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Coformulation of Pembrolizumab/Vibostolimab (MK-7684A) Versus Pembrolizumab (MK-3475) Monotherapy for Programmed Cell Death 1 Ligand 1 (PD-L1) Positive Metastatic Non-Small Cell Lung Cancer (MK-7684A-003, KEYVIBE-003)

A Phase 3, Multicenter, Randomized, Double-Blind Study of MK-7684 With Pembrolizumab as a Coformulation (MK-7684A) Versus Pembrolizumab Monotherapy as First Line Treatment for Participants With PD-L1 Positive Metastatic Non-Small Cell Lung Cancer

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04738487
Enrollment
1264
Registered
2021-02-04
Start date
2021-04-07
Completion date
2026-01-27
Last updated
2026-02-20

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

Conditions

Lung Neoplasms, Non-Small-Cell Lung Carcinoma

Keywords

Programmed Cell Death-1 (PD1, PD-1), Programmed Cell Death 1 Ligand 1 (PDL1, PD-L1), Programmed Cell Death 1 Ligand 2 (PDL2, PD-L2)

Brief summary

Researchers are looking for new ways to treat people with metastatic non-small cell lung cancer (NSCLC) that is PD-L1 positive. * Metastatic means cancer that has spread to other parts of the body. * PD-L1 positive means that PD-L1 is found on the cancer cells. PD-L1 is a protein that can help the cancer hide from the body's immune system. The goal of this study is to learn if people who receive vibostolimab and pembrolizumab live longer overall and without the cancer getting worse than people who receive pembrolizumab alone.

Detailed description

The protocol-specified futility analysis of the primary outcome measure was completed with a data cut-off of 05-Sep-2024 (Primary Completion Date) and served as the final analysis of the primary outcome measure. Per protocol, 58 participants enrolled after the primary completion date and will be analyzed in the End of Trial analysis.

Interventions

Coformulation of pembrolizumab (MK-3475) 200mg and vibostolimab (MK-7684) 200mg. Participants receive the coformulation by intravenous (IV) infusion every 3 weeks (Q3W) for up to 35 administrations (up to \~2 years).

BIOLOGICALPembrolizumab

Participants receive 200 mg of pembrolizumab by intravenous (IV) infusion every 3 weeks (Q3W) for up to 35 administrations (up to \~2 years).

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Has a histologically or cytologically confirmed diagnosis of Stage IV: M1a, M1b, or M1c non-small cell lung cancer (NSCLC) per the American Joint Committee on Cancer (AJCC) Staging Manual, version 8 * Has measurable disease based on Response Evaluation Criteria in Solid Tumors (RECIST) 1.1, as determined by the local site assessment * Has confirmation that epidermal growth factor receptor (EGFR)-, anaplastic lymphoma kinase (ALK)-, or reactive oxygen species proto-oncogene 1 (ROS1)-directed therapy is not indicated as primary therapy and absence of ALK and ROS1 gene rearrangements * Has provided tumor tissue that demonstrates Programmed Cell Death 1 Ligand 1 (PD-L1) expression in ≥1% of tumor cells as assessed by immunohistochemistry (IHC) at a central laboratory * Has an Eastern Cooperative Oncology Group (ECOG) performance score of 0 or 1 assessed within 7 days prior to randomization * Has a life expectancy of at least 3 months * A female participant is eligible to participate if she is not pregnant or breastfeeding, and at least one of the following conditions applies: * Is not a woman of childbearing potential (WOCBP) * Is a WOCBP and using a contraceptive method that is highly effective (with a failure rate of \<1% per year), with low user dependency or be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis), during the intervention period and for at least 120 days after the last dose of study intervention * Has adequate organ function

