Study of Pembrolizumab (MK-3475) Versus Platinum-Based Chemotherapy for Participants With Programmed Cell Death-Ligand 1 (PD-L1)-Positive Advanced or Metastatic Non-Small Cell Lung Cancer (MK-3475-042/KEYNOTE-042)

Sponsor
Merck Sharp & Dohme LLC (Industry)
Overall Status
Active, not recruiting
CT.gov ID
NCT02220894
Collaborator
(none)
1,274
2
94.4

Study Details

Study Description

Brief Summary

In this study, participants with programmed cell death ligand 1 (PD-L1)-positive non-small cell lung cancer (NSCLC) will be randomized to receive single agent pembrolizumab for up to 35 treatments or standard of care (SOC) platinum-based chemotherapy (carboplatin + paclitaxel or carboplatin + pemetrexed for 4 to 6 21-day cycles). Participants in the platinum-based chemotherapy arms with non-squamous tumor histologies may receive pemetrexed maintenance therapy after the 4 to 6 cycles of chemotherapy. The primary study hypothesis is that pembrolizumab prolongs overall survival (OS) compared to SOC chemotherapy.

Condition or Disease Intervention/Treatment Phase
Phase 3

Detailed Description

The global study for MK-3475-042 enrolled 1274 participants. Of the 1274 total participants enrolled in the global study, 92 were also enrolled in the China extension study for MK-3475-042 (NCT03850444).

Study Design

Study Type:
Interventional
Actual Enrollment :
1274 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Randomized, Open Label, Phase III Study of Overall Survival Comparing Pembrolizumab (MK-3475) Versus Platinum Based Chemotherapy in Treatment Naïve Subjects With PD-L1 Positive Advanced or Metastatic Non-Small Cell Lung Cancer (Keynote 042)
Actual Study Start Date :
Oct 30, 2014
Actual Primary Completion Date :
Feb 26, 2018
Anticipated Study Completion Date :
Sep 12, 2022

Arms and Interventions

Arm Intervention/Treatment
Experimental: Pembrolizumab

Participants receive pembrolizumab 200 mg intravenous (IV) on Day 1 of every 21-day cycle (every 3 weeks, or Q3W) for up to 35 treatments.

Biological: pembrolizumab
Other Names:
  • MK-3475
  • KEYTRUDA®
  • Active Comparator: SOC Treatment

    Participants receive carboplatin target dose Area Under Curve (AUC) 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 IV on Day 1 of every 21-day cycle (Q3W) for a maximum of 6 cycles OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 IV on Day 1 Q3W for a maximum of 6 cycles; participants with non-squamous histologies may go on to receive optional treatment with pemetrexed 500 mg/m^2 IV on Day 1 Q3W.

    Drug: carboplatin
    Other Names:
  • PARAPLATIN®
  • Drug: paclitaxel
    Other Names:
  • TAXOL®
  • Drug: pemetrexed
    Other Names:
  • ALIMTA®
  • Outcome Measures

    Primary Outcome Measures

    1. Overall Survival (OS) in Participants With a Tumor Proportion Score (TPS) of ≥50% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      OS was determined for participants with a TPS of ≥50% and was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow-up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was OS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The OS for participants with a TPS ≥50% is presented.

    2. Overall Survival (OS) in Participants With a Tumor Proportion Score (TPS) of ≥20% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      OS was determined for participants with a TPS of ≥20% and was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow-up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was OS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The OS for participants with a TPS ≥20% is presented.

    3. Overall Survival (OS) in Participants With a Tumor Proportion Score (TPS) of ≥1% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      OS was determined for participants with a TPS of ≥1% and was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow-up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was OS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The OS for participants with a TPS ≥1% is presented.

    Secondary Outcome Measures

    1. Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥50% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      PFS was determined for participants with a TPS of ≥50% and was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was PFS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The PFS for participants with a TPS ≥50% is presented.

    2. Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥20% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      PFS was determined for participants with a TPS of ≥20% and was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was PFS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The PFS for participants with a TPS ≥20% is presented.

    3. Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥1% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      PFS was determined for participants with a TPS of ≥1% and was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was PFS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The PFS for participants with a TPS ≥1% is presented.

    4. Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥50% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      ORR was determined for participants with a TPS of ≥50%. ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was ORR in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The percentage of participants who had a TPS ≥50% and who experienced a CR or PR is presented.

    5. Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥20% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      ORR was determined for participants with a TPS of ≥20%. ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was ORR in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The percentage of participants who had a TPS ≥20% and who experienced a CR or PR is presented.

    6. Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥1% [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      ORR was determined for participants with a TPS of ≥1%. ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was ORR in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The percentage of participants who had a TPS ≥1% and who experienced a CR or PR is presented.

    7. Number of Participants Who Experienced At Least One Adverse Event (AE) [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who experienced at least one AE is presented. These safety results are based on a 26-February-2018 data cutoff date.

    8. Number of Participants Who Discontinued Study Treatment Due to an Adverse Event (AE) [Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)]

      An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who discontinued study treatment due to an AE is presented. These safety results are based on a 26-February-2018 data cutoff date.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion criteria:
    • Histologically- or cytologically-confirmed diagnosis of advanced or metastatic NSCLC

    • PD-L1 positive tumor

    • Measureable disease based on Response Evaluation Criteria in Solid Tumors (RECIST) 1.1

    • Life expectancy of at least 3 months

    • No prior systemic chemotherapy for the treatment of the participant's advanced or metastatic disease (treatment with chemotherapy and/or radiation as part of neoadjuvant/adjuvant therapy is allowed as long as completed at least 6 months prior to diagnosis of advanced or metastatic disease)

    • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1

    • Adequate organ function

    • No prior malignancy, with the exception of basal cell carcinoma of the skin, superficial bladder cancer, squamous cell carcinoma of the skin, or in situ cancer, or has undergone potentially curative therapy with no evidence of that disease recurrence for 5 years since initiation of that therapy

    • Submission of formalin-fixed diagnostic tumor tissue (in the case of participants having received adjuvant systemic therapy, the tissue should be taken after completion of this therapy)

