The primary hypothesis is that pembrolizumab/vibostolimab (MK-7684A) in combination with chemotherapy is superior to pembrolizumab in combination with chemotherapy with respect to overall survival (OS) in participants with programmed cell death-ligand 1 (PD-L1) tumor proportion score (TPS) ≥1%.
Effective as of Amendment 5, Participants receiving coformulation of pembrolizumab/vibostolimab plus chemotherapy will be transitioned to standard of care (SOC, pembrolizumab plus chemotherapy). Participants with access to approved standard of care (SOC) should be considered for discontinuation from the study. Those benefiting from pembrolizumab plus chemotherapy, but unable to access it as SOC outside the study, may continue on study and receive treatment with pembrolizumab plus chemotherapy until discontinuation criteria are met.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
739
Co-formulation of pembrolizumab 200 mg/20 mL vial and vibostolimab 200 mg administered as IV infusion for up to 35 administrations
Carboplatin 10 mg/ml administered as IV infusion Q3W for 4 administrations
Cisplatin 1 mg/ml administered as IV infusion Q3W for 4 administrations
Overall Survival (OS) in Participants With Programmed Cell Death-Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥1%
OS is defined as the time from the date of randomization to death due to any cause. The OS is reported for all participants with PD-L1 positive tumors (PD-L1 TPS≥1%). The OS was calculated using the product-limit (Kaplan-Meier) method for censored data.
Time frame: Up to approximately 29 months
Overall Survival (OS) in All Participants
OS is defined as the time from the date of randomization to death due to any cause. The OS is reported for all randomized participants. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data.
Time frame: Up to approximately 29 months
Progression-Free Survival (PFS)
PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first as assessed by Response Criteria in Solid Tumors Version 1.1 (RECIST 1.1). PD is defined as ≥20% increase in the sum of diameters of target lesions. 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 is also considered PD. PFS as assessed by blinded independent central review (BICR) was planned to be presented.
Time frame: Up to approximately 29 months
Objective Response Rate (ORR)
ORR is defined as the percentage of participants with Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience CR or PR as assessed by blinded independent central review (BICR) was planned to be presented.
Time frame: Up to approximately 29 months
Duration of Response (DOR)
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Paclitaxel 6mg/ml administered as IV infusion Q3W for 4 administrations
Nab-paclitaxel 100 mg/vial administered as IV infusion Days 1, 8, and 15 of each 21-day cycle for 4 administrations
Pemetrexed 500 mg/vial administered as IV infusion Q3W until progression, intolerable adverse event (AE), or participant or physician decision
Pembrolizumab 25 mg/mL administered as IV infusion Q3W for up to 35 administrations
UCHealth Memorial Hospital-Heme Onc ( Site 0003)
Colorado Springs, Colorado, United States
University of Colorado Health - Harmony-Cancer Care and Hematology - Ft. Collins ( Site 0031)
Fort Collins, Colorado, United States
Mayo Clinic in Florida ( Site 0022)
Jacksonville, Florida, United States
Mount Sinai Hospital ( Site 0011)
Chicago, Illinois, United States
University of Chicago Medical Center ( Site 0015)
Chicago, Illinois, United States
New England Cancer Specialists ( Site 0008)
Scarborough, Maine, United States
Cancer and Hematology Centers of Western Michigan ( Site 0002)
Grand Rapids, Michigan, United States
Mayo Clinic in Rochester, Minnesota ( Site 0030)
Rochester, Minnesota, United States
Stony Brook University-Cancer Center ( Site 0013)
Stony Brook, New York, United States
Lancaster General Hospital - Ann B Barshinger Cancer Institute ( Site 0012)
Lancaster, Pennsylvania, United States
...and 139 more locations
For participants who demonstrate a Complete Response (CR: Disappearance of all target lesions) or Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1, DOR is defined as the time from first documented evidence of CR or PR until progressive disease (PD) or death. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. The DOR as assessed by BICR was planned to be presented.
Time frame: Up to approximately 29 months
Change From Baseline in the Global Health Status/Quality of Life (Items 29 and 30) Combined Score on the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30)
Change from baseline in the score of EORTC QLQ-C30 Items 29 and 30 was planned to be presented. The EORTC-QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Participant responses to Items 29 and 30 ("How would you rate your overall health during the past week?" and "How would you rate your overall quality of life during the past week?") are scored on a 7-point scale (1=Very Poor to 7=Excellent). A higher score indicates a better overall outcome.
Time frame: Baseline and Up to approximately 29 months
Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30
Change from baseline in the score of EORTC QLQ-C30 Items 1-5 was planned to be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Higher scores indicate a worse level of function.
Time frame: Baseline and Up to approximately 29 months
Change From Baseline for Role Functioning (Items 6 and 7) Combined Score on the EORTC QLQ-C30
Change from baseline in the score of EORTC QLQ-C30 Items 6-7 was planned to be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 2 questions about their role functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Higher scores indicate a worse level of function.