Exclusion criteria

* Has a known history of an additional malignancy, except if the participant has undergone potentially curative therapy with no evidence of that disease recurrence for at least 3 years since initiation of that therapy * Has received prior systemic chemotherapy or other targeted or biological antineoplastic therapy for their metastatic NSCLC. * Prior treatment with chemotherapy and/or radiation as part of neoadjuvant/adjuvant or chemoradiation therapy for nonmetastatic NSCLC is allowed as long as therapy was completed at least 6 months before the diagnosis of metastatic NSCLC. * Participants must have recovered from all AEs due to previous therapies to Grade ≤1 or baseline. Participants with Grade ≤2 neuropathy may be eligible. Participants with endocrine-related AEs Grade ≤2 requiring treatment or hormone replacement may be eligible. * Has received prior therapy with an anti-programmed cell death receptor 1 (PD-1), anti-programmed cell death receptor ligand 1 (PD-L1), or anti-programmed cell death receptor ligand 2 (PD-L2) agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (eg, cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), OX-40, CD137) * Has received previous treatment with another agent targeting the T cell immunoreceptor with immunoglobulin (Ig) and immunoreceptor tyrosine-based inhibition motif (ITIM) domains (TIGIT) receptor pathway * Has received radiotherapy within 2 weeks of start of study intervention. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. A 1-week washout is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-central nervous system (CNS) disease * Has received a live or live-attenuated vaccine within 30 days prior to the first dose of study intervention. Administration of killed vaccines is allowed. * Any licensed COVID-19 vaccine (including for Emergency Use) in a particular country is allowed in the study as long as they are mRNA vaccines, adenoviral vaccines, or inactivated vaccines. These vaccines will be treated just as any other concomitant therapy. * Investigational vaccines (i.e., those not licensed or approved for Emergency Use) are not allowed. * Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study intervention * Has known active or untreated CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable for at least 4 weeks by repeat imaging, clinically stable, and without requirement of steroid treatment for at least 14 days prior to first dose of study intervention * Has severe hypersensitivity (≥Grade 3) to pembrolizumab/vibostolimab or pembrolizumab and/or any of its excipients * Has an active autoimmune disease that has required systemic treatment in past 2 years (ie, with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment and is allowed. * Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study intervention * Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis * Has a known history of interstitial lung disease. Lymphangitic spread of the NSCLC is not exclusionary. * Has an active infection requiring systemic therapy * Has a known history of human immunodeficiency virus (HIV) infection. No HIV testing is required unless mandated by local health authority * Has a known history of Hepatitis B or known active Hepatitis C virus infection * Has a history or current evidence of any condition, therapy, or laboratory abnormality that prevents the participant from receiving platinum-doublet chemotherapy for first line NSCLC, or that might confound the results of the study, interfere with the participant's participation for the full duration of the study, or is not in the best interest of the participant to participate, in the opinion of the treating investigator. * Has a known psychiatric or substance abuse disorder that would interfere with the participant's ability to cooperate with the requirements of the study

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS) in Participants With PD-L1 TPS ≥50%Up to ~39 monthsOS was defined as the time from randomization to death due to any cause.

Secondary

MeasureTime frameDescription
OS in Participants With PD-L1 TPS ≥1%Up to ~39 monthsOS was defined as the time from randomization to death due to any cause.
OS in Participants With PD-L1 TPS 1% to 49%Up to ~39 monthsOS was defined as the time from randomization to death due to any cause.
Progression-Free Survival (PFS) in Participants With PD-L1 TPS ≥1%Up to ~56 monthsPFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per Response Evaluation Criteria in Solid Tumors (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 will be presented.
PFS in Participants With PD-L1 TPS ≥50%Up to ~56 monthsPFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per Response Evaluation Criteria in Solid Tumors (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 will be presented.
PFS in Participants With PD-L1 TPS 1% to 49%Up to ~56 monthsPFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per Response Evaluation Criteria in Solid Tumors (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 will be presented.
Objective Response Rate (ORR) in Participants With PD-L1 TPS ≥1%Up to ~56 monthsORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a 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. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.
ORR in Participants With PD-L1 TPS ≥50%Up to ~56 monthsORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a 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. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.
ORR in Participants With PD-L1 TPS 1% to 49%Up to ~56 monthsORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a 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. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.
Duration of Response (DOR) in Participants With PD-L1 TPS ≥50%Up to ~56 monthsFor 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 blinded independent central review will be presented.
DOR in Participants With PD-L1 TPS 1% to 49%Up to ~56 monthsFor 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 blinded independent central review will be presented.
DOR in Participants With PD-L1 TPS ≥1%Up to ~56 monthsFor 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 blinded independent central review will be presented.
Change From Baseline in Global Health Status/Quality of Life (QoL) (Items 29, 30) Combined Score on the European Organization for Research and Treatment of Cancer QoL Questionnaire-Core 30 (EORTC QLQ-C30) in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 29 and 30 will 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.
Change From Baseline in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 29 and 30 will 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.
Change From Baseline in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 29 and 30 will 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.
Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 1-5 will 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.
Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 1-5 will 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.
Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 1-5 will 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.
Change From Baseline in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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.
Change From Baseline in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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.
Change From Baseline in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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.
Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Item 8 will 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.
Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Item 8 will 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.
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) in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-LC13 Item 31 will 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
Change From Baseline in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-LC13 Item 31 will 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.
Change From Baseline in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-LC13 Item 31 will 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.
Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-LC13 Item 40 will 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.
Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-LC13 Item 40 will 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.
Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-LC13 Item 40 will 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 to Deterioration (TTD) in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 29 and 30 will 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.
TTD in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 29 and 30 will 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.
TTD in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 29 and 30 will 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.
TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 1-5 will 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.
TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1% to 49%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 1-5 will 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.
TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 1-5 will 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.
TTD in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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.
TTD in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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.
TTD in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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.
TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Item 8 will 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.
TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Item 8 will 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.
TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-C30 Item 8 will 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.
TTD in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-LC13 Item 31 will 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.
TTD in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-LC13 Item 31 will 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.
TTD in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-LC13 Item 31 will 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.
TTD in in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥50%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-LC13 Item 40 will 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.
TTD in in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-LC13 Item 40 will 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.
TTD in in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%Baseline and up to ~56 monthsTTD in the score of EORTC QLQ-LC13 Item 40 will 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.
Number of Participants Who Experienced One or More Adverse Events (AEs)Up to ~56 monthsThe 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.
Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%Baseline and up to ~56 monthsChange from baseline in the score of EORTC QLQ-C30 Item 8 will 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.
Number of Participants Who Discontinued Study Intervention Due to an Adverse Event (AE)Up to ~56 monthsThe 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.

