Skip to content

Comparison of Efficacy and Safety of Tislelizumab (BGB-A317) Versus Docetaxel as Treatment in the Second- or Third-line Setting in Participants With Non-Small Cell Lung Cancer (NSCLC)

A Phase 3, Open-Label, Multicenter, Randomized Study to Investigate the Efficacy and Safety of BGB-A317 (Anti-PD1 Antibody) Compared With Docetaxel in Patients With Non-Small Cell Lung Cancer Who Have Progressed on a Prior Platinum-Containing Regimen

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03358875
Acronym
RATIONALE-303
Enrollment
805
Registered
2017-12-02
Start date
2017-11-30
Completion date
2024-01-18
Last updated
2025-02-10

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

Brief summary

The purpose of this study is to show that tislelizumab will improve overall survival in participants with Stage IIIB or IV non-small cell lung cancer when compared to docetaxel in second or third-line treatment setting.

Detailed description

This is a randomized, open-label, multicenter Phase 3 study in adult participants with histologically confirmed, locally advanced or metastatic (Stage IIIB or IV), NSCLC (squamous or non-squamous) who have disease progression during or after a platinum-containing regimen.

Interventions

DRUGTislelizumab

Tislelizumab administered by intravenous (IV) infusion

DRUGDocetaxel

Docetaxel administered as an IV infusion over 1 hour

Sponsors

BeiGene
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

Key Inclusion Criteria: 1. Age ≥ 18 years. 2. Signed Informed Consent Form. 3. Histologically confirmed locally advanced or metastatic (Stage IIIB or IV) NSCLC of either squamous or non-squamous histology types with disease progression during or following treatment with at least one platinum-containing regimen, but no more than 2 lines of systemic therapy. 4. Participants must be able to provide fresh or archival tumor tissues for central assessment of PD-L1 expression in tumor cells. Participants with non-squamous histology must provide evidence of not harboring sensitizing epidermal growth factor (EGFR) mutation tested by a histology-based method. 5. Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1. 6. Adequate hematologic and end-organ function. 7. Expected life span \> 12 weeks. 8. Willing to be compliance with birth control requirement during pre-specified study participating period Key

Exclusion criteria

1. Prior therapies of docetaxel or treatment targeting programmed cell death protein 1 (PD-1), PD-L1 or cytotoxic T-lymphocyte associated protein 4 (CTLA-4). 2. Harboring EGFR sensitizing mutation or anaplastic lymphoma kinase (ALK) gene translocation. 3. Unresolved side effects of Grade 2 and above from prior anti-cancer therapies, except for adverse events (AEs) not constituting a likely safety risk (e.g. alopecia, rash, pigmentation, specific lab abnormalities). 4. History of severe hypersensitivity reactions to other monoclonal antibodies (mAbs). 5. History of interstitial lung disease, non-infectious pneumonitis or participants with significantly impaired pulmonary function, or who require supplemental oxygen at baseline. 6. With uncontrollable pleural effusion, pericardial effusion, or clinically significant ascites requiring interventional treatment. 7. Active leptomeningeal disease or uncontrolled, untreated brain metastasis. 8. Severe chronic or active infection requiring systemic treatment. 9. Known human immunodeficiency virus (HIV) infection, participants with untreated chronic hepatitis B, active vaccination treatment. 10. Insufficient cardiac functions and other underlying unfavorable cardiovascular conditions. 11. Prior allogeneic stem cell transplantation or organ transplantation. 12. Active autoimmune diseases or history of autoimmune diseases that may relapse. 13. With conditions requiring systemic treatment with either corticosteroids (\>10 mg daily prednisone or equivalent) or other immunosuppressive medications. 14. With severe underlying medical conditions (including laboratory abnormalities) or alcohol or drug abuse that may affect the explanation of drug toxicity or AEs or result in impaired compliance with study conduct. NOTE: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS) in All Participants (Co-primary Endpoint)From randomization to the data cutoff date of 10 August 2020; up to 32.4 monthsOS was defined as the time from randomization to death from any cause. Median OS was calculated using the Kaplan-Meier method. Data for participants who were not reported as having died at the time of analysis were censored at the date they were last known to be alive. Data for participants who did not have postbaseline information were censored at the date of randomization.
Overall Survival (OS) in Programmed Cell Death Protein Ligand-1 (PD-L1)-Positive Participants (Co-primary Endpoint)From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsOS was defined as the time from randomization to death from any cause. Median OS was calculated using the Kaplan-Meier method. Data for participants who were not reported as having died at the time of analysis were censored at the date they were last known to be alive. Data for participants who did not have postbaseline information were censored at the date of randomization.

