ClinicalTrials.gg
TerminatedNCT04738487Updated Sep 17, 2026Results posted

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 interventional study of Pembrolizumab/Vibostolimab and Pembrolizumab in Lung Neoplasms and Non-Small-Cell Lung Carcinoma, sponsored by Merck Sharp & Dohme LLC. Terminated at 188 sites in 23 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-17.

Primary conditionCarcinoma, Non-Small-Cell LungRegistry: Lung NeoplasmsReclassifiedWhy we changed it
Registry
Lung Neoplasms — the first condition term the registry derived for this study.
ClinicalTrials.gg
Carcinoma, Non-Small-Cell Lung
Why
  1. The study's listed conditions name Carcinoma, Non-Small-Cell Lung, a narrower term within Lung Neoplasms.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Merck Sharp & Dohme LLC (part of Merck & Co., Inc) · Phase 3, Interventional, and Treatment

Why this study was terminated
Business Reasons
Phase
Phase 3
Study type
Interventional
Enrollment
1,264
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 127 studies testing pembrolizumab in Carcinoma, Non-Small-Cell Lung — 29 open to participants now, 48 under way, 13 of them phase 3. pembrolizumab · Carcinoma, Non-Small-Cell Lung.

Enrollment
4th of 127
1,264 · median 65
Started
2021
with 7 others
Phase 3
28 of 127
4 open now
Registered
81st of 127
by date
Lead sponsor
27 of 127
Merck Sharp & Dohme LLC

Among the 127 studies testing pembrolizumab in Carcinoma, Non-Small-Cell Lung, this one is the 4th largest by enrollment, is one of 8 that started in 2021, is one of 28 in phase 3, and was the 81st registered.

Carcinoma, Non-Small-Cell Lung

7,620 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,838 are open to participants now.

This study's enrollment of 1,264 is above the median of 62 across 6,019 interventional studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

Open to participants now

29 of the 127 studies testing pembrolizumab in Carcinoma, Non-Small-Cell Lung are open now, in 10 countries. Each count lists the studies.

All 29 open studies →

About pembrolizumab

pembrolizumab: first FDA approval 2014 (KEYTRUDA), first EMA approval 2015. What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 1,324 Carcinoma, Non-Small-Cell Lung studies recruiting now, 986 (74%) set no upper age limit and 226 (17%) stop at 75 or younger; 34 take children under 18; 39 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →
Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 127 studies testing pembrolizumab in Carcinoma, Non-Small-Cell Lung, or all of them as a file.
02

Study 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.

Read the 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.

03

Conditions studied

  • Lung Neoplasms
  • Non-Small-Cell Lung Carcinoma

Browse trials for

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)
04

In context

Carcinoma, Non-Small-Cell Lung Reclassified

7,620 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,838 are open to participants now.

This study's enrollment of 1,264 is above the median of 62 across 6,019 interventional studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

Lead sponsor

Merck Sharp & Dohme LLC is the lead sponsor of 2,166 studies on the registry; 132 are open to participants now.

Of its 501 completed or terminated interventional studies of FDA-regulated products, 370 (74%) have results posted.

Compared within Carcinoma, Non-Small-Cell Lung, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Lung Neoplasms. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Has a 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 based on (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 () expression in ≥1% of tumor cells as assessed by immunohistochemistry (IHC) at a central laboratory
  • Has an (ECOG) performance score of 0 or 1 assessed within 7 days prior to randomization
  • Has a 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 (WOCBP)
    • Is a WOCBP and using a 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

Exclusion Criteria:

  • Has a known history of an additional , 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 NSCLC.

    • Prior treatment with chemotherapy and/or radiation as part of /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 (), 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 , and not have had radiation pneumonitis. A 1-week is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-central nervous system (CNS) disease
  • Has received a live or 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.
    • 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 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 (≥Grade 3) to pembrolizumab/vibostolimab or pembrolizumab and/or any of its
  • Has an active disease that has required systemic treatment in past 2 years (ie, with use of disease modifying agents, corticosteroids, or 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 (HIV) infection. No HIV testing is required unless mandated by local health authority
  • Has a known history of or known active 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 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
Terms in these criteria, in plain language(24)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

06

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,264 participants (actual)

Study arms

  • Experimental
    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).

    Biological: Pembrolizumab/Vibostolimab

  • Active comparator
    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 second course of treatment based on original randomization assignment for up to 17 cycles (up to \~1 year).