    • Female participants of childbearing potential must have a negative urine or serum pregnancy test and must be willing to use two adequate barrier methods of contraception or a barrier method plus a hormonal method starting with the screening visit through 120 days after the last dose of pembrolizumab or 180 days after the last dose of chemotherapeutic agents used in the study

    • Male participants with a female partner(s) of child-bearing potential must be willing to use two adequate barrier methods of contraception from screening through 120 days after the last dose of pembrolizumab or 180 days after the last dose of chemotherapeutic agents used in the study

    Exclusion criteria:
    • Epidermal growth factor receptor (EGFR)-sensitizing mutation and/or is echinoderm microtubule-associated protein-like 4(EML4) gene/anaplastic lymphoma kinase (ALK) gene fusion positive

    • Currently participating or has participated in a study of an investigational agent or using an investigational device within 4 weeks of the first dose of study therapy

    • No tumor specimen evaluable for PD-L1 expression by the central study laboratory

    • Squamous histology and received carboplatin in combination with paclitaxel in the adjuvant setting

    • Is receiving systemic steroid therapy ≤3 days prior to the first dose of study therapy or receiving any other form of immunosuppressive medication with the exception of daily steroid replacement therapy

    • The NSCLC can be treated with curative intent with either surgical resection and/or chemoradiation

    • Expected to require any other form of systemic or localized antineoplastic therapy while on study

    • Any prior systemic cytotoxic chemotherapy, biological therapy or major surgery within 3 weeks of the first dose of study therapy; received lung radiation therapy >30 Gy within 6 months of the first dose of study therapy

    • Prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or anti-cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) antibody (including ipilimumab or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways)

    • Known central nervous system metastases and/or carcinomatous meningitis

    • Active autoimmune disease that has required systemic treatment in the past 2 years

    • Had allogeneic tissue/solid organ transplantation

    • Interstitial lung disease or history of pneumonitis that has required oral or IV steroids

    • Has received or will receive a live vaccine within 30 days prior to the first study therapy (seasonal flu vaccines that do not contain live vaccine are permitted)

    • Active infection requiring intravenous systemic therapy

    • Known history of human immunodeficiency virus (HIV)

    • Known active Hepatitis B or C

    • Regular user (including "recreational use") of any illicit drugs or had a recent history (within the last year) of substance abuse (including alcohol)

    • Pregnant, breastfeeding, or expecting to conceive or father children within the projected duration of the study

    Contacts and Locations

    Locations

    No locations specified.

    Sponsors and Collaborators

    • Merck Sharp & Dohme LLC

    Investigators

    • Study Director: Medical Director, Merck Sharp & Dohme LLC

    Study Documents (Full-Text)

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Merck Sharp & Dohme LLC
    ClinicalTrials.gov Identifier:
    NCT02220894
    Other Study ID Numbers:
    • 3475-042
    • 152877
    • MK-3475-042
    • KEYNOTE-042
    • 2014-001473-14
    First Posted:
    Aug 20, 2014
    Last Update Posted:
    Aug 19, 2022
    Last Verified:
    Aug 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Merck Sharp & Dohme LLC
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Of the 1275 participants randomized (pembrolizumab=638, chemotherapy=637), 1 participant assigned to receive pembrolizumab died prior to randomization and was randomized in error. The intent to treat population was defined as participants alive at the time of randomization, so the actual randomized population included 637 participants in each arm.
    Pre-assignment Detail These interim results are based on a database cutoff date of 26-February-2018, at which time 448 participants were ongoing in the study.
    Arm/Group Title Pembrolizumab Chemotherapy (Standard of Care [SOC] Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by intravenous (IV) infusion on Day 1 every 3 weeks (Q3W) for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose Area Under Curve (AUC) 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Period Title: Overall Study
    STARTED 637 637
    Treated 636 615
    COMPLETED 0 0
    NOT COMPLETED 637 637

    Baseline Characteristics

    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment) Total
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W Total of all reporting groups
    Overall Participants 637 637 1274
    Age (Years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Years]
    62.5
    (9.9)
    63.1
    (9.4)
    62.8
    (9.7)
    Sex: Female, Male (Count of Participants)
    Female
    187
    29.4%
    185
    29%
    372
    29.2%
    Male
    450
    70.6%
    452
    71%
    902
    70.8%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    10
    1.6%
    5
    0.8%
    15
    1.2%
    Asian
    189
    29.7%
    187
    29.4%
    376
    29.5%
    Native Hawaiian or Other Pacific Islander
    0
    0%
    1
    0.2%
    1
    0.1%
    Black or African American
    10
    1.6%
    13
    2%
    23
    1.8%
    White
    398
    62.5%
    412
    64.7%
    810
    63.6%
    More than one race
    30
    4.7%
    19
    3%
    49
    3.8%
    Unknown or Not Reported
    0
    0%
    0
    0%
    0
    0%
    Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) (Count of Participants)
    ECOG PS=0
    198
    31.1%
    192
    30.1%
    390
    30.6%
    ECOG PS=1
    439
    68.9%
    445
    69.9%
    884
    69.4%
    Programmed Cell Death-Ligand 1 (PD-L1) Tumor Status (Count of Participants)
    TPS=≥50%
    299
    46.9%
    300
    47.1%
    599
    47%
    TPS=20-49%
    114
    17.9%
    105
    16.5%
    219
    17.2%
    TPS=1-19%
    224
    35.2%
    232
    36.4%
    456
    35.8%
    TPS=<1%
    0
    0%
    0
    0%
    0
    0%
    Tumor Histology (Count of Participants)
    Squamous
    243
    38.1%
    249
    39.1%
    492
    38.6%
    Non-squamous
    394
    61.9%
    388
    60.9%
    782
    61.4%

