ClinicalTrials.gg
CompletedNCT02252042Updated Jul 17, 2023Results posted

Pembrolizumab (MK-3475) Versus Standard Treatment for Recurrent or Metastatic Head and Neck Cancer (MK-3475-040/KEYNOTE-040)

A Phase 3 interventional study of Pembrolizumab and Methotrexate in Head and Neck Squamous Cell Cancer, sponsored by Merck Sharp & Dohme LLC. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-07-17.

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

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Phase
Phase 3
Study type
Interventional
Enrollment
495
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 17 studies testing pembrolizumab in Carcinoma, Squamous Cell — 3 open to participants now, 7 under way, none of them phase 3. pembrolizumab · Carcinoma, Squamous Cell.

Enrollment
2nd of 17
495 · median 48
Started
2014
the only one that year
Phase 3
2 of 17
none open now
Registered
1st of 17
by date
Lead sponsor
4 of 17
Merck Sharp & Dohme LLC

Among the 17 studies testing pembrolizumab in Carcinoma, Squamous Cell, this one is the 2nd largest by enrollment, is the only one that started in 2014, is one of 2 in phase 3, and was the 1st registered.

Carcinoma, Squamous Cell

628 studies on the registry are indexed under Carcinoma, Squamous Cell; 134 are open to participants now.

Browse Carcinoma, Squamous Cell studies →

Open to participants now

3 of the 17 studies testing pembrolizumab in Carcinoma, Squamous Cell are open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

All 3 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 102 Carcinoma, Squamous Cell studies recruiting now, 86 (84%) set no upper age limit and 8 (8%) stop at 75 or younger; 7 take children under 18; 9 take healthy volunteers.

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

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 17 studies testing pembrolizumab in Carcinoma, Squamous Cell, or all of them as a file.
02

Study summary

This is a study of pembrolizumab (MK-3475, KEYTRUDA®) versus standard treatment (methotrexate, docetaxel or cetuximab) for the treatment of recurrent or metastatic head and neck squamous cell cancer (HNSCC). Participants will be randomly assigned to receive either pembrolizumab or Investigator's choice of standard treatment. The primary study hypothesis is that pembrolizumab treatment prolongs Overall Survival (OS) when compared to standard treatment.

03

Conditions studied

  • Head and Neck Squamous Cell Cancer

Keywords

  • Squamous cell carcinoma
  • Head and neck carcinoma
  • Programmed Cell Death-1 (PD1, PD-1),
  • Programmed Death-Ligand 1 (PDL1, PD-L1)
  • Programmed Cell Death Receptor Ligand 2 (PDL2, PD-L2)
04

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 - or cytologically-confirmed recurrent disease not amenable to curative treatment with local or systemic therapy, or (disseminated) head and neck squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, and larynx that is considered incurable by local therapies
  • Failure of prior platinum therapy
  • Radiographically- based on 1.1
  • Tumor tissue available for biomarker analysis
  • (ECOG) performance status of 0 or 1
  • Adequate organ function
  • Female participants of must be willing to use 2 methods of or abstain from heterosexual activity for the course of the study through 120 days after last dose of pembrolizumab or through 120-180 days after the last dose of docetaxel, methotrexate or cetuximab, acccording to local standard of care
  • Male participants must agree to use an adequate method of contraception starting with the first dose of study therapy through 120 days after last dose of pembrolizumab or through 120-180 days after the last dose of docetaxel, methotrexate or cetuximab, acccording to local standard of care

Exclusion criteria

Exclusion Criteria

  • Disease is suitable for local therapy administered with curative intent
  • Currently participating in or has participated in a study of an agent or using an investigational device within 4 weeks prior to randomization
  • Previously treated with 3 or more systemic regimens given for recurrent and/or disease
  • Diagnosis of immunodeficiency or receiving systemic therapy or any other form of therapy within 7 days prior to the first dose of study therapy
  • Not recovered from adverse events due to therapy more than 4 weeks earlier
  • Prior anti-cancer monoclonal antibody (mAb) therapy within 4 weeks prior to study Day 1, or not recovered from adverse events due to agents administered more than 4 weeks earlier
  • Prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study Day 1
  • Diagnosed and/or treated additional within 5 years of randomization, with the exception of curatively-treated basal cell or squamous cell carcinoma of the skin, and/or curatively-resected in situ cervical and/or breast cancers
  • Active disease that has required systemic therapy in the past 2 years with modifying agents, corticosteroids, or immunosuppressive agents
  • Active central nervous system (CNS) metastases and/or carcinomatous meningitis
  • Active, non-infectious pneumonitis
  • Active infection requiring systemic therapy
  • Pregnant, breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the screening visit through 120 days after the last dose of trial therapy according to local standard of care
  • Prior therapy with an or anti-PD1-L1 or -L2 therapy or previously participated in a Merck pembrolizumab (MK-3475) trial
  • (HIV)
  • or C
  • within 30 days of planned start of study therapy
Terms in these criteria, in plain language(16)

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.

