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Study of Pembrolizumab/Vibostolimab Coformulation (MK-7684A) in Combination With Chemotherapy Versus Pembrolizumab Plus Chemotherapy in Participants With Metastatic Non-Small Cell Lung Cancer (MK-7684A-007/KEYVIBE-007)

A Randomized, Double-Blind, Phase 3 Study of Pembrolizumab/Vibostolimab Coformulation (MK-7684A) in Combination With Chemotherapy Versus Pembrolizumab Plus Chemotherapy as First Line Treatment for Participants With Metastatic Non-Small Cell Lung Cancer (MK-7684A-007/KEYVIBE-007)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05226598
Enrollment
739
Registered
2022-02-07
Start date
2022-03-24
Completion date
2026-01-09
Last updated
2026-02-05

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

Conditions

Metastatic Non-Small Cell Lung Cancer

Brief summary

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%.

Detailed description

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.

Interventions

Co-formulation of pembrolizumab 200 mg/20 mL vial and vibostolimab 200 mg administered as IV infusion for up to 35 administrations

DRUGCarboplatin

Carboplatin 10 mg/ml administered as IV infusion Q3W for 4 administrations

DRUGCisplatin

Cisplatin 1 mg/ml administered as IV infusion Q3W for 4 administrations

DRUGPaclitaxel

Paclitaxel 6mg/ml administered as IV infusion Q3W for 4 administrations

DRUGNab-paclitaxel

Nab-paclitaxel 100 mg/vial administered as IV infusion Days 1, 8, and 15 of each 21-day cycle for 4 administrations

DRUGPemetrexed

Pemetrexed 500 mg/vial administered as IV infusion Q3W until progression, intolerable adverse event (AE), or participant or physician decision

BIOLOGICALPembrolizumab

Pembrolizumab 25 mg/mL administered as IV infusion Q3W for up to 35 administrations

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

The main inclusion and

Exclusion criteria

include but are not limited to the following: Inclusion Criteria: * A histologically or cytologically confirmed diagnosis of Stage IV squamous or non-squamous NSCLC * Has not received prior systemic treatment for metastatic NSCLC * Has measurable disease based on RECIST 1.1, as determined by the local site assessment * Has a life expectancy of at least 3 months * Males: Use contraception unless confirmed to be azoospermic; Females: Women of childbearing potential use highly effective contraceptive method

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS) in Participants With Programmed Cell Death-Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥1%Up to approximately 29 monthsOS 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.

Secondary

MeasureTime frameDescription
Overall Survival (OS) in All ParticipantsUp to approximately 29 monthsOS 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.
Progression-Free Survival (PFS)Up to approximately 29 monthsPFS 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.
Objective Response Rate (ORR)Up to approximately 29 monthsORR 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.
Duration of Response (DOR)Up to approximately 29 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 BICR was planned to be presented.
Number of Participants Who Experienced One or More Adverse Events (AEs)Up to approximately 46 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 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)Baseline and Up to approximately 29 monthsChange 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.
Change From Baseline in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ-C30Baseline and Up to approximately 29 monthsChange 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.
Change From Baseline for Role Functioning (Items 6 and 7) Combined Score on the EORTC QLQ-C30Baseline and up to approximately 29 monthsChange 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.
Change From Baseline in Dyspnea Score (Item 8) on the EORTC QLQ-C30Baseline and Up to approximately 29 monthsChange 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.
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)Baseline and Up to approximately 29 monthsChange 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.
Change From Baseline in Chest Pain Score (Item 40) on the EORTC QLQ- LC13Baseline and Up to approximately 29 monthsChange 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 to Deterioration (TTD) in the Global Health Status/Quality of Life (Items 29 and 30) Combined Score on the EORTC QLQ-C30Up to approximately 29 monthsTTD 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.
TTD in Physical Functioning (Items 1-5) Combined Score on the EORTC QLQ- C30Up to approximately 29 monthsTTD 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.
TTD in Role Functioning (Items 6 and 7) Combined Score on the EORTC QLQ-C30Up to approximately 29 monthsTTD 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.
TTD in Dyspnea Score (Item 8) on the EORTC QLQ-C30Up to approximately 29 monthsTTD 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.
TTD in Cough Score (Item 31) on the EORTC QLQ-LC13Up to approximately 29 monthsTTD 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.
TTD in Chest Pain Score (Item 40) on the EORTC QLQ-LC13Up to approximately 29 monthsTTD 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.
Number of Participants Who Discontinued Study Intervention Due to an AEUp to approximately 46 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