    Outcome Measures

    1. Primary Outcome
    Title Overall Survival (OS) in Participants With a Tumor Proportion Score (TPS) of ≥50%
    Description OS was determined for participants with a TPS of ≥50% and was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow-up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was OS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The OS for participants with a TPS ≥50% is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥50%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 299 300
    Median (95% Confidence Interval) [Months]
    20.0
    12.2
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0003
    Comments One-sided p-value based on stratified log-rank test
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.69
    Confidence Interval (2-Sided) 95%
    0.56 to 0.85
    Parameter Dispersion Type:
    Value:
    Estimation Comments Hazard ratio based on Cox regression model with treatment as a covariate stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), and histology (squamous vs. non-squamous).
    2. Primary Outcome
    Title Overall Survival (OS) in Participants With a Tumor Proportion Score (TPS) of ≥20%
    Description OS was determined for participants with a TPS of ≥20% and was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow-up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was OS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The OS for participants with a TPS ≥20% is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥20%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 413 405
    Median (95% Confidence Interval) [Months]
    17.7
    13.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0020
    Comments One-sided p-value based on stratified log-rank test
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.77
    Confidence Interval (2-Sided) 95%
    0.64 to 0.92
    Parameter Dispersion Type:
    Value:
    Estimation Comments Hazard ratio based on Cox regression model with treatment as a covariate stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), PD-L1 expression status (TPS=≥50% vs. TPS=1-49%) and histology (squamous vs. non-squamous).
    3. Primary Outcome
    Title Overall Survival (OS) in Participants With a Tumor Proportion Score (TPS) of ≥1%
    Description OS was determined for participants with a TPS of ≥1% and was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow-up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was OS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The OS for participants with a TPS ≥1% is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥1%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 637 637
    Median (95% Confidence Interval) [Months]
    16.7
    12.1
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0018
    Comments One-sided p-value based on stratified log-rank test
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.81
    Confidence Interval (2-Sided) 95%
    0.71 to 0.93
    Parameter Dispersion Type:
    Value:
    Estimation Comments Hazard ratio based on Cox regression model with treatment as a covariate stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), PD-L1 expression status (TPS=≥50% vs. TPS=1-49%) and histology (squamous vs. non-squamous).
    4. Secondary Outcome
    Title Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥50%
    Description PFS was determined for participants with a TPS of ≥50% and was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was PFS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The PFS for participants with a TPS ≥50% is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥50%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 299 300
    Median (95% Confidence Interval) [Months]
    6.9
    6.4
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0187
    Comments One-sided p-value based on stratified log-rank test
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.82
    Confidence Interval (2-Sided) 95%
    0.68 to 0.99
    Parameter Dispersion Type:
    Value:
    Estimation Comments Hazard ratio based on Cox regression model with treatment as a covariate stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1) and histology (squamous vs. non-squamous).
    5. Secondary Outcome
    Title Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥20%
    Description PFS was determined for participants with a TPS of ≥20% and was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was PFS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The PFS for participants with a TPS ≥20% is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥20%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 413 405
    Median (95% Confidence Interval) [Months]
    6.2
    6.6
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.2331
    Comments One-sided p-value based on stratified log-rank test
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.94
    Confidence Interval (2-Sided) 95%
    0.80 to 1.11
    Parameter Dispersion Type:
    Value:
    Estimation Comments Hazard ratio based on Cox regression model with treatment as a covariate stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), PD-L1 expression status (TPS=≥50% vs. TPS=1-49%) and histology (squamous vs. non-squamous).
    6. Secondary Outcome
    Title Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥1%
    Description PFS was determined for participants with a TPS of ≥1% and was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was PFS in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The PFS for participants with a TPS ≥1% is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥1%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 637 637
    Median (95% Confidence Interval) [Months]
    5.4
    6.5
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.8445
    Comments One-sided p-value based on stratified log-rank test
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 1.07
    Confidence Interval (2-Sided) 95%
    0.94 to 1.21
    Parameter Dispersion Type:
    Value:
    Estimation Comments Hazard ratio based on Cox regression model with treatment as a covariate stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), PD-L1 expression status (TPS=≥50% vs. TPS=1-49%) and histology (squamous vs. non-squamous).
    7. Secondary Outcome
    Title Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥50%
    Description ORR was determined for participants with a TPS of ≥50%. ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was ORR in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The percentage of participants who had a TPS ≥50% and who experienced a CR or PR is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥50%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 299 300
    Number (95% Confidence Interval) [Percentage of participants]
    39.5
    6.2%
    32.0
    5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0289
    Comments One-sided p-value for testing. H0: difference in percentages=0 vs. H1: difference in percentages >0
    Method Stratified Miettinen and Nurminen
    Comments
    Method of Estimation Estimation Parameter Difference in Percentage (DP)
    Estimated Value 7.4
    Confidence Interval (2-Sided) 95%
    -0.2 to 15.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments DP for pembrolizumab vs. chemotherapy based on Miettinen & Nurminen method stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1) and histology (squamous vs. nonsquamous).
    8. Secondary Outcome
    Title Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥20%
    Description ORR was determined for participants with a TPS of ≥20%. ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was ORR in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The percentage of participants who had a TPS ≥20% and who experienced a CR or PR is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥20%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 413 405
    Number (95% Confidence Interval) [Percentage of participants]
    33.4
    5.2%
    28.9
    4.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0638
    Comments One-sided p-value for testing. H0: difference in percentages=0 vs. H1: difference in percentages >0
    Method Stratified Miettinen and Nurminen
    Comments
    Method of Estimation Estimation Parameter Difference in Percentage (DP)
    Estimated Value 4.9
    Confidence Interval (2-Sided) 95%
    -1.4 to 11.1
    Parameter Dispersion Type:
    Value:
    Estimation Comments DP for pembrolizumab vs. chemotherapy based on Miettinen & Nurminen method stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), PD-L1 expression status (TPS=≥50% vs. TPS=1-49%) and histology (squamous vs. non-squamous).
    9. Secondary Outcome
    Title Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR) in Participants With a Tumor Proportion Score (TPS) of ≥1%
    Description ORR was determined for participants with a TPS of ≥1%. ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The efficacy hypothesis was analyzed using a sequential testing strategy that involved testing a hypothesis only if the superiority of pembrolizumab over chemotherapy was established for all the preceding hypotheses. The order of testing was ORR in participants with TPS≥50%, then with TPS≥20%, and finally with TPS≥1%. The percentage of participants who had a TPS ≥1% and who experienced a CR or PR is presented.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population included all participants who were alive at the time of randomization and had a TPS of ≥1%.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 637 637
    Number (95% Confidence Interval) [Percentage of participants]
    27.3
    4.3%
    26.5
    4.2%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Pembrolizumab, Chemotherapy (SOC Treatment)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.3798
    Comments One-sided p-value for testing. H0: difference in percentages=0 vs. H1: difference in percentages >0
    Method Stratified Miettinen and Nurminen
    Comments
    Method of Estimation Estimation Parameter Difference in Percentage (DP)
    Estimated Value 0.7
    Confidence Interval (2-Sided) 95%
    -4.0 to 5.5
    Parameter Dispersion Type:
    Value:
    Estimation Comments DP for pembrolizumab vs. chemotherapy based on Miettinen & Nurminen method stratified by geographic region (East Asia vs. non-East Asia), ECOG PS (0 vs. 1), PD-L1 expression status (TPS=≥50% vs. TPS=1-49%) and histology (squamous vs. non-squamous).
    10. Secondary Outcome
    Title Number of Participants Who Experienced At Least One Adverse Event (AE)
    Description An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who experienced at least one AE is presented. These safety results are based on a 26-February-2018 data cutoff date.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population consisted of all participants who received ≥1 dose of study treatment.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 636 615
    Count of Participants [Participants]
    610
    95.8%
    606
    95.1%
    11. Secondary Outcome
    Title Number of Participants Who Discontinued Study Treatment Due to an Adverse Event (AE)
    Description An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who discontinued study treatment due to an AE is presented. These safety results are based on a 26-February-2018 data cutoff date.
    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)