Secondary

MeasureTime frameDescription
Duration of Response (DOR) for All RespondersFrom randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsDoR was defined as the time from the first documented objective response to documented disease progression as assessed by the investigator using RECIST v1.1, or death from any cause, whichever occurred first. Median DOR was estimated using the Kaplan-Meier method. Progressive Disease (PD): At least a 20% increase in the size of target lesions with an absolute increase of at least 5 mm, or unequivocal progression of existing non-target lesions, or the appearance of any new lesions.
Duration of Response (DOR) in PD-L1-Positive RespondersFrom randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsDoR was defined as the time from the first documented objective response to documented disease progression as assessed by the investigator using RECIST v1.1, or death from any cause, whichever occurred first. Median DOR was estimated using the Kaplan-Meier method. Progressive Disease (PD): At least a 20% increase in the size of target lesions with an absolute increase of at least 5 mm, or unequivocal progression of existing non-target lesions, or the appearance of any new lesions.
Progression-free Survival (PFS) in All ParticipantsFrom randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsPFS was defined as the time from randomization to the first objectively documented disease progression as assessed by the investigator per RECIST v1.1 or death from any cause, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method.
Progression-free Survival in PD-L1 Positive ParticipantsFrom randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsPFS was defined as the time from randomization to the first objectively documented disease progression as assessed by the investigator per RECIST v1.1 or death from any cause, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method.
Objective Response Rate (ORR) in All ParticipantsFrom randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsObjective response rate is defined as the percentage of participants who had a complete response (CR) or partial response (PR) as assessed by the investigator per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 Tumor assessments included computed tomography (CT) scans or magnetic resonance imaging (MRI), with preference for CT, of the chest, abdomen, and pelvis. CR: Disappearance of all target and non-target lesions and no new lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. PR: At least a 30% decrease in the size of target lesions and no progression of non-target lesions and no new lesions, or disappearance of all target lesions with persistence of one or more non-target lesion(s) and/or maintenance of tumor marker level above the normal limits and no new lesions.
Change From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresBaseline and Cycle 6 (each cycle was 3 weeks)The EORTC QLQ-LC13 is the lung cancer module of the QLQ-C30 and measures lung cancer-specific disease and treatment symptoms. It includes 13 questions about specific symptoms in which participants respond based on a 4-point scale, where 1 is not at all and 4 is very much. Raw scores are transformed into a 0 to 100 scale via linear transformation. Lower scores indicate an improvement in symptoms.
Change From Baseline in European Quality of Life 5-Dimensions, 5-level (EQ-5D-5L) Visual Analogue Scale (VAS)Baseline and Cycle 6 (each cycle was 3 weeks)The EQ-5D-5L measures health outcomes using a VAS to record a participant's self-rated health on a scale from 0 to 100, where 100 is 'the best health you can imagine' and 0 is 'the worst health you can imagine.' A higher score indicates better health outcomes.
Number of Participants With Treatment-emergent Adverse Events (TEAEs)From first dose of study drug to 30 days after last dose, up to the study completion date cut-off date of 18 January 2024 (up to approximately 63 months)An adverse event is defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study drug, whether considered related to study drug or not. The investigator assessed the severity of each AE and graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v4.03 as defined below: * Grade 1: Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. * Grade 2: Moderate; minimal, local or noninvasive intervention indicated; limiting age-appropriate activities of daily living. * Grade 3: Severe or medically significant but not immediately life threatening. hospitalization or prolongation of hospitalization indicated; disabling; limiting selfcare activities of daily living. * Grade 4: Life threatening consequences; urgent intervention indicated. * Grade 5: Death related to AE.
Change From Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status (GHS)/Quality of Life (QOL) ScoreBaseline and Cycle 6 (each cycle was 3 weeks)The EORTC QLQ-30 contains 30 questions that incorporate 5 functional scales (physical functioning, role functioning, emotional functioning, cognitive functioning, and social functioning), 1 global health status scale, 3 symptom scales (fatigue, nausea and vomiting, and pain), and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). The participant answers questions about their health during the past week. There are 28 questions answered on a 4-point scale where 1 = Not at all (best) and 4 = Very Much (worst) and two global health quality of life (QOL) questions answered on a 7-point scale where 1 = Very poor and 7 = Excellent. Raw scores are transformed into a 0 to 100 scale via linear transformation. Higher scores in GHS/QoL score indicates better quality of life.
Objective Response Rate in PD-L1-Positive ParticipantsFrom randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 monthsObjective response rate is defined as the percentage of participants who had a complete response (CR) or partial response (PR) as assessed by the investigator per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 Tumor assessments included computed tomography (CT) scans or magnetic resonance imaging (MRI), with preference for CT, of the chest, abdomen, and pelvis. CR: Disappearance of all target and non-target lesions and no new lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. PR: At least a 30% decrease in the size of target lesions and no progression of non-target lesions and no new lesions, or disappearance of all target lesions with persistence of one or more non-target lesion(s) and/or maintenance of tumor marker level above the normal limits and no new lesions.