Countries

Brazil, Canada, Chile, China, Dominican Republic, Guatemala, Hong Kong, Hungary, India, Japan, Malaysia, Mexico, Peru, Philippines, Romania, Russia, South Africa, South Korea, Thailand, Turkey (Türkiye), Ukraine, United States, Vietnam

Contacts

STUDY_DIRECTORMedical Director

Merck Sharp & Dohme LLC

Participant flow

Pre-assignment details

Final analysis for the reported results, including participant flow, was performed on 1206 participants enrolled within the primary completion data cutoff. Analysis of the remaining 58 participants will be included in the End of Trial analysis. Per protocol, response/progression or adverse events that occurred during second course were not included in efficacy or safety outcome measures.

Participants by arm

ArmCount
Pembrolizumab/Vibostolimab
Participants received 200 mg pembrolizumab / 200 mg vibostolimab as a coformulation (MK-7684A) by intravenous (IV) infusion every 3 weeks (Q3W) for up to 35 administrations, until centrally verified disease progression, or until a protocol-specified discontinuation criterion was met. Per investigator's discretion, eligible participants with stable disease, or partial/complete response who received a first course treatment may have received a second course of treatment based on original randomization assignment for up to 17 cycles (up to \ 1 year).
594
Pembrolizumab
Participants received 200 mg pembrolizumab by IV infusion Q3W for up to 35 administrations, until centrally verified disease progression, or until a protocol-specified discontinuation criterion was met. Per investigator's discretion, eligible participants with stable disease, or partial/complete response who received a first course treatment may have received a second course of treatment based on original randomization assignment for up to 17 cycles (up to \ 1 year).
612
Total1,206

Baseline characteristics

CharacteristicPembrolizumab/VibostolimabPembrolizumabTotal
Age, Continuous66.5 Years
STANDARD_DEVIATION 9.8
66.3 Years
STANDARD_DEVIATION 10.2
66.4 Years
STANDARD_DEVIATION 10
Eastern Cooperative Oncology Group (ECOG) Performance Status
ECOG = 0
165 Participants163 Participants328 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
ECOG = 1
429 Participants448 Participants877 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
ECOG = 2
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
152 Participants132 Participants284 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
434 Participants471 Participants905 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
8 Participants9 Participants17 Participants
Geographic Region
East Asia
239 Participants260 Participants499 Participants
Geographic Region
Non-East Asia
355 Participants352 Participants707 Participants
Programmed Cell Death Ligand 1 (PD-L1) Status at Baseline
TPS 1-49%
322 Participants305 Participants627 Participants
Programmed Cell Death Ligand 1 (PD-L1) Status at Baseline
TPS ≥ 50%
272 Participants307 Participants579 Participants
Race (NIH/OMB)
American Indian or Alaska Native
24 Participants28 Participants52 Participants
Race (NIH/OMB)
Asian
247 Participants271 Participants518 Participants
Race (NIH/OMB)
Black or African American
5 Participants3 Participants8 Participants
Race (NIH/OMB)
More than one race
25 Participants22 Participants47 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants0 Participants2 Participants
Race (NIH/OMB)
White
291 Participants288 Participants579 Participants
Sex: Female, Male
Female
177 Participants172 Participants349 Participants
Sex: Female, Male
Male
417 Participants440 Participants857 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
291 / 594310 / 6120 / 10 / 3
other
Total, other adverse events
478 / 593472 / 6101 / 12 / 3
serious
Total, serious adverse events
249 / 593220 / 6100 / 10 / 3

Outcome results

Primary

Overall Survival (OS) in Participants With PD-L1 TPS ≥50%

OS was defined as the time from randomization to death due to any cause.