    Outcome Measure Data

    Analysis Population Description
    The analysis population consisted of all participants who received ≥1 dose of study treatment.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    Measure Participants 636 615
    Count of Participants [Participants]
    122
    19.2%
    89
    14%

    Adverse Events

    Time Frame Through Database Cutoff Date of 26-Feb-2018 (up to approximately 38 months)
    Adverse Event Reporting Description Population: All participants receiving ≥1 dose of study treatment. Per protocol, progression of cancer under study was not considered an AE unless related to study drug. Therefore, MedDRA preferred terms "Neoplasm progression", "Malignant neoplasm progression" & "Disease progression" not related to study drug are excluded as AEs.
    Arm/Group Title Pembrolizumab Chemotherapy (SOC Treatment)
    Arm/Group Description Participants received pembrolizumab 200 mg by IV infusion on Day 1 Q3W for a maximum of 35 cycles (21-day cycles) Participants received carboplatin at target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + paclitaxel 200 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles) OR carboplatin target dose AUC 5 (maximum dose 750 mg) or AUC 6 (maximum dose 900 mg) + pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W for a maximum of 6 cycles (21-day cycles). Participants with non-squamous histologies received optional additional maintenance treatment with pemetrexed 500 mg/m^2 by IV infusion on Day 1 Q3W
    All Cause Mortality
    Pembrolizumab Chemotherapy (SOC Treatment)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 370/636 (58.2%) 427/615 (69.4%)
    Serious Adverse Events
    Pembrolizumab Chemotherapy (SOC Treatment)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 259/636 (40.7%) 187/615 (30.4%)
    Blood and lymphatic system disorders
    Anaemia 3/636 (0.5%) 3 17/615 (2.8%) 24
    Febrile neutropenia 1/636 (0.2%) 1 15/615 (2.4%) 15
    Leukopenia 0/636 (0%) 0 2/615 (0.3%) 2
    Lymphadenopathy 0/636 (0%) 0 1/615 (0.2%) 1
    Neutropenia 0/636 (0%) 0 6/615 (1%) 6
    Normochromic anaemia 0/636 (0%) 0 1/615 (0.2%) 1
    Splenic infarction 1/636 (0.2%) 1 0/615 (0%) 0
    Thrombocytopenia 1/636 (0.2%) 1 4/615 (0.7%) 4
    Agranulocytosis 0/636 (0%) 0 1/615 (0.2%) 1
    Bone marrow failure 0/636 (0%) 0 1/615 (0.2%) 1
    Pancytopenia 0/636 (0%) 0 3/615 (0.5%) 3
    Cardiac disorders
    Acute coronary syndrome 0/636 (0%) 0 3/615 (0.5%) 3
    Acute myocardial infarction 1/636 (0.2%) 1 0/615 (0%) 0
    Aortic valve stenosis 1/636 (0.2%) 1 0/615 (0%) 0
    Arrhythmia 0/636 (0%) 0 1/615 (0.2%) 1
    Atrial fibrillation 2/636 (0.3%) 2 0/615 (0%) 0
    Atrial flutter 1/636 (0.2%) 1 1/615 (0.2%) 1
    Cardiac arrest 3/636 (0.5%) 3 0/615 (0%) 0
    Cardiac failure 1/636 (0.2%) 1 1/615 (0.2%) 1
    Cardiac failure acute 2/636 (0.3%) 2 0/615 (0%) 0
    Cardiac tamponade 3/636 (0.5%) 3 0/615 (0%) 0
    Cardio-respiratory arrest 2/636 (0.3%) 2 1/615 (0.2%) 1
    Cardiopulmonary failure 0/636 (0%) 0 1/615 (0.2%) 1
    Myocardial infarction 3/636 (0.5%) 3 0/615 (0%) 0
    Myocarditis 1/636 (0.2%) 1 0/615 (0%) 0
    Pericardial effusion 6/636 (0.9%) 6 0/615 (0%) 0
    Pericarditis 2/636 (0.3%) 2 0/615 (0%) 0
    Sinus tachycardia 0/636 (0%) 0 1/615 (0.2%) 1
    Supraventricular tachycardia 1/636 (0.2%) 1 1/615 (0.2%) 1
    Ventricular fibrillation 1/636 (0.2%) 1 0/615 (0%) 0
    Ear and labyrinth disorders
    Vertigo 2/636 (0.3%) 2 0/615 (0%) 0
    Endocrine disorders
    Adrenal insufficiency 2/636 (0.3%) 2 0/615 (0%) 0
    Hyperthyroidism 1/636 (0.2%) 1 0/615 (0%) 0
    Hypophysitis 2/636 (0.3%) 2 0/615 (0%) 0
    Hypopituitarism 1/636 (0.2%) 1 0/615 (0%) 0
    Hypothyroidism 1/636 (0.2%) 1 0/615 (0%) 0
    Hypercalcaemia of malignancy 1/636 (0.2%) 1 0/615 (0%) 0
    Gastrointestinal disorders
    Abdominal pain 0/636 (0%) 0 1/615 (0.2%) 1