Argentina, Austria, Brazil, Chile, China, Colombia, France, Germany, Israel, Japan, Mexico, Poland, South Korea, Spain, Taiwan, Thailand, Turkey (Türkiye), United Kingdom, United States

Contacts

STUDY_DIRECTORMedical Director

Merck Sharp & Dohme LLC

Participant flow

Participants by arm

ArmCount
MK-7684A + Chemotherapy
Participants receive MK-7684A (co-formulation of 200mg pembrolizumab and 200 mg vibostolimab) via intravenous (IV) infusion on Day 1 of each cycle (cycle length = 3 weeks) for up to 35 cycles (up to \ 2 years) PLUS paclitaxel IV (on Day 1 of each cycle) OR nab-paclitaxel IV (on Days 1, 8, and 15 of each cycle) and carboplatin IV (on Day 1 of each cycle) for 4 cycles for Squamous NSCLC; PLUS carboplatin IV (on Day 1 of each cycle) or cisplatin IV (on Day 1 of each cycle) for 4 cycles and pemetrexed IV (on Day 1 of each cycle) until progression, intolerable adverse events, or participant/physician decision for Non-squamous.
366
Pembrolizumab + Chemotherapy
Participants receive pembrolizumab 200 mg via IV infusion on Day 1 of each cycle (cycle length = 3 weeks) for up to 35 cycles (up to \ 2 years) PLUS paclitaxel IV (on Day 1 of each cycle) OR nab-paclitaxel IV (on Days 1, 8, and 15 of each cycle) and carboplatin IV (on Day 1 of each cycle) for 4 cycles for Squamous NSCLC; PLUS carboplatin IV (on Day 1 of each cycle) or cisplatin IV (on Day 1 of each cycle) for 4 cycles and pemetrexed IV (on Day 1 of each cycle) until progression, intolerable adverse events, or participant/physician decision for Non-squamous.
373
Total739

Baseline characteristics

CharacteristicPembrolizumab + ChemotherapyTotalMK-7684A + Chemotherapy
Age, Continuous64.3 Years
STANDARD_DEVIATION 8.9
64.3 Years
STANDARD_DEVIATION 8.6
64.3 Years
STANDARD_DEVIATION 8.3
Ethnicity (NIH/OMB)
Hispanic or Latino
92 Participants190 Participants98 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
249 Participants480 Participants231 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
32 Participants69 Participants37 Participants
Race (NIH/OMB)
American Indian or Alaska Native
22 Participants50 Participants28 Participants
Race (NIH/OMB)
Asian
131 Participants256 Participants125 Participants
Race (NIH/OMB)
Black or African American
5 Participants14 Participants9 Participants
Race (NIH/OMB)
More than one race
5 Participants13 Participants8 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
210 Participants406 Participants196 Participants
Sex: Female, Male
Female
121 Participants219 Participants98 Participants
Sex: Female, Male
Male
252 Participants520 Participants268 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
190 / 366193 / 373
other
Total, other adverse events
349 / 360352 / 368
serious
Total, serious adverse events
205 / 360180 / 368

Outcome results

Primary

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

Population: The analysis population includes all randomized participants with PD-L1 TPS≥1%. Participants were analyzed in the treatment group to which they were randomized.

ArmMeasureValue (MEDIAN)
MK-7684A + ChemotherapyOverall Survival (OS) in Participants With Programmed Cell Death-Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥1%19.4 Months
Pembrolizumab + ChemotherapyOverall Survival (OS) in Participants With Programmed Cell Death-Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥1%23.5 Months
p-value: 0.833595% CI: [0.87, 1.5]Log Rank
Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

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)

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned electronic patient-reported outcome (ePRO) data are unavailable.

Secondary

Duration of Response (DOR)

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned DOR data are unavailable.

Secondary

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

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 approximately 46 months

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ORR data are unavailable.

Secondary

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

Population: The analysis population includes all randomized participants. Participants were analyzed in the treatment group to which they were randomized.

ArmMeasureValue (MEDIAN)
MK-7684A + ChemotherapyOverall Survival (OS) in All Participants20.0 Months
Pembrolizumab + ChemotherapyOverall Survival (OS) in All Participants19.7 Months
p-value: 0.510495% CI: [0.82, 1.23]Log Rank
Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned PFS data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Secondary

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

Population: After additional Futility Analysis of OS was performed before the first efficacy analysis, as per the supplemental Statistical Analysis Plan amendment (effective date: September 16, 2025) it was stated that no further efficacy analyses would be performed, so the originally planned ePRO data are unavailable.

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026