Metastases

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
495 participants (actual)

Study arms

  • Experimental
    Pembroliziumab

    Participants will receive pembrolizumab 200 mg intravenous (IV) on Day 1 of each 3-week cycle for up to approximately 24 months. Eligible participants who stop pembrolizumab with Stable Disease (SD) or better but progress after discontinuation may be able to initiate a second course of pembrolizumab for up to approximately 1 additional year at the investigator's discretion.

    Biological: Pembrolizumab

  • Active comparator
    Standard Treatment

    Participants will receive standard treatment of either methotrexate 40 mg/m\^2 IV (may be escalated to 60 mg/m\^2 maximum dose) on Days 1, 8, and 15 of each 3-week cycle; or docetaxel 75 mg/m\^2 IV on Day 1 of each 3- week cycle; or cetuximab 400 mg/m\^2 IV loading dose on Day 1 and 250 mg/m\^2 IV on Days 8 and 15 of Cycle 1, followed by cetuximab 250 mg/m\^2 on Days 1, 8, and 15 of each subsequent 3-week cycle.

    Drug: Methotrexate · Drug: Docetaxel · Biological: Cetuximab

Interventions

  • BiologicalPembrolizumab

    200 mg intravenous (IV) on Day 1 of each 3-week cycle.

    Also known as: MK-3475, KEYTRUDA®

  • 40 mg/m\^2 IV (may be escalated to 60 mg/m\^2 maximum dose) on Days 1, 8, and 15 of each 3-week cycle

  • 75 mg/m\^2 IV on Day 1 of each 3- week cycle

  • BiologicalCetuximab

    400 mg/m\^2 IV loading dose on Day 1 and 250 mg/m\^2 IV on Days 8 and 15 of Cycle 1, followed by 250 mg/m\^2 on Days 1, 8, and 15 of each subsequent 3-week cycle.

06

What researchers measure

Primary outcomes

  1. Initial Overall Survival (OS) for All Participants

    OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis were to be censored at the date of the last follow-up. The OS for all participants is presented. These initial OS results are based on a data cutoff date of 15-May-2017 with a database lock date of 04-Jun-2017. At the time of the database lock of 04-Jun-2017, there was incomplete collection of survival data for 12 participants.

    Time frame: Up to approximately 2 years

  2. Updated Final OS for All Participants

    OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis were to be censored at the date of the last follow-up. The updated OS for all participants is presented. These OS results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

Secondary outcomes

  1. OS for Participants With Programmed Cell Death-Ligand 1 (PD-L1)-Positive Expression Defined by ≥1% Combined Positive Score (CPS)(PD-L1 ≥1% CPS)

    OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis were censored at the date of the last follow-up. The OS for all participants with PD-L1 expression ≥1% CPS was presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  2. Progression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 for All Participants

    PFS was defined as the time from randomization to the first documented disease progression per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The PFS per RECIST 1.1 for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  3. PFS Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

    PFS was defined as the time from randomization to the first documented disease progression per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The PFS per RECIST 1.1 for all participants with PD-L1 expression ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  4. Objective Response Rate (ORR) Per RECIST 1.1 in All Participants

    ORR was defined as the percentage of the participants in the analysis population who had 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 RECIST 1.1 based on blinded central imaging vendor review with or without confirmation. The ORR per RECIST 1.1 for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  5. ORR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

    ORR was defined as the percentage of the participants in the analysis population who had 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 RECIST 1.1 based on blinded central imaging vendor review with or without confirmation. The ORR per RECIST 1.1 for all participants with PD-L1 expression ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  6. Duration of Response (DOR) Per RECIST 1.1 in All Participants