    Colitis 5/636 (0.8%) 5 0/615 (0%) 0
    Constipation 1/636 (0.2%) 1 0/615 (0%) 0
    Diarrhoea 4/636 (0.6%) 4 2/615 (0.3%) 2
    Duodenal perforation 1/636 (0.2%) 1 0/615 (0%) 0
    Dyspepsia 1/636 (0.2%) 1 0/615 (0%) 0
    Enterocolitis 0/636 (0%) 0 1/615 (0.2%) 1
    Gastric haemorrhage 1/636 (0.2%) 2 0/615 (0%) 0
    Gastric ulcer haemorrhage 2/636 (0.3%) 2 0/615 (0%) 0
    Gastritis 1/636 (0.2%) 1 0/615 (0%) 0
    Gastrointestinal haemorrhage 1/636 (0.2%) 2 1/615 (0.2%) 1
    Gastrointestinal ulcer 0/636 (0%) 0 1/615 (0.2%) 1
    Glossitis 1/636 (0.2%) 1 0/615 (0%) 0
    Ileus 1/636 (0.2%) 1 0/615 (0%) 0
    Incarcerated inguinal hernia 1/636 (0.2%) 1 0/615 (0%) 0
    Inguinal hernia 0/636 (0%) 0 2/615 (0.3%) 2
    Intestinal ischaemia 1/636 (0.2%) 1 0/615 (0%) 0
    Melaena 1/636 (0.2%) 1 0/615 (0%) 0
    Nausea 3/636 (0.5%) 3 2/615 (0.3%) 2
    Neutropenic colitis 0/636 (0%) 0 1/615 (0.2%) 1
    Oesophageal fistula 1/636 (0.2%) 1 0/615 (0%) 0
    Pancreatic mass 1/636 (0.2%) 1 0/615 (0%) 0
    Rectal ulcer 1/636 (0.2%) 1 0/615 (0%) 0
    Stomatitis 2/636 (0.3%) 2 0/615 (0%) 0
    Upper gastrointestinal haemorrhage 0/636 (0%) 0 1/615 (0.2%) 2
    Volvulus 1/636 (0.2%) 1 0/615 (0%) 0
    Vomiting 2/636 (0.3%) 2 2/615 (0.3%) 2
    General disorders
    Accidental death 1/636 (0.2%) 1 0/615 (0%) 0
    Asthenia 1/636 (0.2%) 1 4/615 (0.7%) 4
    Death 10/636 (1.6%) 10 5/615 (0.8%) 5
    Fatigue 1/636 (0.2%) 1 1/615 (0.2%) 1
    General physical health deterioration 1/636 (0.2%) 1 0/615 (0%) 0
    Ill-defined disorder 1/636 (0.2%) 1 0/615 (0%) 0
    Malaise 1/636 (0.2%) 1 2/615 (0.3%) 2
    Performance status decreased 1/636 (0.2%) 1 0/615 (0%) 0
    Pyrexia 4/636 (0.6%) 4 1/615 (0.2%) 1
    Sudden death 1/636 (0.2%) 1 0/615 (0%) 0
    Sudden cardiac death 0/636 (0%) 0 1/615 (0.2%) 1
    Hepatobiliary disorders
    Autoimmune hepatitis 4/636 (0.6%) 4 0/615 (0%) 0
    Hepatic function abnormal 2/636 (0.3%) 2 1/615 (0.2%) 1
    Hepatitis 1/636 (0.2%) 1 0/615 (0%) 0
    Hepatitis acute 1/636 (0.2%) 1 0/615 (0%) 0
    Hepatitis toxic 1/636 (0.2%) 1 0/615 (0%) 0
    Immune system disorders
    Anaphylactic reaction 1/636 (0.2%) 1 2/615 (0.3%) 2
    Contrast media allergy 1/636 (0.2%) 1 0/615 (0%) 0
    Infections and infestations
    Abdominal sepsis 0/636 (0%) 0 1/615 (0.2%) 1
    Amoebiasis 0/636 (0%) 0 1/615 (0.2%) 1
    Amoebic dysentery 1/636 (0.2%) 1 0/615 (0%) 0
    Anal abscess 0/636 (0%) 0 1/615 (0.2%) 1
    Biliary sepsis 0/636 (0%) 0 1/615 (0.2%) 1
    Bronchitis 7/636 (1.1%) 7 2/615 (0.3%) 2
    Candida infection 0/636 (0%) 0 1/615 (0.2%) 1
    Cellulitis 1/636 (0.2%) 1 2/615 (0.3%) 3
    Clostridium difficile infection 0/636 (0%) 0 1/615 (0.2%) 1
    Cystitis 1/636 (0.2%) 1 0/615 (0%) 0
    Device related infection 1/636 (0.2%) 1 0/615 (0%) 0
    Diverticulitis 1/636 (0.2%) 1 1/615 (0.2%) 1
    Enterocolitis infectious 1/636 (0.2%) 1 1/615 (0.2%) 1
    Gastroenteritis 1/636 (0.2%) 1 0/615 (0%) 0
    Gastroenteritis viral 1/636 (0.2%) 1 1/615 (0.2%) 1
    Herpes zoster 1/636 (0.2%) 1 0/615 (0%) 0
    Infection 1/636 (0.2%) 1 1/615 (0.2%) 1
    Infectious pleural effusion 1/636 (0.2%) 1 0/615 (0%) 0
    Infective exacerbation of bronchiectasis 1/636 (0.2%) 1 0/615 (0%) 0
    Infective exacerbation of chronic obstructive airways disease 1/636 (0.2%) 1 1/615 (0.2%) 1
    Influenza 2/636 (0.3%) 2 1/615 (0.2%) 1
    Laryngitis 1/636 (0.2%) 1 0/615 (0%) 0
    Lower respiratory tract infection 0/636 (0%) 0 1/615 (0.2%) 1
    Lung abscess 1/636 (0.2%) 1 2/615 (0.3%) 2
    Lung infection 1/636 (0.2%) 1 1/615 (0.2%) 2
    Neutropenic sepsis 0/636 (0%) 0 2/615 (0.3%) 2
    Oesophageal candidiasis 0/636 (0%) 0 1/615 (0.2%) 1
    Peritonitis 0/636 (0%) 0 2/615 (0.3%) 2
    Pleural infection 1/636 (0.2%) 2 0/615 (0%) 0
    Pneumocystis jirovecii pneumonia 0/636 (0%) 0 1/615 (0.2%) 1
    Pneumonia 47/636 (7.4%) 51 32/615 (5.2%) 38
    Pneumonia bacterial 3/636 (0.5%) 3 2/615 (0.3%) 2