Countries

Brazil, Bulgaria, China, Lithuania, Mexico, New Zealand, Poland, Russia, Slovakia, Turkey (Türkiye)

Participant flow

Recruitment details

This study was conducted at 109 study centers in 10 countries (China, Brazil, Bulgaria, Lithuania, Mexico, New Zealand, Poland, Russia, Slovakia, and Turkey).

Pre-assignment details

Eligible participants were randomized in a 2:1 ratio to receive either tislelizumab or docetaxel treatment. Randomization was stratified by histology (squamous versus non--squamous), line of therapy (second line versus third line), and programmed cell death protein ligand-1 (PD-L1) expression (≥ 25% tumor cells (TCs) versus \< 25% TCs).

Participants by arm

ArmCount
Tislelizumab
Participants received tislelizumab 200 mg IV once every 3 weeks until disease progression, unacceptable toxicity, or withdrawal of informed consent, whichever occurred first.
535
Docetaxel
Participants received docetaxel 75 mg/m² IV once every 3 weeks until disease progression, unacceptable toxicity, or withdrawal of informed consent, whichever occurred first.
270
Total805

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath409223
Overall StudyLost to Follow-up132
Overall StudyMiscellaneous330
Overall StudyRemained on Study10
Overall StudyStudy Closed by Sponsor6629
Overall StudyWithdrawal by Subject1316

Baseline characteristics

CharacteristicTislelizumabDocetaxelTotal
Age, Continuous60.4 years
STANDARD_DEVIATION 8.79
60.7 years
STANDARD_DEVIATION 8.95
60.5 years
STANDARD_DEVIATION 8.84
Current Line of Therapy
Second line
453 Participants229 Participants682 Participants
Current Line of Therapy
Third line
82 Participants41 Participants123 Participants
Histology
Non-Squamous
287 Participants148 Participants435 Participants
Histology
Squamous
248 Participants122 Participants370 Participants
PD-L1 Expression
< 25% of tumor cells
307 Participants152 Participants459 Participants
PD-L1 Expression
≥ 25% of tumor cells
227 Participants115 Participants342 Participants
PD-L1 Expression
Missing
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
12 Participants1 Participants13 Participants
Race/Ethnicity, Customized
Asian
424 Participants219 Participants643 Participants
Race/Ethnicity, Customized
Black or African American
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
3 Participants3 Participants6 Participants
Race/Ethnicity, Customized
Other
2 Participants0 Participants2 Participants
Race/Ethnicity, Customized
White
93 Participants44 Participants137 Participants
Sex: Female, Male
Female
119 Participants64 Participants183 Participants
Sex: Female, Male
Male
416 Participants206 Participants622 Participants
Smoking Status
Current
50 Participants20 Participants70 Participants
Smoking Status
Former
323 Participants168 Participants491 Participants
Smoking Status
Never
162 Participants82 Participants244 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
409 / 535223 / 270
other
Total, other adverse events
498 / 534246 / 258
serious
Total, serious adverse events
192 / 53484 / 258

Outcome results

Primary

Overall Survival (OS) in All Participants (Co-primary Endpoint)

OS was defined as the time from randomization to death from any cause. Median OS was calculated using the Kaplan-Meier method. Data for participants who were not reported as having died at the time of analysis were censored at the date they were last known to be alive. Data for participants who did not have postbaseline information were censored at the date of randomization.