    Biological: Pembrolizumab

Interventions

  • BiologicalPembrolizumab/Vibostolimab

    Drug pages: Pembrolizumab · Vibostolimab

    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).

    Also known as: MK-7684A

  • BiologicalPembrolizumab

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

    Also known as: MK-3475, Keytruda

07

What researchers measure

Primary outcomes

  1. 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

Secondary outcomes

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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

  28. 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

  29. 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

  30. 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

  31. 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

  32. 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

  33. 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

  34. 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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  40. 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

  41. 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

  42. 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

  43. 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

  44. 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

  45. 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

  46. 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

  47. 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

  48. 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

  49. 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

08

Results

Posted Aug 26, 2025

Participant flow

Participant flow — Overall Study
MilestonePembrolizumab/VibostolimabPembrolizumab
Started594612
Treated593610
Received pembrolizumab/vibostolimab (mk-7684a) second course10
Received pembrolizumab second course03
Completed00
Not completed594612
Withdrew: Participant ongoing in study298297
Withdrew: Withdrawal by subject79
Withdrew: Lost to follow-up20
Withdrew: Death287306

Outcome measures

PrimaryOverall 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
Reported as:
Median · Months
Overall Survival (OS) in Participants With PD-L1 TPS ≥50%
MonthsPembrolizumab/VibostolimabPembrolizumab
Overall Survival (OS) in Participants With PD-L1 TPS ≥50%15.7 (12.4 to 24.0)20.3 (16.7 to 24.2)
Statistical analysis
  • Pembrolizumab/Vibostolimab vs Pembrolizumab · Log Rank · p = 0.6712 (One-sided p-value based on log-rank test.) · Hazard ratio (hr): 1.06 · 95% CI 0.83 to 1.35Based on Cox regression model with Efron's method of tie handling with treatment as a covariate.
SecondaryOS 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
Reported as:
Median · Months
OS in Participants With PD-L1 TPS ≥1%
MonthsPembrolizumab/VibostolimabPembrolizumab
OS in Participants With PD-L1 TPS ≥1%15.0 (12.7 to 17.4)16.4 (14.9 to 19.1)
Statistical analysis
  • Pembrolizumab/Vibostolimab vs Pembrolizumab · Log Rank · p = 0.3320 (One-sided p-value based on log-rank test.) · Hazard ratio (hr): 0.96 · 95% CI 0.82 to 1.13Based on Cox regression model with Efron's method of tie handling with treatment as a covariate.
SecondaryOS 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
Reported as:
Median · Months
OS in Participants With PD-L1 TPS 1% to 49%
MonthsPembrolizumab/VibostolimabPembrolizumab
OS in Participants With PD-L1 TPS 1% to 49%14.3 (11.3 to 17.8)14.3 (11.7 to 16.1)
Statistical analysis
  • Pembrolizumab/Vibostolimab vs Pembrolizumab · Log Rank · p = 0.1646 (One-sided p-value based on log-rank test.) · Hazard ratio (hr): 0.90 · 95% CI 0.72 to 1.11Based on Cox regression model with Efron's method of tie handling with treatment as a covariate.
SecondaryProgression-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

Results for this outcome have not been posted.

SecondaryPFS 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

Results for this outcome have not been posted.

SecondaryPFS 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

Results for this outcome have not been posted.

SecondaryObjective 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

Results for this outcome have not been posted.

SecondaryORR 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

Results for this outcome have not been posted.

SecondaryORR 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

Results for this outcome have not been posted.

SecondaryDuration 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

Results for this outcome have not been posted.

SecondaryDOR 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

Results for this outcome have not been posted.

SecondaryDOR 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryChange 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

Results for this outcome have not been posted.

SecondaryTime 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryTTD 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

Results for this outcome have not been posted.

SecondaryNumber 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

Results for this outcome have not been posted.

SecondaryNumber 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

Results for this outcome have not been posted.