    For participants who demonstrated a confirmed CR or PR per RECIST 1.1, DOR was defined as the time from first documented evidence of a confirmed CR or PR per RECIST 1.1 until disease progression per RECIST 1.1 or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. DOR assessments were based on blinded central imaging vendor review with confirmation. The DOR per RECIST 1.1 for all participants who experienced a confirmed CR or PR is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  7. DOR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

    For participants who demonstrated a confirmed CR or PR per RECIST 1.1, DOR was defined as the time from first documented evidence of a confirmed CR or PR per RECIST 1.1 until disease progression per RECIST 1.1 or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. DOR assessments were based on blinded central imaging vendor review with confirmation. The DOR per RECIST 1.1 for all participants with PD-L1 ≥1% CPS who experienced a confirmed CR or PR is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  8. Time to Progression (TTP) Per RECIST 1.1 in All Participants

    TTP was defined as the time from randomization to the first documented disease progression based on assessments by the blinded central imaging vendor review per RECIST 1.1. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The TTP per RECIST 1.1 for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  9. TTP Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

    TTP was defined as the time from randomization to the first documented disease progression based on assessments by the blinded central imaging vendor review per RECIST 1.1. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The TTP per RECIST 1.1 for all participants with PD-L1 ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  10. PFS Per Modified RECIST in All Participants

    PFS was defined as the time from randomization to the first documented progressive disease (PD) per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of ≥5 mm. Note: The appearance of one or more new lesions was also considered PD. Modified RECIST is similar to RECIST 1.1 with the exception that a confirmation assessment of PD (\>4 weeks after the initial PD) is required for participants who remain on treatment following a documented PD per RECIST 1.1. The PFS per modified RECIST for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  11. PFS Per Modified RECIST 1.1 in Participants With PD-L1 ≥1% CPS

    PFS was defined as the time from randomization to the first documented progressive disease (PD) per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of ≥5 mm. Note: The appearance of one or more new lesions was also considered PD. Modified RECIST is similar to RECIST 1.1 with the exception that a confirmation assessment of PD (\>4 weeks after the initial PD) is required for participants who remain on treatment following a documented PD per RECIST 1.1. The PFS per modified RECIST for all participants with PD-L1 ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

    Time frame: Up to approximately 2 years

  12. Number of Participants Who Experienced At Least One Adverse Event (AE) in All Participants

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

    Time frame: Up to approximately 33 months

  13. Number of Participants Who Experienced At Least One AE in Participants With PD-L1 ≥1% CPS

    An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of all participants with PD-L1 ≥1% CPS who experienced at least one AE is presented.

    Time frame: Up to approximately 33 months

  14. Number of Participants Who Discontinued Study Treatment Due to an AE in All Participants

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

    Time frame: Up to approximately 30 months

  15. Number of Participants Who Discontinued Study Treatment Due to an AE in Participants With PD-L1 ≥1% CPS

    An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of all participants with PD-L1 ≥1% CPS who discontinued study treatment due to an AE is presented.

    Time frame: Up to approximately 30 months

07

Results

Posted Aug 13, 2018

Participant flow

Participant flow — Overall Study
MilestonePembrolizumabStandard Treatment
Started247248
Received first course of pembrolizumab246234
Received second course of pembrolizumab20
Completed00
Not completed247248
Withdrew: Adverse event96
Withdrew: Death209217
Withdrew: Physician decision02
Withdrew: Transferred to extension study71
Withdrew: Did not continue on extension study72
Withdrew: Withdrawal by subject1520

Outcome measures

PrimaryInitial Overall Survival (OS) for All Participants

OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis were to be censored at the date of the last follow-up. The OS for all participants is presented. These initial OS results are based on a data cutoff date of 15-May-2017 with a database lock date of 04-Jun-2017. At the time of the database lock of 04-Jun-2017, there was incomplete collection of survival data for 12 participants.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Initial Overall Survival (OS) for All Participants
MonthsPembrolizumabStandard Treatment
Initial Overall Survival (OS) for All Participants8.4 (6.5 to 9.4)7.1 (5.9 to 8.1)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.03160 · Hazard ratio (hr): 0.82 · 95% CI 0.67 to 1.01Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
PrimaryUpdated Final OS for All Participants

OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis were to be censored at the date of the last follow-up. The updated OS for all participants is presented. These OS results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Updated Final OS for All Participants
MonthsPembrolizumabStandard Treatment
Updated Final OS for All Participants8.4 (6.4 to 9.4)6.9 (5.9 to 8.0)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.01605 (Nominal p-value) · Hazard ratio (hr): 0.80 · 95% CI 0.65 to 0.98Nominal HR. Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryOS for Participants With Programmed Cell Death-Ligand 1 (PD-L1)-Positive Expression Defined by ≥1% Combined Positive Score (CPS)(PD-L1 ≥1% CPS)

OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis were censored at the date of the last follow-up. The OS for all participants with PD-L1 expression ≥1% CPS was presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
OS for Participants With Programmed Cell Death-Ligand 1 (PD-L1)-Positive Expression Defined by ≥1% Combined Positive Score (CPS)(PD-L1 ≥1% CPS)
MonthsPembrolizumabStandard Treatment
OS for Participants With Programmed Cell Death-Ligand 1 (PD-L1)-Positive Expression Defined by ≥1% Combined Positive Score (CPS)(PD-L1 ≥1% CPS)8.7 (6.9 to 11.4)7.1 (5.7 to 8.3)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.00493 · Hazard ratio (hr): 0.74 · 95% CI 0.58 to 0.93Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryProgression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 for All Participants

PFS was defined as the time from randomization to the first documented disease progression per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The PFS per RECIST 1.1 for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Progression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 for All Participants
MonthsPembrolizumabStandard Treatment
Progression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 for All Participants2.1 (2.1 to 2.3)2.3 (2.1 to 2.8)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.32504 · Hazard ratio (hr): 0.96 · 95% CI 0.79 to 1.16Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryPFS Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

PFS was defined as the time from randomization to the first documented disease progression per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The PFS per RECIST 1.1 for all participants with PD-L1 expression ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
PFS Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS
MonthsPembrolizumabStandard Treatment
PFS Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS2.2 (2.1 to 3.0)2.3 (2.1 to 3.0)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.07736 · Hazard ratio (hr): 0.86 · 95% CI 0.69 to 1.06Cox regression model with treatment as a single covariate
SecondaryObjective Response Rate (ORR) Per RECIST 1.1 in All Participants

ORR was defined as the percentage of the participants in the analysis population who had 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 RECIST 1.1 based on blinded central imaging vendor review with or without confirmation. The ORR per RECIST 1.1 for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Number · Percentage of Participants
Objective Response Rate (ORR) Per RECIST 1.1 in All Participants
Percentage of ParticipantsPembrolizumabStandard Treatment
Objective Response Rate (ORR) Per RECIST 1.1 in All Participants14.6 (10.4 to 19.6)10.1 (6.6 to 14.5)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.0610 · Difference in percentages: 4.6 · 95% CI -1.2 to 10.6Stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryORR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

ORR was defined as the percentage of the participants in the analysis population who had 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 RECIST 1.1 based on blinded central imaging vendor review with or without confirmation. The ORR per RECIST 1.1 for all participants with PD-L1 expression ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Number · Percentage of Participants
ORR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS
Percentage of ParticipantsPembrolizumabStandard Treatment
ORR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS17.3 (12.3 to 23.4)9.9 (6.1 to 15.1)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.0171 · Difference in percentages: 7.5 · 95% CI 0.6 to 14.6Stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryDuration of Response (DOR) Per RECIST 1.1 in All Participants

For participants who demonstrated a confirmed CR or PR per RECIST 1.1, DOR was defined as the time from first documented evidence of a confirmed CR or PR per RECIST 1.1 until disease progression per RECIST 1.1 or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. DOR assessments were based on blinded central imaging vendor review with confirmation. The DOR per RECIST 1.1 for all participants who experienced a confirmed CR or PR is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Duration of Response (DOR) Per RECIST 1.1 in All Participants
MonthsPembrolizumabStandard Treatment
Duration of Response (DOR) Per RECIST 1.1 in All Participants18.4 (2.7 to 18.4)5.0 (1.4 to 18.8)
SecondaryDOR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

For participants who demonstrated a confirmed CR or PR per RECIST 1.1, DOR was defined as the time from first documented evidence of a confirmed CR or PR per RECIST 1.1 until disease progression per RECIST 1.1 or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. DOR assessments were based on blinded central imaging vendor review with confirmation. The DOR per RECIST 1.1 for all participants with PD-L1 ≥1% CPS who experienced a confirmed CR or PR is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
DOR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS
MonthsPembrolizumabStandard Treatment
DOR Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS18.4 (2.7 to 18.4)9.6 (1.4 to 18.8)
SecondaryTime to Progression (TTP) Per RECIST 1.1 in All Participants