Time frame: From randomization to the data cutoff date of 10 August 2020; up to 32.4 months

Population: The Intent-to-Treat (ITT) Analysis Set included all randomized patients

ArmMeasureValue (MEDIAN)
TislelizumabOverall Survival (OS) in All Participants (Co-primary Endpoint)17.2 months
DocetaxelOverall Survival (OS) in All Participants (Co-primary Endpoint)11.9 months
p-value: <0.000195% CI: [0.527, 0.778]1-sided Log Rank Test
Primary

Overall Survival (OS) in Programmed Cell Death Protein Ligand-1 (PD-L1)-Positive Participants (Co-primary Endpoint)

OS was defined as the time from randomization to death from any cause. Median OS was calculated using the Kaplan-Meier method. Data for participants who were not reported as having died at the time of analysis were censored at the date they were last known to be alive. Data for participants who did not have postbaseline information were censored at the date of randomization.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: The PD-L1-Positive Analysis Set included all randomized patients whose tumors were PD-L1 positive (defined as ≥ 25% of tumor cells with PD-L1 membrane staining).

ArmMeasureValue (MEDIAN)
TislelizumabOverall Survival (OS) in Programmed Cell Death Protein Ligand-1 (PD-L1)-Positive Participants (Co-primary Endpoint)19.3 months
DocetaxelOverall Survival (OS) in Programmed Cell Death Protein Ligand-1 (PD-L1)-Positive Participants (Co-primary Endpoint)11.5 months
p-value: <0.000195% CI: [0.407, 0.702]1-sided Log Rank Test
Secondary

Change From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain Scores

The EORTC QLQ-LC13 is the lung cancer module of the QLQ-C30 and measures lung cancer-specific disease and treatment symptoms. It includes 13 questions about specific symptoms in which participants respond based on a 4-point scale, where 1 is not at all and 4 is very much. Raw scores are transformed into a 0 to 100 scale via linear transformation. Lower scores indicate an improvement in symptoms.

Time frame: Baseline and Cycle 6 (each cycle was 3 weeks)

Population: The HRQoL Analysis Set included all randomized participants who received ≥ 1 dose of study drug and completed ≥ 1 HRQoL assessment; participants with available data at baseline and Cycle 6 are included in the analysis.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
TislelizumabChange From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresCoughing Scale-7.8 score on a scale
TislelizumabChange From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresDyspnoea Scale-1.2 score on a scale
TislelizumabChange From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresChest Pain Scale-0.9 score on a scale
DocetaxelChange From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresCoughing Scale0.5 score on a scale
DocetaxelChange From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresDyspnoea Scale2.0 score on a scale
DocetaxelChange From Baseline in EORTC Quality of Life Questionnaire Lung Cancer 13 Items (QLQ-LC13) Coughing, Dyspnoea, and Chest Pain ScoresChest Pain Scale1.3 score on a scale
Comparison: Analysis of Change from Baseline in Coughing Scale. The linear mixed-effect model for repeated measures (MMRM) includes baseline score, stratification factors, treatment arm, visit, and treatment arm by visit interaction as fixed effects and visit as a repeated measure.p-value: 0.000795% CI: [-13.02, -3.51]Mixed Models Analysis
Comparison: Analysis of Change from Baseline in Dyspnoea Scale. The linear mixed-effect model for repeated measures (MMRM) includes baseline score, stratification factors, treatment arm, visit, and treatment arm by visit interaction as fixed effects and visit as a repeated measure.p-value: 0.057995% CI: [-6.52, 0.11]Mixed Models Analysis
Comparison: Analysis of Change from Baseline in Chest Pain Scale. The linear mixed-effect model for repeated measures (MMRM) includes baseline score, stratification factors, treatment arm, visit, and treatment arm by visit interaction as fixed effects and visit as a repeated measure.p-value: 0.247295% CI: [-6.05, 1.56]Mixed Models Analysis
Secondary

Change From Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status (GHS)/Quality of Life (QOL) Score

The EORTC QLQ-30 contains 30 questions that incorporate 5 functional scales (physical functioning, role functioning, emotional functioning, cognitive functioning, and social functioning), 1 global health status scale, 3 symptom scales (fatigue, nausea and vomiting, and pain), and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). The participant answers questions about their health during the past week. There are 28 questions answered on a 4-point scale where 1 = Not at all (best) and 4 = Very Much (worst) and two global health quality of life (QOL) questions answered on a 7-point scale where 1 = Very poor and 7 = Excellent. Raw scores are transformed into a 0 to 100 scale via linear transformation. Higher scores in GHS/QoL score indicates better quality of life.