Time frame: Up to ~39 months

Population: The analysis population consisted of all participants with PD-L1 TPS ≥ 50% who were randomized prior to the primary completion data cut-off.

ArmMeasureValue (MEDIAN)
Pembrolizumab/VibostolimabOverall Survival (OS) in Participants With PD-L1 TPS ≥50%15.7 Months
PembrolizumabOverall Survival (OS) in Participants With PD-L1 TPS ≥50%20.3 Months
p-value: 0.671295% CI: [0.83, 1.35]Log Rank
Secondary

Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%

Change from baseline in the score of EORTC QLQ-LC13 Item 40 will 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 ~56 months

Secondary

Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%

Change from baseline in the score of EORTC QLQ-LC13 Item 40 will 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 ~56 months

Secondary

Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥50%

Change from baseline in the score of EORTC QLQ-LC13 Item 40 will 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 ~56 months

Secondary

Change From Baseline in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%

Change from baseline in the score of EORTC QLQ-LC13 Item 31 will 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 ~56 months

Secondary

Change From Baseline in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%

Change from baseline in the score of EORTC QLQ-LC13 Item 31 will 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 ~56 months

Secondary

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) in Participants With PD-L1 TPS ≥50%

Change from baseline in the score of EORTC QLQ-LC13 Item 31 will 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 ~56 months

Secondary

Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

Change from baseline in the score of EORTC QLQ-C30 Item 8 will 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 ~56 months

Secondary

Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

Change from baseline in the score of EORTC QLQ-C30 Item 8 will 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 ~56 months

Secondary

Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

Change from baseline in the score of EORTC QLQ-C30 Item 8 will 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 ~56 months

Secondary

Change From Baseline in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

Change from baseline in the score of EORTC QLQ-C30 Items 29 and 30 will 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 ~56 months

Secondary

Change From Baseline in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

Change from baseline in the score of EORTC QLQ-C30 Items 29 and 30 will 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 ~56 months

Secondary

Change From Baseline in Global Health Status/Quality of Life (QoL) (Items 29, 30) Combined Score on the European Organization for Research and Treatment of Cancer QoL Questionnaire-Core 30 (EORTC QLQ-C30) in Participants With PD-L1 TPS ≥50%

Change from baseline in the score of EORTC QLQ-C30 Items 29 and 30 will 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 ~56 months

Secondary

Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

Change from baseline in the score of EORTC QLQ-C30 Items 1-5 will 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 ~56 months

Secondary

Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

Change from baseline in the score of EORTC QLQ-C30 Items 1-5 will 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 ~56 months

Secondary

Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

Change from baseline in the score of EORTC QLQ-C30 Items 1-5 will 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 ~56 months

Secondary

Change From Baseline in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

Change from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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 ~56 months

Secondary

Change From Baseline in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

Change from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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 ~56 months

Secondary

Change From Baseline in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

Change from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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 ~56 months

Secondary

DOR in Participants With PD-L1 TPS ≥1%

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 blinded independent central review will be presented.

Time frame: Up to ~56 months

Secondary

DOR in Participants With PD-L1 TPS 1% to 49%

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 blinded independent central review will be presented.

Time frame: Up to ~56 months

Secondary

Duration of Response (DOR) in Participants With PD-L1 TPS ≥50%

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 blinded independent central review will be presented.

Time frame: Up to ~56 months

Secondary

Number of Participants Who Discontinued Study Intervention Due to an Adverse Event (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 ~56 months

Secondary

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 ~56 months

Secondary

Objective Response Rate (ORR) in Participants With PD-L1 TPS ≥1%

ORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a 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. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.

Time frame: Up to ~56 months

Secondary

ORR in Participants With PD-L1 TPS 1% to 49%

ORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a 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. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.

Time frame: Up to ~56 months

Secondary

ORR in Participants With PD-L1 TPS ≥50%

ORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a 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. The percentage of participants who experience a CR or PR as assessed by blinded independent central review based on RECIST 1.1 will be presented.