TTP was defined as the time from randomization to the first documented disease progression based on assessments by the blinded central imaging vendor review per RECIST 1.1. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The TTP per RECIST 1.1 for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Time to Progression (TTP) Per RECIST 1.1 in All Participants
MonthsPembrolizumabStandard Treatment
Time to Progression (TTP) Per RECIST 1.1 in All Participants2.2 (2.1 to 3.3)2.2 (2.1 to 3.4)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.14545 (p-value stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)) · Hazard ratio (hr): 0.89 · 95% CI 0.70 to 1.12Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryTTP Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS

TTP was defined as the time from randomization to the first documented disease progression based on assessments by the blinded central imaging vendor review per RECIST 1.1. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression. The TTP per RECIST 1.1 for all participants with PD-L1 ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
TTP Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS
MonthsPembrolizumabStandard Treatment
TTP Per RECIST 1.1 in Participants With PD-L1 ≥1% CPS2.7 (2.1 to 3.5)2.3 (2.1 to 3.4)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.05851 (p-value stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)) · Hazard ratio (hr): 0.81 · 95% CI 0.62 to 1.06Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryPFS Per Modified RECIST in All Participants

PFS was defined as the time from randomization to the first documented progressive disease (PD) per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of ≥5 mm. Note: The appearance of one or more new lesions was also considered PD. Modified RECIST is similar to RECIST 1.1 with the exception that a confirmation assessment of PD (\>4 weeks after the initial PD) is required for participants who remain on treatment following a documented PD per RECIST 1.1. The PFS per modified RECIST for all participants is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
PFS Per Modified RECIST in All Participants
MonthsPembrolizumabStandard Treatment
PFS Per Modified RECIST in All Participants3.5 (3.1 to 4.4)4.8 (4.1 to 5.7)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.65759 · Hazard ratio (hr): 1.04 · 95% CI 0.86 to 1.27Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryPFS Per Modified RECIST 1.1 in Participants With PD-L1 ≥1% CPS

PFS was defined as the time from randomization to the first documented progressive disease (PD) per RECIST 1.1 based on blinded central imaging vendor review or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of ≥5 mm. Note: The appearance of one or more new lesions was also considered PD. Modified RECIST is similar to RECIST 1.1 with the exception that a confirmation assessment of PD (\>4 weeks after the initial PD) is required for participants who remain on treatment following a documented PD per RECIST 1.1. The PFS per modified RECIST for all participants with PD-L1 ≥1% CPS is presented. These efficacy results were reported after complete acquisition of all outstanding survival data using a 15-May-2017 data cut-off date with a database update date of 13-Oct-2017.

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
PFS Per Modified RECIST 1.1 in Participants With PD-L1 ≥1% CPS
MonthsPembrolizumabStandard Treatment
PFS Per Modified RECIST 1.1 in Participants With PD-L1 ≥1% CPS3.6 (3.1 to 4.6)4.8 (4.1 to 5.7)
Statistical analysis
  • Pembrolizumab vs Standard Treatment · Log Rank · p = 0.51982 · Hazard ratio (hr): 1.01 · 95% CI 0.81 to 1.26Cox regression model with treatment as a covariate stratified by ECOG PS (0 vs. 1), HPV status (Positive vs. Negative) \& PD-L1 status (Strongly Positive, Not Strongly Positive)
SecondaryNumber of Participants Who Experienced At Least One Adverse Event (AE) in All Participants

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

Time frame:
Up to approximately 33 months
Reported as:
Count of participants · Participants
Number of Participants Who Experienced At Least One Adverse Event (AE) in All Participants
ParticipantsPembrolizumabStandard Treatment
Number of Participants Who Experienced At Least One Adverse Event (AE) in All Participants240227
SecondaryNumber of Participants Who Experienced At Least One AE in Participants With PD-L1 ≥1% CPS

An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of all participants with PD-L1 ≥1% CPS who experienced at least one AE is presented.

