondary

PK: Volume of Distribution of Abemaciclib

PK: Volume of Distribution of Abemaciclib

Time frame: Cycle (C) 1 Day (D) 1: Pre-dose; C1D8: 4 and 7 hr Post-dose; C2D1: Pre-dose and 3 hr Post-dose; C3 and C4 D1:Pre-dose

Population: All participants who received Abemaciclib and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
AbemaciclibPK: Volume of Distribution of Abemaciclib769 Liters (L)Geometric Coefficient of Variation 51
Secondary

Time to Worsening of Eastern Cooperative Oncology Group (ECOG) Performance Status of >/=2

Worsening of ECOG performance status is the duration from randomization to ECOG PFS of \>/=2. Participants without an ECOG PFS \>/=2 are censored at last adequate post baseline ECOG Performance Status or randomization date (whichever is last). The ECOG Performance Status:0 - Fully active, able to carry on all pre-disease performance without restriction,1 - Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, 2 - Ambulatory and capable of all selfcare but unable to carry out any work activities. Up and about more than 50% of waking hours,3 - Capable of only limited selfcare, confined to bed or chair more than 50% of waking hours, 4 - Completely disabled. Cannot carry on any selfcare. Totally confined to bed or chair, 5 - Dead

Time frame: Randomization to ECOG PFS of >/=2 (Up To 11.5 Months)

Population: All randomized participants. Participants censored: Abemaciclib =93 and Docetaxel= 43.

ArmMeasureValue (MEDIAN)
AbemaciclibTime to Worsening of Eastern Cooperative Oncology Group (ECOG) Performance Status of >/=2NA months
DocetaxelTime to Worsening of Eastern Cooperative Oncology Group (ECOG) Performance Status of >/=210.52 months
Comparison: Stratification factors are baseline ECOG performance status (0 vs 1), Number of Prior Therapies (received only platinum-based therapy vs Received platinum-based Therapy plus Immune Checkpoint Inhibitor), and time since initiation of first line therapy (\<=9 months vs \>9 months).p-value: 0.703995% CI: [0.502, 2.792]Stratified Log Rank

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026