Time frame: Up to ~56 months

Secondary

OS in Participants With PD-L1 TPS ≥1%

OS was defined as the time from randomization to death due to any cause.

Time frame: Up to ~39 months

Population: The analysis population consisted of all participants with PD-L1 TPS ≥ 1% who were randomized prior to the primary completion data cut-off.

ArmMeasureValue (MEDIAN)
Pembrolizumab/VibostolimabOS in Participants With PD-L1 TPS ≥1%15.0 Months
PembrolizumabOS in Participants With PD-L1 TPS ≥1%16.4 Months
p-value: 0.33295% CI: [0.82, 1.13]Log Rank
Secondary

OS in Participants With PD-L1 TPS 1% to 49%

OS was defined as the time from randomization to death due to any cause.

Time frame: Up to ~39 months

Population: The analysis population consisted of all participants with PD-L1 TPS 1% to 49% who were randomized prior to the primary completion data cut-off.

ArmMeasureValue (MEDIAN)
Pembrolizumab/VibostolimabOS in Participants With PD-L1 TPS 1% to 49%14.3 Months
PembrolizumabOS in Participants With PD-L1 TPS 1% to 49%14.3 Months
p-value: 0.164695% CI: [0.72, 1.11]Log Rank
Secondary

PFS in Participants With PD-L1 TPS 1% to 49%

PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per Response Evaluation Criteria in Solid Tumors (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 will be presented.

Time frame: Up to ~56 months

Secondary

PFS in Participants With PD-L1 TPS ≥50%

PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per Response Evaluation Criteria in Solid Tumors (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 will be presented.

Time frame: Up to ~56 months

Secondary

Progression-Free Survival (PFS) in Participants With PD-L1 TPS ≥1%

PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. Per Response Evaluation Criteria in Solid Tumors (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 will be presented.

Time frame: Up to ~56 months

Secondary

Time to Deterioration (TTD) in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

TTD in the score of EORTC QLQ-C30 Items 29 and 30 will 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: Baseline and up to ~56 months

Secondary

TTD in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%

TTD in the score of EORTC QLQ-LC13 Item 31 will 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: Baseline and up to ~56 months

Secondary

TTD in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%

TTD in the score of EORTC QLQ-LC13 Item 31 will 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: Baseline and up to ~56 months

Secondary

TTD in Cough Score (Item 31) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥50%

TTD in the score of EORTC QLQ-LC13 Item 31 will 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: Baseline and up to ~56 months

Secondary

TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

TTD in the score of EORTC QLQ-C30 Item 8 will 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: Baseline and up to ~56 months

Secondary

TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

TTD in the score of EORTC QLQ-C30 Item 8 will 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: Baseline and up to ~56 months

Secondary

TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

TTD in the score of EORTC QLQ-C30 Item 8 will 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: Baseline and up to ~56 months

Secondary

TTD in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

TTD in the score of EORTC QLQ-C30 Items 29 and 30 will 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: Baseline and up to ~56 months

Secondary

TTD in Global Health Status/QoL (Items 29, 30) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

TTD in the score of EORTC QLQ-C30 Items 29 and 30 will 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: Baseline and up to ~56 months

Secondary

TTD in in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥1%

TTD in the score of EORTC QLQ-LC13 Item 40 will 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: Baseline and up to ~56 months

Secondary

TTD in in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS 1% to 49%

TTD in the score of EORTC QLQ-LC13 Item 40 will 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: Baseline and up to ~56 months

Secondary

TTD in in Chest Pain Score (Item 40) on the EORTC QLQ-LC13 in Participants With PD-L1 TPS ≥50%

TTD in the score of EORTC QLQ-LC13 Item 40 will 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: Baseline and up to ~56 months

Secondary

TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

TTD in the score of EORTC QLQ-C30 Items 1-5 will 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: Baseline and up to ~56 months

Secondary

TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1% to 49%

TTD in the score of EORTC QLQ-C30 Items 1-5 will 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: Baseline and up to ~56 months

Secondary

TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

TTD in the score of EORTC QLQ-C30 Items 1-5 will 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: Baseline and up to ~56 months

Secondary

TTD in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥1%

TTD in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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: Baseline and up to ~56 months

Secondary

TTD in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS 1% to 49%

TTD in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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: Baseline and up to ~56 months

Secondary

TTD in Role Functioning (Items 6, 7) Combined Score on the EORTC QLQ-C30 in Participants With PD-L1 TPS ≥50%

TTD in the score of EORTC QLQ-C30 Items 6-7 will be presented. The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 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: Baseline and up to ~56 months

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026