Time frame:
Up to approximately 33 months
Reported as:
Count of participants · Participants
Number of Participants Who Experienced At Least One AE in Participants With PD-L1 ≥1% CPS
ParticipantsPembrolizumabStandard Treatment
Number of Participants Who Experienced At Least One AE in Participants With PD-L1 ≥1% CPS193178
SecondaryNumber of Participants Who Discontinued Study Treatment Due to an AE in All Participants

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

Time frame:
Up to approximately 30 months
Reported as:
Count of participants · Participants
Number of Participants Who Discontinued Study Treatment Due to an AE in All Participants
ParticipantsPembrolizumabStandard Treatment
Number of Participants Who Discontinued Study Treatment Due to an AE in All Participants3036
SecondaryNumber of Participants Who Discontinued Study Treatment Due to an AE in Participants With PD-L1 ≥1% CPS

An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of all participants with PD-L1 ≥1% CPS who discontinued study treatment due to an AE is presented.

Time frame:
Up to approximately 30 months
Reported as:
Count of participants · Participants
Number of Participants Who Discontinued Study Treatment Due to an AE in Participants With PD-L1 ≥1% CPS
ParticipantsPembrolizumabStandard Treatment
Number of Participants Who Discontinued Study Treatment Due to an AE in Participants With PD-L1 ≥1% CPS2529

Adverse events

Collected over Up to approximately 92 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Pembrolizumab First Course228/247 (92.3%)110/246 (44.7%)215/246 (87.4%)
Standard Treatment First Course243/248 (98%)92/234 (39.3%)211/234 (90.2%)
Pembrolizumab Second Course2/2 (100%)0/2 (0%)0/2 (0%)
Most frequent serious events
Showing 10 of 150
Most frequent serious events
EventPembrolizumab First CourseStandard Treatment First CoursePembrolizumab Second Course
PneumoniaInfections and infestations22/24617/2340/2
Febrile neutropeniaBlood and lymphatic system disorders0/2469/2340/2
Tumour haemorrhageNeoplasms benign, malignant and unspecified (incl cysts and polyps)9/2462/2340/2
HypercalcaemiaMetabolism and nutrition disorders7/2460/2340/2
Pneumonia aspirationInfections and infestations6/2463/2340/2
AnaemiaBlood and lymphatic system disorders5/2461/2340/2
DiarrhoeaGastrointestinal disorders5/2462/2340/2
DeathGeneral disorders5/2464/2340/2
PneumonitisRespiratory, thoracic and mediastinal disorders5/2463/2340/2
Mouth haemorrhageGastrointestinal disorders4/2463/2340/2
Most frequent other events
Showing 10 of 42
Most frequent other events
EventPembrolizumab First CourseStandard Treatment First CoursePembrolizumab Second Course
FatigueGeneral disorders49/24663/2340/2
AnaemiaBlood and lymphatic system disorders61/24653/2340/2
Decreased appetiteMetabolism and nutrition disorders31/24645/2340/2
NauseaGastrointestinal disorders36/24644/2340/2
DiarrhoeaGastrointestinal disorders37/24642/2340/2
AstheniaGeneral disorders40/24642/2340/2
RashSkin and subcutaneous tissue disorders26/24641/2340/2
ConstipationGastrointestinal disorders43/24637/2340/2
CoughRespiratory, thoracic and mediastinal disorders43/24637/2340/2
HypothyroidismEndocrine disorders41/24610/2340/2

Baseline characteristics

Age, Continuous
Age, Continuous(Years)PembrolizumabStandard TreatmentTotal
Mean60.3 ± 9.860.2 ± 8.660.2 ± 9.2
Sex: Female, Male
Sex: Female, Male(Participants)PembrolizumabStandard TreatmentTotal
Female404383
Male207205412
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)PembrolizumabStandard TreatmentTotal
Hispanic or Latino211233
Not Hispanic or Latino182195377
Unknown or Not Reported444185
Race (NIH/OMB)
Race (NIH/OMB)(Participants)PembrolizumabStandard TreatmentTotal
American Indian or Alaska Native202
Asian151631
Native Hawaiian or Other Pacific Islander000
Black or African American3710
White206207413
More than one race437
Unknown or Not Reported171532
Programmed Cell Death-Ligand 1 (PD-L1) Expression Level: Tumor Proportion Score (TPS)
Programmed Cell Death-Ligand 1 (PD-L1) Expression Level: Tumor Proportion Score (TPS)(Participants)PembrolizumabStandard TreatmentTotal
TPS = 0%10393196
1% ≤ TPS <50%7987166
TPS ≥ 50%6465129
Missing134
Eastern Cooperative Oncology Group (ECOG) Performance Status (PS)
Eastern Cooperative Oncology Group (ECOG) Performance Status (PS)(Participants)PembrolizumabStandard TreatmentTotal
EGOG PS=07168139
ECOG PS=1176179355
ECOG PS=2011
Human Papillomavirus (HPV) Tumor Status
Human Papillomavirus (HPV) Tumor Status(Participants)PembrolizumabStandard TreatmentTotal
Positive HPV Status6157118
Negative HPV Status186191377
PD-L1 Combined Positive Score (CPS) Status
PD-L1 Combined Positive Score (CPS) Status(Participants)PembrolizumabStandard TreatmentTotal
PD-L1 CPS <15054104
PD-L1 CPS ≥1196191387
Missing134
08