    Pneumonia klebsiella 0/636 (0%) 0 1/615 (0.2%) 1
    Post procedural cellulitis 1/636 (0.2%) 1 0/615 (0%) 0
    Pulmonary sepsis 1/636 (0.2%) 1 2/615 (0.3%) 2
    Respiratory tract infection 1/636 (0.2%) 1 2/615 (0.3%) 2
    Sepsis 4/636 (0.6%) 4 2/615 (0.3%) 3
    Septic shock 2/636 (0.3%) 2 3/615 (0.5%) 3
    Upper respiratory tract infection 0/636 (0%) 0 1/615 (0.2%) 1
    Urinary tract infection 1/636 (0.2%) 1 1/615 (0.2%) 1
    Vascular access site infection 0/636 (0%) 0 1/615 (0.2%) 1
    Viral infection 0/636 (0%) 0 1/615 (0.2%) 1
    Klebsiella infection 1/636 (0.2%) 1 0/615 (0%) 0
    Injury, poisoning and procedural complications
    Cervical vertebral fracture 1/636 (0.2%) 1 0/615 (0%) 0
    Femur fracture 0/636 (0%) 0 1/615 (0.2%) 1
    Hip fracture 1/636 (0.2%) 1 0/615 (0%) 0
    Infusion related reaction 2/636 (0.3%) 2 0/615 (0%) 0
    Lumbar vertebral fracture 1/636 (0.2%) 1 0/615 (0%) 0
    Radius fracture 1/636 (0.2%) 1 0/615 (0%) 0
    Upper limb fracture 1/636 (0.2%) 1 0/615 (0%) 0
    Investigations
    Alanine aminotransferase increased 3/636 (0.5%) 3 2/615 (0.3%) 2
    Aspartate aminotransferase increased 3/636 (0.5%) 3 1/615 (0.2%) 1
    Blood bilirubin increased 2/636 (0.3%) 2 0/615 (0%) 0
    Blood calcium decreased 1/636 (0.2%) 1 0/615 (0%) 0
    Blood pressure increased 1/636 (0.2%) 1 0/615 (0%) 0
    Blood prolactin increased 1/636 (0.2%) 1 0/615 (0%) 0
    Neutrophil count decreased 0/636 (0%) 0 4/615 (0.7%) 4
    Platelet count decreased 0/636 (0%) 0 2/615 (0.3%) 3
    Urine output decreased 1/636 (0.2%) 1 0/615 (0%) 0
    Metabolism and nutrition disorders
    Decreased appetite 3/636 (0.5%) 3 3/615 (0.5%) 3
    Dehydration 1/636 (0.2%) 1 2/615 (0.3%) 2
    Diabetes mellitus 1/636 (0.2%) 1 0/615 (0%) 0
    Electrolyte imbalance 0/636 (0%) 0 2/615 (0.3%) 2
    Hypercalcaemia 3/636 (0.5%) 3 2/615 (0.3%) 2
    Hyperkalaemia 1/636 (0.2%) 1 0/615 (0%) 0
    Hyperuricaemia 0/636 (0%) 0 2/615 (0.3%) 3
    Hypoglycaemia 1/636 (0.2%) 1 2/615 (0.3%) 2
    Hyponatraemia 3/636 (0.5%) 3 1/615 (0.2%) 1
    Ketoacidosis 0/636 (0%) 0 1/615 (0.2%) 1
    Type 2 diabetes mellitus 0/636 (0%) 0 1/615 (0.2%) 1
    Musculoskeletal and connective tissue disorders
    Arthralgia 1/636 (0.2%) 1 0/615 (0%) 0
    Back pain 1/636 (0.2%) 1 1/615 (0.2%) 1
    Myalgia 0/636 (0%) 0 1/615 (0.2%) 1
    Neck pain 1/636 (0.2%) 1 0/615 (0%) 0
    Osteitis 0/636 (0%) 0 1/615 (0.2%) 1
    Osteoporotic fracture 1/636 (0.2%) 1 0/615 (0%) 0
    Pain in extremity 0/636 (0%) 0 1/615 (0.2%) 1
    Rotator cuff syndrome 1/636 (0.2%) 1 0/615 (0%) 0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Adenocarcinoma gastric 1/636 (0.2%) 1 0/615 (0%) 0
    Anogenital warts 1/636 (0.2%) 1 0/615 (0%) 0
    Gastric cancer 1/636 (0.2%) 1 0/615 (0%) 0
    Infected neoplasm 1/636 (0.2%) 1 0/615 (0%) 0
    Keratoacanthoma 1/636 (0.2%) 1 0/615 (0%) 0
    Lung cancer metastatic 0/636 (0%) 0 1/615 (0.2%) 1
    Malignant neoplasm progression 1/636 (0.2%) 1 0/615 (0%) 0
    Metastases to bone 2/636 (0.3%) 3 0/615 (0%) 0
    Oesophageal carcinoma 2/636 (0.3%) 2 0/615 (0%) 0
    Squamous cell carcinoma 0/636 (0%) 0 1/615 (0.2%) 1
    Squamous cell carcinoma of the tongue 1/636 (0.2%) 1 0/615 (0%) 0
    Tumour necrosis 0/636 (0%) 0 1/615 (0.2%) 1
    Malignant pleural effusion 1/636 (0.2%) 1 0/615 (0%) 0
    Metastases to central nervous system 0/636 (0%) 0 1/615 (0.2%) 1
    Neoplasm malignant 1/636 (0.2%) 1 0/615 (0%) 0
    Tumour embolism 1/636 (0.2%) 1 0/615 (0%) 0
    Nervous system disorders
    Altered state of consciousness 0/636 (0%) 0 1/615 (0.2%) 1
    Ataxia 0/636 (0%) 0 1/615 (0.2%) 1
    Cerebral infarction 0/636 (0%) 0 1/615 (0.2%) 1
    Cerebral ischaemia 2/636 (0.3%) 2 0/615 (0%) 0
    Cerebrovascular accident 2/636 (0.3%) 2 3/615 (0.5%) 3
    Coma 1/636 (0.2%) 1 0/615 (0%) 0
    Dizziness 0/636 (0%) 0 1/615 (0.2%) 1
    Embolic stroke 1/636 (0.2%) 1 0/615 (0%) 0