Adverse events

Collected over Up to approximately 39 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Pembrolizumab/Vibostolimab First Course291/594 (49%)249/593 (42%)478/593 (80.6%)
Pembrolizumab First Course310/612 (50.7%)220/610 (36.1%)472/610 (77.4%)
Pembrolizumab/Vibostolimab Second Course0/1 (0%)0/1 (0%)1/1 (100%)
Pembrolizumab Second Course0/3 (0%)0/3 (0%)2/3 (66.7%)
Most frequent serious events
Showing 10 of 263
Most frequent serious events
EventPembrolizumab/Vibostolimab First CoursePembrolizumab First CoursePembrolizumab/Vibostolimab Second CoursePembrolizumab Second Course
PneumoniaInfections and infestations57/59356/6100/10/3
PneumonitisRespiratory, thoracic and mediastinal disorders14/5938/6100/10/3
Pleural effusionRespiratory, thoracic and mediastinal disorders13/59312/6100/10/3
Urinary tract infectionInfections and infestations10/5938/6100/10/3
Chronic obstructive pulmonary diseaseRespiratory, thoracic and mediastinal disorders10/5936/6100/10/3
DeathGeneral disorders5/59310/6100/10/3
COVID-19Infections and infestations8/5936/6100/10/3
Pulmonary embolismRespiratory, thoracic and mediastinal disorders7/5938/6100/10/3
Respiratory failureRespiratory, thoracic and mediastinal disorders7/5934/6100/10/3
SepsisInfections and infestations1/5937/6100/10/3
Most frequent other events
Showing 10 of 36
Most frequent other events
EventPembrolizumab/Vibostolimab First CoursePembrolizumab First CoursePembrolizumab/Vibostolimab Second CoursePembrolizumab Second Course
White blood cell count decreasedInvestigations21/5939/6101/10/3
AnaemiaBlood and lymphatic system disorders145/593117/6100/11/3
HypothyroidismEndocrine disorders56/59367/6100/11/3
Urinary tract infectionInfections and infestations32/59327/6100/11/3
PruritusSkin and subcutaneous tissue disorders106/59357/6100/10/3
RashSkin and subcutaneous tissue disorders92/59353/6100/10/3
Decreased appetiteMetabolism and nutrition disorders74/59384/6100/10/3
Aspartate aminotransferase increasedInvestigations78/59379/6100/10/3
Alanine aminotransferase increasedInvestigations73/59372/6100/10/3
Weight decreasedInvestigations72/59369/6100/10/3

Baseline characteristics

Per protocol, analysis population consisted of all participants randomized by the primary completion data cut-off.

Age, Continuous
Age, Continuous(Years)Pembrolizumab/VibostolimabPembrolizumabTotal
Mean66.5 ± 9.866.3 ± 10.266.4 ± 10.0
Sex: Female, Male
Sex: Female, Male(Participants)Pembrolizumab/VibostolimabPembrolizumabTotal
Female177172349
Male417440857
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Pembrolizumab/VibostolimabPembrolizumabTotal
Hispanic or Latino152132284
Not Hispanic or Latino434471905
Unknown or Not Reported8917
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Pembrolizumab/VibostolimabPembrolizumabTotal
American Indian or Alaska Native242852
Asian247271518
Native Hawaiian or Other Pacific Islander000
Black or African American538
White291288579
More than one race252247
Unknown or Not Reported202
Eastern Cooperative Oncology Group (ECOG) Performance Status
Eastern Cooperative Oncology Group (ECOG) Performance Status(Participants)Pembrolizumab/VibostolimabPembrolizumabTotal
ECOG = 0165163328
ECOG = 1429448877
ECOG = 2011
Programmed Cell Death Ligand 1 (PD-L1) Status at Baseline
Programmed Cell Death Ligand 1 (PD-L1) Status at Baseline(Participants)Pembrolizumab/VibostolimabPembrolizumabTotal
TPS ≥ 50%272307579
TPS 1-49%322305627
Geographic Region
Geographic Region(Participants)Pembrolizumab/VibostolimabPembrolizumabTotal
East Asia239260499
Non-East Asia355352707
09