Study locations

No study locations are listed for this record.

09

References and documents

Publications

  • Xin W, Ding H, Fang Q, Zheng X, Tong Y, Xu G, Yang G. Cost-effectiveness of pembrolizumab for treatment of platinum-resistant recurrent or metastatic head and neck squamous cell carcinoma in China: an economic analysis based on a randomised, open-label, phase III trial. BMJ Open. 2020 Dec 18;10(12):e038867. doi: 10.1136/bmjopen-2020-038867. PubMed 33371020 ↗
  • Emancipator K, Huang L, Aurora-Garg D, Bal T, Cohen EEW, Harrington K, Soulieres D, Le Tourneau C, Licitra L, Burtness B, Swaby R. Comparing programmed death ligand 1 scores for predicting pembrolizumab efficacy in head and neck cancer. Mod Pathol. 2021 Mar;34(3):532-541. doi: 10.1038/s41379-020-00710-9. Epub 2020 Nov 25. PubMed 33239737 ↗
  • Pai SI, Faivre S, Licitra L, Machiels JP, Vermorken JB, Bruzzi P, Gruenwald V, Giglio RE, Leemans CR, Seiwert TY, Soulieres D. Comparative analysis of the phase III clinical trials of anti-PD1 monotherapy in head and neck squamous cell carcinoma patients (CheckMate 141 and KEYNOTE 040). J Immunother Cancer. 2019 Apr 3;7(1):96. doi: 10.1186/s40425-019-0578-0. PubMed 30944020 ↗
  • Cohen EEW, Soulieres D, Le Tourneau C, Dinis J, Licitra L, Ahn MJ, Soria A, Machiels JP, Mach N, Mehra R, Burtness B, Zhang P, Cheng J, Swaby RF, Harrington KJ; KEYNOTE-040 investigators. Pembrolizumab versus methotrexate, docetaxel, or cetuximab for recurrent or metastatic head-and-neck squamous cell carcinoma (KEYNOTE-040): a randomised, open-label, phase 3 study. Lancet. 2019 Jan 12;393(10167):156-167. doi: 10.1016/S0140-6736(18)31999-8. Epub 2018 Nov 30. Erratum In: Lancet. 2019 Jan 12;393(10167):132. doi: 10.1016/S0140-6736(18)33261-6. PubMed 30509740 ↗
  • Guo T, Califano JA. Molecular biology and immunology of head and neck cancer. Surg Oncol Clin N Am. 2015 Jul;24(3):397-407. doi: 10.1016/j.soc.2015.03.002. Epub 2015 Apr 20. PubMed 25979390 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Data sharing details ↗ · engagezone.msd.com

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2014 to primary completion in May 2017, 29 months.

Results were first posted in Aug 2018, 1 year 2 months after primary completion.

Of 21 phase 3 interventional studies under Carcinoma, Squamous Cell, half reached primary completion within 42 months of starting (the median), counting those still running; a quarter within 32 and three quarters within 91. This study's 29 months is below that.

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

Registered
Sep 25, 2014
First posted
Sep 29, 2014
StartActual
Nov 17, 2014
Primary completionActual
May 15, 2017
CompletionActual
Aug 15, 2022
Results first posted
Aug 13, 2018
Last update
Jul 17, 2023
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 Jul 17, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02252042
Responsible party
Sponsor
First posted
Sep 29, 2014
Start date
Nov 17, 2014
Primary completion
May 15, 2017
Completion
Aug 15, 2022
Results posted
Aug 13, 2018
Last update
Jul 17, 2023

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 ↗

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Studies of the drug tested here: Pembrolizumab

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