Time frame: Baseline and up to approximately 29 months
Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30
Change from baseline in the score of EORTC QLQ-C30 Item 8 was planned to be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant response to the question "Were you short of breath?" is scored on a 4-point scale (1=Not at All to 4=Very Much). A higher score indicates a worse level of dyspnea.
Time frame: Baseline and Up to approximately 29 months
Change From Baseline in Cough Score (Item 31) on the European Organization for Research and Treatment of Cancer Quality of Life Lung Cancer-Specific Questionnaire Module (EORTC QLQ-LC13)
Change from baseline in the score of EORTC QLQ-LC13 Item 31 was planned to be presented. The EORTC QLQ-LC13 is a lung cancer specific health-related quality-of life (QoL) questionnaire. Participant response to the question "Have you coughed?" is scored on a 4-point scale (1=Not at All to 4=Very Much). A higher score indicates more frequent coughing.
Time frame: Baseline and Up to approximately 29 months
Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ- LC13
Change from baseline in the score of EORTC QLQ-LC13 Item 40 was planned to be presented. The EORTC QLQ-LC13 is a lung cancer specific health-related quality-of life (QoL) questionnaire. Participant response to the question "Have you had pain in your chest?" is scored on a 4-point scale (1=Not at All to 4=Very Much). A higher score indicates a worse level of chest pain.
Time frame: Baseline and Up to approximately 29 months
Time to Deterioration (TTD) in the Global Health Status/Quality of Life (Items 29 and 30) Combined Score on the EORTC QLQ-C30
TTD in the score of EORTC QLQ-C30 Items 29 and 30 was planned to be presented. The EORTC-QLQ-C30 is a 30-item questionnaire developed to assess the quality of life of cancer patients. Participant responses to Items 29 and 30 ("How would you rate your overall health during the past week?" and "How would you rate your overall quality of life during the past week?") are scored on a 7-point scale (1=Very Poor to 7=Excellent). A higher score indicates a better overall outcome. TTD is defined as the time to first onset of 10 or more (out of 100) deterioration from baseline and confirmed by a second adjacent 10 or more deterioration from baseline.
Time frame: Up to approximately 29 months
TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ- C30
TTD in the score of EORTC QLQ-C30 Items 1-5 was planned to be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Higher scores indicate a worse level of function. TTD is defined as the time to first onset of 10 or more (out of 100) deterioration from baseline and confirmed by a second adjacent 10 or more deterioration from baseline.
Time frame: Up to approximately 29 months
TTD in Role Functioning (Items 6 and 7) Combined Score on the EORTC QLQ-C30
TTD in the score of EORTC QLQ-C30 Items 6-7 was planned to be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 2 questions about their role functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Higher scores indicate a worse level of function. TTD is defined as the time to first onset of 10 or more (out of 100) deterioration from baseline and confirmed by a second adjacent 10 or more deterioration from baseline.
Time frame: Up to approximately 29 months
TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30
TTD in the score of EORTC QLQ-C30 Item 8 was planned to be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant response to the question "Were you short of breath?" is scored on a 4-point scale (1=Not at All to 4=Very Much). A higher score indicates a worse level of dyspnea. TTD is defined as the time to first onset of 10 or more (out of 100) deterioration from baseline and confirmed by a second adjacent 10 or more deterioration from baseline.
Time frame: Up to approximately 29 months
TTD in Cough Score (Item 31) on the EORTC QLQ-LC13
TTD in the score of EORTC QLQ-LC13 Item 31 was planned to be presented. The EORTC QLQ-LC13 is a lung cancer specific health-related quality-of life (QoL) questionnaire. Participant response to the question "Have you coughed?" is scored on a 4-point scale (1=Not at All to 4=Very Much). A higher score indicates more frequent coughing. TTD is defined as the time to first onset of 10 or more (out of 100) deterioration from baseline and confirmed by a second adjacent 10 or more deterioration from baseline.
Time frame: Up to approximately 29 months
TTD in Chest Pain Score (Item 40) on the EORTC QLQ-LC13
TTD in the score of EORTC QLQ-LC13 Item 40 was planned to be presented. The EORTC QLQ-LC13 is a lung cancer specific health-related quality-of life (QoL) questionnaire. Participant response to the question "Have you had pain in your chest?" is scored on a 4-point scale (1=Not at All to 4=Very Much). A higher score indicates a worse level of chest pain. TTD is defined as the time to first onset of 10 or more (out of 100) deterioration from baseline and confirmed by a second adjacent 10 or more deterioration from baseline.
Time frame: Up to approximately 29 months
Number of Participants Who Experienced One or More Adverse Events (AEs)
The number of participants who experienced an adverse event (AE) will be presented. An AE is defined as any untoward medical occurrence in a participant administered study treatment and which did not necessarily have to have a causal relationship with this treatment.
Time frame: Up to approximately 46 months
Number of Participants Who Discontinued Study Intervention Due to an AE
The number of participants who discontinue study intervention due to an adverse event (AE) will be presented. An AE is defined as any untoward medical occurrence in a participant administered study treatment and which did not necessarily have to have a causal relationship with this treatment.
Time frame: Up to approximately 46 months