Study locations

188 sites
  • Boca Raton Regional Hospital ( Site 0004)
    Boca Raton, Florida 33486, United States
  • Illinois Cancer Care ( Site 0026)
    Peoria, Illinois 61615, United States
  • Mercy Research - Cancer and Hematology Center ( Site 0032)
    Springfield, Missouri 65804, United States
  • Mercy Research - David C. Pratt Cancer Center ( Site 0025)
    St Louis, Missouri 63141, United States
  • Perlmutter Cancer Center at NYU Langone Hospital - Long Island ( Site 0022)
    Mineola, New York 11501, United States
  • Memorial Sloan Kettering Cancer Center ( Site 0013)
    New York, New York 10065, United States
  • Fox Chase Cancer Center-Hematology/Oncology ( Site 0030)
    Philadelphia, Pennsylvania 19111, United States
  • Hospital São Carlos-Oncocentro Ce ( Site 0208)
    Fortaleza, Ceará 60135-237, Brazil
  • Liga Norte Riograndense Contra o Câncer-Centro de Pesquisa Clínica ( Site 0201)
    Natal, Rio Grande do Norte 59075-740, Brazil
  • ONCOSITE - Centro de Pesquisa Clinica em Oncologia ( Site 0206)
    Ijuí, Rio Grande do Sul 98700-000, Brazil
  • Irmandade da Santa Casa de Misericórdia de Porto Alegre-Centro de Pesquisa Novos Tratamentos em Cân
    Porto Alegre, Rio Grande do Sul 90050-170, Brazil
  • CEPEN - Centro de Pesquisa e Ensino em Oncologia de Santa Catarina ( Site 0209)
    Florianópolis, Santa Catarina 88020-210, Brazil
  • Instituto Nacional de Câncer José Alencar Gomes da Silva - INCA ( Site 0204)
    Rio de Janeiro, 20231-050, Brazil
  • ICESP - INSTITUTO DO CÂNCER DO ESTADO DE SÃO PAULO-Pesquisa Clinica ( Site 0200)
    São Paulo, 01246-000, Brazil
  • Núcleo de Pesquisa Clínica da Rede São Camilo ( Site 0207)
    São Paulo, 04014-002, Brazil
  • BC Cancer Victoria-Clinical Trials Unit ( Site 0107)
    Victoria, British Columbia V8R 6V5, Canada
  • Hamilton Health Sciences-Juravinski Cancer Centre ( Site 0104)
    Hamilton, Ontario L8V 5C2, Canada
  • Kingston Health Sciences Centre-Kingston General Hospital Site ( Site 0102)
    Kingston, Ontario K7L 2V7, Canada
  • Lakeridge Health ( Site 0106)
    Oshawa, Ontario L1G 2B9, Canada
  • Centre Intégré de Santé et de Services Sociaux (CISSS) de La-Centre intégré de cancérologie de Lava
    Laval, Quebec H7M 3L9, Canada
  • James Lind Centro de Investigacion del Cancer ( Site 0711)
    Temuco, Araucania 4800827, Chile
  • CIDO SpA-Oncology ( Site 0707)
    Temuco, Araucania 4810218, Chile
  • IC La Serena Research ( Site 0710)
    La Serena, Coquimbo Region 1720430, Chile
  • Clínica Puerto Montt ( Site 0713)
    Port Montt, Los Lagos Region 5500243, Chile
  • Oncocentro Valdivia ( Site 0715)
    Valdivia, Los Ríos Region 5112129, Chile
  • Clinica Universidad Catolica del Maule-Oncology ( Site 0703)
    Talca, Maule Region 3465584, Chile
  • Centro de Estudios Clínicos SAGA-CECSAGA ( Site 0712)
    Santiago, Region M. de Santiago 7500653, Chile
  • Orlandi Oncologia ( Site 0700)
    Santiago, Region M. de Santiago 7500713, Chile
  • FALP ( Site 0702)
    Santiago, Region M. de Santiago 7500921, Chile
  • Bradfordhill ( Site 0701)
    Santiago, Region M. de Santiago 8420383, Chile
  • Bradford Hill Norte ( Site 0708)
    Antofagasta, 1240000, Chile
  • The First Affiliated Hospital of Anhui Medical University ( Site 2022)
    Hefei, Anhui 230000, China
  • Anhui Provincil Hospital South District-Respiratory Medicine Dept ( Site 2017)
    Hefei, Anhui 230036, China
  • Cancer Hospital Chinese Academy of Medical Science-Oncology ( Site 2030)
    Beijing, Beijing Municipality 100021, China
  • Beijing Cancer hospital-intrathoratic deparmtment II ( Site 2001)
    Beijing, Beijing Municipality 100142, China
  • Beijing Cancer hospital-Thoracic Cancer Department A ( Site 2003)