    Encephalopathy 1/636 (0.2%) 1 0/615 (0%) 0
    Epilepsy 1/636 (0.2%) 1 1/615 (0.2%) 1
    Headache 1/636 (0.2%) 1 0/615 (0%) 0
    Ischaemic stroke 1/636 (0.2%) 1 1/615 (0.2%) 1
    Loss of consciousness 0/636 (0%) 0 1/615 (0.2%) 1
    Metabolic encephalopathy 0/636 (0%) 0 1/615 (0.2%) 1
    Neuropathy peripheral 0/636 (0%) 0 1/615 (0.2%) 1
    Seizure 1/636 (0.2%) 1 2/615 (0.3%) 3
    Spinal cord compression 1/636 (0.2%) 1 1/615 (0.2%) 1
    Syncope 0/636 (0%) 0 2/615 (0.3%) 2
    Transient ischaemic attack 1/636 (0.2%) 1 0/615 (0%) 0
    Brain injury 1/636 (0.2%) 1 0/615 (0%) 0
    Hemiparesis 1/636 (0.2%) 1 0/615 (0%) 0
    Psychiatric disorders
    Completed suicide 0/636 (0%) 0 1/615 (0.2%) 1
    Confusional state 1/636 (0.2%) 1 0/615 (0%) 0
    Delirium 2/636 (0.3%) 2 2/615 (0.3%) 2
    Depression 2/636 (0.3%) 2 0/615 (0%) 0
    Agitation 0/636 (0%) 0 1/615 (0.2%) 1
    Mental disorder 1/636 (0.2%) 1 0/615 (0%) 0
    Renal and urinary disorders
    Acute kidney injury 3/636 (0.5%) 3 2/615 (0.3%) 2
    Glomerulonephritis membranous 1/636 (0.2%) 1 0/615 (0%) 0
    Hydronephrosis 0/636 (0%) 0 1/615 (0.2%) 1
    Nephritis 1/636 (0.2%) 1 0/615 (0%) 0
    Nephropathy 0/636 (0%) 0 1/615 (0.2%) 1
    Renal failure 1/636 (0.2%) 1 0/615 (0%) 0
    Renal tubular necrosis 1/636 (0.2%) 1 0/615 (0%) 0
    Urinary retention 0/636 (0%) 0 1/615 (0.2%) 1
    Reproductive system and breast disorders
    Ovarian cyst torsion 1/636 (0.2%) 1 0/615 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Acute pulmonary oedema 0/636 (0%) 0 1/615 (0.2%) 1
    Acute respiratory failure 1/636 (0.2%) 1 0/615 (0%) 0
    Asthma 2/636 (0.3%) 2 0/615 (0%) 0
    Atelectasis 2/636 (0.3%) 2 0/615 (0%) 0
    Bronchitis chronic 1/636 (0.2%) 1 0/615 (0%) 0
    Chronic obstructive pulmonary disease 3/636 (0.5%) 4 5/615 (0.8%) 5
    Chronic respiratory failure 1/636 (0.2%) 1 0/615 (0%) 0
    Dyspnoea 8/636 (1.3%) 9 2/615 (0.3%) 2
    Haemoptysis 7/636 (1.1%) 8 1/615 (0.2%) 1
    Hydrothorax 2/636 (0.3%) 2 0/615 (0%) 0
    Interstitial lung disease 4/636 (0.6%) 6 1/615 (0.2%) 1
    Lung disorder 0/636 (0%) 0 1/615 (0.2%) 1
    Oesophagobronchial fistula 0/636 (0%) 0 1/615 (0.2%) 1
    Pleural effusion 14/636 (2.2%) 16 5/615 (0.8%) 7
    Pleurisy 1/636 (0.2%) 1 0/615 (0%) 0
    Pneumonia aspiration 1/636 (0.2%) 1 1/615 (0.2%) 1
    Pneumonitis 25/636 (3.9%) 26 1/615 (0.2%) 1
    Pneumothorax 3/636 (0.5%) 3 1/615 (0.2%) 1
    Pulmonary artery thrombosis 1/636 (0.2%) 1 0/615 (0%) 0
    Pulmonary embolism 15/636 (2.4%) 15 11/615 (1.8%) 11
    Pulmonary fistula 0/636 (0%) 0 1/615 (0.2%) 1
    Pulmonary haemorrhage 4/636 (0.6%) 4 2/615 (0.3%) 2
    Pulmonary oedema 1/636 (0.2%) 1 2/615 (0.3%) 2
    Pulmonary thrombosis 0/636 (0%) 0 1/615 (0.2%) 1
    Respiratory distress 0/636 (0%) 0 2/615 (0.3%) 2
    Respiratory failure 4/636 (0.6%) 4 4/615 (0.7%) 4
    Tracheal stenosis 2/636 (0.3%) 2 0/615 (0%) 0
    Skin and subcutaneous tissue disorders
    Drug eruption 0/636 (0%) 0 1/615 (0.2%) 2
    Rash 1/636 (0.2%) 1 0/615 (0%) 0
    Rash maculo-papular 1/636 (0.2%) 1 0/615 (0%) 0
    Vascular disorders
    Aortic aneurysm 0/636 (0%) 0 1/615 (0.2%) 1
    Arterial thrombosis 0/636 (0%) 0 1/615 (0.2%) 1
    Deep vein thrombosis 1/636 (0.2%) 1 1/615 (0.2%) 1
    Embolism 2/636 (0.3%) 2 0/615 (0%) 0
    Hypertension 0/636 (0%) 0 1/615 (0.2%) 1
    Hypotension 0/636 (0%) 0 1/615 (0.2%) 1
    Jugular vein thrombosis 0/636 (0%) 0 1/615 (0.2%) 1
    Peripheral artery occlusion 1/636 (0.2%) 1 0/615 (0%) 0
    Peripheral ischaemia 1/636 (0.2%) 1 0/615 (0%) 0
    Superior vena cava syndrome 0/636 (0%) 0 1/615 (0.2%) 1
    Venous thrombosis 0/636 (0%) 0 1/615 (0.2%) 1
    Hypovolaemic shock 1/636 (0.2%) 1 0/615 (0%) 0
    Poor venous access 1/636 (0.2%) 1 0/615 (0%) 0
    Venous thrombosis limb 0/636 (0%) 0 1/615 (0.2%) 1
    Other (Not Including Serious) Adverse Events