Time frame: Baseline and Cycle 6 (each cycle was 3 weeks)

Population: The HRQoL Analysis Set included all randomized participants who received ≥ 1 dose of study drug and completed ≥ 1 HRQoL assessment; participants with available data at baseline and Cycle 6 are included in the analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)
TislelizumabChange From Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status (GHS)/Quality of Life (QOL) Score2.4 score on a scale
DocetaxelChange From Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status (GHS)/Quality of Life (QOL) Score-3.4 score on a scale
Comparison: The linear mixed-effect model for repeated measures (MMRM) includes baseline score, stratification factors, treatment arm, visit, and treatment arm by visit interaction as fixed effects and visit as a repeated measure.p-value: 0.000895% CI: [2.38, 9.07]Mixed Models Analysis
Secondary

Change From Baseline in European Quality of Life 5-Dimensions, 5-level (EQ-5D-5L) Visual Analogue Scale (VAS)

The EQ-5D-5L measures health outcomes using a VAS to record a participant's self-rated health on a scale from 0 to 100, where 100 is 'the best health you can imagine' and 0 is 'the worst health you can imagine.' A higher score indicates better health outcomes.

Time frame: Baseline and Cycle 6 (each cycle was 3 weeks)

Population: The HRQoL Analysis Set included all randomized participants who received ≥ 1 dose of study drug and completed ≥ 1 HRQoL assessment; participants with available data at Baseline and Cycle 6 are included in the analysis.

ArmMeasureValue (MEAN)Dispersion
TislelizumabChange From Baseline in European Quality of Life 5-Dimensions, 5-level (EQ-5D-5L) Visual Analogue Scale (VAS)1.0 score on a scaleStandard Deviation 11.89
DocetaxelChange From Baseline in European Quality of Life 5-Dimensions, 5-level (EQ-5D-5L) Visual Analogue Scale (VAS)1.7 score on a scaleStandard Deviation 11.36
Secondary

Duration of Response (DOR) for All Responders

DoR was defined as the time from the first documented objective response to documented disease progression as assessed by the investigator using RECIST v1.1, or death from any cause, whichever occurred first. Median DOR was estimated using the Kaplan-Meier method. Progressive Disease (PD): At least a 20% increase in the size of target lesions with an absolute increase of at least 5 mm, or unequivocal progression of existing non-target lesions, or the appearance of any new lesions.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: Participants in the Intent-to-Treat Analysis Set who had an objective response

ArmMeasureValue (MEDIAN)
TislelizumabDuration of Response (DOR) for All Responders13.5 months
DocetaxelDuration of Response (DOR) for All Responders6.0 months
p-value: <0.000195% CI: [0.176, 0.536]Log Rank
Secondary

Duration of Response (DOR) in PD-L1-Positive Responders

DoR was defined as the time from the first documented objective response to documented disease progression as assessed by the investigator using RECIST v1.1, or death from any cause, whichever occurred first. Median DOR was estimated using the Kaplan-Meier method. Progressive Disease (PD): At least a 20% increase in the size of target lesions with an absolute increase of at least 5 mm, or unequivocal progression of existing non-target lesions, or the appearance of any new lesions.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: Participants in the PD-L1-Positive Analysis Set who had an objective response

ArmMeasureValue (MEDIAN)
TislelizumabDuration of Response (DOR) in PD-L1-Positive Responders11.9 months
DocetaxelDuration of Response (DOR) in PD-L1-Positive Responders4.2 months
p-value: <0.000195% CI: [0.066, 0.37]Log Rank
Secondary

Number of Participants With Treatment-emergent Adverse Events (TEAEs)

An adverse event is defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study drug, whether considered related to study drug or not. The investigator assessed the severity of each AE and graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v4.03 as defined below: * Grade 1: Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. * Grade 2: Moderate; minimal, local or noninvasive intervention indicated; limiting age-appropriate activities of daily living. * Grade 3: Severe or medically significant but not immediately life threatening. hospitalization or prolongation of hospitalization indicated; disabling; limiting selfcare activities of daily living. * Grade 4: Life threatening consequences; urgent intervention indicated. * Grade 5: Death related to AE.