    Beijing, Beijing Municipality 100142, China
  • Beijing Peking Union Medical College Hospital-pneumology department ( Site 2009)
    Beijing, Beijing Municipality 100730, China
  • Beijing Chest Hospital,Capital Medical University ( Site 2020)
    Beijing, Beijing Municipality 101149, China
  • Chongqing Cancer Hospital-Medical Oncology ( Site 2028)
    Chongqing, Chongqing Municipality 400030, China
  • Army Medical Center of People's Liberation Army-respiratory ( Site 2025)
    Chongqing, Chongqing Municipality 400042, China
  • Fujian Provincial Cancer Hospital-oncology department ( Site 2023)
    Fuzhou, Fujian 350014, China
  • Fuzhou General hospital of Nanjing Military Command-Oncology Department ( Site 2029)
    Fuzhou, Fujian 350025, China
  • Southern Medical University Nanfang Hospital-Depatrment of Respiratory and Critical Care Medicine (
    Guangzhou, Guangdong 510515, China
  • Harbin Medical University Cancer Hospital ( Site 2006)
    Harbin, Heilongjiang 150081, China
  • Henan Cancer Hospital ( Site 2015)
    Zhengzhou, Henan 450008, China
  • Wuhan Union Hospital-Medical Oncology ( Site 2019)
    Wuhan, Hubei 430010, China
  • Xiangya Hospital Central South University-Respiratory -Asthma&COPD ( Site 2026)
    Changsha, Hunan 410008, China
  • Hunan Cancer Hospital-thoracic oncology II ( Site 2013)
    Changsha, Hunan 410013, China
  • Northern Jiangsu People's Hospital-General Surgery Department ( Site 2016)
    Yangzhou, Jiangsu 225001, China
  • Jilin Cancer Hospital-oncology department ( Site 2000)
    Changchun, Jilin 132000, China
  • Tang Du Hospital ( Site 2004)
    Xi'an, Shaanxi 710038, China
  • The First Affiliated Hospital of Xian Jiaotong University wa-Oncology ( Site 2012)
    Xi'an, Shaanxi 710061, China
  • LinYi Cancer Hospital ( Site 2034)
    Linyi, Shandong 276001, China
  • Linyi People's Hospital-Oncology ( Site 2035)
    Linyi, Shandong, China
  • Fudan University Shanghai Cancer Center ( Site 2032)
    Shanghai, Shanghai Municipality 200032, China
  • West China Hospital Sichuan University-respiratory ( Site 2018)
    Chengdu, Sichuan 610041, China
  • Hangzhou Cancer Hospital-Medical Oncology ( Site 2039)
    Hangzhou, Zhejiang 310002, China
  • Zhejiang Cancer Hospital-Breast Oncology ( Site 2008)
    Hangzhou, Zhejiang 310022, China
  • The Second Affiliated hospital of Zhejiang University school of medicine-Respiratory Medicine ( Site
    Hangzhou, Zhejiang 310052, China
  • Taizhou Hospital of Zhejiang Province-Respiratory ( Site 2027)
    Linhai, Zhejiang 317000, China
  • The First Affiliated Hospital of Wenzhou Medical University-Respiratory department ( Site 2031)
    Wenzhou, Zhejiang 325015, China
  • Instituto de Oncologia ( Site 2300)
    Santo Domingo, Nacional 10102, Dominican Republic
  • CEMDOE - Centro Médico de Diabetes, Obesidad y Especialidades ( Site 2301)
    Santo Domingo, Nacional 10104, Dominican Republic
  • CELAN,S.A ( Site 0304)
    Guatemala City, 01010, Guatemala
  • Gastrosoluciones ( Site 0302)
    Guatemala City, 01010, Guatemala
  • INTEGRA Cancer Institute ( Site 0303)
    Guatemala City, 01010, Guatemala
  • Onco Go, S.A ( Site 0306)
    Guatemala City, 01010, Guatemala
  • Oncomedica-Guatemala ( Site 0301)
    Guatemala City, 01010, Guatemala
  • Grupo Medico Angeles ( Site 3007)
    Guatemala City, 01015, Guatemala
  • Hong Kong Integrated Oncology Centre ( Site 1301)
    Central, 0000, Hong Kong
  • Queen Mary Hospital ( Site 1303)
    Hksar, Hong Kong
  • Hong Kong United Oncology Centre ( Site 1302)
    Jordan, Hong Kong
  • Princess Margaret Hospital ( Site 1304)
    Lai Chi Kok, 999007, Hong Kong