    Pembrolizumab Chemotherapy (SOC Treatment)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 527/636 (82.9%) 576/615 (93.7%)
    Blood and lymphatic system disorders
    Anaemia 97/636 (15.3%) 118 248/615 (40.3%) 317
    Leukopenia 10/636 (1.6%) 18 35/615 (5.7%) 63
    Neutropenia 5/636 (0.8%) 7 84/615 (13.7%) 175
    Thrombocytopenia 5/636 (0.8%) 6 55/615 (8.9%) 82
    Endocrine disorders
    Hyperthyroidism 38/636 (6%) 38 4/615 (0.7%) 4
    Hypothyroidism 76/636 (11.9%) 95 9/615 (1.5%) 9
    Gastrointestinal disorders
    Constipation 76/636 (11.9%) 96 130/615 (21.1%) 166
    Diarrhoea 72/636 (11.3%) 90 74/615 (12%) 102
    Nausea 71/636 (11.2%) 95 195/615 (31.7%) 398
    Stomatitis 16/636 (2.5%) 18 33/615 (5.4%) 40
    Vomiting 49/636 (7.7%) 59 106/615 (17.2%) 164
    General disorders
    Asthenia 66/636 (10.4%) 90 79/615 (12.8%) 108
    Chest pain 52/636 (8.2%) 57 44/615 (7.2%) 53
    Fatigue 100/636 (15.7%) 125 125/615 (20.3%) 186
    Malaise 16/636 (2.5%) 16 33/615 (5.4%) 50
    Oedema peripheral 31/636 (4.9%) 32 34/615 (5.5%) 44
    Pyrexia 63/636 (9.9%) 81 47/615 (7.6%) 58
    Infections and infestations
    Pneumonia 33/636 (5.2%) 34 24/615 (3.9%) 27
    Upper respiratory tract infection 40/636 (6.3%) 50 31/615 (5%) 38
    Investigations
    Alanine aminotransferase increased 62/636 (9.7%) 82 73/615 (11.9%) 96
    Aspartate aminotransferase increased 60/636 (9.4%) 79 58/615 (9.4%) 85
    Blood alkaline phosphatase increased 39/636 (6.1%) 48 30/615 (4.9%) 35
    Neutrophil count decreased 7/636 (1.1%) 7 87/615 (14.1%) 212
    Platelet count decreased 5/636 (0.8%) 5 63/615 (10.2%) 133
    Weight decreased 64/636 (10.1%) 68 45/615 (7.3%) 46
    White blood cell count decreased 6/636 (0.9%) 8 72/615 (11.7%) 213
    Metabolism and nutrition disorders
    Decreased appetite 108/636 (17%) 126 131/615 (21.3%) 205
    Musculoskeletal and connective tissue disorders
    Arthralgia 55/636 (8.6%) 62 74/615 (12%) 144
    Back pain 61/636 (9.6%) 68 43/615 (7%) 51
    Musculoskeletal pain 41/636 (6.4%) 50 27/615 (4.4%) 33
    Myalgia 32/636 (5%) 36 70/615 (11.4%) 135
    Pain in extremity 30/636 (4.7%) 34 33/615 (5.4%) 39
    Nervous system disorders
    Dizziness 23/636 (3.6%) 25 37/615 (6%) 44
    Headache 44/636 (6.9%) 55 51/615 (8.3%) 61
    Neuropathy peripheral 5/636 (0.8%) 6 52/615 (8.5%) 61
    Peripheral sensory neuropathy 4/636 (0.6%) 5 43/615 (7%) 55
    Psychiatric disorders
    Insomnia 33/636 (5.2%) 37 44/615 (7.2%) 50
    Respiratory, thoracic and mediastinal disorders
    Cough 99/636 (15.6%) 114 65/615 (10.6%) 71
    Dyspnoea 99/636 (15.6%) 114 68/615 (11.1%) 77
    Haemoptysis 42/636 (6.6%) 57 21/615 (3.4%) 23
    Skin and subcutaneous tissue disorders
    Alopecia 3/636 (0.5%) 4 138/615 (22.4%) 139
    Pruritus 62/636 (9.7%) 77 18/615 (2.9%) 19
    Rash 68/636 (10.7%) 77 42/615 (6.8%) 50
    Vascular disorders
    Hypertension 37/636 (5.8%) 43 13/615 (2.1%) 16

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    The Sponsor must have the opportunity to review all proposed abstracts, manuscripts or presentations regarding this trial 45 days prior to submission for publication/presentation. Any information identified by the Sponsor as confidential must be deleted prior to submission; this confidentiality does not include efficacy and safety results. Sponsor review can be expedited to meet publication timelines.

    Results Point of Contact

    Name/Title Senior Vice President, Global Clinical Development
    Organization Merck Sharp & Dohme LLC
    Phone 1-800-672-6372
    Email ClinicalTrialsDisclosure@merck.com
    Responsible Party:
    Merck Sharp & Dohme LLC
    ClinicalTrials.gov Identifier:
    NCT02220894
    Other Study ID Numbers:
    • 3475-042
    • 152877
    • MK-3475-042
    • KEYNOTE-042
    • 2014-001473-14
    First Posted:
    Aug 20, 2014
    Last Update Posted:
    Aug 19, 2022
    Last Verified:
    Aug 1, 2022