Time frame: From first dose of study drug to 30 days after last dose, up to the study completion date cut-off date of 18 January 2024 (up to approximately 63 months)

Population: The Safety Analysis Set included all randomized patients who received ≥ 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
TislelizumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Any TEAE518 Participants
TislelizumabNumber of Participants With Treatment-emergent Adverse Events (TEAEs)≥ Grade 3 TEAE233 Participants
DocetaxelNumber of Participants With Treatment-emergent Adverse Events (TEAEs)Any TEAE254 Participants
DocetaxelNumber of Participants With Treatment-emergent Adverse Events (TEAEs)≥ Grade 3 TEAE193 Participants
Secondary

Objective Response Rate in PD-L1-Positive Participants

Objective response rate is defined as the percentage of participants who had a complete response (CR) or partial response (PR) as assessed by the investigator per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 Tumor assessments included computed tomography (CT) scans or magnetic resonance imaging (MRI), with preference for CT, of the chest, abdomen, and pelvis. CR: Disappearance of all target and non-target lesions and no new lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. PR: At least a 30% decrease in the size of target lesions and no progression of non-target lesions and no new lesions, or disappearance of all target lesions with persistence of one or more non-target lesion(s) and/or maintenance of tumor marker level above the normal limits and no new lesions.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: The PD-L1-Positive Analysis Set included all randomized patients whose tumors were PD-L1 positive (defined as ≥ 25% of tumor cells with PD-L1 membrane staining).

ArmMeasureValue (NUMBER)
TislelizumabObjective Response Rate in PD-L1-Positive Participants37.4 percentage of participants
DocetaxelObjective Response Rate in PD-L1-Positive Participants7.0 percentage of participants
p-value: <0.000195% CI: [3.721, 17.379]Cochran-Mantel-Haenszel
Secondary

Objective Response Rate (ORR) in All Participants

Objective response rate is defined as the percentage of participants who had a complete response (CR) or partial response (PR) as assessed by the investigator per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 Tumor assessments included computed tomography (CT) scans or magnetic resonance imaging (MRI), with preference for CT, of the chest, abdomen, and pelvis. CR: Disappearance of all target and non-target lesions and no new lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. PR: At least a 30% decrease in the size of target lesions and no progression of non-target lesions and no new lesions, or disappearance of all target lesions with persistence of one or more non-target lesion(s) and/or maintenance of tumor marker level above the normal limits and no new lesions.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: Intent-to-Treat Analysis Set

ArmMeasureValue (NUMBER)
TislelizumabObjective Response Rate (ORR) in All Participants22.6 percentage of participants
DocetaxelObjective Response Rate (ORR) in All Participants7.0 percentage of participants
p-value: <0.000195% CI: [2.336, 6.393]Cochran-Mantel-Haenszel
Secondary

Progression-free Survival in PD-L1 Positive Participants

PFS was defined as the time from randomization to the first objectively documented disease progression as assessed by the investigator per RECIST v1.1 or death from any cause, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: PD-L1 Positive Analysis Set

ArmMeasureValue (MEDIAN)
TislelizumabProgression-free Survival in PD-L1 Positive Participants6.5 months
DocetaxelProgression-free Survival in PD-L1 Positive Participants2.5 months
p-value: <0.000195% CI: [0.285, 0.494]Log Rank
Secondary

Progression-free Survival (PFS) in All Participants

PFS was defined as the time from randomization to the first objectively documented disease progression as assessed by the investigator per RECIST v1.1 or death from any cause, whichever occurred first. Median PFS was estimated using the Kaplan-Meier method.

Time frame: From randomization up to the final efficacy analysis data cut-off date of 15 July 2021; Up to 43 months

Population: Intent-to-Treat Analysis Set

ArmMeasureValue (MEDIAN)
TislelizumabProgression-free Survival (PFS) in All Participants4.2 months
DocetaxelProgression-free Survival (PFS) in All Participants2.6 months
p-value: <0.000195% CI: [0.528, 0.745]Log Rank

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026