  • Békés Megyei Központi Kórház Pándy Kálmán Tagkórház-Megyei Onkológiai Centrum ( Site 1207)
    Gyula, Bekes County 5700, Hungary
  • Bacs-Kiskun Megyei Korhaz-Onkoradiologiai Kozpont ( Site 1201)
    Kecskemét, Bács-Kiskun county 6000, Hungary
  • Petz Aladar Egyetemi Oktato Korhaz-Pulmonológia ( Site 1205)
    Győr, Győr-Moson-Sopron 9024, Hungary
  • Mátrai Gyógyintézet ( Site 1214)
    Kékestető, Heves County 3233, Hungary
  • Jász-Nagykun-Szolnok Megyei Hetényi Géza Kórház-Onkologiai Kozpont ( Site 1200)
    Szolnok, Jász-Nagykun-Szolnok 5000, Hungary
  • Országos Korányi Pulmonológiai Intézet-XIV. Tüdöbelgyógyászat ( Site 1204)
    Budapest, Pest County 1121, Hungary
  • Reformatus Pulmonologiai Centrum-Onkopulmonologiai Jarobeteg Centrum ( Site 1208)
    Törökbálint, Pest County 2045, Hungary
  • Zala Megyei Szent Rafael Kórház-Pulmonológia ( Site 1202)
    Zalaegerszeg, Zala County 8900, Hungary
  • Semmelweis University-Pulmonológiai Klinika ( Site 1209)
    Budapest, 1083, Hungary
  • Artemis hospital ( Site 2401)
    Gurugram, Haryana 122001, India
  • Tata Memorial Hospital-Medical Oncology ( Site 2404)
    Mumbai, Maharashtra 400012, India
  • All India Institute of Medical Sciences ( Site 2403)
    New Delhi, National Capital Territory of Delhi 110029, India
  • Rajiv Gandhi Cancer Institute And Research Centre ( Site 2400)
    New Delhi, National Capital Territory of Delhi 110085, India
  • National Hospital Organization Nagoya Medical Center ( Site 1920)
    Nagoya, Aichi-ken 460-0001, Japan
  • Fujita Health University ( Site 1906)
    Toyoake, Aichi-ken 470-1192, Japan
  • Ehime University Hospital ( Site 1911)
    Tōon, Ehime 791-0295, Japan
  • Kurume University Hospital ( Site 1912)
    Kurume, Fukuoka 830-0011, Japan
  • Gunma Prefectural Cancer Center ( Site 1925)
    Otashi, Gunma 373-8550, Japan
  • National Hospital Organization Hokkaido Cancer Center ( Site 1923)
    Sapporo, Hokkaido 003-0804, Japan
  • Hyogo College of Medicine-Respiratory Medicine and Hematology ( Site 1922)
    Nishinomiya, Hyōgo 663-8501, Japan
  • Takarazuka City Hospital ( Site 1924)
    Takarazuka, Hyōgo 665-0827, Japan
  • Kanagawa Cardiovascular and Respiratory Center ( Site 1921)
    Yokohama, Kanagawa 236-0051, Japan
  • Kanagawa cancer center ( Site 1916)
    Yokohama, Kanagawa 241-8515, Japan
  • Sendai Kousei Hospital ( Site 1900)
    Sendai, Miyagi 981-0914, Japan
  • Niigata Cancer Center Hospital ( Site 1904)
    Niigata, Niigata 951-8566, Japan
  • Kansai Medical University Hospital ( Site 1914)
    Hirakata, Osaka 573-1191, Japan
  • Kindai University Hospital- Osakasayama Campus ( Site 1907)
    Ōsaka-sayama, Osaka 589-8511, Japan

Showing the first 100 of 188 sites across 23 countries. Choose a country and city above to see the rest.

10

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Data sharing details ↗ · externaldatasharing-msd.com

11

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Apr 2021 to primary completion in Sep 2024, 40 months.

Results were first posted in Aug 2025, 11 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 2, 2021
First posted
Feb 4, 2021
StartActual
Apr 7, 2021
Primary completionActual
Sep 5, 2024
CompletionActual
Jan 27, 2026
Results first posted
Aug 26, 2025
Last update
Sep 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
12

Registry details

Key details

Study ID
NCT04738487
Responsible party
Sponsor
First posted
Feb 4, 2021
Start date
Apr 7, 2021
Primary completion
Sep 5, 2024
Completion
Jan 27, 2026
Results posted
Aug 26, 2025
Last update
Sep 17, 2026

Study contacts

Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drugs tested here: Pembrolizumab · Vibostolimab

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